{"pageNumber":"1430","pageRowStart":"35725","pageSize":"25","recordCount":46730,"records":[{"id":70016767,"text":"70016767 - 1991 - Use of sediment-trace element geochemical models for the identification of local fluvial baseline concentrations","interactions":[],"lastModifiedDate":"2012-03-12T17:18:50","indexId":"70016767","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Use of sediment-trace element geochemical models for the identification of local fluvial baseline concentrations","docAbstract":"Studies have demonstrated the utility of fluvial bed sediment chemical data in assesing local water-quality conditions. However, establishing local background trace element levels can be difficult. Reference to published average concentrations or the use of dated cores are often of little use in small areas of diverse local petrology, geology, land use, or hydrology. An alternative approach entails the construction of a series of sediment-trace element predictive models based on data from environmentally diverse but unaffected areas. Predicted values could provide a measure of local background concentrations and comparison with actual measured concentrations could identify elevated trace elements and affected sites. Such a model set was developed from surface bed sediments collected nationwide in the United States. Tests of the models in a small Louisiana basin indicated that they could be used to establish local trace element background levels, but required recalibration to account for local geochemical conditions outside the range of samples used to generate the nationwide models.","largerWorkTitle":"IAHS Publication (International Association of Hydrological Sciences)","conferenceTitle":"20th General Assembly of the International Union of Geodesy and Geophysics","conferenceDate":"11 August 1991 through 24 August 1991","conferenceLocation":"Vienna, Austria","language":"English","publisher":"Publ by IAHS","publisherLocation":"Wallingford, United Kingdom","isbn":"0947571086","usgsCitation":"Horowitz, A.J., Elrick, K.A., Demas, C.R., and Demcheck, D., 1991, Use of sediment-trace element geochemical models for the identification of local fluvial baseline concentrations, in IAHS Publication (International Association of Hydrological Sciences), no. 203, Vienna, Austria, 11 August 1991 through 24 August 1991, p. 339-348.","startPage":"339","endPage":"348","numberOfPages":"10","costCenters":[],"links":[{"id":224896,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"203","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbf74e4b08c986b329b86","contributors":{"authors":[{"text":"Horowitz, A. J.","contributorId":102066,"corporation":false,"usgs":true,"family":"Horowitz","given":"A.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":374442,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elrick, K. A.","contributorId":98731,"corporation":false,"usgs":true,"family":"Elrick","given":"K.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":374441,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Demas, C. R.","contributorId":77178,"corporation":false,"usgs":true,"family":"Demas","given":"C.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":374439,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Demcheck, D.K.","contributorId":87968,"corporation":false,"usgs":true,"family":"Demcheck","given":"D.K.","affiliations":[],"preferred":false,"id":374440,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70016812,"text":"70016812 - 1991 - Aerial videotape mapping of coastal geomorphic changes","interactions":[],"lastModifiedDate":"2012-03-12T17:18:51","indexId":"70016812","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Aerial videotape mapping of coastal geomorphic changes","docAbstract":"An aerial geomorphic mapping system was developed to examine the spatial and temporal variability in the coastal geomorphology of Louisiana. Between 1984 and 1990 eleven sequential annual and post-hurricane aerial videotape surveys were flown covering periods of prolonged fair weather, hurricane impacts and subsequent post-storm recoveries. A coastal geomorphic classification system was developed to map the spatial and temporal geomorphic changes between these surveys. The classification system is based on 10 years of shoreline monitoring, analysis of aerial photography for 1940-1989, and numerous field surveys. The classification system divides shorelines into two broad classes: natural and altered. Each class consists of several genetically linked categories of shorelines. Each category is further subdivided into morphologic types on the basis of landform relief, elevation, habitat type, vegetation density and type, and sediment characteristics. The classification is used with imagery from the low-altitude, high-resolution aerial videotape surveys to describe and quantify the longshore and cross-shore geomorphic, sedimentologic, and vegetative character of Louisiana's shoreline systems. The mapping system makes it possible to delineate and map detailed geomorphic habitat changes at a resolution higher than that of conventional vertical aerial photography. Morphologic units are mapped parallel to the regional shoreline from the aerial videotape imagery onto the base maps at a scale of 1:24,000. The base maps were constructed from vertical aerial photography concurrent with the data of the video imagery.","largerWorkTitle":"Coastal Zone: Proceedings of the Symposium on Coastal and Ocean Management","conferenceTitle":"Proceedings of the 7th Symposium on Coastal and Ocean Management Part 4 (of 4)","conferenceDate":"8 July 1991 through 12 July 1991","conferenceLocation":"Long Beach, CA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872628094","usgsCitation":"Debusschere, K., Penland, S., Westphal, K.A., Reimer, P.D., and McBride, R.A., 1991, Aerial videotape mapping of coastal geomorphic changes, in Coastal Zone: Proceedings of the Symposium on Coastal and Ocean Management, v. 1, Long Beach, CA, USA, 8 July 1991 through 12 July 1991, p. 370-390.","startPage":"370","endPage":"390","numberOfPages":"21","costCenters":[],"links":[{"id":224753,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e71de4b0c8380cd47860","contributors":{"authors":[{"text":"Debusschere, Karolien","contributorId":73344,"corporation":false,"usgs":true,"family":"Debusschere","given":"Karolien","email":"","affiliations":[],"preferred":false,"id":374564,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Penland, Shea","contributorId":88401,"corporation":false,"usgs":false,"family":"Penland","given":"Shea","email":"","affiliations":[{"id":5115,"text":"Louisiana State University","active":true,"usgs":false}],"preferred":false,"id":374565,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Westphal, Karen A.","contributorId":92435,"corporation":false,"usgs":true,"family":"Westphal","given":"Karen","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":374566,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reimer, P. Douglas","contributorId":53533,"corporation":false,"usgs":true,"family":"Reimer","given":"P.","email":"","middleInitial":"Douglas","affiliations":[],"preferred":false,"id":374563,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McBride, Randolph A.","contributorId":6466,"corporation":false,"usgs":true,"family":"McBride","given":"Randolph","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":374562,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70014943,"text":"70014943 - 1991 - Use of longitudinal strain in identifying driving and resisting elements of landslides","interactions":[],"lastModifiedDate":"2023-12-27T12:07:46.994618","indexId":"70014943","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","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":"Use of longitudinal strain in identifying driving and resisting elements of landslides","docAbstract":"

Observations of deformation at the surfaces of landslides in Utah and Hawaii indicate that the upslope parts of the land-slides have stretched and the downslope parts have shortened parallel with the direction of movement. The maximum displacement of each landslide occurs in a relatively undeformed zone between the zones of shortening and stretching. The pattern of deformation at the surface of these landslides may be useful in analyzing their mechanics by helping to constrain the longitudinal forces in limit-equilibrium stability analysis. We used earth-pressure calculations to determine the range of possible longitudinal forces (per unit width) for active failure in the zone of stretching and for passive failure in the zone of shortening of one of the Hawaiian landslides. Longitudinal forces computed by stability analysis, assuming homogeneous strength, exceeded the possible forces in much of the upslope half of the landslide. Consequently, we assumed inhomogeneous strength and adjusted shear-strength parameters at each segment of the slip surface until the longitudinal forces computed by stability analysis agreed with those computed by earth-pressure theory, and the factor of safety approached unity. The distribution of longitudinal forces computed for inhomogeneous strength indicated that the boundary between driving and resisting elements of the landslide is near the thickest part of the slide, in agreement with a simple formula for the location of the boundary.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1991)103<1121:UOLSII>2.3.CO;2","usgsCitation":"Baum, R., and Fleming, R.W., 1991, Use of longitudinal strain in identifying driving and resisting elements of landslides: Geological Society of America Bulletin, v. 103, no. 8, p. 1121-1152, https://doi.org/10.1130/0016-7606(1991)103<1121:UOLSII>2.3.CO;2.","productDescription":"32 p.","startPage":"1121","endPage":"1152","numberOfPages":"32","costCenters":[],"links":[{"id":224282,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"103","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbf3ae4b08c986b329a2d","contributors":{"authors":[{"text":"Baum, R.L.","contributorId":68752,"corporation":false,"usgs":true,"family":"Baum","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":369668,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fleming, R. W.","contributorId":89110,"corporation":false,"usgs":true,"family":"Fleming","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":369669,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016600,"text":"70016600 - 1991 - Jasper Seamount: Seven million years of volcanism","interactions":[],"lastModifiedDate":"2024-01-24T01:12:01.153452","indexId":"70016600","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Jasper Seamount: Seven million years of volcanism","docAbstract":"

Jasper Seamount is a young, mid-sized (690 km3) oceanic intraplate volcano located about 500 km west-southwest of San Diego, California. Reliable 40Ar/39Ar age data were obtained for several milligram-sized samples of 4 to 10 Ma plagioclase by using a defocused laser beam to clean the samples before fusion. Gee and Staudigel suggested that Jasper Seamount consists of a transitional to tholeiitic shield volcano formed by flank transitional series lavas, overlain by flank alkalic series lavas and summit alkalic series lavas. Twenty-nine individual 40Ar/39Ar laser fusion analyses on nine samples confirm the stratigraphy:10.3-10.0 Ma for the flank transitional series, 8.7-7.5 Ma for the flank alkalic series, and 4.8-4.1 Ma for the summit alkalic series. The alkalinity of the lavas clearly increases with time, and there appear to be 1 to 3 m.y. hiatuses between each series. The age data are consistent with the complex magnetic anomaly of Jasper; however, the dominant reversed polarity inferred from the anomaly suggests that most of the seamount formed at ca. 11 Ma, prior to the onset of Chron C5N. The duration of volcanism of Jasper Seamount is slightly longer than the duration of volcanism at Hawaiian volcanoes, suggesting that individual age data from seamounts may constrain the age of a seamount only to within about 7 m.y. unless the stage of volcanism can be unambiguously determined. Extrapolating from the results of our study, similar precision in age determinations should be possible on 50 mg of 1 Ma plagioclase from mid-ocean ridge basalt, opening new possibilities in the geochronology of young, low-potassium volcanic rocks.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1991)019<0364:JSSMYO>2.3.CO;2","issn":"00917613","usgsCitation":"Pringle, M.S., Staudigel, H., and Gee, J., 1991, Jasper Seamount: Seven million years of volcanism: Geology, v. 19, no. 4, p. 364-368, https://doi.org/10.1130/0091-7613(1991)019<0364:JSSMYO>2.3.CO;2.","productDescription":"5 p.","startPage":"364","endPage":"368","numberOfPages":"5","costCenters":[],"links":[{"id":222965,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3fe9e4b0c8380cd64904","contributors":{"authors":[{"text":"Pringle, M. S.","contributorId":107712,"corporation":false,"usgs":true,"family":"Pringle","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":374003,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Staudigel, H.","contributorId":65607,"corporation":false,"usgs":true,"family":"Staudigel","given":"H.","affiliations":[],"preferred":false,"id":374001,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gee, J.","contributorId":82849,"corporation":false,"usgs":true,"family":"Gee","given":"J.","email":"","affiliations":[],"preferred":false,"id":374002,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016609,"text":"70016609 - 1991 - Use of electronic microprocessor-based instrumentation by the U.S. geological survey for hydrologic data collection","interactions":[],"lastModifiedDate":"2012-03-12T17:18:49","indexId":"70016609","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Use of electronic microprocessor-based instrumentation by the U.S. geological survey for hydrologic data collection","docAbstract":"The U.S. Geological Survey is acquiring a new generation of field computers and communications software to support hydrologic data-collection at field locations. The new computer hardware and software mark the beginning of the Survey's transition from the use of electromechanical devices and paper tapes to electronic microprocessor-based instrumentation. Software is being developed for these microprocessors to facilitate the collection, conversion, and entry of data into the Survey's National Water Information System. The new automated data-collection process features several microprocessor-controlled sensors connected to a serial digital multidrop line operated by an electronic data recorder. Data are acquired from the sensors in response to instructions programmed into the data recorder by the user through small portable lap-top or hand-held computers. The portable computers, called personal field computers, also are used to extract data from the electronic recorders for transport by courier to the office computers. The Survey's alternative to manual or courier retrieval is the use of microprocessor-based remote telemetry stations. Plans have been developed to enhance the Survey's use of the Geostationary Operational Environmental Satellite telemetry by replacing the present network of direct-readout ground stations with less expensive units. Plans also provide for computer software that will support other forms of telemetry such as telephone or land-based radio.","largerWorkTitle":"Proceedings - National Conference on Hydraulic Engineering","conferenceTitle":"Proceedings of the 1991 National Conference on Hydraulic Engineering","conferenceDate":"29 July 1991 through 2 August 1991","conferenceLocation":"Nashville, TN, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872628167","usgsCitation":"Shope, W.G., 1991, Use of electronic microprocessor-based instrumentation by the U.S. geological survey for hydrologic data collection, in Proceedings - National Conference on Hydraulic Engineering, Nashville, TN, USA, 29 July 1991 through 2 August 1991, p. 774-779.","startPage":"774","endPage":"779","numberOfPages":"6","costCenters":[],"links":[{"id":224838,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbef6e4b08c986b3298af","contributors":{"editors":[{"text":"Shane Richard M.","contributorId":128320,"corporation":true,"usgs":false,"organization":"Shane Richard M.","id":536335,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Shope, William G. Jr.","contributorId":106649,"corporation":false,"usgs":true,"family":"Shope","given":"William","suffix":"Jr.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":374026,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70138470,"text":"70138470 - 1991 - Imaging the midcontinent rift beneath Lake Superior using large aperture seismic data","interactions":[],"lastModifiedDate":"2018-03-23T13:26:02","indexId":"70138470","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Imaging the midcontinent rift beneath Lake Superior using large aperture seismic data","docAbstract":"

We present a detailed velocity model across the 1.1 billion year old Midcontinent Rift System (MRS) in central Lake Superior. The model was derived primarily from onshore-offshore large-aperture seismic and gravity data. High velocities obtained within a highly reflective half-graben that was imaged on coincident seismic reflection data demonstrate the dominantly mafic composition of the graben fill and constrain its total thickness to be at least 30km. Strong wide-angle reflections are observed from the lower crust and Moho, indicating that the crust is thickest (55–60km) beneath the axis of the graben. The total crustal thickness decreases rapidly to about 40 km beneath the south shore of the lake and decreases more gradually to the north. Above the Moho is a high-velocity lower crust interpreted to result from syn-rift basaltic intrusion into and/or underplating beneath the Archean lower crust. The lower crust is thickest beneath the axis of the main rift half-graben. A second region of thick lower crust is found approximately 100km north of the axis of the rift beneath a smaller half graben that is interpreted to reflect an earlier stage of rifting. The crustal model presented here resembles recent models of some passive continental margins and is in marked contrast to many models of both active and extinct Phanerozoic continental rift zones. It demonstrates that the Moho is a dynamic feature, since the pre-rift Moho is probably within or above the high-velocity lower crust, whereas the post-rift Moho is defined as the base of this layer. In the absence of major tectonic activity, however, the Moho is very stable, since the large, abrupt variations in crustal thickness beneath the MRS have been preserved for at least a billion years.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/91GL00826","usgsCitation":"Trehu, A.M., Morel-a-l’Huissier, P., Meyer, R., Hajnal, Z., Karl, J., Mereu, R., Sexton, J.L., Shay, J., Chan, W.K., Epili, D., Jefferson, T., Shih, X.R., Wendling, S., Milkereit, B., Green, A., and Hutchinson, D.R., 1991, Imaging the midcontinent rift beneath Lake Superior using large aperture seismic data: Geophysical Research Letters, v. 18, no. 4, p. 625-628, https://doi.org/10.1029/91GL00826.","productDescription":"4 p.","startPage":"625","endPage":"628","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":297329,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","otherGeospatial":"Lake Superior","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -92.35107421874999,\n 47.635783590864854\n ],\n [\n -92.79052734375,\n 46.195042108660154\n ],\n [\n -88.30810546875,\n 46.22545288226939\n ],\n [\n -84.00146484374999,\n 46.33175800051563\n ],\n [\n -85.23193359375,\n 49.76707407366792\n ],\n [\n -89.20898437499999,\n 49.05227025601607\n ],\n [\n -92.35107421874999,\n 47.635783590864854\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"18","issue":"4","noUsgsAuthors":false,"publicationDate":"2012-12-07","publicationStatus":"PW","scienceBaseUri":"54dd2bcfe4b08de9379b34ea","contributors":{"authors":[{"text":"Trehu, Anne M.","contributorId":49884,"corporation":false,"usgs":false,"family":"Trehu","given":"Anne","email":"","middleInitial":"M.","affiliations":[{"id":6680,"text":"Oregon State University","active":true,"usgs":false}],"preferred":false,"id":538692,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morel-a-l’Huissier, Patrick","contributorId":104123,"corporation":false,"usgs":false,"family":"Morel-a-l’Huissier","given":"Patrick","email":"","affiliations":[{"id":13092,"text":"Geological Survey of Canada","active":true,"usgs":false}],"preferred":false,"id":538693,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, R.","contributorId":24829,"corporation":false,"usgs":false,"family":"Meyer","given":"R.","affiliations":[{"id":7122,"text":"University of Wisconsin","active":true,"usgs":false}],"preferred":false,"id":538694,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hajnal, Z.","contributorId":77684,"corporation":false,"usgs":false,"family":"Hajnal","given":"Z.","affiliations":[],"preferred":false,"id":538695,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Karl, J.","contributorId":60698,"corporation":false,"usgs":true,"family":"Karl","given":"J.","email":"","affiliations":[],"preferred":false,"id":538696,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mereu, R.F.","contributorId":15678,"corporation":false,"usgs":false,"family":"Mereu","given":"R.F.","affiliations":[{"id":7122,"text":"University of Wisconsin","active":true,"usgs":false}],"preferred":false,"id":538697,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sexton, John L.","contributorId":94363,"corporation":false,"usgs":false,"family":"Sexton","given":"John","email":"","middleInitial":"L.","affiliations":[{"id":13212,"text":"Southern Illinois University","active":true,"usgs":false}],"preferred":false,"id":538698,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Shay, J.","contributorId":138775,"corporation":false,"usgs":false,"family":"Shay","given":"J.","affiliations":[{"id":6680,"text":"Oregon State University","active":true,"usgs":false}],"preferred":false,"id":538699,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Chan, W. K.","contributorId":138776,"corporation":false,"usgs":false,"family":"Chan","given":"W.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":538700,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Epili, D.","contributorId":138777,"corporation":false,"usgs":false,"family":"Epili","given":"D.","email":"","affiliations":[{"id":7122,"text":"University of Wisconsin","active":true,"usgs":false}],"preferred":false,"id":538701,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Jefferson, T.","contributorId":138778,"corporation":false,"usgs":false,"family":"Jefferson","given":"T.","email":"","affiliations":[{"id":7122,"text":"University of Wisconsin","active":true,"usgs":false}],"preferred":false,"id":538702,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Shih, X. R.","contributorId":138779,"corporation":false,"usgs":false,"family":"Shih","given":"X.","email":"","middleInitial":"R.","affiliations":[{"id":7122,"text":"University of Wisconsin","active":true,"usgs":false}],"preferred":false,"id":538703,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Wendling, S.","contributorId":138780,"corporation":false,"usgs":false,"family":"Wendling","given":"S.","email":"","affiliations":[],"preferred":false,"id":538704,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Milkereit, Bernd","contributorId":62752,"corporation":false,"usgs":false,"family":"Milkereit","given":"Bernd","affiliations":[],"preferred":false,"id":538705,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Green, A.","contributorId":42333,"corporation":false,"usgs":true,"family":"Green","given":"A.","affiliations":[],"preferred":false,"id":538706,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Hutchinson, Deborah R. 0000-0002-2544-5466 dhutchinson@usgs.gov","orcid":"https://orcid.org/0000-0002-2544-5466","contributorId":521,"corporation":false,"usgs":true,"family":"Hutchinson","given":"Deborah","email":"dhutchinson@usgs.gov","middleInitial":"R.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":538707,"contributorType":{"id":1,"text":"Authors"},"rank":16}]}} ,{"id":70015077,"text":"70015077 - 1991 - Louisiana coastal GIS network: Graphical user interface for access to spatial data","interactions":[],"lastModifiedDate":"2017-09-06T14:48:50","indexId":"70015077","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Louisiana coastal GIS network: Graphical user interface for access to spatial data","docAbstract":"Louisiana's coastal wetlands support a large percentage of the nation's seafood and fur industries, vast deposits of oil and natural gas, habitat for thousands of species of plants and animals, winter nesting grounds and migratory paths for numerous waterfowl, and many recreational resources enjoyed by residents and tourists. Louisiana's wetlands also have the highest rates of coastal erosion and wetland loss in the nation. While numerous studies across many disciplines have been conducted on both local and regional scales, no complete inventory exists for this information. The Louisiana Coastal Geographic Information System Network (LCGISN) is currently being developed to facilitate access to existing data for coastal zone planners, managers, and researchers. The Louisiana Geological Survey (LGS), in cooperation with the LSU Department of Geography and Anthropology, the Computer Aided Design and Geographic Information Systems Research Laboratory (CADGIS), and others, is pursuing this project under the terms of a cooperative agreement with the U.S. Geological Survey. LCGISN is an automated system for searching and retrieving geographic, cartographic, and bibliographic data. By linking original programming with an existing GIS software package and an industry standard relational database management system, LCGISN will provide the capability for users to search for data references by interactively defining the area of interest on a displayed map/image reference background. Several agencies will be networked to provide easy access to a wide variety of information. LCGISN, with its headquarters at LGS, will serve as the central node on the network, providing data format conversions, projection and datum transformations, and storage of several of the most commonly used data sets. Thematic mapper data, USGS 7.5-minute quadrangle map boundaries, political and legal boundaries, major transportation routes, and other digital data will provide a base map to aid the user in selecting the exact area of interest. Then, the user will set search criteria by proceeding through a series of menu-driven options. The system will then return any or all of the following: a list of digital maps or imagery that can be displayed immediately and visually overlayed, a list of maps/remotely sensed data and information on their availability, and a list of bibliographic references concerning the area and subject defined.","largerWorkTitle":"GIS/LIS 1991 Proceedings","conferenceTitle":"Proceedings of GIS/LIS '91","conferenceDate":"28 October 1991 through 1 November 1991","conferenceLocation":"Atlanta, GA, USA","language":"English","publisher":"Publ by ASPRS","publisherLocation":"Bethesda, MD, United States","isbn":"0944426751","usgsCitation":"Hiland, M., McBride, R., Davis, D., Braud, D., Streiffer, H., Jones, F., Lewis, A., and Williams, S., 1991, Louisiana coastal GIS network: Graphical user interface for access to spatial data, in GIS/LIS 1991 Proceedings, v. 2, Atlanta, GA, USA, 28 October 1991 through 1 November 1991, p. 845-856.","productDescription":"12 p.","startPage":"845","endPage":"856","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":223579,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -91.4501953125,\n 29.03215782622282\n ],\n [\n -88.39599609375,\n 29.03215782622282\n ],\n [\n -88.39599609375,\n 30.453409130203596\n ],\n [\n -91.4501953125,\n 30.453409130203596\n ],\n [\n -91.4501953125,\n 29.03215782622282\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a49ece4b0c8380cd689ba","contributors":{"authors":[{"text":"Hiland, Matteson","contributorId":101390,"corporation":false,"usgs":true,"family":"Hiland","given":"Matteson","email":"","affiliations":[],"preferred":false,"id":370004,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McBride, Randolph A.","contributorId":48711,"corporation":false,"usgs":false,"family":"McBride","given":"Randolph A.","affiliations":[{"id":5115,"text":"Louisiana State University","active":true,"usgs":false}],"preferred":false,"id":370000,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davis, Donald","contributorId":90471,"corporation":false,"usgs":true,"family":"Davis","given":"Donald","affiliations":[],"preferred":false,"id":370003,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Braud, Dewitt","contributorId":66853,"corporation":false,"usgs":true,"family":"Braud","given":"Dewitt","affiliations":[],"preferred":false,"id":370001,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Streiffer, Henry","contributorId":105057,"corporation":false,"usgs":true,"family":"Streiffer","given":"Henry","email":"","affiliations":[],"preferred":false,"id":370005,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jones, Farrell","contributorId":105860,"corporation":false,"usgs":true,"family":"Jones","given":"Farrell","affiliations":[],"preferred":false,"id":370006,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lewis, Anthony","contributorId":67221,"corporation":false,"usgs":true,"family":"Lewis","given":"Anthony","affiliations":[],"preferred":false,"id":370002,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Williams, S.","contributorId":18514,"corporation":false,"usgs":true,"family":"Williams","given":"S.","email":"","affiliations":[],"preferred":false,"id":369999,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70016285,"text":"70016285 - 1991 - New method for calculating a mathematical expression for streamflow recession","interactions":[],"lastModifiedDate":"2012-03-12T17:18:41","indexId":"70016285","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"New method for calculating a mathematical expression for streamflow recession","docAbstract":"An empirical method has been devised to calculate the master recession curve, which is a mathematical expression for streamflow recession during times of negligible direct runoff. The method is based on the assumption that the storage-delay factor, which is the time per log cycle of streamflow recession, varies linearly with the logarithm of streamflow. The resulting master recession curve can be nonlinear. The method can be executed by a computer program that reads a data file of daily mean streamflow, then allows the user to select several near-linear segments of streamflow recession. The storage-delay factor for each segment is one of the coefficients of the equation that results from linear least-squares regression. Using results for each recession segment, a mathematical expression of the storage-delay factor as a function of the log of streamflow is determined by linear least-squares regression. The master recession curve, which is a second-order polynomial expression for time as a function of log of streamflow, is then derived using the coefficients of this function.","conferenceTitle":"Proceedings of the 1991 National Conference on Irrigation and Drainage","conferenceDate":"22 July 1991 through 26 July 1991","conferenceLocation":"Honolulu, HI, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872628116","usgsCitation":"Rutledge, A.T., 1991, New method for calculating a mathematical expression for streamflow recession, Proceedings of the 1991 National Conference on Irrigation and Drainage, Honolulu, HI, USA, 22 July 1991 through 26 July 1991, p. 337-343.","startPage":"337","endPage":"343","numberOfPages":"7","costCenters":[],"links":[{"id":222899,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a65e7e4b0c8380cd72c94","contributors":{"authors":[{"text":"Rutledge, Albert T.","contributorId":107031,"corporation":false,"usgs":true,"family":"Rutledge","given":"Albert","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":373081,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016532,"text":"70016532 - 1991 - Low intensity of the geomagnetic field in early Jurassic time","interactions":[],"lastModifiedDate":"2024-04-26T12:25:06.929138","indexId":"70016532","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2312,"text":"Journal of Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Low intensity of the geomagnetic field in early Jurassic time","docAbstract":"

From a large collection of Jurassic continental tholeiites cropping out in Europe and Africa, we selected 90 samples for paleointensity determinations. The samples were carefully selected to avoid any secondary magnetizations, especially viscous magnetization. Use of the Thellier method reveals that magnetic property changes due to heating begin often at quite low temperatures but fortunately without modifying noticeably their natural remanent magnetization-thermoremanent magnetization ratio. Twenty-eight well-clustered paleointensity estimates were obtained from two European dikes that were emplaced during Early Jurassic time: the Kerforne dike at Brenterc'h in Brittany (northwestern France) and the Messejana dike on the Iberian Peninsula (Spain and Portugal). Virtual dipole moments calculated from both magmatic units are similar and only about one-third of present-day values. These new data lend support to the recently postulated low dipole moment of the Mesozoic geomagnetic field.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/91JB00871","issn":"01480227","usgsCitation":"Perrin, M., Prevot, M., and Mankinen, E., 1991, Low intensity of the geomagnetic field in early Jurassic time: Journal of Geophysical Research, v. 96, no. B9, p. 14197-14210, https://doi.org/10.1029/91JB00871.","productDescription":"14 p.","startPage":"14197","endPage":"14210","costCenters":[],"links":[{"id":223573,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"B9","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a4a07e4b0c8380cd68a8c","contributors":{"authors":[{"text":"Perrin, M.","contributorId":63959,"corporation":false,"usgs":true,"family":"Perrin","given":"M.","email":"","affiliations":[],"preferred":false,"id":373827,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Prevot, M.","contributorId":75679,"corporation":false,"usgs":true,"family":"Prevot","given":"M.","email":"","affiliations":[],"preferred":false,"id":373828,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mankinen, E. A. 0000-0001-7496-2681","orcid":"https://orcid.org/0000-0001-7496-2681","contributorId":31786,"corporation":false,"usgs":true,"family":"Mankinen","given":"E. A.","affiliations":[],"preferred":false,"id":373826,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016447,"text":"70016447 - 1991 - Soil chronosequence studies in temperate to subtropical, low-latitude, low-relief terrain with data from the eastern United States","interactions":[],"lastModifiedDate":"2023-09-27T19:04:39.4049","indexId":"70016447","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1760,"text":"Geoderma","active":true,"publicationSubtype":{"id":10}},"title":"Soil chronosequence studies in temperate to subtropical, low-latitude, low-relief terrain with data from the eastern United States","docAbstract":"

The Coastal Plain of the eastern United States is a low-latitude, low-altitude, low-relief terrain composed primarily of gently dipping marine and marginal-marine sediments that range in age from Cretaceous to Quaternary. Population density of the area is moderate, and most of the population is concentrated along the coast. Inland of the coast, agriculture, including growing trees for pulp, is the dominant economy. In this region, soils have developed along two different pathways. One pathway is dominated by the dissolution and movement of oxyhydroxides and the accumulation of organic matter; the other by the accumulation of clays and oxyhydroxyides and the adsorption or oxidation of organic matter. The first pathway has resulted in the formation of Spodosols; the second, in the development of Ultisols. No clearly distinguishable age trends have been identified in the Spodosols, but the properties of Ultisols can be measured to quantify surface material alteration through time. Ultisols are, therefore, suited to order-of-magnitude chronostratigraphic interpretations. Potentially, data derived through the study of Ultisols can be used to develop models that predict how surface processes will change due to continued weathering and pedogenesis or as the result of climate change.

","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7061(91)90072-2","issn":"00167061","usgsCitation":"Markewich, H.W., and Pavich, M., 1991, Soil chronosequence studies in temperate to subtropical, low-latitude, low-relief terrain with data from the eastern United States: Geoderma, v. 51, no. 1-4, p. 213-239, https://doi.org/10.1016/0016-7061(91)90072-2.","productDescription":"27 p.","startPage":"213","endPage":"239","costCenters":[],"links":[{"id":223072,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alabama, Delaware, Florida, Georgia, Maryland, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -83.65740498515868,\n 29.56073216248066\n ],\n [\n -81.04209111575037,\n 29.70294791375342\n ],\n [\n -81.32008465430667,\n 30.336573155280433\n ],\n [\n -81.28926863352359,\n 30.839173001811446\n ],\n [\n -81.10795333948283,\n 31.675802100881526\n ],\n [\n -80.41054135680525,\n 32.2155811685203\n ],\n [\n -79.35141323445242,\n 32.88262853802331\n ],\n [\n -78.9951818009355,\n 33.080517055495775\n ],\n [\n -78.95338088751612,\n 33.44486091823089\n ],\n [\n -78.43340354833373,\n 33.73958574559721\n ],\n [\n -77.95669806937994,\n 33.63505845729995\n ],\n [\n -77.625425186773,\n 34.193993116921305\n ],\n [\n -77.05536053640651,\n 34.44958955891752\n ],\n [\n -76.27800212167642,\n 34.6980372864103\n ],\n [\n -75.66034727003597,\n 35.679759013216795\n ],\n [\n -75.63024711439672,\n 36.24611046119435\n ],\n [\n -75.75291815153346,\n 37.05242613609788\n ],\n [\n -75.64382189128256,\n 37.48612546856154\n ],\n [\n -75.04061840870713,\n 38.24571164914883\n ],\n [\n -74.54606120086645,\n 39.04666102268308\n ],\n [\n -74.16065699691825,\n 39.44510284389685\n ],\n [\n -73.91123229815838,\n 39.7461249726409\n ],\n [\n -73.98987192172642,\n 40.300395445354866\n ],\n [\n -73.67383075027301,\n 41.16024579379487\n ],\n [\n -73.45562020409652,\n 42.246377813940796\n ],\n [\n -73.24874940925498,\n 42.77550842067669\n ],\n [\n -77.29144540745926,\n 42.927755716296105\n ],\n [\n -77.37766959325147,\n 42.007514196380015\n ],\n [\n -79.64501061925347,\n 41.94853624470812\n ],\n [\n -79.6460568639244,\n 42.335962204424845\n ],\n [\n -80.50438839794788,\n 41.91098127866414\n ],\n [\n -80.5741585555397,\n 40.899542931395075\n ],\n [\n -80.73285291549277,\n 40.590263414786904\n ],\n [\n -80.69694400260454,\n 40.31039863298716\n ],\n [\n -80.96570253434754,\n 39.652857933995165\n ],\n [\n -81.418963558928,\n 39.414911863833964\n ],\n [\n -81.61948307147509,\n 39.43380229891457\n ],\n [\n -81.84637289319473,\n 39.14138287378918\n ],\n [\n -82.1359093662436,\n 39.02190171059155\n ],\n [\n -82.29219319714245,\n 38.798170410820376\n ],\n [\n -82.31564745443391,\n 38.52257047831131\n ],\n [\n -82.68922659569647,\n 38.45411056377512\n ],\n [\n -82.68906036545968,\n 38.195994304719164\n ],\n [\n -82.29806540311749,\n 37.645361355803544\n ],\n [\n -82.16905474335533,\n 37.455881280933184\n ],\n [\n -82.86080922721337,\n 37.11295010525521\n ],\n [\n -82.98927778322748,\n 36.92357308197964\n ],\n [\n -83.16094469814301,\n 36.871352448668105\n ],\n [\n -83.8447722119688,\n 36.59092866212001\n ],\n [\n -84.50260830666883,\n 36.25450391102903\n ],\n [\n -85.38289141785889,\n 35.59608738764305\n ],\n [\n -86.54619672147197,\n 34.68748424448863\n ],\n [\n -88.09453878295756,\n 34.65713328405975\n ],\n [\n -88.45882387865532,\n 32.28457646965607\n ],\n [\n -88.47957915470448,\n 30.412663603338416\n ],\n [\n -87.7830130061835,\n 30.251488905804294\n ],\n [\n -87.60687215829314,\n 30.11344712321747\n ],\n [\n -87.26815773703689,\n 30.224147044061937\n ],\n [\n -86.50464178478586,\n 30.3156419338991\n ],\n [\n -85.5675504699858,\n 29.927846128637057\n ],\n [\n -85.391940602425,\n 29.452508157008737\n ],\n [\n -84.43514465045406,\n 29.774246787668204\n ],\n [\n -84.14495900084188,\n 29.964033943908447\n ],\n [\n -83.76866227734911,\n 29.822433980986062\n ],\n [\n -83.65740498515868,\n 29.56073216248066\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"51","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b91f6e4b08c986b319be4","contributors":{"authors":[{"text":"Markewich, H. W.","contributorId":31426,"corporation":false,"usgs":true,"family":"Markewich","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":373560,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pavich, M.J.","contributorId":70788,"corporation":false,"usgs":true,"family":"Pavich","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":373561,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016528,"text":"70016528 - 1991 - Field-scale investigation of infiltration into a compacted soil liner","interactions":[],"lastModifiedDate":"2024-03-19T22:37:12.909496","indexId":"70016528","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Field-scale investigation of infiltration into a compacted soil liner","docAbstract":"

Little field-scale research has been done to evaluate the effectiveness of compacted soil barriers in retarding the movement of water and leachates. In response to this need, the Illinois State Geological Survey constructed and instrumented an experimental compacted soil liner. Infiltration of water into the liner has been monitored for two years. The objectives of this investigation were to determine whether a soil liner could be constructed to meet the U.S. EPA's requirement for a saturated hydraulic conductivity of less than or equal to 1.0×10−7 cm/s, to quantify the areal variability of the hydraulic properties of the liner, and to determine the transit time for water and tracers through the liner.

The liner measures 8 m×15 m×0.9 m and was designed and constructed to simulate compacted soil liners built at waste disposal facilities. The surface of the liner was flooded to form a pond on April 12, 1988. Since flooding, infiltration has been monitored with four large-ring (LR) and 32 small-ring (SR) infiltrometers, and a water-balance (WB) method that accounted for total infiltration and evaporation. Ring-infiltrometer and WB data were analyzed using cumulative-infiltration curves to determine infiltration fluxes. The SR data are lognormally distributed, and the SR and LR data form two statistically distinct populations. Small-ring data are nearly identical with WB data; because there is evidence of leakage in the LRs, the SR and WB data are considered more reliable.

Geostatistical analysis of the SR infiltration data revealed that the infiltration-flux data were unstructured (random) at scales greater than 0.8 m. This analysis shows that it is possible to construct a compacted soil liner with a uniformly low saturated hydraulic conductivity, and that classical statistics should adequately estimate the mean infiltration flux of the liner and the associated uncertainty in that value.

Saturated hydraulic conductivity of the liner was estimated using Darcy's Law and the Green-Ampt Approximation; the average values for these calculations, based on the first and second years of SR data, were 4.0×10−8 and 3.4×10−8 cm/s, respectively. Breakthrough of water at the liner's bottom is expected to occur approximately six years after the initial ponding of the liner.

","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1991.tb00579.x","issn":"0017467X","usgsCitation":"Panno, S.V., Herzog, B.L., Cartwright, K., Rehfeldt, K.R., Krapac, I.G., and Hensel, B.R., 1991, Field-scale investigation of infiltration into a compacted soil liner: Groundwater, v. 29, no. 6, p. 914-921, https://doi.org/10.1111/j.1745-6584.1991.tb00579.x.","productDescription":"8 p.","startPage":"914","endPage":"921","numberOfPages":"8","costCenters":[],"links":[{"id":223529,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"6","noUsgsAuthors":false,"publicationDate":"2005-08-04","publicationStatus":"PW","scienceBaseUri":"505a0fefe4b0c8380cd53a89","contributors":{"authors":[{"text":"Panno, Samuel V.","contributorId":87695,"corporation":false,"usgs":true,"family":"Panno","given":"Samuel","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":373819,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Herzog, Beverly L.","contributorId":18115,"corporation":false,"usgs":true,"family":"Herzog","given":"Beverly","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":373815,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cartwright, Keros","contributorId":43917,"corporation":false,"usgs":true,"family":"Cartwright","given":"Keros","email":"","affiliations":[],"preferred":false,"id":373816,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rehfeldt, Kenneth R.","contributorId":12203,"corporation":false,"usgs":true,"family":"Rehfeldt","given":"Kenneth","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":373814,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Krapac, Ivan G.","contributorId":79627,"corporation":false,"usgs":true,"family":"Krapac","given":"Ivan","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":373818,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hensel, Bruce R.","contributorId":44669,"corporation":false,"usgs":true,"family":"Hensel","given":"Bruce","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":373817,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70016516,"text":"70016516 - 1991 - Implications for organic maturation studies of evidence of a geologically rapid increase and stabilization of vitrinite reflectance at peak temperature: Cerro Prieto geothermal system, Mexico","interactions":[],"lastModifiedDate":"2023-01-19T15:35:41.392266","indexId":"70016516","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Implications for organic maturation studies of evidence of a geologically rapid increase and stabilization of vitrinite reflectance at peak temperature: Cerro Prieto geothermal system, Mexico","docAbstract":"

A short-term rapid heating and cooling of the rock in well M-94 below 1300 m was caused by a pulse of hot water passing through the edge of the Cerro Prieto, Mexico, geothermal system. Below 1300 m, the peak paleotemperatures were about 225-250 degrees C, but equilibrium well log temperatures indicate a decrease to 150-210 degrees C at present. This hot water pulse sharply increased vitrinite reflectance to levels comparable to those measured in the central part of the system, even though studies of apatite fission-track annealing indicate that the duration of heating was only 10{0}-10{1} yr in M-94, in contrast to 10{3}-10{4} yr in the central part of the system.

These data indicate that sedimentary organic matter chemically reacts quickly to temperature increases of about 125 degrees C above ambient, even when the higher temperature existed for only 10{0}-10{1} yr. The quick change of the vitrinite reflectance geothermometer indicates that thermal maturation reactions can stabilize, after a geologically short period of heating, to a level consistent with peak temperature under moderate to high-temperature diagenesis in open, fluid-rich, geothermal systems.

Cerro Prieto is one of the most intensively studied and well-known geothermal systems in the world. Thus, data from Cerro Prieto are a benchmark to compare with the predictions of published thermal maturation models such as those formulated by J. Karweil, N. V. Lopatin, and A. K. Burnham and J. J. Sweeney. These thermal maturation models inaccurately predict duration of heating at Cerro Prieto. The kinetic equations used in these models explicitly allow thermal maturation to continue indefinitely at peak temperature, which does not seem to be the case at Cerro Prieto.

","language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/0C9B2A51-1710-11D7-8645000102C1865D","usgsCitation":"Barker, C., 1991, Implications for organic maturation studies of evidence of a geologically rapid increase and stabilization of vitrinite reflectance at peak temperature: Cerro Prieto geothermal system, Mexico: American Association of Petroleum Geologists Bulletin, v. 75, no. 12, p. 1852-1863, https://doi.org/10.1306/0C9B2A51-1710-11D7-8645000102C1865D.","productDescription":"12 p.","startPage":"1852","endPage":"1863","numberOfPages":"12","costCenters":[],"links":[{"id":223474,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico, United States","otherGeospatial":"Cerro Prieto fault","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -115.93369314042859,\n 33.27841604648326\n ],\n [\n -115.93369314042859,\n 31.617852838278367\n ],\n [\n -114.37067035754815,\n 31.617852838278367\n ],\n [\n -114.37067035754815,\n 33.27841604648326\n ],\n [\n -115.93369314042859,\n 33.27841604648326\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"75","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3919e4b0c8380cd617d3","contributors":{"authors":[{"text":"Barker, C.E.","contributorId":69991,"corporation":false,"usgs":true,"family":"Barker","given":"C.E.","affiliations":[],"preferred":false,"id":373787,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016521,"text":"70016521 - 1991 - MBSSAS: A code for the computation of margules parameters and equilibrium relations in binary solid-solution aqueous-solution systems","interactions":[],"lastModifiedDate":"2019-04-10T09:03:20","indexId":"70016521","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1315,"text":"Computers & Geosciences","printIssn":"0098-3004","active":true,"publicationSubtype":{"id":10}},"title":"MBSSAS: A code for the computation of margules parameters and equilibrium relations in binary solid-solution aqueous-solution systems","docAbstract":"

The computer code MBSSAS uses two-parameter Margules-type excess-free-energy of mixing equations to calculate thermodynamic equilibrium, pure-phase saturation, and stoichiometric saturation states in binary solid-solution aqueous-solution (SSAS) systems. Lippmann phase diagrams, Roozeboom diagrams, and distribution-coefficient diagrams can be constructed from the output data files, and also can be displayed by MBSSAS (on IBM-PC compatible computers). MBSSAS also will calculate accessory information, such as the location of miscibility gaps, spinodal gaps, critical-mixing points, alyotropic extrema, Henry's law solid-phase activity coefficients, and limiting distribution coefficients. Alternatively, MBSSAS can use such information (instead of the Margules, Guggenheim, or Thompson and Waldbaum excess-free-energy parameters) to calculate the appropriate excess-free-energy of mixing equation for any given SSAS system.

","language":"English","publisher":"Elsevier","doi":"10.1016/0098-3004(91)90090-Z","issn":"00983004","usgsCitation":"Glynn, P.D., 1991, MBSSAS: A code for the computation of margules parameters and equilibrium relations in binary solid-solution aqueous-solution systems: Computers & Geosciences, v. 17, no. 7, p. 907-966, https://doi.org/10.1016/0098-3004(91)90090-Z.","productDescription":"60 p.","startPage":"907","endPage":"966","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":223526,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":266171,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0098-3004(91)90090-Z"}],"volume":"17","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4abee4b0c8380cd68fe5","contributors":{"authors":[{"text":"Glynn, P. D.","contributorId":7008,"corporation":false,"usgs":true,"family":"Glynn","given":"P.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":373800,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016401,"text":"70016401 - 1991 - A statistical approach to the interpretation of aliphatic hydrocarbon distributions in marine sediments","interactions":[],"lastModifiedDate":"2013-01-20T20:36:01","indexId":"70016401","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"A statistical approach to the interpretation of aliphatic hydrocarbon distributions in marine sediments","docAbstract":"Q-mode factor analysis was used to quantitate the distribution of the major aliphatic hydrocarbon (n-alkanes, pristane, phytane) systems in sediments from a variety of marine environments. The compositions of the pure end members of the systems were obtained from factor scores and the distribution of the systems within each sample was obtained from factor loadings. All the data, from the diverse environments sampled (estuarine (San Francisco Bay), fresh-water (San Francisco Peninsula), polar-marine (Antarctica) and geothermal-marine (Gorda Ridge) sediments), were reduced to three major systems: a terrestrial system (mostly high molecular weight aliphatics with odd-numbered-carbon predominance), a mature system (mostly low molecular weight aliphatics without predominance) and a system containing mostly high molecular weight aliphatics with even-numbered-carbon predominance. With this statistical approach, it is possible to assign the percentage contribution from various sources to the observed distribution of aliphatic hydrocarbons in each sediment sample. ?? 1991.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0009-2541(91)90070-8","issn":"00092541","usgsCitation":"Rapp, J.B., 1991, A statistical approach to the interpretation of aliphatic hydrocarbon distributions in marine sediments: Chemical Geology, v. 93, no. 1-2, p. 163-177, https://doi.org/10.1016/0009-2541(91)90070-8.","startPage":"163","endPage":"177","numberOfPages":"15","costCenters":[],"links":[{"id":266075,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0009-2541(91)90070-8"},{"id":223162,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e5aee4b0c8380cd46ef5","contributors":{"authors":[{"text":"Rapp, J. B.","contributorId":28987,"corporation":false,"usgs":true,"family":"Rapp","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":373380,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016367,"text":"70016367 - 1991 - The Wasatch fault zone, utah-segmentation and history of Holocene earthquakes","interactions":[],"lastModifiedDate":"2024-05-10T00:09:00.870699","indexId":"70016367","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2468,"text":"Journal of Structural Geology","active":true,"publicationSubtype":{"id":10}},"title":"The Wasatch fault zone, utah-segmentation and history of Holocene earthquakes","docAbstract":"

The Wasatch fault zone (WFZ) forms the eastern boundary of the Basin and Range province and is the longest continuous, active normal fault (343 km) in the United States. It underlies an urban corridor of 1.6 million people (80% of Utah's population) representing the largest earthquake risk in the interior of the western United States.

We have used paleoseismological data to identify 10 discrete segments of the WFZ. Five are active, medial segments with Holocene slip rates of 1–2 mm a−1, recurrence intervals of 2000–4000 years and average lengths of about 50 km. Five are less active, distal segments with mostly pre-Holocene surface ruptures, late Quaternary slip rates of <0.5 mm a−1 recurrence intervals of ≥10,000 years and average lengths of about 20 km. Surface-faulting events on each of the medial segments of the WFZ formed 2–4-m-high scarps repeatedly during the Holocene; latest Pleistocene (14–15 ka) deposits commonly have scarps as much as 15–20 m in height. Segments identified from paleoseismological studies of other major late Quaternary normal faults in the northern Basin and Range province are 20–25 km long, or about half of that proposed for the medial segments of the WFZ.

","language":"English","publisher":"Elsevier","doi":"10.1016/0191-8141(91)90062-N","issn":"01918141","usgsCitation":"Machette, M.N., Personius, S., Nelson, A., Schwartz, D.P., and Lund, W., 1991, The Wasatch fault zone, utah-segmentation and history of Holocene earthquakes: Journal of Structural Geology, v. 13, no. 2, p. 137-149, https://doi.org/10.1016/0191-8141(91)90062-N.","productDescription":"13 p.","startPage":"137","endPage":"149","numberOfPages":"13","costCenters":[],"links":[{"id":223465,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba97be4b08c986b3222c3","contributors":{"authors":[{"text":"Machette, M. N.","contributorId":19561,"corporation":false,"usgs":true,"family":"Machette","given":"M.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":373292,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Personius, S. F. 0000-0001-8347-7370","orcid":"https://orcid.org/0000-0001-8347-7370","contributorId":31408,"corporation":false,"usgs":true,"family":"Personius","given":"S. F.","affiliations":[],"preferred":false,"id":373293,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, A.R. 0000-0001-7117-7098","orcid":"https://orcid.org/0000-0001-7117-7098","contributorId":55078,"corporation":false,"usgs":true,"family":"Nelson","given":"A.R.","affiliations":[],"preferred":false,"id":373295,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schwartz, David P. 0000-0001-5193-9200","orcid":"https://orcid.org/0000-0001-5193-9200","contributorId":52968,"corporation":false,"usgs":true,"family":"Schwartz","given":"David","middleInitial":"P.","affiliations":[],"preferred":false,"id":373294,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lund, W.R.","contributorId":58781,"corporation":false,"usgs":true,"family":"Lund","given":"W.R.","email":"","affiliations":[],"preferred":false,"id":373296,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70016287,"text":"70016287 - 1991 - New hydrologic instrumentation in the U.S. Geological Survey","interactions":[],"lastModifiedDate":"2012-03-12T17:18:41","indexId":"70016287","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"New hydrologic instrumentation in the U.S. Geological Survey","docAbstract":"New water-level sensing and recording instrumentation is being used by the U.S. Geological Survey for monitoring water levels, stream velocities, and water-quality characteristics. Several of these instruments are briefly described. The Basic Data Recorder (BDR) is an electronic data logger, that interfaces to sensor systems through a serial-digital interface standard (SDI-12), which was proposed by the data-logger industry; the Incremental Shaft Encoder is an intelligent water-level sensor, which interfaces to the BDR through the SDI-12; the Pressure Sensor is an intelligent, nonsubmersible pressure sensor, which interfaces to the BDR through the SDI-12 and monitors water levels from 0 to 50 feet; the Ultrasonic Velocity Meter is an intelligent, water-velocity sensor, which interfaces to the BDR through the SDI-12 and measures the velocity across a stream up to 500 feet in width; the Collapsible Hand Sampler can be collapsed for insertion through holes in the ice and opened under the ice to collect a water sample; the Lighweight Ice Auger, weighing only 32 pounds, can auger 6- and 8-inch holes through approximately 3.5 feet of ice; and the Ice Chisel has a specially hardened steel blade and 6-foot long, hickory D-handle.","largerWorkTitle":"Cold Regions Engineering","conferenceTitle":"Sixth International Cold Regions Engineering Conference","conferenceDate":"26 February 1991 through 28 February 1991","conferenceLocation":"West Lebanon, NH, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872627985","usgsCitation":"Latkovich, V., and Shope, W., 1991, New hydrologic instrumentation in the U.S. Geological Survey, in Cold Regions Engineering, West Lebanon, NH, USA, 26 February 1991 through 28 February 1991, p. 739-747.","startPage":"739","endPage":"747","numberOfPages":"9","costCenters":[],"links":[{"id":222901,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6592e4b0c8380cd72c22","contributors":{"editors":[{"text":"Sodhi Devinder S.","contributorId":128371,"corporation":true,"usgs":false,"organization":"Sodhi Devinder S.","id":536325,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Latkovich, V.J.","contributorId":52576,"corporation":false,"usgs":true,"family":"Latkovich","given":"V.J.","email":"","affiliations":[],"preferred":false,"id":373084,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shope, W.G.","contributorId":17272,"corporation":false,"usgs":true,"family":"Shope","given":"W.G.","email":"","affiliations":[],"preferred":false,"id":373083,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016489,"text":"70016489 - 1991 - Methods of measuring pumpage through closed-conduit irrigation systems","interactions":[],"lastModifiedDate":"2024-05-08T14:45:05.630378","indexId":"70016489","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2362,"text":"Journal of Irrigation and Drainage Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Methods of measuring pumpage through closed-conduit irrigation systems","docAbstract":"

Methods of measuring volumes of water withdrawn from the Snake River and its tributaries and pumped through closed‐conduit irrigation systems were needed for equitable management of and resolution of conflicts over water use. On the basis of evaluations and field tests by researchers from the University of Idaho, Water Resources Research Institute, Moscow, Idaho, an impeller meter was selected to monitor pumpage through closed‐conduit systems. In 1988, impeller meters were installed at 20 pumping stations along the Snake River between the Upper Salmon Falls and C.J. Strike Dams. Impeller‐derived pumpage data were adjusted if they differed substantially from ultrasonic flow‐meter‐ or current‐meter‐derived values. Comparisons of pumpage data obtained by ultrasonic flow‐meter and current‐meter measurements indicated that the ultrasonic flow meter was a reliable means to check operation of impeller meters. The equipment generally performed satisfactorily, and reliable pumpage data could be obtained using impeller meters in closed‐conduit irrigation systems. Many pumping stations that divert water from the Snake River for irrigation remain unmeasured; however, regression analyses indicate that total pumpage can be reasonably estimated on the basis of electrical power consumption data, an approximation of total head at a pumping station, and a derived coefficient.

","language":"English","publisher":"ASCE","doi":"10.1061/(ASCE)0733-9437(1991)117:5(748)","issn":"07339437","usgsCitation":"Kjelstrom, L., 1991, Methods of measuring pumpage through closed-conduit irrigation systems: Journal of Irrigation and Drainage Engineering, v. 117, no. 5, p. 748-757, https://doi.org/10.1061/(ASCE)0733-9437(1991)117:5(748).","productDescription":"10 p.","startPage":"748","endPage":"757","numberOfPages":"10","costCenters":[],"links":[{"id":223370,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"117","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5603e4b0c8380cd6d31b","contributors":{"authors":[{"text":"Kjelstrom, L.C.","contributorId":89104,"corporation":false,"usgs":true,"family":"Kjelstrom","given":"L.C.","email":"","affiliations":[],"preferred":false,"id":373705,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016464,"text":"70016464 - 1991 - Recognition of microclimate zones through radon mapping, Lechuguilla Cave, Carlsbad Caverns National Park, New Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:18:44","indexId":"70016464","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1884,"text":"Health Physics","active":true,"publicationSubtype":{"id":10}},"title":"Recognition of microclimate zones through radon mapping, Lechuguilla Cave, Carlsbad Caverns National Park, New Mexico","docAbstract":"Radon concentrations range from <185 to 3,515 Bq m-3 throughout Lechuguilla Cave, Carlsbad Caverns National Park, New Mexico. Concentrations in the entrance passages and areas immediately adjacent to these passages are controlled by outside air temperature and barometric pressure, similar to other Type 2 caves. Most of the cave is developed in three geographic branches beneath the entrance passages; these areas maintain Rn levels independent of surface effects, an indication that Rn levels in deep, complex caves or mines cannot be simply estimated by outside atmospheric parameters. These deeper, more isolated areas are subject to convective ventilation driven by temperature differences along the 477-m vertical extent of the cave. Radon concentrations are used to delineate six microclimate zones (air circulation cells) throughout the cave in conjunction with observed airflow data. Suspected surface connections contribute fresh air to remote cave areas demonstrated by anomalous Rn lows surrounded by higher values, the presence of mammalian skeletal remains, CO2 concentrations and temperatures lower than the cave mean, and associated surficial karst features.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Health Physics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00179078","usgsCitation":"Cunningham, K., and LaRock, E.J., 1991, Recognition of microclimate zones through radon mapping, Lechuguilla Cave, Carlsbad Caverns National Park, New Mexico: Health Physics, v. 61, no. 4, p. 493-500.","startPage":"493","endPage":"500","numberOfPages":"8","costCenters":[],"links":[{"id":223171,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"61","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9679e4b0c8380cd81ffa","contributors":{"authors":[{"text":"Cunningham, K.I.","contributorId":91865,"corporation":false,"usgs":true,"family":"Cunningham","given":"K.I.","email":"","affiliations":[],"preferred":false,"id":373624,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LaRock, E. J.","contributorId":108190,"corporation":false,"usgs":true,"family":"LaRock","given":"E.","middleInitial":"J.","affiliations":[],"preferred":false,"id":373625,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":5222868,"text":"5222868 - 1991 - Survival and band recovery rates of sympatric grey ducks and mallards in New Zealand","interactions":[],"lastModifiedDate":"2024-12-02T16:55:34.838791","indexId":"5222868","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Survival and band recovery rates of sympatric grey ducks and mallards in New Zealand","docAbstract":"

We used band recovery data from grey ducks (Anas superciliosa) and mallards. (A. platyrhynchos) banded sympatrically during 1957-74 to estimate annual survival and recovery rates. Young birds tended to have higher recovery rates and lower survival rates than adults for both species. Both species showed strong evidence of year-to-year variation in annual survival rates. Survival rates of male mallards were higher than those in females, as is typical for this species in North America, but there was no evidence of sex-specific survival differences in grey ducks. Recovery rate estimates for grey ducks were high and were significantly higher than those for mallards. However, survival rates did not differ significantly between the 2 species within any age-sex class. The similar survival rates, when mallard populations were increasing and grey ducks were decreasing, suggest that mallard reproductive rates have been greater than those of grey ducks.

","language":"English","publisher":"Wiley","doi":"10.2307/3809247","usgsCitation":"Caithness, T., Williams, M., and Nichols, J., 1991, Survival and band recovery rates of sympatric grey ducks and mallards in New Zealand: Journal of Wildlife Management, v. 55, no. 1, p. 111-118, https://doi.org/10.2307/3809247.","productDescription":"8 p.","startPage":"111","endPage":"118","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":198234,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"New Zealand","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[173.02037,-40.91905],[173.24723,-41.332],[173.95841,-40.9267],[174.24759,-41.34916],[174.24852,-41.77001],[173.87645,-42.23318],[173.22274,-42.97004],[172.71125,-43.37229],[173.08011,-43.85334],[172.30858,-43.86569],[171.45293,-44.24252],[171.18514,-44.8971],[170.6167,-45.90893],[169.83142,-46.35577],[169.33233,-46.64124],[168.41135,-46.61994],[167.76374,-46.2902],[166.67689,-46.21992],[166.50914,-45.8527],[167.04642,-45.11094],[168.30376,-44.12397],[168.94941,-43.93582],[169.66781,-43.55533],[170.52492,-43.03169],[171.12509,-42.51275],[171.56971,-41.76742],[171.94871,-41.51442],[172.09723,-40.9561],[172.79858,-40.49396],[173.02037,-40.91905]]],[[[174.61201,-36.1564],[175.33662,-37.2091],[175.3576,-36.52619],[175.80889,-36.79894],[175.95849,-37.55538],[176.7632,-37.88125],[177.43881,-37.96125],[178.01035,-37.57982],[178.51709,-37.69537],[178.27473,-38.58281],[177.97046,-39.16634],[177.20699,-39.14578],[176.93998,-39.44974],[177.03295,-39.87994],[176.88582,-40.06598],[176.50802,-40.60481],[176.01244,-41.28962],[175.23957,-41.68831],[175.0679,-41.42589],[174.65097,-41.28182],[175.22763,-40.45924],[174.90016,-39.90893],[173.82405,-39.50885],[173.85226,-39.1466],[174.5748,-38.79768],[174.74347,-38.02781],[174.69702,-37.38113],[174.29203,-36.71109],[174.319,-36.53482],[173.841,-36.12198],[173.05417,-35.23713],[172.63601,-34.52911],[173.00704,-34.45066],[173.5513,-35.00618],[174.32939,-35.2655],[174.61201,-36.1564]]]]},\"properties\":{\"name\":\"New Zealand\"}}]}","volume":"55","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db68867a","contributors":{"authors":[{"text":"Caithness, Tom","contributorId":6161,"corporation":false,"usgs":true,"family":"Caithness","given":"Tom","email":"","affiliations":[],"preferred":false,"id":337342,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, Murray","contributorId":100499,"corporation":false,"usgs":true,"family":"Williams","given":"Murray","email":"","affiliations":[],"preferred":false,"id":337344,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nichols, James D. jnichols@usgs.gov","contributorId":139087,"corporation":false,"usgs":true,"family":"Nichols","given":"James D.","email":"jnichols@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":337343,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016839,"text":"70016839 - 1991 - An analysis of a seismic reflection from the base of a gas hydrate zone, offshore Peru","interactions":[],"lastModifiedDate":"2023-01-19T17:24:44.430323","indexId":"70016839","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"An analysis of a seismic reflection from the base of a gas hydrate zone, offshore Peru","docAbstract":"

Seismic reflection data recorded near ODP Site 688, offshore Peru, exhibit a persistent bottom-simulating reflector (BSR) from a depth corresponding to the theoretical base of the gas hydrate stability field. Although gas hydrate has been recovered in cores from scientific drilling in both the Pacific and the Atlantic, drilling in areas exhibiting a BSR has usually been avoided because of the perceived risk of releasing free gas trapped beneath the hydrated sediments. To carry out a quantitative analysis of the BSR, the seismic data were reprocessed using signature deconvolution and true amplitude recovery techniques. Synthetic seismograms that were created using acoustic parameters extracted from the seismic data and physical properties from Site 688 borehole measurement were compared to the observed seismic data to estimate the thickness of the free-gas zone. Results indicate the BSR is discontinuous laterally. Where the BSR is of high amplitude, free gas in a zone 5.5-17 m thick beneath the hydrated sediments provides the observed waveform; where the BSR amplitude is low, the free-gas zone is much thinner than 5.5 m or is entirely absent.

","language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/0C9B288F-1710-11D7-8645000102C1865D","usgsCitation":"Miller, J.J., Lee, M.W., and von Huene, R.E., 1991, An analysis of a seismic reflection from the base of a gas hydrate zone, offshore Peru: American Association of Petroleum Geologists Bulletin, v. 75, no. 5, p. 910-924, https://doi.org/10.1306/0C9B288F-1710-11D7-8645000102C1865D.","productDescription":"15 p.","startPage":"910","endPage":"924","numberOfPages":"15","costCenters":[],"links":[{"id":225082,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Peru","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -75,\n -16\n ],\n [\n -75,\n -4\n ],\n [\n -82.5,\n -4\n ],\n [\n -82.5,\n -16\n ],\n [\n -75,\n -16\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"75","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e9eee4b0c8380cd48533","contributors":{"authors":[{"text":"Miller, J. J.","contributorId":54588,"corporation":false,"usgs":true,"family":"Miller","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":374632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, Myung W.","contributorId":84358,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","middleInitial":"W.","affiliations":[],"preferred":false,"id":374634,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"von Huene, Roland E. 0000-0003-1301-3866 rvonhuene@usgs.gov","orcid":"https://orcid.org/0000-0003-1301-3866","contributorId":191070,"corporation":false,"usgs":true,"family":"von Huene","given":"Roland","email":"rvonhuene@usgs.gov","middleInitial":"E.","affiliations":[{"id":7065,"text":"USGS emeritus","active":true,"usgs":false},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":374633,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015076,"text":"70015076 - 1991 - Importance of hydrologic data for interpreting wetland maps and assessing wetland loss and mitigation","interactions":[],"lastModifiedDate":"2012-03-12T17:18:59","indexId":"70015076","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1022,"text":"Biological Report - US Fish & Wildlife Service","active":true,"publicationSubtype":{"id":10}},"title":"Importance of hydrologic data for interpreting wetland maps and assessing wetland loss and mitigation","docAbstract":"The US Geological Survey collects and disseminates, in written and digital formats, groundwater and surface-water information related to the tidal and nontidal wetlands of the United States. This information includes quantity, quality, and availability of groundwater and surface water; groundwater and surface-water interactions (recharge-discharge); groundwater flow; and the basic surface-water characteristics of streams, rivers, lakes, and wetlands. Water resources information in digital format can be used in geographic information systems (GISs) for many purposes related to wetlands. US Geological Survey wetland-related activities include collection of information important for assessing and mitigating coastal wetland loss and modification, hydrologic data collection and interpretation, GIS activities, identification of national trends in water quality and quantity, and process-oriented wetland research. -Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biological Report - US Fish & Wildlife Service","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Carter, V., 1991, Importance of hydrologic data for interpreting wetland maps and assessing wetland loss and mitigation: Biological Report - US Fish & Wildlife Service, v. 90, no. 18, p. 79-85.","startPage":"79","endPage":"85","numberOfPages":"7","costCenters":[],"links":[{"id":224403,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"90","issue":"18","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a393be4b0c8380cd61856","contributors":{"authors":[{"text":"Carter, V.","contributorId":61115,"corporation":false,"usgs":true,"family":"Carter","given":"V.","email":"","affiliations":[],"preferred":false,"id":369998,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":54779,"text":"wdrNHVT901 - 1991 - Water Resources Data, New Hampshire and Vermont, Water Year 1990","interactions":[],"lastModifiedDate":"2023-07-14T15:20:15.175783","indexId":"wdrNHVT901","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":340,"text":"Water Data Report","code":"WDR","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"NH-VT-90-1","title":"Water Resources Data, New Hampshire and Vermont, Water Year 1990","docAbstract":"

No abstract available. 

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wdrNHVT901","usgsCitation":"Toppin, K., McKenna, K., Cotton, J.E., and Denner, J., 1991, Water Resources Data, New Hampshire and Vermont, Water Year 1990: U.S. Geological Survey Water Data Report NH-VT-90-1, x, 136 p., https://doi.org/10.3133/wdrNHVT901.","productDescription":"x, 136 p.","costCenters":[],"links":[{"id":174467,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wdr/2000/nh-vt-90-01/report-thumb.jpg"},{"id":372583,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wdr/2000/nh-vt-90-01/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"New Hampshire, Vermont","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -73.3447265625,\n 42.68243539838623\n ],\n [\n -70.68603515625,\n 42.68243539838623\n ],\n [\n -70.68603515625,\n 45.213003555993964\n ],\n [\n -73.3447265625,\n 45.213003555993964\n ],\n [\n -73.3447265625,\n 42.68243539838623\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb3a9","contributors":{"authors":[{"text":"Toppin, K. W.","contributorId":35776,"corporation":false,"usgs":true,"family":"Toppin","given":"K. W.","affiliations":[],"preferred":false,"id":251518,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKenna, K.E.","contributorId":58333,"corporation":false,"usgs":true,"family":"McKenna","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":251520,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cotton, J. E.","contributorId":52976,"corporation":false,"usgs":true,"family":"Cotton","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":251519,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Denner, J.C.","contributorId":75562,"corporation":false,"usgs":true,"family":"Denner","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":251521,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70016951,"text":"70016951 - 1991 - Estimates of velocity structure and source depth using multiple P waves from aftershocks of the 1987 Elmore Ranch and Superstition Hills, California, earthquakes","interactions":[],"lastModifiedDate":"2023-10-24T23:43:28.479681","indexId":"70016951","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","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":"Estimates of velocity structure and source depth using multiple P waves from aftershocks of the 1987 Elmore Ranch and Superstition Hills, California, earthquakes","docAbstract":"

Event record sections, which are constructed by plotting seismograms from many closely spaced earthquakes recorded on a few stations, show multiple free-surface reflections (PP, PPP, PPPP) of the P wave in the Imperial Valley, California. The relative timing of these arrivals is used to estimate the strength of the P-wave velocity gradient within the upper 5 km of the sediment layer. Consistent with previous studies, a velocity model with a value of 1.8 km/sec at the surface increasing linearly to 5.8 km/sec at a depth of 5.5 km fits the data well. The relative amplitudes of the P and PP arrivals are used to estimate the source depth for the aftershock distributions of the Elmore Ranch and Superstition Hills main shocks. Although the depth determination has large uncertainties, both the Elmore Ranch and Superstition Hills aftershock sequences appear to have similar depth distribution in the range of 4 to 10 km.

","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0810020508","usgsCitation":"Mori, J., 1991, Estimates of velocity structure and source depth using multiple P waves from aftershocks of the 1987 Elmore Ranch and Superstition Hills, California, earthquakes: Bulletin of the Seismological Society of America, v. 81, no. 2, p. 508-523, https://doi.org/10.1785/BSSA0810020508.","productDescription":"16 p.","startPage":"508","endPage":"523","numberOfPages":"16","costCenters":[],"links":[{"id":225192,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -115.37424013022881,\n 33.234666306800605\n ],\n [\n -115.37424013022881,\n 32.83924814821901\n ],\n [\n -114.875450495058,\n 32.83924814821901\n ],\n [\n -114.875450495058,\n 33.234666306800605\n ],\n [\n -115.37424013022881,\n 33.234666306800605\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"81","issue":"2","noUsgsAuthors":false,"publicationDate":"1991-04-01","publicationStatus":"PW","scienceBaseUri":"505a0af9e4b0c8380cd524e6","contributors":{"authors":[{"text":"Mori, J.","contributorId":24923,"corporation":false,"usgs":true,"family":"Mori","given":"J.","email":"","affiliations":[],"preferred":false,"id":374954,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016895,"text":"70016895 - 1991 - Exploration drilling and reservoir model of the Platanares geothermal system, Honduras, Central America","interactions":[],"lastModifiedDate":"2012-03-12T17:18:49","indexId":"70016895","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Exploration drilling and reservoir model of the Platanares geothermal system, Honduras, Central America","docAbstract":"Results of drilling, logging, and testing of three exploration core holes, combined with results of geologic and hydrogeochemical investigations, have been used to present a reservoir model of the Platanares geothermal system, Honduras. Geothermal fluids circulate at depths ??? 1.5 km in a region of active tectonism devoid of Quaternary volcanism. Large, artesian water entries of 160 to 165??C geothermal fluid in two core holes at 625 to 644 m and 460 to 635 m depth have maximum flow rates of roughly 355 and 560 l/min, respectively, which are equivalent to power outputs of about 3.1 and 5.1 MW(thermal). Dilute, alkali-chloride reservoir fluids (TDS ??? 1200 mg/kg) are produced from fractured Miocene andesite and Cretaceous to Eocene redbeds that are hydrothermally altered. Fracture permeabillity in producing horizons is locally greater than 1500 and bulk porosity is ??? 6%. A simple, fracture-dominated, volume-impedance model assuming turbulent flow indicates that the calculated reservoir storage capacity of each flowing hole is approximately 9.7 ?? 106 l/(kg cm-2), Tritium data indicate a mean residence time of 450 yr for water in the reservoir. Multiplying the natural fluid discharge rate by the mean residence time gives an estimated water volume of the Platanares system of ??? 0.78 km3. Downward continuation of a 139??C/km \"conductive\" gradient at a depth of 400 m in a third core hole implies that the depth to a 225??C source reservoir (predicted from chemical geothermometers) is at least 1.5 km. Uranium-thorium disequilibrium ages on calcite veins at the surface and in the core holes indicate that the present Platanares hydrothermal system has been active for the last 0.25 m.y. ?? 1991.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Goff, F., Goff, S., Kelkar, S., Shevenell, L., Truesdell, A., Musgrave, J., Rufenacht, H., and Flores, W., 1991, Exploration drilling and reservoir model of the Platanares geothermal system, Honduras, Central America: Journal of Volcanology and Geothermal Research, v. 45, no. 1-2, p. 101-123.","startPage":"101","endPage":"123","numberOfPages":"23","costCenters":[],"links":[{"id":225187,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e0ce4b0c8380cd532a4","contributors":{"authors":[{"text":"Goff, F.","contributorId":53408,"corporation":false,"usgs":true,"family":"Goff","given":"F.","email":"","affiliations":[],"preferred":false,"id":374790,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goff, S.J.","contributorId":30372,"corporation":false,"usgs":true,"family":"Goff","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":374788,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kelkar, S.","contributorId":9406,"corporation":false,"usgs":true,"family":"Kelkar","given":"S.","affiliations":[],"preferred":false,"id":374786,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shevenell, L.","contributorId":55971,"corporation":false,"usgs":true,"family":"Shevenell","given":"L.","affiliations":[],"preferred":false,"id":374791,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Truesdell, A.H.","contributorId":52566,"corporation":false,"usgs":false,"family":"Truesdell","given":"A.H.","email":"","affiliations":[{"id":6672,"text":"former: USGS Southwest Biological Science Center, Colorado Plateau Research Station, Flagstaff, AZ. Current address: TN-SCORE, Univ of Tennessee, Knoxville, TN, e-mail: jennen@gmail.com","active":true,"usgs":false}],"preferred":false,"id":374789,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Musgrave, J.","contributorId":16586,"corporation":false,"usgs":true,"family":"Musgrave","given":"J.","email":"","affiliations":[],"preferred":false,"id":374787,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rufenacht, H.","contributorId":99706,"corporation":false,"usgs":true,"family":"Rufenacht","given":"H.","email":"","affiliations":[],"preferred":false,"id":374793,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Flores, W.","contributorId":75285,"corporation":false,"usgs":true,"family":"Flores","given":"W.","email":"","affiliations":[],"preferred":false,"id":374792,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70188412,"text":"70188412 - 1991 - Integration of remote sensing and GIS: Data and data access","interactions":[],"lastModifiedDate":"2017-06-08T13:04:47","indexId":"70188412","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3052,"text":"Photogrammetric Engineering and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Integration of remote sensing and GIS: Data and data access","docAbstract":"

CT: Theintegration of remote sensing tools and technology with the spatial analysis orientation of geographic information systems is a complex task. In this paper, we focus on the issues of making data available and useful to the user. In part, this involves a set of problems which reflect on the physical and logical structures used to encode the data. At the same time, however, the mechanisms and protocols which provide information about the data, and which maintain the data through time, have become increasingly important. We discuss these latter issues from the viewpoint of the functions which must be provided by archives of spatial data.

","language":"English","publisher":"ASPRS","usgsCitation":"Ehlers, M., Greenlee, D.D., Smith, T., and Star, J., 1991, Integration of remote sensing and GIS: Data and data access: Photogrammetric Engineering and Remote Sensing, v. 57, no. 6, p. 669-675.","productDescription":"7 p.","startPage":"669","endPage":"675","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":342299,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"593ad70fe4b0764e6c602186","contributors":{"authors":[{"text":"Ehlers, M.","contributorId":60437,"corporation":false,"usgs":true,"family":"Ehlers","given":"M.","email":"","affiliations":[],"preferred":false,"id":697641,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Greenlee, D. D.","contributorId":20079,"corporation":false,"usgs":true,"family":"Greenlee","given":"D.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":697642,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, T.","contributorId":28032,"corporation":false,"usgs":true,"family":"Smith","given":"T.","affiliations":[],"preferred":false,"id":697643,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Star, J.","contributorId":192749,"corporation":false,"usgs":false,"family":"Star","given":"J.","email":"","affiliations":[],"preferred":false,"id":697644,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}