{"pageNumber":"22","pageRowStart":"525","pageSize":"25","recordCount":676,"records":[{"id":53171,"text":"pp1683 - 2003 - The Role of Geoscience Information in Reducing Catastrophic Loss Using a Web-Based Economics Experiment","interactions":[],"lastModifiedDate":"2012-02-02T00:11:46","indexId":"pp1683","displayToPublicDate":"2003-12-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1683","title":"The Role of Geoscience Information in Reducing Catastrophic Loss Using a Web-Based Economics Experiment","docAbstract":"What role can geoscience information play in the assessment of risk and the value of insurance, especially for natural hazard type risks? In an earlier, related paper Ganderton and others (2000) provided subjects with relatively simple geoscience information concerning natural hazard-type risks. Their research looked at how subjects purchase insurance when faced with relatively low probability but high loss risks of the kind that characterize natural hazards and now, increasingly, manmade disasters. They found evidence to support the expected utility theory (definitions of economics terms can be found in a glossary at the end of report), yet there remained the implication that subjects with excessive aversion to risk were willing to pay considerably more for insurance than the actuarially fair price plus any reasonable risk premium. Here, we report the results of additional experiments that provide further support for the basic postulates of expected utility theory. However, these new experiments add considerably to the decision environment facing subjects by offering an option to purchase geoscientific information that would assist them when calculating expected losses from hazards more accurately. \r\n\r\nUsing an Internet-based mechanism to present information and gather data in an experimental setting, this research provided subjects with considerable textual and graphical information, and time to process it. Over a period of three months, almost 400 subjects participated in on-line experiments that generated approximately 22,000 usable data points for the empirical analysis discussed in this report. \r\n\r\nIn the design of the experiment, we modeled the decisions to purchase (1) a detailed map giving subjects more information regarding the distribution of losses from a hazard and (2) insurance to indemnify them from any losses should they occur. On the basis of this design, we find strong evidence in support of the expected utility theory. Many of the findings reinforce those found in the early, similar study (Ganderton and others, 2000). However, this research also finds interactions between the decision to become better informed and the decision to insure. We chose an empirical framework that allows for both explicit and implicit (unobservable) correlations between the two decisions. The results suggest that at the end of the computer game subjects recognize the benefits of greater geoscience information. They take advantage of it, but are sensitive to its cost. When subjects use the more detailed information, they are more likely to purchase insurance when it offers a net benefit. ","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/pp1683","usgsCitation":"Bernknopf, R.L., Brookshire, D.S., and Ganderton, P.T., 2003, The Role of Geoscience Information in Reducing Catastrophic Loss Using a Web-Based Economics Experiment (Version 1.0): U.S. Geological Survey Professional Paper 1683, v, 29 p., https://doi.org/10.3133/pp1683.","productDescription":"v, 29 p.","costCenters":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"links":[{"id":124591,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/pp_1683.jpg"},{"id":11437,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/1683/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67ac91","contributors":{"authors":[{"text":"Bernknopf, Richard L.","contributorId":97061,"corporation":false,"usgs":true,"family":"Bernknopf","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":246819,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brookshire, David S.","contributorId":32537,"corporation":false,"usgs":true,"family":"Brookshire","given":"David","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":246818,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ganderton, Philip T.","contributorId":11062,"corporation":false,"usgs":true,"family":"Ganderton","given":"Philip","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":246817,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":69708,"text":"i2766 - 2003 - Geologic map of the Mount Trumbull 30' X 60' quadrangle, Mohave and Coconino Counties, northwestern Arizona","interactions":[],"lastModifiedDate":"2022-04-14T18:33:04.692821","indexId":"i2766","displayToPublicDate":"2003-11-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2766","title":"Geologic map of the Mount Trumbull 30' X 60' quadrangle, Mohave and Coconino Counties, northwestern Arizona","docAbstract":"The geologic map of the Mount Trumbull 30' x 60' quadrangle is a cooperative product of the U.S. Geological Survey, the National Park Service, and the Bureau of Land Management that provides geologic map coverage and regional geologic information for visitor services and resource management of Grand Canyon National Park, Lake Mead Recreational Area, and Grand Canyon Parashant National Monument, Arizona. This map is a compilation of previous and new geologic mapping that encompasses the Mount Trumbull 30' x 60' quadrangle of Arizona.\n\n\n This digital database, a compilation of previous and new geologic mapping, contains geologic data used to produce the 100,000-scale Geologic Map of the Mount Trumbull 30' x 60' Quadrangle, Mohave and Coconino Counties, Northwestern Arizona. The geologic features that were mapped as part of this project include: geologic contacts and faults, bedrock and surficial geologic units, structural data, fold axes, karst features, mines, and volcanic features.\n\n This map was produced using 1:24,000-scale 1976 infrared aerial photographs followed by extensive field checking. Volcanic rocks were mapped as separate units when identified on aerial photographs as mappable and distinctly separate units associated with one or more pyroclastic cones and flows. Many of the Quaternary alluvial deposits that have similar lithology but different geomorphic characteristics were mapped almost entirely by photogeologic methods. Stratigraphic position and amount of erosional degradation were used to determine relative ages of alluvial deposits having similar lithologies. Each map unit and structure was investigated in detail in the field to ensure accuracy of description.\n\n Punch-registered mylar sheets were scanned at the Flagstaff Field Center using an Optronics 5040 raster scanner at a resolution of 50 microns (508 dpi). The scans were output in .rle format, converted to .rlc, and then converted to ARC/INFO grids. A tic file was created in geographic coordinates and projected into the base map projection (Polyconic) using a central meridian of -113.500. The tic file was used to transform the grid into Universal Transverse Mercator projection.\n\n The linework was vectorized using gridline. Scanned lines were edited interactively in ArcEdit. Polygons were attributed in ArcEdit and all artifacts and scanning errors visible at 1:100,000 were removed. Point data were digitized onscreen.\n\n Due to the discovery of digital and geologic errors on the original files, the ARC/INFO coverages were converted to a personal geodatabase and corrected in ArcMap. The feature classes which define the geologic units, lines and polygons, are topologically related and maintained in the geodatabase by a set of validation rules.\n\n The internal database structure and feature attributes were then modified to match other geologic map databases being created for the Grand Canyon region. Faults were edited with the downthrown block, if known, on the 'right side' of the line. The 'right' and 'left' sides of a line are determined from 'starting' at the line's 'from node' and moving to the line's end or 'to node'.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/i2766","usgsCitation":"Billingsley, G.H., and Wellmeyer, J.L., 2003, Geologic map of the Mount Trumbull 30' X 60' quadrangle, Mohave and Coconino Counties, northwestern Arizona: U.S. Geological Survey IMAP 2766, Report; 36 p.; 1 Plate: 38.50 × 54.51 inches: Database; Metadata; Readme, https://doi.org/10.3133/i2766.","productDescription":"Report; 36 p.; 1 Plate: 38.50 × 54.51 inches: Database; Metadata; Readme","additionalOnlineFiles":"Y","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":191350,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":398741,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_62285.htm"},{"id":263760,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/imap/i2766/mtr_shape.zip"},{"id":263759,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/imap/i2766/mtr_db.zip"},{"id":263758,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/imap/i2766/mtrmeta.txt"},{"id":263757,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/imap/i2766/i2766_pamphlet.pdf"},{"id":263756,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/imap/i2766/mtrreadme.txt"},{"id":263755,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/imap/i2766/i2766_map.pdf"},{"id":6379,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i2766","linkFileType":{"id":5,"text":"html"}}],"scale":"100000","country":"United States","state":"Arizona","county":"Coconino County, Mohave County","otherGeospatial":"Mount Trumbull 30' X 60' quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114,36 ], [ -114,36.5 ], [ -113,36.5 ], [ -113,36 ], [ -114,36 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b12e4b07f02db6a2cd7","contributors":{"authors":[{"text":"Billingsley, George H.","contributorId":20711,"corporation":false,"usgs":true,"family":"Billingsley","given":"George","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":280952,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wellmeyer, Jessica L.","contributorId":8177,"corporation":false,"usgs":true,"family":"Wellmeyer","given":"Jessica","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":280951,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":51520,"text":"ofr03302 - 2003 - Geologic map and digital database of the Redlands 7.5' quadrangle, San Bernardino and Riverside Counties, California","interactions":[],"lastModifiedDate":"2023-06-22T16:57:23.554746","indexId":"ofr03302","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-302","title":"Geologic map and digital database of the Redlands 7.5' quadrangle, San Bernardino and Riverside Counties, California","docAbstract":"

This geologic database of the Redlands 7.5' quadrangle was prepared by the Southern California Areal Mapping Project (SCAMP), a regional geologic-mapping project sponsored jointly by the U.S. Geological Survey and the California Geological Survey. The database was developed as a contribution to the National Cooperative Geologic Mapping Program's National Geologic Map Database, and is intended to provide a general geologic setting of the Redlands quadrangle. The database and map provide information about earth materials and geologic structures, including faults and folds that have developed in the quadrangle due to complexities in the San Andreas Fault system.

\n
\n

The Redlands 7.5' quadrangle contains earth materials and structures that provide insight into the late Cenozoic geologic evolution of the southern California Inland Empire region. Important stratigraphic and structural elements include (1) the modern trace of the San Andreas and San Jacinto faults and (2) late Tertiary and Quaternary sedimentary materials and geologic structures that formed during the last million years or so and that record complex geologic interactions within the San Andreas Fault system. These materials and the structures that deform them provide the geologic framework for investigations of earthquake hazards and ground-water recharge and subsurface flow. Geologic information contained in the Redlands database is general-purpose data that is applicable to land-related investigations in the earth and biological sciences. The term \"general-purpose\" means that all geologic-feature classes have minimal information content adequate to characterize their general geologic characteristics and to interpret their general geologic history. However, no single feature class has enough information to definitively characterize its properties and origin. For this reason the database cannot be used for site-specific geologic evaluations, although it can be used to plan and guide investigations at the site-specific level.

\n
\n

This summary pamphlet discusses major categories of surficial materials in the Redlands quadrangle, and provides a conceptual framework and basis for how geologicmap units containing such materials are recognized and correlated.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03302","collaboration":"Prepared in cooperation with San Bernardino Vally Municipal Water District and California Geological Survey","usgsCitation":"Matti, J.C., Morton, D.M., Cox, B.F., Kendrick, K.J., Cossette, P.M., Jones, B., and Kennedy, S.A., 2003, Geologic map and digital database of the Redlands 7.5' quadrangle, San Bernardino and Riverside Counties, California (Version 1.0): U.S. Geological Survey Open-File Report 2003-302, Pamphlet: 14 p.; 1 Plate: 44.35 x 31.14 inches; Readme: Metadata; Database, https://doi.org/10.3133/ofr03302.","productDescription":"Pamphlet: 14 p.; 1 Plate: 44.35 x 31.14 inches; Readme: Metadata; Database","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":179213,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03302.gif"},{"id":110445,"rank":11,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_readme.pdf","linkFileType":{"id":5,"text":"html"},"description":"58938"},{"id":4524,"rank":10,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0302/","linkFileType":{"id":5,"text":"html"}},{"id":398349,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_58938.htm"},{"id":285762,"rank":8,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_map.pdf"},{"id":285759,"rank":7,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2003/0302/red_met.html"},{"id":285763,"rank":6,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_pamphlet.pdf"},{"id":285760,"rank":5,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2003/0302/red.tar.gz"},{"id":285761,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_attribute_codes.pdf"},{"id":285764,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0302/red_map.ps.gz"},{"id":285765,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_dmu.pdf"}],"scale":"24000","projection":"Polyconic projection","country":"United States","state":"California","county":"Riverside County, San Bernardino County","otherGeospatial":"Redlands quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.25,34.0 ], [ -117.25,34.125 ], [ -117.125,34.125 ], [ -117.125,34.0 ], [ -117.25,34.0 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a49be","contributors":{"authors":[{"text":"Matti, Jonathan C. jmatti@usgs.gov","contributorId":3666,"corporation":false,"usgs":true,"family":"Matti","given":"Jonathan","email":"jmatti@usgs.gov","middleInitial":"C.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":243819,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morton, Douglas M. scamp@usgs.gov","contributorId":4102,"corporation":false,"usgs":true,"family":"Morton","given":"Douglas","email":"scamp@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":243820,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cox, Brett F. bcox@usgs.gov","contributorId":5793,"corporation":false,"usgs":true,"family":"Cox","given":"Brett","email":"bcox@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":243821,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kendrick, Katherine J. 0000-0002-9839-6861 kendrick@usgs.gov","orcid":"https://orcid.org/0000-0002-9839-6861","contributorId":2716,"corporation":false,"usgs":true,"family":"Kendrick","given":"Katherine","email":"kendrick@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":243818,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cossette, Pamela M. 0000-0002-9608-6595 pcossette@usgs.gov","orcid":"https://orcid.org/0000-0002-9608-6595","contributorId":1458,"corporation":false,"usgs":true,"family":"Cossette","given":"Pamela","email":"pcossette@usgs.gov","middleInitial":"M.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":243822,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jones, Bradley","contributorId":140585,"corporation":false,"usgs":true,"family":"Jones","given":"Bradley","email":"","affiliations":[],"preferred":false,"id":243823,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kennedy, Stephen A.","contributorId":140207,"corporation":false,"usgs":true,"family":"Kennedy","given":"Stephen","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":243824,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":51518,"text":"ofr03294 - 2003 - Hydrogeologic factors that influence ground water movement in the desert southwest United States","interactions":[],"lastModifiedDate":"2023-06-22T16:55:26.267394","indexId":"ofr03294","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-294","title":"Hydrogeologic factors that influence ground water movement in the desert southwest United States","docAbstract":"

A project to study ground-water and surface-water interactions in the desert southwestern United States was initiated in 2001 by the Tucson, Arizona office of the Water Resources Division, U.S. Geological Survey (USGS). One of the goals of the Southwest Ground-water Resources Project was to develop a regional synthesis that includes the use of available digital geologic data, which is growing rapidly due to the increasing use of Geographic Information Systems (GIS). Included in this report are the digital maps and databases of geologic information that should have a direct impact on the studies of ground-water flow and surface-water interaction.

\n
\n

Ground-water flow is governed by many geologic factors or elements including rock and soil permeability, stratigraphy and structural features. These elements directly influence ground-water flow, which is key to understanding the possible inter-connectivity of aquifer systems in desert basins of the southwestern United States. We derive these elements from the evaluation of regional geology and localized studies of hydrogeologic basins. These elements can then be applied to other unstudied areas throughout the desert southwest. This report presents a regional perspective of the geologic elements controlling ground-water systems in the desert southwest that may eventually lead to greater focus on smaller sub-regions and ultimately, to individual ground-water basins.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03294","usgsCitation":"Chuang, F.C., McKee, E.H., and Howard, K.A., 2003, Hydrogeologic factors that influence ground water movement in the desert southwest United States (Version 1.0): U.S. Geological Survey Open-File Report 2003-294, 37 p., https://doi.org/10.3133/ofr03294.","productDescription":"37 p.","numberOfPages":"38","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":285740,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0294/table1.xls"},{"id":285739,"rank":5,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2003/0294/of03-294db.zip"},{"id":285737,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0294/pdf/of03-294pdf.zip"},{"id":285738,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0294/eps/of03-294ps.zip"},{"id":285736,"rank":6,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0294/pdf/of03-294.pdf"},{"id":4522,"rank":7,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0294/","linkFileType":{"id":5,"text":"html"}},{"id":178670,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03294.jpg"}],"scale":"2000000","country":"United States","state":"Arizona, California, Colorado, Idaho, Nevada, New Mexico, Oregon, Utah","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.0,30.0 ], [ -123.0,42.0 ], [ -107.0,42.0 ], [ -107.0,30.0 ], [ -123.0,30.0 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4fe4b07f02db6287b6","contributors":{"authors":[{"text":"Chuang, Frank C.","contributorId":35600,"corporation":false,"usgs":true,"family":"Chuang","given":"Frank","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":243807,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKee, Edwin H. mckee@usgs.gov","contributorId":3728,"corporation":false,"usgs":true,"family":"McKee","given":"Edwin","email":"mckee@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":243806,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Howard, Keith A. 0000-0002-6462-2947 khoward@usgs.gov","orcid":"https://orcid.org/0000-0002-6462-2947","contributorId":3439,"corporation":false,"usgs":true,"family":"Howard","given":"Keith","email":"khoward@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":243805,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50872,"text":"wri034128 - 2003 - Water Resources of the Ground-Water System in the Unconsolidated Deposits of the Colville River Watershed, Stevens County, Washington","interactions":[],"lastModifiedDate":"2012-02-02T00:11:29","indexId":"wri034128","displayToPublicDate":"2003-07-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2003-4128","title":"Water Resources of the Ground-Water System in the Unconsolidated Deposits of the Colville River Watershed, Stevens County, Washington","docAbstract":"A study of the water resources of the ground-water system in the unconsolidated deposits of the Colville River Watershed provided the Colville River Watershed Planning Team with an assessment of the hydrogeologic framework, preliminary determinations of how the shallow and deeper parts of the ground-water system interact with each other and the surface-water system, descriptions of water-quantity characteristics including water-use estimates and an estimated water budget for the watershed, and an assessment of further data needs. The 1,007-square-mile watershed, located in Stevens County in northeastern Washington, is closed to further surface-water appropriations throughout most of the basin during most seasons. The information provided by this study will assist local watershed planners in assessing the status of water resources within the Colville River Watershed (Water Resources Inventory Area 59).\r\n\r\nThe hydrogeologic framework consists of glacial and alluvial deposits that overlie bedrock and are more than 700 feet thick in places. Twenty-six hydrogeologic sections were constructed, using a map of the surficial geology and drillers' logs for more than 350 wells. Seven hydrogeologic units were delineated: the Upper outwash aquifer, the Till confining unit, the Older outwash aquifer, the Colville Valley confining unit, the Lower aquifer, the Lower confining unit, and Bedrock.\r\n\r\nSynoptic stream discharge measurements made in September 2001 identified gaining and losing reaches over the unconsolidated valley deposits. During the September measurement period, the Colville River gained flow from the shallow ground-water system near its headwaters to the town of Valley and lost flow to the shallow ground-water system from Valley to Chewelah. Downstream from Chewelah, the river generally lost flow, but the amounts lost were small and within measurement error. Ground-water levels indicate that the Lower aquifer and the shallow ground-water system may act as fairly independent systems. The presence of flowing wells completed in the Lower aquifer indicates upward head gradients along much of the Colville Valley floor. \r\n\r\nTotal surface- and ground-water withdrawals during 2001 were estimated to be 9,340 million gallons. Water use for 2001, as a percentage of the total, was 75.3 percent for irrigation, 16.3 percent for public supply, 6.5 percent for private wells, and about 1 percent each for industrial and livestock use. An approximate water budget for a typical year in the Colville River Watershed shows that 27 inches of precipitation are balanced by 4.2 inches of streamflow discharge from the basin, 0.3 inch of ground-water discharge from the basin, and 22.5 inches of evapotranspiration.","language":"ENGLISH","doi":"10.3133/wri034128","usgsCitation":"Kahle, S.C., Longpre, C.I., Smith, R.R., Sumioka, S.S., Watkins, A.M., and Kresch, D.L., 2003, Water Resources of the Ground-Water System in the Unconsolidated Deposits of the Colville River Watershed, Stevens County, Washington: U.S. Geological Survey Water-Resources Investigations Report 2003-4128, 84 p., https://doi.org/10.3133/wri034128.","productDescription":"84 p.","costCenters":[],"links":[{"id":4639,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri034128/","linkFileType":{"id":5,"text":"html"}},{"id":178990,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4987e4b07f02db5af274","contributors":{"authors":[{"text":"Kahle, Sue C. 0000-0003-1262-4446 sckahle@usgs.gov","orcid":"https://orcid.org/0000-0003-1262-4446","contributorId":3096,"corporation":false,"usgs":true,"family":"Kahle","given":"Sue","email":"sckahle@usgs.gov","middleInitial":"C.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":242516,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Longpre, Claire I.","contributorId":85253,"corporation":false,"usgs":true,"family":"Longpre","given":"Claire","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":242521,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, Raymond R.","contributorId":50217,"corporation":false,"usgs":true,"family":"Smith","given":"Raymond","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":242518,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sumioka, Steve S.","contributorId":71615,"corporation":false,"usgs":true,"family":"Sumioka","given":"Steve","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":242519,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Watkins, Anni M.","contributorId":76818,"corporation":false,"usgs":true,"family":"Watkins","given":"Anni","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":242520,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kresch, David L.","contributorId":46084,"corporation":false,"usgs":true,"family":"Kresch","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":242517,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70159339,"text":"70159339 - 2003 - Effects of landscape characteristics on land-cover class accuracy","interactions":[],"lastModifiedDate":"2015-10-22T11:25:31","indexId":"70159339","displayToPublicDate":"2003-03-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"Effects of landscape characteristics on land-cover class accuracy","docAbstract":"

The effects of patch size and land-cover heterogeneity on classification accuracy were evaluated using reference data collected for the National Land-Cover Data (NLCD) set accuracy assessment. Logistic regression models quantified the relationship between classification accuracy and these landscape variables for each land-cover class at both the Anderson Levels I and II classification schemes employed in the NLCD. The general relationships were consistent, with the odds of correctly classifying a pixel increasing as patch size increased and decreasing as heterogeneity increased. Specific characteristics of these relationships, however, showed considerable diversity among the various classes. Odds ratios are reported to document these relationships. Interaction between the two landscape variables was not a significant influence on classification accuracy, indicating that the effect of heterogeneity was not impacted by the sample being in a small or large patch. Landscape variables remained significant predictors of class-specific accuracy even when adjusted for regional differences in the mapping and assessment processes or landscape characteristics. The land-cover class-specific analyses provide insight into sources of classification error and a capacity for predicting error based on a pixel's mapped land-cover class, patch size and surrounding land-cover heterogeneity.

","language":"English","publisher":"Elsevier","doi":"10.1016/S0034-4257(02)00126-8","usgsCitation":"Smith, J.H., Stehman, S.V., Wickham, J.D., and Yang, L., 2003, Effects of landscape characteristics on land-cover class accuracy: Remote Sensing of Environment, v. 84, no. 3, p. 342-349, https://doi.org/10.1016/S0034-4257(02)00126-8.","productDescription":"8 p.","startPage":"342","endPage":"349","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":310421,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"84","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"562a08bce4b011227bf1fd4c","contributors":{"authors":[{"text":"Smith, Jonathan H. jhsmith@usgs.gov","contributorId":2900,"corporation":false,"usgs":true,"family":"Smith","given":"Jonathan","email":"jhsmith@usgs.gov","middleInitial":"H.","affiliations":[{"id":5055,"text":"Land Change Science","active":true,"usgs":true}],"preferred":true,"id":578074,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stehman, Stephen V.","contributorId":77283,"corporation":false,"usgs":true,"family":"Stehman","given":"Stephen","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":578075,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wickham, James D.","contributorId":72278,"corporation":false,"usgs":false,"family":"Wickham","given":"James","email":"","middleInitial":"D.","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":578076,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yang, Limin 0000-0002-2843-6944 lyang@usgs.gov","orcid":"https://orcid.org/0000-0002-2843-6944","contributorId":4305,"corporation":false,"usgs":true,"family":"Yang","given":"Limin","email":"lyang@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":578077,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70026115,"text":"70026115 - 2003 - Ostracode-based reconstruction from 23,300 to about 20,250 cal yr BP of climate, and paleohydrology of a groundwater-fed pond near St. Louis, Missouri","interactions":[],"lastModifiedDate":"2012-03-12T17:20:21","indexId":"70026115","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2411,"text":"Journal of Paleolimnology","active":true,"publicationSubtype":{"id":10}},"title":"Ostracode-based reconstruction from 23,300 to about 20,250 cal yr BP of climate, and paleohydrology of a groundwater-fed pond near St. Louis, Missouri","docAbstract":"The water chemistry of a groundwater-fed sinkhole-pond near St. Louis, Missouri, and its associated climate during the last glaciation are reconstructed by comparison with autecological data of modern ostracodes from about 5,500 sites in Canada. A 4.8-m succession of fossiliferous sediment yielded ostracode assemblages that collectively are generally found today in ponds in North America including the species Cyclocypris ampla, C. laevis, Cypridopsis vidua, Candona crogmaniana, C. distincta, and C. ohioensis. Fossils of Picea needles and the ostracode Cyclocypris sharpei imply that best analog sites for the succession are in central to south-central Canada. The pond formed 23,300 ?? 400 cal yr BP when a sinkhole became plugged by a clay bed about 1 m thick. By about 20,250 cal yr BP, the pond had desiccated and was buried by loess. The sediment accumulation rate was about 0.18 cm/yr, and each sample interval (6 cm) represents a time slice of ???33 years. Data from this record provides the first fairly high resolution proxy record of the glacial paleoclimate of the mid-latitude of North America. The analog data indicate the water in the hydrologically-open spring-fed pond was less than 1 m deep. The paleoclimatic reconstructions imply gradually drier conditions and uniform, cool temperatures. The shallow water depth indicates that the temperature reconstruction is robust with mean annual temperatures (MATs) that ranged between 0.8 and 3.9??C, and mean July temperatures that ranged from 16.8 and 18.1??C. Other estimated climatic parameters include mean annual precipitation (MAP; 430 to 840 mm/yr), and moisture balance (P-E; -111 to 298 mm/yr). Compared to values measured today at St. Louis, the MAP was about 400 mm less, MAT about 10??C cooler, and P-E, about the same. These values are consistent with other published reconstructions based on modern analog analysis of fossil beetles and pollen, and paleothermometry based on amino acid racemization. The total dissolved solids (TDS) progressively increased from about 87 to 431 mg/L. Changes in TDS reflect either the balance between the relative inputs of karst groundwater and overland flow, or changes in the duration of water-rock interaction associated with the groundwater. The postulated long-term 900 ?? 200 year cyclicity of growing-season moisture and temperature, attributed to El Nin??o-Southern Oscillation cycles, is not expressed in the reconstructed hydrologic or climatic data. This is attributed, in part, to the mediating effect on temperature by monothermic groundwater input to this flow-through system.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Paleolimnology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1023/A:1023227205587","issn":"09212728","usgsCitation":"Curry, B., and Delorme, D., 2003, Ostracode-based reconstruction from 23,300 to about 20,250 cal yr BP of climate, and paleohydrology of a groundwater-fed pond near St. Louis, Missouri: Journal of Paleolimnology, v. 29, no. 2, p. 199-207, https://doi.org/10.1023/A:1023227205587.","startPage":"199","endPage":"207","numberOfPages":"9","costCenters":[],"links":[{"id":208760,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1023227205587"},{"id":234733,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a715ee4b0c8380cd765a7","contributors":{"authors":[{"text":"Curry, B.","contributorId":89320,"corporation":false,"usgs":true,"family":"Curry","given":"B.","email":"","affiliations":[],"preferred":false,"id":407977,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Delorme, D.","contributorId":92845,"corporation":false,"usgs":true,"family":"Delorme","given":"D.","email":"","affiliations":[],"preferred":false,"id":407978,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70025241,"text":"70025241 - 2003 - Late Holocene estuarine-inner shelf interactions; is there evidence of an estuarine retreat path for Tampa Bay, Florida?","interactions":[],"lastModifiedDate":"2017-08-16T10:51:45","indexId":"70025241","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Late Holocene estuarine-inner shelf interactions; is there evidence of an estuarine retreat path for Tampa Bay, Florida?","docAbstract":"The purpose of this study was to determine if and how a large, modern estuarine system, situated in the middle of an ancient carbonate platform, has affected its adjacent inner shelf both in the past during the last, post-glacial sea-level rise and during the present. An additional purpose was to determine if and how this inner shelf seaward of a major estuary differed from the inner shelves located just to the north and south but seaward of barrier-island shorelines. Through side-scan sonar mosaicking, bathymetric studies, and ground-truthing using surface grab samples as well as diver observations, two large submarine sand plains were mapped - one being the modern ebb-tidal delta and the other interpreted to be a relict ebb-tidal delta formed earlier in the Holocene. The most seaward portion of the inner shelf studied consists of a field of lobate, bathymetrically elevated, fine-sand accumulations, which were interpreted to be sediment-starved 3D dunes surrounded by small 2D dunes composed of coarse molluscan shell gravel. Additionally, exposed limestone hardbottoms supporting living benthic communities were found as well. This modern shelf sedimentary environment is situated on a large, buried shelf valley, which extends eastward beneath the modern Tampa Bay estuary. These observations plus the absence of an incised shelf valley having surficial bathymetric expression, and the absence of sand bodies normally associated with back-tracking estuarine systems indicate that there was no cross-shelf estuarine retreat path formed during the last rise in sea level. Instead, the modern Tampa Bay formed within a mid-platform, low-relief depression, which was flooded by rising marine waters late in the Holocene. With continued sea-level rise in the late Holocene, this early embayment was translated eastward or landward to its present position, whereby a larger ebb-tidal delta prograded out onto the inner shelf. Extensive linear sand ridges, common to the inner shelves to the north and south, did not form in this shelf province because it was a low-energy, open embayment lacking the wave climate and nearshore zone necessary to create such sand bodies. The distribution of bedforms on the inner shelf and the absence of seaward-oriented 2D dunes on the modern ebb-tidal delta indicate that the modern estuarine system has had little effect on its adjacent inner shelf. ?? 2003 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0025-3227(03)00184-1","issn":"00253227","usgsCitation":"Donahue, B., Hine, A.C., Tebbens, S., Locker, S., and Twichell, D., 2003, Late Holocene estuarine-inner shelf interactions; is there evidence of an estuarine retreat path for Tampa Bay, Florida?: Marine Geology, v. 200, no. 1-4, p. 219-241, https://doi.org/10.1016/S0025-3227(03)00184-1.","productDescription":"23 p.","startPage":"219","endPage":"241","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":236031,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209501,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0025-3227(03)00184-1"}],"volume":"200","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a44e5e4b0c8380cd66e9c","contributors":{"authors":[{"text":"Donahue, B.T.","contributorId":12529,"corporation":false,"usgs":true,"family":"Donahue","given":"B.T.","email":"","affiliations":[],"preferred":false,"id":404398,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hine, A. C.","contributorId":21197,"corporation":false,"usgs":true,"family":"Hine","given":"A.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":404399,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tebbens, S.","contributorId":57641,"corporation":false,"usgs":true,"family":"Tebbens","given":"S.","affiliations":[],"preferred":false,"id":404400,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Locker, S. D.","contributorId":81532,"corporation":false,"usgs":true,"family":"Locker","given":"S. D.","affiliations":[],"preferred":false,"id":404401,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Twichell, D.C.","contributorId":84304,"corporation":false,"usgs":true,"family":"Twichell","given":"D.C.","affiliations":[],"preferred":false,"id":404402,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70025983,"text":"70025983 - 2003 - Mapping mine wastes and analyzing areas affected by selenium-rich water runoff in southeast Idaho using AVIRIS imagery and digital elevation data","interactions":[],"lastModifiedDate":"2012-03-12T17:20:35","indexId":"70025983","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"Mapping mine wastes and analyzing areas affected by selenium-rich water runoff in southeast Idaho using AVIRIS imagery and digital elevation data","docAbstract":"Remotely sensed hyperspectral and digital elevation data from southeastern Idaho are combined in a new method to assess mine waste contamination. Waste rock from phosphorite mining in the area contains selenium, cadmium, vanadium, and other metals. Toxic concentrations of selenium have been found in plants and soils near some mine waste dumps. Eighteen mine waste dumps and five vegetation cover types in the southeast Idaho phosphate district were mapped by using Airborne Visible-Infrared Imaging Spectrometer (AVIRIS) imagery and field data. The interaction of surface water runoff with mine waste was assessed by registering the AVIRIS results to digital elevation data, enabling determinations of (1) mine dump morphologies, (2) catchment watershed areas above each mine dump, (3) flow directions from the dumps, (4) stream gradients, and (5) the extent of downstream wetlands available for selenium absorption. Watersheds with the most severe selenium contamination, such as the South Maybe Canyon watershed, are associated with mine dumps that have large catchment watershed areas, high stream gradients, a paucity of downstream wetlands, and dump forms that tend to obstruct stream flow. Watersheds associated with low concentrations of dissolved selenium, such as Angus Creek, have mine dumps with small catchment watershed areas, low stream gradients, abundant wetlands vegetation, and less obstructing dump morphologies. ?? 2002 Elsevier Science Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Remote Sensing of Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0034-4257(02)00132-3","issn":"00344257","usgsCitation":"Mars, J., and Crowley, J., 2003, Mapping mine wastes and analyzing areas affected by selenium-rich water runoff in southeast Idaho using AVIRIS imagery and digital elevation data: Remote Sensing of Environment, v. 84, no. 3, p. 422-436, https://doi.org/10.1016/S0034-4257(02)00132-3.","startPage":"422","endPage":"436","numberOfPages":"15","costCenters":[],"links":[{"id":208818,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0034-4257(02)00132-3"},{"id":234838,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"84","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5060e4b0c8380cd6b65e","contributors":{"authors":[{"text":"Mars, J.C.","contributorId":74833,"corporation":false,"usgs":true,"family":"Mars","given":"J.C.","affiliations":[],"preferred":false,"id":407375,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Crowley, J.K.","contributorId":103690,"corporation":false,"usgs":true,"family":"Crowley","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":407376,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70182820,"text":"70182820 - 2003 - Controls on intrusion of near-trench magmas of the Sanak-Baranof Belt, Alaska, during Paleogene ridge subduction, and consequences for forearc evolution","interactions":[],"lastModifiedDate":"2017-02-28T15:11:37","indexId":"70182820","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5198,"text":"Geological Society of America Special Papers ","active":true,"publicationSubtype":{"id":10}},"title":"Controls on intrusion of near-trench magmas of the Sanak-Baranof Belt, Alaska, during Paleogene ridge subduction, and consequences for forearc evolution","docAbstract":"

A belt of Paleogene near-trench plutons known as the Sanak-Baranof belt intruded the southern Alaska convergent margin. A compilation of isotopic ages of these plutons shows that they range in age from 61 Ma in the west to ca. 50 Ma in the east. This migrating pulse of magmatism along the continental margin is consistent with North Pacific plate reconstructions that suggests the plutons were generated by migration of a trench-ridge-trench triple junction along the margin. On the Kenai Peninsula the regional lower greenschist metamorphic grade of the turbiditic host rocks, texture of the plutons, contact-metamorphic assemblage, and isotopic and fluid inclusion studies suggest that the plutons were emplaced at pressures of 1.5–3.0 kbars (5.2–10.5 km) into a part of the accretionary wedge with an ambient temperature of 210–300 °C. The presence of kyanite, garnet, and cordierite megacrysts in the plutons indicates that the melts were generated at a depth greater than 20 km and minimum temperature of 650 °C. These megacrysts are probably xenocrystic remnants of a restitic or contact metamorphic phase entrained by the melt during intrusion. However, it is also possible that they are primary magmatic phases crystallized from the peraluminous melt.

Plutons of the Sanak-Baranof belt serve as time and strain markers separating kinematic regimes that predate and postdate ridge subduction. Pre-ridge subduction structures are interpreted to be related to the interaction between the leading oceanic plate and the Chugach terrane. These include regional thrust faults, NE-striking map-scale folds with associated axial planar foliation, type-1 mélanges, and an arrayof faults within the contact aureole indicating shortening largely accommodated by layer-parallel extension. Syn-ridge subduction features include the plutons, dikes, and ductile shear zones within contact aureoles with syn-kinematic metamorphic mineral growth and foliation development. Many of the studied plutons have sheeted margins and appear to have intruded along extensional jogs in margin-parallel strike-slip faults, whereas others form significant angles with the main faults and may have been influenced by minor faults of other orientations. Some of the plutons of the Sanak-Baranof belt have their long axes oriented parallel to faults of an orthorhombic fault set, implying that these faults may have provided a conduit for magma emplacement. This orthorhombic set of late faults is interpreted to have initially formed during the ridge subduction event, and continued to be active for a short time after passage of the triple junction. ENE-striking dextral faults of this orthorhombic fault system exhibit mutually crosscutting relationships with Eocene dikes related to ridge subduction, and mineralized strike-slip and normal faults of this system have yielded 40Ar/39Ar ages identical to near-trench intrusives related to ridge subduction. Movement on the orthorhombic fault system accommodated exhumation of deeper levels of the southern Alaska accretionary wedge, which is interpreted as a critical taper adjustment to subduction of younger oceanic lithosphere during ridge subduction. These faults therefore accommodate both deformation of the wedge and assisted emplacement of near-trench plutons. Structures that crosscut the plutons and aureoles include the orthorhombic fault set and dextral strike-slip faults, reflecting a new kinematic regime established after ridge subduction, during underthrusting of the trailing oceanic plate with new dextral-oblique convergence vectors with the overriding plate. The observation that the orthorhombic fault set both cuts and is cut by Eocene intrusives demonstrates the importance of these faults for magma emplacement in the forearc.

A younger, ca. 35 Ma suite of plutons intrudes the Chugach terrane in the Prince William Sound region, and their intrusion geometry was strongly influenced by pre-existing faults developed during ridge subduction. The generation of these plutons may be related to the sudden northward migration of the triple junction at ca. 40–33 Ma, as the ridge was being subducted nearly parallel to the trench during this interval. These younger plutons are used to provide additional constraints on the structural evolution of the wedge. Late- to post-ridge subduction fabrics include a pressure solution cleavage and additional movement on the orthorhombic fault system. After triple junction migration, subduction of the trailing oceanic plate involved a significant component of dextral transpression and northward translation of the Chugach terrane. This change in kinematics is recorded by very late gouge-filled dextral faults in the late structures of the accretionary prism.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-2371-X.269","usgsCitation":"Kusky, T.M., Bradley, D., Donely, D.T., Rowley, D., and Haeussler, P.J., 2003, Controls on intrusion of near-trench magmas of the Sanak-Baranof Belt, Alaska, during Paleogene ridge subduction, and consequences for forearc evolution: Geological Society of America Special Papers , v. 371, p. 269-292, https://doi.org/10.1130/0-8137-2371-X.269.","productDescription":"24 p.","startPage":"269","endPage":"292","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"links":[{"id":336367,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Gulf of Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -163,\n 53\n ],\n [\n -135,\n 53\n ],\n [\n -135,\n 61\n ],\n [\n -163,\n 61\n ],\n [\n -163,\n 53\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"371","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b69a43e4b01ccd54ff3fc4","contributors":{"authors":[{"text":"Kusky, Timothy M.","contributorId":11664,"corporation":false,"usgs":true,"family":"Kusky","given":"Timothy","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":673885,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bradley, Dwight 0000-0001-9116-5289 bradleyorchard2@gmail.com","orcid":"https://orcid.org/0000-0001-9116-5289","contributorId":2358,"corporation":false,"usgs":true,"family":"Bradley","given":"Dwight","email":"bradleyorchard2@gmail.com","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":673886,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Donely, D. Thomas","contributorId":184255,"corporation":false,"usgs":false,"family":"Donely","given":"D.","email":"","middleInitial":"Thomas","affiliations":[],"preferred":false,"id":673887,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rowley, David","contributorId":173099,"corporation":false,"usgs":false,"family":"Rowley","given":"David","email":"","affiliations":[{"id":12621,"text":"University of Chicago and University of South Florida","active":true,"usgs":false}],"preferred":false,"id":673888,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":673889,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":1015313,"text":"1015313 - 2003 - Beaver herbivory of willow under two flow regimes: A comparative study on the Green and Yampa rivers","interactions":[],"lastModifiedDate":"2017-12-27T19:34:06","indexId":"1015313","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3746,"text":"Western North American Naturalist","onlineIssn":"1944-8341","printIssn":"1527-0904","active":true,"publicationSubtype":{"id":10}},"title":"Beaver herbivory of willow under two flow regimes: A comparative study on the Green and Yampa rivers","docAbstract":"

The effect of flow regulation on plant-herbivore ecology has received very little attention, despite the fact that flow regulation can alter both plant and animal abundance and environmental factors that mediate interactions between them. To determine how regulated flows have impacted beaver (Castor canadensis) and sandbar willow (Salix exigua) ecology, we first quantified the abundance and mapped the spatial distribution of sandbar willow on alluvial sections of the flow-regulated Green River and free-flowing Yampa River in northwestern Colorado. We then established 16 and 15 plots (1 m × 2.7 m) in patches of willow on the Green and Yampa Rivers, respectively, to determine whether rates of beaver herbivory of willow differed between rivers (Green versus Yampa River), seasons (fall-winter versus spring-summer), and years (spring 1998-spring 1999 versus spring 1999-spring 2000). Areal extent of willow was similar on each river, but Green River willow patches were smaller and more numerous. Beavers cut more stems during fall and winter than spring and summer and cut over 6 times more stems (percentage basis) on the Green River than on the Yampa River. We attribute the between-river difference in herbivory to higher availability of willow, greater beaver density, and lower availability of young Fremont cottonwood (Populus deltoides subsp. wislizenii; an alternative food source) on the Green River. Flow regulation increased willow availability to beaver by promoting the formation of island patches that are continuously adjacent to water and feature a perimeter with a relatively high proportion of willow interfacing with water.

","language":"English","publisher":"Monte L. Bean Life Science Museum, Brigham Young University","usgsCitation":"Breck, S.W., Wilson, K.R., and Andersen, D., 2003, Beaver herbivory of willow under two flow regimes: A comparative study on the Green and Yampa rivers: Western North American Naturalist, v. 63, no. 4, p. 463-471.","productDescription":"9 p.","startPage":"463","endPage":"471","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":14830,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/41717320"},{"id":133110,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"63","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6be4b07f02db63dce2","contributors":{"authors":[{"text":"Breck, Stewart W.","contributorId":56927,"corporation":false,"usgs":true,"family":"Breck","given":"Stewart","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":322856,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Kenneth R.","contributorId":29255,"corporation":false,"usgs":true,"family":"Wilson","given":"Kenneth","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":322858,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Andersen, Douglas C. doug_andersen@usgs.gov","contributorId":2216,"corporation":false,"usgs":true,"family":"Andersen","given":"Douglas C.","email":"doug_andersen@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":false,"id":322857,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":93844,"text":"93844 - 2003 - Wolves: Behavior, ecology, and conservation","interactions":[{"subject":{"id":85398,"text":"85398 - 2003 - Wolf-prey relations","indexId":"85398","publicationYear":"2003","noYear":false,"chapter":"5","title":"Wolf-prey relations"},"predicate":"IS_PART_OF","object":{"id":93844,"text":"93844 - 2003 - Wolves: Behavior, ecology, and conservation","indexId":"93844","publicationYear":"2003","noYear":false,"title":"Wolves: Behavior, ecology, and conservation"},"id":1},{"subject":{"id":85399,"text":"85399 - 2003 - Conclusion","indexId":"85399","publicationYear":"2003","noYear":false,"chapter":"14","title":"Conclusion"},"predicate":"IS_PART_OF","object":{"id":93844,"text":"93844 - 2003 - Wolves: Behavior, ecology, and conservation","indexId":"93844","publicationYear":"2003","noYear":false,"title":"Wolves: Behavior, ecology, and conservation"},"id":2},{"subject":{"id":85404,"text":"85404 - 2003 - Wolf population dynamics","indexId":"85404","publicationYear":"2003","noYear":false,"chapter":"6","title":"Wolf population dynamics"},"predicate":"IS_PART_OF","object":{"id":93844,"text":"93844 - 2003 - Wolves: Behavior, ecology, and conservation","indexId":"93844","publicationYear":"2003","noYear":false,"title":"Wolves: Behavior, ecology, and conservation"},"id":3},{"subject":{"id":87253,"text":"87253 - 2003 - Wolf social ecology","indexId":"87253","publicationYear":"2003","noYear":false,"chapter":"1","title":"Wolf social ecology"},"predicate":"IS_PART_OF","object":{"id":93844,"text":"93844 - 2003 - Wolves: Behavior, ecology, and conservation","indexId":"93844","publicationYear":"2003","noYear":false,"title":"Wolves: Behavior, ecology, and conservation"},"id":4}],"lastModifiedDate":"2018-01-04T11:27:59","indexId":"93844","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":15,"text":"Monograph"},"title":"Wolves: Behavior, ecology, and conservation","docAbstract":"

Wolves are some of the world's most charismatic and controversial animals, capturing the imaginations of their friends and foes alike. Highly intelligent and adaptable, they hunt and play together in close-knit packs, sometimes roaming over hundreds of square miles in search of food. Once teetering on the brink of extinction across much of the United States and Europe, wolves have made a tremendous comeback in recent years, thanks to legal protection, changing human attitudes, and efforts to reintroduce them to suitable habitats in North America.

As wolf populations have rebounded, scientific studies of them have also flourished. But there hasn't been a systematic, comprehensive overview of wolf biology since 1970. In Wolves, many of the world's leading wolf experts provide state-of-the-art coverage of just about everything you could want to know about these fascinating creatures. Individual chapters cover wolf social ecology, behavior, communication, feeding habits and hunting techniques, population dynamics, physiology and pathology, molecular genetics, evolution and taxonomy, interactions with nonhuman animals such as bears and coyotes, reintroduction, interactions with humans, and conservation and recovery efforts. The book discusses both gray and red wolves in detail and includes information about wolves around the world, from the United States and Canada to Italy, Romania, Saudi Arabia, Israel, India, and Mongolia. Wolves is also extensively illustrated with black and white photos, line drawings, maps, and fifty color plates.

","language":"English","publisher":"University of Chicago Press","publisherLocation":"Chicago, IL","isbn":"9780226516974","usgsCitation":"2003, Wolves: Behavior, ecology, and conservation, xvii, 448 pp.","productDescription":"xvii, 448 pp.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":128214,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":292365,"type":{"id":15,"text":"Index Page"},"url":"https://press.uchicago.edu/ucp/books/book/chicago/W/bo3641392.html"}],"country":"Canada, India, Israel, Italy, Mongolia, Romania, Saudi Arabia, United States","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48cee4b07f02db5450fd","contributors":{"editors":[{"text":"Mech, L. David 0000-0003-3944-7769 david_mech@usgs.gov","orcid":"https://orcid.org/0000-0003-3944-7769","contributorId":2518,"corporation":false,"usgs":true,"family":"Mech","given":"L.","email":"david_mech@usgs.gov","middleInitial":"David","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":583812,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Boitani, Luigi","contributorId":32454,"corporation":false,"usgs":true,"family":"Boitani","given":"Luigi","affiliations":[],"preferred":false,"id":583813,"contributorType":{"id":2,"text":"Editors"},"rank":2}]}} ,{"id":70025737,"text":"70025737 - 2003 - Geographic analysis and monitoring at the United States Geological Survey","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025737","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1191,"text":"Cartography and Geographic Information Science","active":true,"publicationSubtype":{"id":10}},"title":"Geographic analysis and monitoring at the United States Geological Survey","docAbstract":"The Geographic Analysis and Monitoring (GAM) Program of the U.S. Geological Survey assesses the Nation's land surface at a variety of spatial and temporal scales to understand the rates, causes, and consequences of natural and human-induced processes and their interactions that affect the landscape over time. The program plays an important role in developing National Map tools and application. The GAM is a science and synthesis program that not only assesses the rates of changes to the Earth's land surface, but also provides reports on the status and trends of the Nation's land resources on a periodic basis, produces a land-use and land- cover database for the periodically updated map and data set-the Geographic Face of the Nation, and conducts research leading to improved understanding and knowledge about geographic processes. Scientific investigations provide comprehensive information needed to understand the environmental, resource, and economic consequences of landscape change. These analyses responds to the needs of resource managers and offers the American public baseline information to help them understand the dynamic nature of our national landscape and to anticipate the opportunities and consequences of our actions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Cartography and Geographic Information Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1559/152304003100011036","issn":"15230406","usgsCitation":"Findley, J., 2003, Geographic analysis and monitoring at the United States Geological Survey: Cartography and Geographic Information Science, v. 30, no. 2, p. 203-210, https://doi.org/10.1559/152304003100011036.","startPage":"203","endPage":"210","numberOfPages":"8","costCenters":[],"links":[{"id":208650,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1559/152304003100011036"},{"id":234533,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1759e4b0c8380cd55495","contributors":{"authors":[{"text":"Findley, J.","contributorId":35923,"corporation":false,"usgs":true,"family":"Findley","given":"J.","email":"","affiliations":[],"preferred":false,"id":406379,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70026020,"text":"70026020 - 2003 - Gravity and magnetic expression of the San Leandro gabbro with implications for the geometry and evolution of the Hayward Fault zone, northern California","interactions":[],"lastModifiedDate":"2021-07-19T16:17:12.456782","indexId":"70026020","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Gravity and magnetic expression of the San Leandro gabbro with implications for the geometry and evolution of the Hayward Fault zone, northern California","docAbstract":"The Hayward Fault, one of the most hazardous faults in northern California, trends north-northwest and extends for about 90 km along the eastern San Francisco Bay region. At numerous locations along its length, distinct and elongate gravity and magnetic anomalies correlate with mapped mafic and ultramafic rocks. The most prominent of these anomalies reflects the 16-km-long San Leandro gabbroic block. Inversion of magnetic and gravity data constrained with physical property measurements is used to define the subsurface extent of the San Leandro gabbro body and to speculate on its origin and relationship to the Hayward Fault Zone. Modeling indicates that the San Leandro gabbro body is about 3 km wide, dips about 75??-80?? northeast, and extends to a depth of at least 6 km. One of the most striking results of the modeling, which was performed independently of seismicity data, is that accurately relocated seismicity is concentrated along the western edge or stratigraphically lower bounding surface of the San Leandro gabbro. The western boundary of the San Leandro gabbro block is the base of an incomplete ophiolite sequence and represented at one time, a low-angle roof thrust related to the tectonic wedging of the Franciscan Complex. After repeated episodes of extension and attenuation, the roof thrust of this tectonic wedge was rotated to near vertical, and in places, the strike-slip Hayward Fault probably reactivated or preferentially followed this pre-existing feature. Because earthquakes concentrate near the edge of the San Leandro gabbro but tend to avoid its interior, we qualitatively explore mechanical models to explain how this massive igneous block may influence the distribution of stress. The microseismicity cluster along the western flank of the San Leandro gabbro leads us to suggest that this stressed volume may be the site of future moderate to large earthquakes. Improved understanding of the three-dimensional geometry and physical properties along the Hayward Fault will provide additional constraints on seismic hazard probability, earthquake modeling, and fault interactions that are applicable to other major strike-slip faults around the world.","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120020013","issn":"00371106","usgsCitation":"Ponce, D., Hildenbrand, T., and Jachens, R., 2003, Gravity and magnetic expression of the San Leandro gabbro with implications for the geometry and evolution of the Hayward Fault zone, northern California: Bulletin of the Seismological Society of America, v. 93, no. 1, p. 14-26, https://doi.org/10.1785/0120020013.","productDescription":"13 p.","startPage":"14","endPage":"26","costCenters":[],"links":[{"id":387243,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Hayward Fault zone, northern California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.200927734375,\n 39.095962936305476\n ],\n [\n -122.7447509765625,\n 39.2492708462234\n ],\n [\n -123.02490234375,\n 39.104488809440475\n ],\n [\n -122.3822021484375,\n 38.14751758025121\n ],\n [\n -122.1844482421875,\n 37.714244967649265\n ],\n [\n -121.497802734375,\n 36.954281585675965\n ],\n [\n -121.10229492187501,\n 36.677230602346214\n ],\n [\n -121.51977539062499,\n 37.99183365313853\n ],\n [\n -122.200927734375,\n 39.095962936305476\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"93","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2a05e4b0c8380cd5ae21","contributors":{"authors":[{"text":"Ponce, D. A. 0000-0003-4785-7354","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":104019,"corporation":false,"usgs":true,"family":"Ponce","given":"D. A.","affiliations":[],"preferred":false,"id":407543,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hildenbrand, T.G.","contributorId":83892,"corporation":false,"usgs":true,"family":"Hildenbrand","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":407542,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jachens, R.C.","contributorId":55433,"corporation":false,"usgs":true,"family":"Jachens","given":"R.C.","email":"","affiliations":[],"preferred":false,"id":407541,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":39942,"text":"wri024167 - 2002 - Hydrogeology, ground-water use, and ground-water levels in the Mill Creek Valley near Evendale, Ohio","interactions":[],"lastModifiedDate":"2019-04-17T08:19:42","indexId":"wri024167","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2002-4167","displayTitle":"Hydrogeology, Ground-Water Use, and Ground-Water Levels in the Mill Creek Valley Near Evendale, Ohio","title":"Hydrogeology, ground-water use, and ground-water levels in the Mill Creek Valley near Evendale, Ohio","docAbstract":"

Withdrawals of ground water in the central Mill Creek Valley near Evendale, Ohio, caused water-level declines of more than 100 feet by the 1950s. Since the 1950s, management practices have changed to reduce the withdrawals of ground water, and recovery of water levels in long-term monitoring wells in the valley has been documented. Changing conditions such as these prompted a survey of water use, streamflow conditions, and water levels in several aquifers in the central Mill Creek Valley, Hamilton and Butler Counties, Ohio. Geohydrologic information, water use, and water levels were compiled from historical records and collected during the regional survey. Data collected during the survey are presented in terms of updated geohydrologic information, water use in the study area, water levels in the aquifers, and interactions between ground water and surface water. Some of the data are concentrated at former Air Force Plant 36 (AFP36), which is collocated with the General Electric Aircraft Engines (GEAE) plant, and these data are used to describe geohydrology and water levels on a more local scale at and near the plant.

A comparison of past and current ground-water use and levels indicates that the demand for ground water is decreasing and water levels are rising. Before 1955, most of the major industrial ground-water users had their own wells, ground water was mined from a confined surficial (lower) aquifer, and water levels were more than 100 feet below their predevelopment level. Since 1955, however, these users have been purchasing their water from the city of Cincinnati or a private water purveyor. The cities of Reading and Lockland, both producers of municipal ground-water supplies in the area, shut down their well fields within their city limits. Because the demand for ground-water supplies in the valley has lessened greatly since the 1950s, withdrawals have decreased, and, consequently, water levels in the lower aquifer are 65 to 105 feet higher than they were in 1955.

During the time of the water-level survey (November 2000), ground water was being pumped from four locations in the lower aquifer, including three municipalities and one remediation site. Effects of pumping in those four areas were evident from the regional water-level data. Overall, the direction of ground-water flow in the lower aquifer is from northeast to southwest along the primary orientation of the Mill Creek Valley in the study area.

Water levels in shallower surficial aquifers were mapped at local scales centered on GEAE. Examination of well logs indicated that these aquifers (called shallow and water-table) are discontinuous and, on a regional scale, few wells were completed in these aquifers. Water levels in the shallow aquifer indicated that flow was from northeast to southwest except in areas where pumping in the lower aquifer or the proximity of Mill Creek may have been affecting water levels in the shallow aquifer. Water levels in the water-table aquifer indicated flow toward Mill Creek from GEAE.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri024167","collaboration":"Prepared in cooperation with the U.S. Air Force Aeronautical Systems Center","usgsCitation":"Schalk, C., and Schumann, T., 2002, Hydrogeology, ground-water use, and ground-water levels in the Mill Creek Valley near Evendale, Ohio: U.S. Geological Survey Water-Resources Investigations Report 2002-4167, 33 p., https://doi.org/10.3133/wri024167.","productDescription":"33 p.","costCenters":[],"links":[{"id":165037,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/2002/4167/coverthb.jpg"},{"id":3640,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2002/4167/wri20024167.pdf","text":"Report","size":"2.50 MB","linkFileType":{"id":1,"text":"pdf"},"description":"WRIR 2002-4167"}],"contact":"

Director, Ohio Water Science Center
U.S. Geological Survey
6460 Busch Blvd.
Columbus, OH 43229

","tableOfContents":"","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad6e4b07f02db684336","contributors":{"authors":[{"text":"Schalk, Charles","contributorId":85643,"corporation":false,"usgs":true,"family":"Schalk","given":"Charles","affiliations":[],"preferred":false,"id":222658,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schumann, Thomas","contributorId":85644,"corporation":false,"usgs":true,"family":"Schumann","given":"Thomas","affiliations":[],"preferred":false,"id":222659,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":44668,"text":"pp1658 - 2002 - Crustal structure of the coastal and marine San Francisco Bay region, California","interactions":[],"lastModifiedDate":"2023-09-26T20:23:41.314696","indexId":"pp1658","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1658","title":"Crustal structure of the coastal and marine San Francisco Bay region, California","docAbstract":"

As of the time of this writing, the San Francisco Bay region is home to about 6.8 million people, ranking fifth among population centers in the United States. Most of these people live on the coastal lands along San Francisco Bay, the Sacramento River delta, and the Pacific coast. The region straddles the tectonic boundary between the Pacific and North American Plates and is crossed by several strands of the San Andreas Fault system. These faults, which are stressed by about 4 cm of relative plate motion each year, pose an obvious seismic hazard.

We have many ways to study earthquake faults. Where faults break the land surface, we may learn valuable information needed for hazard assessment, such as cumulative offset, slip rate, and earthquake history. However, many of the major faults in the region are partly submerged beneath San Francisco and Monterey Bays. Although this situation poses problems in gathering observational data for hazard assessment, bay-region waterways provide an opportunity to study faultzone structure by using marine subsurface-imaging techniques, which are easier and cheaper than equivalent studies on land. In 1993, the U.S. Geological Survey (USGS) launched a 5-year project aimed at unearthing the basic science of the submerged San Andreas strike-slip fault system in the San Francisco Bay region with its many interacting strands. Primary project goals were structural, such as to discover how the San Andreas and Hayward Faults are connected or related at depth, to learn how the complex of faults in the San Andreas stepover zone on the Golden Gate platform functions, and to locate previously unknown faults. This volume thus contains mostly structural information about the San Francisco Bay region, much of it gathered through exploratory geophysical experiments.

The volume is organized “top down,” from studies in the shallowest crust to the base of the crust. The first three chapters are linked through their use of novel geophysical techniques to study earthquake effects, coseismic slip, and shallow stratigraphy. Kayen and others examine crustal structure at very high resolution and demonstrate the use of ground-penetrating-radar tomography to measure the liquefaction potential of coastal sedimentary deposits. McGann and others use microfossils from drill cores along the San Francisco-Oakland Bay Bridge to determine a more detailed late Pleistocene stratigraphy of San Francisco Bay than was previously available. Geist and Zoback use the historical record of a small local tsunami generated by the great 1906 San Francisco earthquake to model the rupture process of that earthquake.

The last four chapters are dedicated to studies of fault related structure of the seismogenic crust in and around the San Andreas Fault system in the San Francisco Bay region. Jachens and others compile an aeromagnetic anomaly map from new high-resolution flights across the bay region. Some of these anomalies mark the positions of offshore faults, and others are offset by faults, providing constraints on cumulative slip. Hart and others concisely summarize the marine seismic data recorded in and around San Francisco Bay, map the coverage, and provide archival information for those interested in acquiring data.

The last two chapters present the results of the seismic data that have been analyzed. Bruns and others present their analysis of high-quality intermediate-resolution (~5-km penetration) seismic-reflection data gathered over the complex San Andreas-San Gregorio Fault junction. This junction, which is thought to be where the 1906 San Francisco earthquake originated (see Geist and Zoback, this volume), contains an apparent extensional right stepover in the San Andreas Fault. Finally, Parsons and others review and summarize the results of deep-crustal seismic-reflection experiments and local-earthquake tomographic studies, including previously unpublished data, and provide additional support and discussion for already-published studies.

In summary, these studies were carried out in an environment where background information on faults in the San Francisco Bay region was sought. Much of the structural information presented here comes from experiments of a style unlikely to be conducted by the USGS in the near future. Together, the chapters in this volume provide a structural framework for a major part of a complex strike-slip fault system.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/pp1658","usgsCitation":"2002, Crustal structure of the coastal and marine San Francisco Bay region, California: U.S. Geological Survey Professional Paper 1658, Report: iii, 145 p.; 2 Plates: 36.00 x 60.00 inches, https://doi.org/10.3133/pp1658.","productDescription":"Report: iii, 145 p.; 2 Plates: 36.00 x 60.00 inches","numberOfPages":"149","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":285114,"rank":9,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pdf/ch8.pdf","text":"Chapter 8","linkFileType":{"id":1,"text":"pdf"}},{"id":81969,"rank":13,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1658/pdf/plate2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":81968,"rank":12,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1658/pdf/plate1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":81970,"rank":11,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1658/pdf/pp1658.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":3766,"rank":10,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/1658/","linkFileType":{"id":5,"text":"html"}},{"id":421211,"rank":14,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_52283.htm","linkFileType":{"id":5,"text":"html"}},{"id":110442,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pp1658.txt","text":"Introduction","linkFileType":{"id":5,"text":"html"},"description":"58863"},{"id":285109,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pdf/ch3.pdf","text":"Chapter 3","linkFileType":{"id":1,"text":"pdf"}},{"id":285108,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pdf/ch2.pdf","text":"Chapter 2","linkFileType":{"id":1,"text":"pdf"}},{"id":285113,"rank":8,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pdf/ch7.pdf","text":"Chapter 7","linkFileType":{"id":1,"text":"pdf"}},{"id":285112,"rank":7,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pdf/ch6.pdf","text":"Chapter 6","linkFileType":{"id":1,"text":"pdf"}},{"id":285111,"rank":6,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pdf/ch5.pdf","text":"Chapter 5","linkFileType":{"id":1,"text":"pdf"}},{"id":285110,"rank":5,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1658/pdf/ch4.pdf","text":"Chapter 4","linkFileType":{"id":1,"text":"pdf"}},{"id":126489,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1658/report-thumb.jpg"}],"scale":"150000","projection":"Transverse Mercator projection","datum":"North American Datum of 1927","country":"United States","state":"California","otherGeospatial":"San Francisco Bay Region","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.75,37.25 ], [ -122.75,38.25 ], [ -122.0,38.25 ], [ -122.0,37.25 ], [ -122.75,37.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acee4b07f02db67f420","contributors":{"editors":[{"text":"Parsons, Thomas E. 0000-0002-0582-4338 tparsons@usgs.gov","orcid":"https://orcid.org/0000-0002-0582-4338","contributorId":2314,"corporation":false,"usgs":true,"family":"Parsons","given":"Thomas","email":"tparsons@usgs.gov","middleInitial":"E.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":749309,"contributorType":{"id":2,"text":"Editors"},"rank":1}]}} ,{"id":44570,"text":"wri20024244 - 2002 - Stream-aquifer relations and the potentiometric surface of the Upper Floridan aquifer in the lower Apalachicola-Chattahoochee-Flint River basin in parts of Georgia, Florida, and Alabama, 1999-2000","interactions":[],"lastModifiedDate":"2022-12-05T21:07:13.763414","indexId":"wri20024244","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2002-4244","title":"Stream-aquifer relations and the potentiometric surface of the Upper Floridan aquifer in the lower Apalachicola-Chattahoochee-Flint River basin in parts of Georgia, Florida, and Alabama, 1999-2000","docAbstract":"

The Upper Floridan aquifer is the principal source of water for domestic and agricultural use in the lower Apalachicola-Chattahoochee-Flint (ACF) River Basin. Recent drought and increased water use have made understanding surface- and ground-water relations a priority for water-resource managers in the region. From July 1999 through August 2000, less than normal precipitation reduced streamflow in the area to less than 12 percent of average mean-daily streamflow and ground-water levels reached record or near-record lows. Effects of drought on stream-aquifer interactions in the basin were evaluated using baseflow estimation, ground-water seepage calculations, and potentiometric-surface maps. Ground-water discharge to streams, or baseflow, was estimated using three methods: field measurements, hydrograph separation, and linear regression analysis. Results were evaluated seasonally -- October 1999, April 2000, and August 2000 -- and for the period of record at four surface-water stations located on Kinchafoonee, Spring, Muckalee, and Turkey Creeks. Estimates of baseflow also were compared annually; ground-water discharge during the drought years, 1999 - 2000, was compared with ground-water discharge during a relatively wet year, 1994. Hydrograph separation indicated decreased base-flow of streams as the water level in the Upper Floridan aquifer declined. Mean-annual baseflow for Kinchafoonee, Spring, Muckalee, and Turkey Creeks ranged from 36 to 71 percent of total streamflow during the period of record. In 1994 baseflow accounted for only 37 to 56 percent of total streamflow, in 1999 baseflow comprised from 60 to 73 percent of total streamflow, and in 2000 baseflow comprised from 56 to 76 percent of streamflow. The percentage of total streamflow attributed to ground water increased during the drought, whereas other components of streamflow decreased (overland flow, interflow, and channel precipitation). Even though relative ground-water contributions were increased, the volume of water discharged from the aquifer to streams decreased during the drought as the Upper Floridan aquifer water level declined. Unit-area mean-annual ground-water discharge ranged from 0.60 to 0.79 cubic foot per second per square mile ([ft3/s]/mi2) in 1994, from 0.24 to 0.58 (ft3/s)/mi2 in 1999, and from 0.13 to 0.33 (ft3/s)/mi2 in 2000. Ground-water contributions to streamflow are high in winter, when evaporative demands are low, and low in summer, when evaporative demands are high. Linear regression analysis of stream-aquifer relations in the lower ACF River Basin shows 85- or 90-percent flow durations as reasonable estimates of baseflow.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri20024244","usgsCitation":"Mosner, M.S., 2002, Stream-aquifer relations and the potentiometric surface of the Upper Floridan aquifer in the lower Apalachicola-Chattahoochee-Flint River basin in parts of Georgia, Florida, and Alabama, 1999-2000: U.S. Geological Survey Water-Resources Investigations Report 2002-4244, vi, 45 p., https://doi.org/10.3133/wri20024244.","productDescription":"vi, 45 p.","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":168436,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":410065,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_52806.htm","linkFileType":{"id":5,"text":"html"}},{"id":3692,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri02-4244/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alabama, Florida, Georgia","otherGeospatial":"Apalachicola-Chattahoochee-Flint River, Upper Floridan aquifer","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"properties\":{},\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-84.869384765625,29.878755346037977],[-84.9847412109375,29.673735421779128],[-85.2044677734375,29.73099249532227],[-85.4241943359375,30.012030680358613],[-85.49011230468749,30.552800413453546],[-85.49560546875,32.16166284018013],[-85.27587890625,33.5963189611327],[-84.72656249999999,34.17090836352573],[-83.924560546875,34.6241677899049],[-83.64990234375,34.89494244739732],[-83.34228515625,34.56990638085636],[-83.583984375,33.8521697014074],[-84.375,33.22030778968541],[-83.73779296875,31.96148355726853],[-84.05639648437499,30.911651004518244],[-84.5068359375,30.64736425824319],[-84.869384765625,29.878755346037977]]]}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a50be","contributors":{"authors":[{"text":"Mosner, Melinda S.","contributorId":97968,"corporation":false,"usgs":true,"family":"Mosner","given":"Melinda","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":230012,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":50522,"text":"ofr02352 - 2002 - Preliminary report on geophysical data in Yavapai County, Arizona","interactions":[],"lastModifiedDate":"2023-06-27T14:24:15.185096","indexId":"ofr02352","displayToPublicDate":"2002-11-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2002-352","title":"Preliminary report on geophysical data in Yavapai County, Arizona","docAbstract":"Recently acquired geophysical data provide information on the geologic framework and its effect of groundwater flow and on stream/aquifer interaction in Yavapai County, Arizona. High-resolution aeromagnetic data reflect diverse rock types at and below the topographic surface and have permitted a preliminary interpretation of faults and underlying rock types (in particular, volcanic) that will provide new insights on the geologic framework, critical input to future hydrologic investigations. Aeromagnetic data map the western end of the Bear Wallow Canyon fault into the sedimentary fill of Verde Valley. Regional gravity data indicate potentially significant accumulations of low-density basin fill in Big Chino, Verde, and Williamson Valleys. Electrical and seismic data were also collected and help evaluate the approximate depth and extent of recent alluvium overlying Tertiary and Paleozoic sediments. These data will be used to ascertain the potential contribution of shallow ground-water subflow that cannot be measured by gages or flow meters and whether stream flow in losing reaches is moving as subflow or is being lost to the subsurface. The geophysical data will help produce a more robust groundwater flow model of the region.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02352","usgsCitation":"Langenheim, V., Hoffmann, J., Blasch, K., DeWitt, E., and Wirt, L., 2002, Preliminary report on geophysical data in Yavapai County, Arizona: U.S. Geological Survey Open-File Report 2002-352, Report: PDF, 29 p.; Report: TXT, https://doi.org/10.3133/ofr02352.","productDescription":"Report: PDF, 29 p.; Report: TXT","numberOfPages":"30","additionalOnlineFiles":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":283851,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr02352.jpg"},{"id":86332,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2002/0352/pdf/of02-352.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":4334,"rank":3,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/0352/","linkFileType":{"id":5,"text":"html"}},{"id":283850,"rank":1,"type":{"id":2,"text":"Additional Report Piece"},"url":"https://pubs.usgs.gov/of/2002/0352/ofr02-352.txt","linkFileType":{"id":2,"text":"txt"}}],"country":"United States","state":"Arizona","county":"Yavapai County","otherGeospatial":"Bear Wallow Canyon, Big Chino Valley, Verde Valley, Williamson Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.9999,34.348 ], [ -112.9999,35.268 ], [ -111.5977,35.268 ], [ -111.5977,34.348 ], [ -112.9999,34.348 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66cba5","contributors":{"authors":[{"text":"Langenheim, V.E. 0000-0003-2170-5213","orcid":"https://orcid.org/0000-0003-2170-5213","contributorId":54956,"corporation":false,"usgs":true,"family":"Langenheim","given":"V.E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":241682,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hoffmann, J.P.","contributorId":76389,"corporation":false,"usgs":true,"family":"Hoffmann","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":241684,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blasch, K.W.","contributorId":29877,"corporation":false,"usgs":true,"family":"Blasch","given":"K.W.","affiliations":[],"preferred":false,"id":241681,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"DeWitt, Ed","contributorId":65081,"corporation":false,"usgs":true,"family":"DeWitt","given":"Ed","affiliations":[],"preferred":false,"id":241683,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wirt, Laurie","contributorId":13204,"corporation":false,"usgs":true,"family":"Wirt","given":"Laurie","affiliations":[],"preferred":false,"id":241680,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":39852,"text":"ds76 - 2002 - HAZPAC: An interactive map of Pacific Rim natural hazards, population, and infrastructure","interactions":[],"lastModifiedDate":"2022-12-14T21:08:43.043601","indexId":"ds76","displayToPublicDate":"2002-10-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"76","title":"HAZPAC: An interactive map of Pacific Rim natural hazards, population, and infrastructure","docAbstract":"This is an online version of a CD-ROM publication. The text files that describe using this publication make reference to software provided on the disc. For this online version the software can be downloaded for free from Adobe Systems and Environmental Systems Research Institute, Inc. (ESRI). \r\n\r\nWelcome to HAZPAC! HAZPAC is an interactive map about natural hazard risk in the Pacific Rim region. It is intended to communicate to a broad audience the ideas of 'Crowding the Rim,' which is an international, public-private partnership that fosters collaborative solutions for regional risks. HAZPAC, which stands for 'HAZards of the PACific,' uses Geographic Information System (GIS) technology to help people visualize the socioeconomic connections and shared hazard vulnerabilities among Pacific Rim countries, as well as to explore the general nature of risk. \r\n\r\nPlease refer to the 'INTRODUCTION TO HAZPAC' section of the readme file below to determine which HAZPAC project will be right for you. \r\n\r\nOnce you have decided which HAZPAC project is suitable for you, please refer to the 'GETTING STARTED' sections in the readme file for some basic information that will help you begin using HAZPAC. Also, we highly recommend that you follow the Tutorial exercises in the project-specific HAZPAC User Guides. The User Guides are PDF (Portable Document Format) files that must be read with Adobe Acrobat Reader (a free copy of Acrobat Reader is available using the link near the bottom of this page).","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ds76","usgsCitation":"Bemis, B.L., Goss, H.V., Yurkovich, E.S., Perron, T.J., and Howell, D.G., 2002, HAZPAC: An interactive map of Pacific Rim natural hazards, population, and infrastructure: U.S. Geological Survey Data Series 76, HTML Document, https://doi.org/10.3133/ds76.","productDescription":"HTML Document","costCenters":[],"links":[{"id":173613,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":410498,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_53753.htm","linkFileType":{"id":5,"text":"html"}},{"id":3566,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/dds/dds-76/","linkFileType":{"id":5,"text":"html"}}],"otherGeospatial":"Pacific Rim","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db649eba","contributors":{"authors":[{"text":"Bemis, B. L.","contributorId":29046,"corporation":false,"usgs":true,"family":"Bemis","given":"B.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":222427,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goss, H. V.","contributorId":26746,"corporation":false,"usgs":true,"family":"Goss","given":"H.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":222426,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yurkovich, E. S.","contributorId":17677,"corporation":false,"usgs":true,"family":"Yurkovich","given":"E.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":222425,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Perron, T. J.","contributorId":50207,"corporation":false,"usgs":true,"family":"Perron","given":"T.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":222428,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Howell, D. G.","contributorId":52546,"corporation":false,"usgs":true,"family":"Howell","given":"D.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":222429,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":44282,"text":"ofr0278 - 2002 - Abstracts of the annual Planetary Geologic Mappers Meeting, June 18-19, 2001, Albuquerque, New Mexico","interactions":[],"lastModifiedDate":"2018-10-22T19:19:27","indexId":"ofr0278","displayToPublicDate":"2002-06-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2002-78","title":"Abstracts of the annual Planetary Geologic Mappers Meeting, June 18-19, 2001, Albuquerque, New Mexico","docAbstract":"

The annual Planetary Geologic Mappers Meeting serves two purposes. In addition to giving mappers the opportunity to exchange ideas, experiences, victories, and problems with others, presentations are reviewed by the Geologic Mapping Subcommittee (GeMS) to provide input to the Planetary Geology and Geophysics Mapping Program review panel’s consideration of new proposals and progress reports that include mapping tasks. Funded mappers bring both oral presentation materials (slides or viewgraphs) and map products to post for review by GeMS and fellow mappers. Additionally, the annual meetings typically feature optional field trips offering earth analogs and parallels to planetary mapping problems.

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The 2001 Mappers Meeting, June 18-19, was convened by Tim Parker, Dave Senske, and Ken Tanaka and was hosted by Larry Crumpler and Jayne Aubele of the New Mexico Museum of Natural History and Science in Albuquerque, New Mexico. Oral presentations were given in the Museum’s Honeywell Auditorium, and maps were posted in the Sandia Room. In addition to active mappers, guests included local science teachers who had successfully competed for the right to attend and listen to the reports. It was a unique pleasure for mappers to have the opportunity to interact with and provide information to teachers responding so enthusiastically to the meeting presentation.

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On Sunday, June 17, Larry and Jayne conducted an optional pre-meeting field trip. The flanks of Rio Grande Rift, east and west of Albuquerque and Valles Caldera north of town presented tectonic, volcanic, and sedimentary examples of the Rift and adjoining areas analogous to observed features on Mars and Venus. The arid but volcanically and tectonically active environment of New Mexico’s rift valley enables focus on features that appear morphologically young and spectacular in satellite images and digital relief models. The theme of the trip was to see what, at orbiter resolution, \"obvious\" geologic features look like at lander (outcrop) scales. Trips to the top of the rift-flanking mountains (Sandia Peak, 10,600 ft) and the Valles Caldera, as well as various active spring deposits highlighted the day.

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After welcoming remarks from the host, Larry Crumpler, opening remarks by Tim Parker and Dave Senske and a report on mapping program status by Ken Tanaka, the mappers’ oral presentations began the morning of June 18, with a session on Venus Geologic Mapping. The afternoon continued with an exciting USGS Planetary GIS on the Web (PIGWAD) demonstration and ended with an open discussion of issues in planetary mapping. Posted maps of Venus quadrangles were viewed during the morning break.

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Tuesday’s Mars Geologic Mapping session began with a pep talk from Tim Parker encouraging mapping community input to the MER landing site selection committee and continued with Steve Saunders describing the potential contribution of Odyssey Mission data to the geologic mapping of Mars. A Mars map poster session was held during the morning break, and the meeting was adjourned mid-afternoon.

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After the mappers meeting on Tuesday, attendants were treated to a \"Field trip to Mars.\" The Institute of Meteoritics at the University of New Mexico houses an outstanding collection of meteorites, including those that have been identified as originating from Mars. The Institute tour featured examples of most of the different lithologies exhibited by martian meteorites identified to date, as well as some of the analytical tests (scanning electron microscope) they are conducting on specimens from ALH84001.

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Wednesday, June 20, featured an optional post-meeting field trip to see a travertine quarry and nearby sites of travertine deposition, the Very Large Array near Socorro, and other volcanic features within the Rio Grande Rift.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr0278","usgsCitation":"Tanaka, K.L., and Senske, D.A., 2002, Abstracts of the annual Planetary Geologic Mappers Meeting, June 18-19, 2001, Albuquerque, New Mexico: U.S. Geological Survey Open-File Report 2002-78, 27 p., https://doi.org/10.3133/ofr0278.","productDescription":"27 p.","numberOfPages":"27","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":173256,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr0278.jpg"},{"id":283406,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2002/0078/pdf/of02-078.pdf"},{"id":3707,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/0078/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"New Mexico","otherGeospatial":"Rio Grande Rift;Mars;Valles Caldera;Venus","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b13e4b07f02db6a38f1","contributors":{"editors":[{"text":"Parker, Thomas J. tparker@usgs.gov","contributorId":2908,"corporation":false,"usgs":true,"family":"Parker","given":"Thomas","email":"tparker@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":749308,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Tanaka, Kenneth L. ktanaka@usgs.gov","contributorId":610,"corporation":false,"usgs":true,"family":"Tanaka","given":"Kenneth","email":"ktanaka@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":229469,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Senske, David A.","contributorId":32975,"corporation":false,"usgs":true,"family":"Senske","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":229470,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1003461,"text":"1003461 - 2002 - Evaluation of spatial models to predict vulnerability of forest birds to brood parasitism by cowbirds","interactions":[],"lastModifiedDate":"2021-12-28T16:57:10.511853","indexId":"1003461","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of spatial models to predict vulnerability of forest birds to brood parasitism by cowbirds","docAbstract":"

We constructed alternative spatial models at two scales to predict Brown-headed Cowbird (Molothrus ater) parasitism rates from land cover maps. The local-scale models tested competing hypotheses about the relationship between cowbird parasitism and distance of host nests from a forest edge (forest-nonforest boundary). The landscape models tested competing hypotheses about how landscape features (e.g., forests, agricultural fields) interact to determine rates of cowbird parasitism. The models incorporate spatial neighborhoods with a radius of 2.5 km in their formulation, reflecting the scale of the majority of cowbird commuting activity. Field data on parasitism by cowbirds (parasitism rate and number of cowbird eggs per nest) were collected at 28 sites in the Driftless Area Ecoregion of Wisconsin, Minnesota, and Iowa and were compared to the predictions of the alternative models. At the local scale, there was a significant positive relationship between cowbird parasitism and mean distance of nest sites from the forest edge. At the landscape scale, the best fitting models were the forest-dependent and forest-fragmentation-dependent models, in which more heavily forested and less fragmented landscapes had higher parasitism rates. However, much of the explanatory power of these models results from the inclusion of the local-scale relationship in these models. We found lower rates of cowbird parasitism than did most Midwestern studies, and we identified landscape patterns of cowbird parasitism that are opposite to those reported in several other studies of Midwestern songbirds. We caution that cowbird parasitism patterns can be unpredictable, depending upon ecoregional location and the spatial extent, and that our models should be tested in other ecoregions before they are applied there. Our study confirms that cowbird biology has a strong spatial component, and that improved spatial models applied at multiple spatial scales will be required to predict the effects of landscape and forest management on cowbird parasitism of forest birds.

","language":"English","publisher":"Wiley","doi":"10.1890/1051-0761(2002)012[0412:EOSMTP]2.0.CO;2","usgsCitation":"Gustafson, E., Knutson, M.G., Niemi, G., and Friberg, M., 2002, Evaluation of spatial models to predict vulnerability of forest birds to brood parasitism by cowbirds: Ecological Applications, v. 12, no. 2, p. 412-426, https://doi.org/10.1890/1051-0761(2002)012[0412:EOSMTP]2.0.CO;2.","productDescription":"15 p.","startPage":"412","endPage":"426","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":134393,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Iowa, Minnesota, Wisconsin","otherGeospatial":"Driftless Area Ecoregion","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -93.7353515625,\n 42.35854391749705\n ],\n [\n -90.5712890625,\n 42.35854391749705\n ],\n [\n -90.5712890625,\n 45.336701909968134\n ],\n [\n -93.7353515625,\n 45.336701909968134\n ],\n [\n -93.7353515625,\n 42.35854391749705\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"12","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fab5b","contributors":{"authors":[{"text":"Gustafson, E.J.","contributorId":81465,"corporation":false,"usgs":true,"family":"Gustafson","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":313344,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Knutson, M. G.","contributorId":55375,"corporation":false,"usgs":false,"family":"Knutson","given":"M.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":313342,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Niemi, G.J.","contributorId":80234,"corporation":false,"usgs":true,"family":"Niemi","given":"G.J.","email":"","affiliations":[],"preferred":false,"id":313343,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Friberg, M.","contributorId":24751,"corporation":false,"usgs":true,"family":"Friberg","given":"M.","affiliations":[],"preferred":false,"id":313341,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70023906,"text":"70023906 - 2002 - Layered, massive and thin sediments on Mars: Possible Late Noachian to Late Amazonian tephra?","interactions":[],"lastModifiedDate":"2022-01-19T12:26:14.998915","indexId":"70023906","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1785,"text":"Geological Society Special Publication","active":true,"publicationSubtype":{"id":10}},"title":"Layered, massive and thin sediments on Mars: Possible Late Noachian to Late Amazonian tephra?","docAbstract":"Data from instruments on the currently orbiting Mars Global Surveyor (MGS) suggest that as an alternative interpretation to lacustrine deposits, widespread sediments on Mars may be tephra deposits of variable age, formed in part by volcano-ice interactions. The materials are often associated with outcrops of mapped geological units that have each been previously interpreted as volcanic ash deposits with identified, but unconfirmed possible volcanic vents. Spectral investigation indicates that although some outcrops are basaltic, many show moderate to high concentrations of andesite, a composition at which large explosive eruptions may be possible. In addition, many outcrops are in areas suspected to be water/ice rich. On Earth, magma and groundwater can react to create violent explosive eruptions. Observations from MGS support a pyroclastic mechanism of deposition and show some morphologies consistent with volcano-ice interactions, including subaqueous eruptions. Perhaps MGS data are finally producing more definitive evidence of the widespread tephra that were predicted to be likely in the reduced atmospheric pressure of Mars.","language":"English","publisher":"The Geological Society","doi":"10.1144/GSL.SP.2002.202.01.14","usgsCitation":"Chapman, M.G., 2002, Layered, massive and thin sediments on Mars: Possible Late Noachian to Late Amazonian tephra?: Geological Society Special Publication, no. 202, p. 273-293, https://doi.org/10.1144/GSL.SP.2002.202.01.14.","productDescription":"21 p.","startPage":"273","endPage":"293","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":231973,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"202","noUsgsAuthors":false,"publicationDate":"2003-02-03","publicationStatus":"PW","scienceBaseUri":"505a4593e4b0c8380cd67420","contributors":{"authors":[{"text":"Chapman, M. G.","contributorId":105737,"corporation":false,"usgs":true,"family":"Chapman","given":"M.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":399288,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70024447,"text":"70024447 - 2002 - Allocation of extracellular enzymatic activity in relation to litter composition, N deposition, and mass loss","interactions":[],"lastModifiedDate":"2012-03-12T17:20:17","indexId":"70024447","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1007,"text":"Biogeochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Allocation of extracellular enzymatic activity in relation to litter composition, N deposition, and mass loss","docAbstract":"Decomposition of plant material is a complex process that requires interaction among a diversity of microorganisms whose presence and activity is subject to regulation by a wide range of environmental factors. Analysis of extracellular enzyme activity (EEA) provides a way to relate the functional organization of microdecomposer communities to environmental variables. In this study, we examined EEA in relation to litter composition and nitrogen deposition. Mesh bags containing senescent leaves of Quercus borealis (red oak), Acer rubrum (red maple) and Cornus florida (flowering dogwood) were placed on forest floor plots in southeastern New York. One-third of the plots were sprayed monthly with distilled water. The other plots were sprayed monthly with NH4NO3 solution at dose rates equivalent to 2 or 8 g N m-2 y-1. Mass loss, litter composition, fungal mass, and the activities of eight enzymes were measured on 13 dates for each litter type. Dogwood was followed for one year, maple for two, oak for three, For each litter type and treatment, enzymatic turnover activities were calculated from regressions of LN (%mass remaining) vs. cumulative activity. The decomposition of dogwood litter was more efficient than that of maple and oak. Maple litter had the lowest fungal mass and required the most enzymatic work to decompose, even though its mass loss rate was twice that of oak. Across litter types, N amendment reduced apparent enzymatic efficiencies and shifted EEA away from N acquisition and toward P acquisition, and away from polyphenol oxidation and toward polysaccharide hydrolysis. The effect of these shifts on decomposition rate varied with litter composition: dogwood was stimulated, oak was inhibited and maple showed mixed effects. The results show that relatively small shifts in the activity of one or two critical enzymes can significantly alter decomposition rates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biogeochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1023/A:1016541114786","issn":"01682563","usgsCitation":"Sinsabaugh, R.L., Carreiro, M., and Repert, D., 2002, Allocation of extracellular enzymatic activity in relation to litter composition, N deposition, and mass loss: Biogeochemistry, v. 60, no. 1, p. 1-24, https://doi.org/10.1023/A:1016541114786.","startPage":"1","endPage":"24","numberOfPages":"24","costCenters":[],"links":[{"id":207047,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1016541114786"},{"id":231618,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e96de4b0c8380cd48295","contributors":{"authors":[{"text":"Sinsabaugh, R. L.","contributorId":30784,"corporation":false,"usgs":false,"family":"Sinsabaugh","given":"R.","email":"","middleInitial":"L.","affiliations":[{"id":7164,"text":"Department of Biology, University of New Mexico, Albuquerque, NM 87131 USA","active":true,"usgs":false}],"preferred":false,"id":401314,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carreiro, M.M.","contributorId":58049,"corporation":false,"usgs":true,"family":"Carreiro","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":401315,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Repert, D.A.","contributorId":78506,"corporation":false,"usgs":true,"family":"Repert","given":"D.A.","affiliations":[],"preferred":false,"id":401316,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70025001,"text":"70025001 - 2002 - Structural and tectonic setting of the Charleston, South Carolina, region: Evidence from the Tertiary stratigraphic record","interactions":[],"lastModifiedDate":"2022-01-14T16:42:42.004527","indexId":"70025001","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Structural and tectonic setting of the Charleston, South Carolina, region: Evidence from the Tertiary stratigraphic record","docAbstract":"Eleven upper Eocene through Pliocene stratigraphic units occur in the subsurface of the region surrounding Charleston, South Carolina. These units contain a wealth of information concerning the long-term tectonic and structural setting of that area. These stratigraphic units have a mosaic pattern of distribution, rather than a simple layered pattern, because deposition, erosion, and tectonic warping have interacted in a complex manner through time. By generating separate structure-contour maps for the base of each stratigraphic unit, an estimate of the original basal surface of each unit can be reconstructed over wide areas. Changes in sea level over geologic time generate patterns of deposition and erosion that are geographically unique for the time of each transgression. Such patterns fail to persist when compared sequentially over time. In some areas, however, there has been persistent, repetitive net downward of upward movement over the past 34 m.y. These repetitive patterns of persistent motion are most readily attributable to tectonism. The spatial pattern of these high and low areas is complex, but it appears to correlate well with known tectonic features of the region. This correlation suggests that the tectonic setting of the Charleston region is controlled by scissors-like compression on a crustal block located between the north-trending Adams Run fault and the northwest-trending Charleston fault. Tectonism is localized in the Charleston region because it lies within a discrete hinge zone that accommodates structural movement between the Cape Fear arch and the Southeast Georgia embayment.","language":"English","publisher":"GeoScienceWorld","doi":"10.1130/0016-7606(2002)114<0024:SATSOT>2.0.CO;2","usgsCitation":"Weems, R., and Lewis, W., 2002, Structural and tectonic setting of the Charleston, South Carolina, region: Evidence from the Tertiary stratigraphic record: Geological Society of America Bulletin, v. 114, no. 1, p. 24-42, https://doi.org/10.1130/0016-7606(2002)114<0024:SATSOT>2.0.CO;2.","productDescription":"19 p.","startPage":"24","endPage":"42","costCenters":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":233009,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"South Carolina","city":"Charleston","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.013427734375,\n 32.713355353177555\n ],\n [\n -79.837646484375,\n 32.713355353177555\n ],\n [\n -79.837646484375,\n 32.856518010109546\n ],\n [\n -80.013427734375,\n 32.856518010109546\n ],\n [\n -80.013427734375,\n 32.713355353177555\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"114","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9bcce4b08c986b31d0c7","contributors":{"authors":[{"text":"Weems, R.E.","contributorId":44920,"corporation":false,"usgs":true,"family":"Weems","given":"R.E.","affiliations":[],"preferred":false,"id":403400,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lewis, W.C.","contributorId":67124,"corporation":false,"usgs":true,"family":"Lewis","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":403401,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70025114,"text":"70025114 - 2002 - Advances in directional borehole radar data analysis and visualization","interactions":[],"lastModifiedDate":"2012-03-12T17:20:27","indexId":"70025114","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Advances in directional borehole radar data analysis and visualization","docAbstract":"The U.S. Geological Survey is developing a directional borehole radar (DBOR) tool for mapping fractures, lithologic changes, and underground utility and void detection. An important part of the development of the DBOR tool is data analysis and visualization, with the aim of making the software graphical user interface (GUI) intuitive and easy to use. The DBOR software system consists of a suite of signal and image processing routines written in Research Systems' Interactive Data Language (IDL). The software also serves as a front-end to many widely accepted Colorado School of Mines Center for Wave Phenomena (CWP) Seismic UNIX (SU) algorithms (Cohen and Stockwell, 2001). Although the SU collection runs natively in a UNIX environment, our system seamlessly emulates a UNIX session within a widely used PC operating system (MicroSoft Windows) using GNU tools (Noer, 1998). Examples are presented of laboratory data acquired with the prototype tool from two different experimental settings. The first experiment imaged plastic pipes in a macro-scale sand tank. The second experiment monitored the progress of an invasion front resulting from oil injection. Finally, challenges to further development and planned future work are discussed.","largerWorkTitle":"Proceedings of SPIE - The International Society for Optical Engineering","conferenceTitle":"9th International Conference on Ground Penetrating Radar","conferenceDate":"29 April 2002 through 2 May 2002","conferenceLocation":"Santa Barbara, CA","language":"English","doi":"10.1117/12.462230","issn":"0277786X","usgsCitation":"Smith, D., and Brown, P., 2002, Advances in directional borehole radar data analysis and visualization, in Proceedings of SPIE - The International Society for Optical Engineering, v. 4758, Santa Barbara, CA, 29 April 2002 through 2 May 2002, p. 251-255, https://doi.org/10.1117/12.462230.","startPage":"251","endPage":"255","numberOfPages":"5","costCenters":[],"links":[{"id":209370,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1117/12.462230"},{"id":235721,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4758","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e703e4b0c8380cd477c8","contributors":{"authors":[{"text":"Smith, D.V.G.","contributorId":57249,"corporation":false,"usgs":true,"family":"Smith","given":"D.V.G.","email":"","affiliations":[],"preferred":false,"id":403877,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, P.J. II 0000-0002-2415-7462","orcid":"https://orcid.org/0000-0002-2415-7462","contributorId":83723,"corporation":false,"usgs":true,"family":"Brown","given":"P.J.","suffix":"II","affiliations":[],"preferred":false,"id":403878,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}