{"pageNumber":"4","pageRowStart":"75","pageSize":"25","recordCount":3321,"records":[{"id":61468,"text":"mf2360 - 2001 - Surface Fractures Formed in the Potrero Canyon, Tapo Canyon, and McBean Parkway Areas in Association with the 1994 Northridge, California Earthquake","interactions":[],"lastModifiedDate":"2012-02-10T00:10:30","indexId":"mf2360","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2360","title":"Surface Fractures Formed in the Potrero Canyon, Tapo Canyon, and McBean Parkway Areas in Association with the 1994 Northridge, California Earthquake","docAbstract":"INTRODUCTION\r\n\r\nThe magnitude 6.7 (M6.7) Northridge earthquake of 17 January 1994 strongly shook the Los Angeles urban region, resulting in 33 direct deaths, more than 20,000 people forced out of their homes, and an estimated $20 billion in damage (Hall, 1994). The earthquake was caused by slip on a previously unrecognized south-dipping fault buried beneath the San Fernando Valley. Slip on the fault propagated from a depth of about 19 km to about 8 km below the ground surface (USGS and SCEC, 1994). Although there was no surface faulting associated with the causative fault, surface fractures did develop along at least one fault (Mission Wells fault) and also in areas without recognized faults (Hart and others, 1995; Hecker and others, 1995a, 1995b; Rymer and others, 1995; Treiman, 1995). The term 'surface fractures' is used herein to describe ground breakage that is not associated with primary faulting or with triggered, secondary, surface faulting on a deep seismogenic fault.\r\n\r\nThis report describes fault- and nonfault-related surface fractures that occurred at three sites, Potrero Canyon, Tapo Canyon, and the McBean Parkway area, 22 to 28 km north-northwest of the main shock (Fig. 1). Investigation of these sites documents far reaching effects of even moderately large earthquakes. Study of such effects has become increasingly important with further urbanization and development. Hecker and others (1995a, 1995b) documented the distribution of surface deformation associated with the Northridge earthquake in the Granada Hills area.\r\n\r\nThe search for surface faulting and surface fracturing was initiated within hours of the earthquake. Both ground and airborne searches were made of the region. After fresh surface fractures were found in Potrero Canyon, aerial photographs were taken of the area (including the McBean Parkway site) by I.K. Curtis, on 21 January 1994, at scales of about 1:2,000 and 1:6,000. These aerial photographs were studied under high magnification to supplement ground-based observations of surface fractures.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2360","usgsCitation":"Rymer, M.J., Treiman, J.A., Powers, T.J., Fumal, T.E., Schwartz, D.P., Hamilton, J.C., and Cinti, F.R., 2001, Surface Fractures Formed in the Potrero Canyon, Tapo Canyon, and McBean Parkway Areas in Association with the 1994 Northridge, California Earthquake: U.S. Geological Survey Miscellaneous Field Studies Map 2360, Map: 50 x 35 inches, https://doi.org/10.3133/mf2360.","productDescription":"Map: 50 x 35 inches","costCenters":[{"id":648,"text":"Western Earthquake Hazards","active":false,"usgs":true}],"links":[{"id":110232,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46455.htm","linkFileType":{"id":5,"text":"html"},"description":"46455"},{"id":182687,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9537,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2360/","linkFileType":{"id":5,"text":"html"}}],"scale":"4000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.75,34.083333333333336 ], [ -118.75,34.416666666666664 ], [ -118.5,34.416666666666664 ], [ -118.5,34.083333333333336 ], [ -118.75,34.083333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4affe4b07f02db697a13","contributors":{"authors":[{"text":"Rymer, Michael J. mrymer@usgs.gov","contributorId":1522,"corporation":false,"usgs":true,"family":"Rymer","given":"Michael","email":"mrymer@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":265712,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Treiman, Jerome A.","contributorId":75010,"corporation":false,"usgs":true,"family":"Treiman","given":"Jerome","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":265718,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powers, Thomas J.","contributorId":57723,"corporation":false,"usgs":true,"family":"Powers","given":"Thomas","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":265716,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fumal, Thomas E.","contributorId":67882,"corporation":false,"usgs":true,"family":"Fumal","given":"Thomas","email":"","middleInitial":"E.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":265717,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schwartz, David P. 0000-0001-5193-9200 dschwartz@usgs.gov","orcid":"https://orcid.org/0000-0001-5193-9200","contributorId":1940,"corporation":false,"usgs":true,"family":"Schwartz","given":"David","email":"dschwartz@usgs.gov","middleInitial":"P.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":265713,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hamilton, John C. jhamilton@usgs.gov","contributorId":4202,"corporation":false,"usgs":true,"family":"Hamilton","given":"John","email":"jhamilton@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":265714,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Cinti, Francesca R.","contributorId":24632,"corporation":false,"usgs":true,"family":"Cinti","given":"Francesca","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":265715,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":61474,"text":"mf2385 - 2001 - Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California","interactions":[],"lastModifiedDate":"2012-02-10T00:10:31","indexId":"mf2385","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2385","title":"Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California","docAbstract":" Map data that predict the varying likelihood of landsliding can help public agencies make informed decisions on land use and zoning. This map, prepared in a geographic information system from a statistical model, estimates the relative likelihood of local slopes to fail by two processes common to an area of diverse geology, terrain, and land use centered on metropolitan Oakland. The model combines the following spatial data: (1) 120 bedrock and surficial geologic-map units, (2) ground slope calculated from a 30-m digital elevation model, (3) an inventory of 6,714 old landslide deposits (not distinguished by age or type of movement and excluding debris flows), and (4) the locations of 1,192 post-1970 landslides that damaged the built environment. The resulting index of likelihood, or susceptibility, plotted as a 1:50,000-scale map, is computed as a continuous variable over a large area (872 km2) at a comparatively fine (30 m) resolution. This new model complements landslide inventories by estimating susceptibility between existing landslide deposits, and improves upon prior susceptibility maps by quantifying the degree of susceptibility within those deposits.\r\n Susceptibility is defined for each geologic-map unit as the spatial frequency (areal percentage) of terrain occupied by old landslide deposits, adjusted locally by steepness of the topography. Susceptibility of terrain between the old landslide deposits is read directly from a slope histogram for each geologic-map unit, as the percentage (0.00 to 0.90) of 30-m cells in each one-degree slope interval that coincides with the deposits. Susceptibility within landslide deposits (0.00 to 1.33) is this same percentage raised by a multiplier (1.33) derived from the comparative frequency of recent failures within and outside the old deposits. Positive results from two evaluations of the model encourage its extension to the 10-county San Francisco Bay region and elsewhere. A similar map could be prepared for any area where the three basic constituents, a geologic map, a landslide inventory, and a slope map, are available in digital form. Added predictive power of the new susceptibility model may reside in attributes that remain to be explored?among them seismic shaking, distance to nearest road, and terrain elevation, aspect, relief, and curvature.","language":"ENGLISH","doi":"10.3133/mf2385","usgsCitation":"Pike, R., Graymer, R., Roberts, S., Kalman, N., and Sobieszczyk, S., 2001, Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California (Online version 1.1): U.S. Geological Survey Miscellaneous Field Studies Map 2385, 37 p. and 1 sheet, https://doi.org/10.3133/mf2385.","productDescription":"37 p. and 1 sheet","costCenters":[],"links":[{"id":110284,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49791.htm","linkFileType":{"id":5,"text":"html"},"description":"49791"},{"id":180435,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6044,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/2385/","linkFileType":{"id":5,"text":"html"}}],"scale":"50000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.36749999999999,37.6175 ], [ -122.36749999999999,38 ], [ -122,38 ], [ -122,37.6175 ], [ -122.36749999999999,37.6175 ] ] ] } } ] }","edition":"Online version 1.1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db65545d","contributors":{"authors":[{"text":"Pike, R.J.","contributorId":72814,"corporation":false,"usgs":true,"family":"Pike","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":265742,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Graymer, R. W.","contributorId":21174,"corporation":false,"usgs":true,"family":"Graymer","given":"R. W.","affiliations":[],"preferred":false,"id":265740,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roberts, Sebastian","contributorId":52209,"corporation":false,"usgs":true,"family":"Roberts","given":"Sebastian","email":"","affiliations":[],"preferred":false,"id":265741,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kalman, N.B.","contributorId":8171,"corporation":false,"usgs":true,"family":"Kalman","given":"N.B.","email":"","affiliations":[],"preferred":false,"id":265739,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sobieszczyk, Steven 0000-0002-0834-8437 ssobie@usgs.gov","orcid":"https://orcid.org/0000-0002-0834-8437","contributorId":885,"corporation":false,"usgs":true,"family":"Sobieszczyk","given":"Steven","email":"ssobie@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":265738,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":61467,"text":"mf2356 - 2001 - Geologic map of the Jasper Quadrangle, Newton and Boone counties, Arkansas","interactions":[],"lastModifiedDate":"2017-03-02T16:03:06","indexId":"mf2356","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2356","title":"Geologic map of the Jasper Quadrangle, Newton and Boone counties, Arkansas","docAbstract":"This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, and structure contour), and point (i.e., structural attitude, contact elevations) vector data for the Jasper 7 1/2' quadrangle in northern Arkansas. The map database, which is at 1:24,000-scale resolution, provides geologic coverage of an area of current hydrogeologic, tectonic, and stratigraphic interest. The Jasper quadrangle is located in northern Newton and southern Boone Counties about 20 km south of the town of Harrison. The map area is underlain by sedimentary rocks of Ordovician, Mississippian, and Pennsylvanian age that were mildly deformed by a series of normal and strike-slip faults and folds. The area is representative of the stratigraphic and structural setting of the southern Ozark Dome. The Jasper quadrangle map provides new geologic information for better understanding groundwater flow paths in and adjacent to the Buffalo River watershed.","language":"English","doi":"10.3133/mf2356","usgsCitation":"Hudson, M., Murray, K., and Pezzutti, D., 2001, Geologic map of the Jasper Quadrangle, Newton and Boone counties, Arkansas: U.S. Geological Survey Miscellaneous Field Studies Map 2356, 1 sheet, https://doi.org/10.3133/mf2356.","productDescription":"1 sheet","costCenters":[],"links":[{"id":182686,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6038,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2356/","linkFileType":{"id":5,"text":"html"}},{"id":110215,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_43710.htm","linkFileType":{"id":5,"text":"html"},"description":"43710"}],"scale":"24000","country":"United States","state":"Arkansas","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -93.11749999999999,36 ], [ -93.11749999999999,36.1175 ], [ 0,36.1175 ], [ 0,36 ], [ -93.11749999999999,36 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696f12","contributors":{"authors":[{"text":"Hudson, M.R.","contributorId":68317,"corporation":false,"usgs":true,"family":"Hudson","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":265709,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murray, K.E.","contributorId":68595,"corporation":false,"usgs":true,"family":"Murray","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":265710,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pezzutti, Deborah","contributorId":94545,"corporation":false,"usgs":true,"family":"Pezzutti","given":"Deborah","email":"","affiliations":[],"preferred":false,"id":265711,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":61489,"text":"mf2381C - 2001 - Isostatic gravity map of the Death Valley ground-water model area, Nevada and California","interactions":[],"lastModifiedDate":"2017-02-21T10:20:14","indexId":"mf2381C","displayToPublicDate":"2001-12-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2381","chapter":"C","title":"Isostatic gravity map of the Death Valley ground-water model area, Nevada and California","docAbstract":"An isostatic gravity map of the Death Valley groundwater model area was prepared from over 40,0000 gravity stations as part of an interagency effort by the U.S. Geological Survey and the U.S. Department of Energy to help characterize the geology and hydrology of southwest Nevada and parts of California.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf2381C","usgsCitation":"Ponce, D., Blakely, R., Morin, R.L., and Mankinen, E., 2001, Isostatic gravity map of the Death Valley ground-water model area, Nevada and California: U.S. Geological Survey Miscellaneous Field Studies Map 2381, Sheet 48 by 64 inches (in color). (Accompanied by 6 page text.), https://doi.org/10.3133/mf2381C.","productDescription":"Sheet 48 by 64 inches (in color). (Accompanied by 6 page text.)","costCenters":[],"links":[{"id":187065,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6052,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2381/","linkFileType":{"id":5,"text":"html"}}],"scale":"250000","country":"United States","state":"California, Nevada","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118,35 ], [ -118,38.25 ], [ -115,38.25 ], [ -115,35 ], [ -118,35 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa7e4b07f02db667076","contributors":{"authors":[{"text":"Ponce, D. A. 0000-0003-4785-7354","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":104019,"corporation":false,"usgs":true,"family":"Ponce","given":"D. A.","affiliations":[],"preferred":false,"id":265799,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blakely, R.J. 0000-0003-1701-5236","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":70755,"corporation":false,"usgs":true,"family":"Blakely","given":"R.J.","affiliations":[],"preferred":false,"id":265797,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morin, R. L.","contributorId":95484,"corporation":false,"usgs":true,"family":"Morin","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265798,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"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":265796,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":61488,"text":"mf2379 - 2001 - Seismic Landslide Hazard for the Cities of Oakland and Piedmont, California","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2379","displayToPublicDate":"2001-12-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2379","title":"Seismic Landslide Hazard for the Cities of Oakland and Piedmont, California","docAbstract":"This map describes the possible hazard from earthquake-induced landslides for the cities of Oakland and Piedmont, CA. The hazard depicted by this map was modeled for a scenario corresponding to an M=7.1 earthquake on the Hayward, CA fault. This scenario magnitude is associated with complete rupture of the northern and southern segments of the Hayward fault, an event that has an\r\nestimated return period of about 500 years. The modeled hazard also corresponds\r\nto completely saturated ground-water conditions resulting from an extreme storm\r\nevent or series of storm events. This combination of earthquake and\r\nground-water scenarios represents a particularly severe state of hazard for\r\nearthquake-induced landslides. For dry ground-water conditions, overall hazard\r\nwill be less, while relative patterns of hazard are likely to change.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2379","usgsCitation":"Miles, S.B., and Keefer, D.K., 2001, Seismic Landslide Hazard for the Cities of Oakland and Piedmont, California: U.S. Geological Survey Miscellaneous Field Studies Map 2379, Map: 35 x 43 inches; Pamphlet: 6 p.; Digital Database; ReadMe; Metadata, https://doi.org/10.3133/mf2379.","productDescription":"Map: 35 x 43 inches; Pamphlet: 6 p.; Digital Database; ReadMe; Metadata","additionalOnlineFiles":"Y","costCenters":[{"id":648,"text":"Western Earthquake Hazards","active":false,"usgs":true}],"links":[{"id":110224,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_44846.htm","linkFileType":{"id":5,"text":"html"},"description":"44846"},{"id":9554,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2379/","linkFileType":{"id":5,"text":"html"}},{"id":187064,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.3,37.7 ], [ -122.3,37.85 ], [ -122.15,37.85 ], [ -122.15,37.7 ], [ -122.3,37.7 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f7e4b07f02db5f1f0a","contributors":{"authors":[{"text":"Miles, Scott B.","contributorId":38600,"corporation":false,"usgs":true,"family":"Miles","given":"Scott","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":265794,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Keefer, David K.","contributorId":77930,"corporation":false,"usgs":true,"family":"Keefer","given":"David","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":265795,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61491,"text":"mf2381E - 2001 - Map showing depth to pre-Cenozoic basement in the Death Valley ground-water model area, Nevada and California","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2381E","displayToPublicDate":"2001-12-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2381","chapter":"E","title":"Map showing depth to pre-Cenozoic basement in the Death Valley ground-water model area, Nevada and California","docAbstract":"A depth to basement map of the Death Valley groundwater model area was prepared using over 40,0000 gravity stations as part of an interagency effort by the U.S. Geological Survey and the U.S. Department of Energy to help characterize the geology and hydrology of southwest Nevada and parts of California.","language":"ENGLISH","doi":"10.3133/mf2381E","usgsCitation":"Blakely, R., and Ponce, D., 2001, Map showing depth to pre-Cenozoic basement in the Death Valley ground-water model area, Nevada and California: U.S. Geological Survey Miscellaneous Field Studies Map 2381, Sheet 48 by 64 inches (in color). (Accompanied by 6 page text.) , https://doi.org/10.3133/mf2381E.","productDescription":"Sheet 48 by 64 inches (in color). (Accompanied by 6 page text.) ","costCenters":[],"links":[{"id":110227,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_45090.htm","linkFileType":{"id":5,"text":"html"},"description":"45090"},{"id":187067,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6054,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2381/","linkFileType":{"id":5,"text":"html"}}],"scale":"250000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118,35 ], [ -118,38.25 ], [ -115,38.25 ], [ -115,35 ], [ -118,35 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9fe4b07f02db660db6","contributors":{"authors":[{"text":"Blakely, R.J. 0000-0003-1701-5236","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":70755,"corporation":false,"usgs":true,"family":"Blakely","given":"R.J.","affiliations":[],"preferred":false,"id":265802,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ponce, D. A. 0000-0003-4785-7354","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":104019,"corporation":false,"usgs":true,"family":"Ponce","given":"D. A.","affiliations":[],"preferred":false,"id":265803,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61490,"text":"mf2381D - 2001 - Aeromagnetic map of the Death Valley ground-water model area, Nevada and California","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2381D","displayToPublicDate":"2001-12-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2381","chapter":"D","title":"Aeromagnetic map of the Death Valley ground-water model area, Nevada and California","language":"ENGLISH","doi":"10.3133/mf2381D","usgsCitation":"Ponce, D., and Blakely, R., 2001, Aeromagnetic map of the Death Valley ground-water model area, Nevada and California: U.S. Geological Survey Miscellaneous Field Studies Map 2381, Sheet 48 by 64 inches (in color). (Accompanied by 5 page text.) , https://doi.org/10.3133/mf2381D.","productDescription":"Sheet 48 by 64 inches (in color). (Accompanied by 5 page text.) ","costCenters":[],"links":[{"id":110226,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_45089.htm","linkFileType":{"id":5,"text":"html"},"description":"45089"},{"id":187066,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6053,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2381/","linkFileType":{"id":5,"text":"html"}}],"scale":"250000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118,35 ], [ -118,38.25 ], [ -115,38.25 ], [ -115,35 ], [ -118,35 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696b11","contributors":{"authors":[{"text":"Ponce, D. A. 0000-0003-4785-7354","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":104019,"corporation":false,"usgs":true,"family":"Ponce","given":"D. A.","affiliations":[],"preferred":false,"id":265801,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blakely, R.J. 0000-0003-1701-5236","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":70755,"corporation":false,"usgs":true,"family":"Blakely","given":"R.J.","affiliations":[],"preferred":false,"id":265800,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61487,"text":"mf2378 - 2001 - Seismic Landslide Hazard for the City of Berkeley, California","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2378","displayToPublicDate":"2001-12-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2378","title":"Seismic Landslide Hazard for the City of Berkeley, California","docAbstract":"This map describes the possible hazard from earthquake-induced\r\nlandslides for the city of Berkeley, CA. The hazard depicted by this map was\r\nmodeled for a scenario corresponding to an M=7.1 earthquake on the Hayward, CA\r\nfault. This scenario magnitude is associated with complete rupture of the\r\nnorthern and southern segments of the Hayward fault, an event that has an\r\nestimated return period of about 500 years. The modeled hazard also corresponds\r\nto completely saturated ground-water conditions resulting from an extreme storm\r\nevent or series of storm events. This combination of earthquake and\r\nground-water scenarios represents a particularly severe state of hazard for\r\nearthquake-induced landslides. For dry ground-water conditions, overall hazard\r\nwill be less, while relative patterns of hazard are likely to change.\r\n Purpose: The map is intended as a tool for regional planning. Any\r\nsite-specific planning or analysis should be undertaken with the assistance of a\r\nqualified geotechnical engineer. This hazard map should not be used as a\r\nsubstitute to the State of California Seismic Hazard Zones map for the same\r\narea. (See California Department of Conservation, Division of Mines and\r\nGeology, 1999). As previously noted for maps of this type by Wieczorek and\r\nothers (1985), this map should not be used as a basis to determine the absolute\r\nrisk from seismically triggered landslides at any locality, as the sole\r\njustification for zoning or rezoning any parcel, for detailed design of any\r\nlifeline, for site-specific hazard-reduction planning, or for setting or\r\nmodifying insurance rates.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2378","usgsCitation":"Miles, S.B., and Keefer, D.K., 2001, Seismic Landslide Hazard for the City of Berkeley, California: U.S. Geological Survey Miscellaneous Field Studies Map 2378, Map: 22 x 30 inches; Pamphlet: 6 p.; Digital Database; ReadMe; Metadata, https://doi.org/10.3133/mf2378.","productDescription":"Map: 22 x 30 inches; Pamphlet: 6 p.; Digital Database; ReadMe; Metadata","additionalOnlineFiles":"Y","costCenters":[{"id":648,"text":"Western Earthquake Hazards","active":false,"usgs":true}],"links":[{"id":110223,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_44845.htm","linkFileType":{"id":5,"text":"html"},"description":"44845"},{"id":187014,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9555,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2378/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.3,37.85 ], [ -122.3,37.9 ], [ -122.25,37.9 ], [ -122.25,37.85 ], [ -122.3,37.85 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fae92","contributors":{"authors":[{"text":"Miles, Scott B.","contributorId":38600,"corporation":false,"usgs":true,"family":"Miles","given":"Scott","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":265792,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Keefer, David K.","contributorId":77930,"corporation":false,"usgs":true,"family":"Keefer","given":"David","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":265793,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61485,"text":"mf2370 - 2001 - Interpretive geologic cross sections for the Death Valley regional flow system and surrounding areas, Nevada and California","interactions":[],"lastModifiedDate":"2018-02-21T17:45:47","indexId":"mf2370","displayToPublicDate":"2001-11-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2370","title":"Interpretive geologic cross sections for the Death Valley regional flow system and surrounding areas, Nevada and California","docAbstract":"This report presents a network of 28 geologic cross sections that portray subsurface geologic relations within the Death Valley regional ground-water system, a ground-water basin that encompasses a 3? x 3? area (approximately 70,000 km2) in southern Nevada and eastern California. The cross sections transect that part of the southern Great Basin that includes Death Valley, the Nevada Test Site, and the potential high-level nuclear waste underground repository at Yucca Mountain. The specific geometric relationships portrayed on the cross sections are discussed in the context of four general sub-regions that have stratigraphic similarities and general consistency of structural style: (1) the Nevada Test Site vicinity; (2) the Spring Mountains, Pahrump Valley and Amargosa Desert region; (3) the Death Valley region; and (4) the area east of the Nevada Test Site. \r\nThe subsurface geologic interpretations portrayed on the cross sections are based on an integration of existing geologic maps, measured stratigraphic sections, published cross sections, well data, and geophysical data and interpretations. The estimated top of pre-Cenozoic rocks in the cross sections is based on inversion of gravity data, but the deeper parts of the sections are based on geologic conceptual models and are more speculative. \r\nThe region transected by the cross sections includes part of the southern Basin and Range Province, the northwest-trending Walker Lane belt, the Death Valley region, and the northern Mojave Desert. The region is structurally complex, where a locally thick Tertiary volcanic and sedimentary section unconformably overlies previously deformed Proterozoic through Paleozoic rocks. All of these rocks have been deformed by complex Neogene ex-tensional normal and strike-slip faults. These cross sections form a three-dimensional network that portrays the interpreted stratigraphic and structural relations in the region; the sections form part of the geologic framework that will be incorporated in a complex numerical model of ground-water flow in the Death Valley region.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2370","usgsCitation":"Sweetkind, D.S., Dickerson, R., Blakely, R., and Denning, P., 2001, Interpretive geologic cross sections for the Death Valley regional flow system and surrounding areas, Nevada and California: U.S. Geological Survey Miscellaneous Field Studies Map 2370, Three sheets: Sheet 1, 60 by 36 inches; sheet 2, 84 by 36 inches; sheet 3, 71 by 36 inches (all in color). Sheet 1, scale 1:750,000 and 1:1,500,000; sheet 2 and 3, scale 1:100,000 and 1:250,000 and 1:1,500,000; Accompanied by 35 p. text., https://doi.org/10.3133/mf2370.","productDescription":"Three sheets: Sheet 1, 60 by 36 inches; sheet 2, 84 by 36 inches; sheet 3, 71 by 36 inches (all in color). Sheet 1, scale 1:750,000 and 1:1,500,000; sheet 2 and 3, scale 1:100,000 and 1:250,000 and 1:1,500,000; Accompanied by 35 p. text.","costCenters":[],"links":[{"id":186978,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110217,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_44623.htm","linkFileType":{"id":5,"text":"html"},"description":"44623"},{"id":6050,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2370/","linkFileType":{"id":5,"text":"html"}}],"scale":"0","country":"United States","state":"California, Nevada","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118,35 ], [ -118,38 ], [ -115,38 ], [ -115,35 ], [ -118,35 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48b2e4b07f02db530ce7","contributors":{"authors":[{"text":"Sweetkind, D. S.","contributorId":61507,"corporation":false,"usgs":true,"family":"Sweetkind","given":"D.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":265789,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dickerson, R. P.","contributorId":23968,"corporation":false,"usgs":true,"family":"Dickerson","given":"R. P.","affiliations":[],"preferred":false,"id":265787,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blakely, R.J. 0000-0003-1701-5236","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":70755,"corporation":false,"usgs":true,"family":"Blakely","given":"R.J.","affiliations":[],"preferred":false,"id":265790,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Denning, Paul pdenning@usgs.gov","contributorId":168842,"corporation":false,"usgs":true,"family":"Denning","given":"Paul","email":"pdenning@usgs.gov","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":265788,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":61477,"text":"mf2327B - 2001 - Map of steep structures in part of the southern Toquima Range and adjacent areas, Nye County, Nevada","interactions":[],"lastModifiedDate":"2017-02-28T15:25:03","indexId":"mf2327B","displayToPublicDate":"2001-10-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2327","chapter":"B","title":"Map of steep structures in part of the southern Toquima Range and adjacent areas, Nye County, Nevada","docAbstract":"

No abstract available.

","language":"English","doi":"10.3133/mf2327B","usgsCitation":"Shawe, D.R., 2001, Map of steep structures in part of the southern Toquima Range and adjacent areas, Nye County, Nevada: U.S. Geological Survey Miscellaneous Field Studies Map 2327, 10 p., https://doi.org/10.3133/mf2327B.","productDescription":"10 p.","costCenters":[],"links":[{"id":180490,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6046,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2327-b/","linkFileType":{"id":5,"text":"html"}},{"id":110212,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_43499.htm","linkFileType":{"id":5,"text":"html"},"description":"43499"}],"scale":"48000","country":"United States","state":"Nevada","county":"Nye","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.11749999999999,38.5 ], [ -117.11749999999999,38.75 ], [ -116.75,38.75 ], [ -116.75,38.5 ], [ -117.11749999999999,38.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a93e4b07f02db65826e","contributors":{"authors":[{"text":"Shawe, D. R.","contributorId":6863,"corporation":false,"usgs":true,"family":"Shawe","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":265752,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":61478,"text":"mf2353 - 2001 - Geologic maps and cross sections of mine levels at the Pea Ridge iron mine, Washington County, Missouri","interactions":[],"lastModifiedDate":"2017-03-02T16:00:26","indexId":"mf2353","displayToPublicDate":"2001-10-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2353","title":"Geologic maps and cross sections of mine levels at the Pea Ridge iron mine, Washington County, Missouri","docAbstract":"

This geologic mapping and interpretation of the Pea Ridge iron mine, Missouri, is part of a cooperative effort between the U.S. Geological Survey (USGS) and the Missouri Department of Natural Resources, Division of Geology and Land Survey (DGLS), under the auspices of the USGS Midcontinent Strategic and Critical Minerals Project. The goal of the Pea Ridge study is to compare the Middle Proterozoic iron deposits of Missouri with the Middle Proterozoic Olympic Dam deposit and similar deposits of the Stuart Shelf, South Australia. This effort developed from work by Sims and others (1987), who recognized the many similarities between the St. Francois terrane in southeastern Missouri and the Stuart Shelf and also the potential for Olympic Dam-type deposits in the Middle Proterozoic granite-rhyolite terranes of the Midcontinent. Detailed descriptions of the map units are given in Nuelle and others (1992). Results of stable-isotope, fluid-inclusion, and traceelement studies that focus on the origin of the ore deposit are presented in Day and others (1991, 1992, and 1993), Sidder and others (1991, 1993a, b), and Cordell and others (1993).

","language":"English","doi":"10.3133/mf2353","usgsCitation":"Seeger, C., Nuelle, L.M., Sidder, G., Marikos, M., and Smith, D.C., 2001, Geologic maps and cross sections of mine levels at the Pea Ridge iron mine, Washington County, Missouri: U.S. Geological Survey Miscellaneous Field Studies Map 2353, 5 sheets, https://doi.org/10.3133/mf2353.","productDescription":"5 sheets","costCenters":[],"links":[{"id":186818,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6047,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2353/","linkFileType":{"id":5,"text":"html"}},{"id":110178,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_37357.htm","linkFileType":{"id":5,"text":"html"},"description":"37357"}],"scale":"24000","country":"United States","state":"Missouri","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -91.05055555555555,38.11694444444444 ], [ -91.05055555555555,38.13361111111111 ], [ -91.03333333333333,38.13361111111111 ], [ -91.03333333333333,38.11694444444444 ], [ -91.05055555555555,38.11694444444444 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db688642","contributors":{"authors":[{"text":"Seeger, C.M.","contributorId":55484,"corporation":false,"usgs":true,"family":"Seeger","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":265756,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nuelle, L. M.","contributorId":21638,"corporation":false,"usgs":true,"family":"Nuelle","given":"L.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":265754,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sidder, G.B.","contributorId":89150,"corporation":false,"usgs":true,"family":"Sidder","given":"G.B.","affiliations":[],"preferred":false,"id":265757,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marikos, M.A.","contributorId":13317,"corporation":false,"usgs":true,"family":"Marikos","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":265753,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, D. C. davidsmith@usgs.gov","contributorId":31057,"corporation":false,"usgs":true,"family":"Smith","given":"D.","email":"davidsmith@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":false,"id":265755,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":61486,"text":"mf2371 - 2001 - Geologic map of the Silver Lake Quadrangle, Cowlitz County, Washington","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2371","displayToPublicDate":"2001-08-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2371","title":"Geologic map of the Silver Lake Quadrangle, Cowlitz County, Washington","docAbstract":"This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits of the Silver lake 7.5 minute quadrangle. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller.","language":"ENGLISH","doi":"10.3133/mf2371","usgsCitation":"Evarts, R., 2001, Geologic map of the Silver Lake Quadrangle, Cowlitz County, Washington: U.S. Geological Survey Miscellaneous Field Studies Map 2371, 37 p. and 1 sheet, https://doi.org/10.3133/mf2371.","productDescription":"37 p. and 1 sheet","costCenters":[],"links":[{"id":110206,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_42703.htm","linkFileType":{"id":5,"text":"html"},"description":"42703"},{"id":187013,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6051,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2371/","linkFileType":{"id":5,"text":"html"}}],"scale":"0","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.86749999999999,46.25 ], [ -122.86749999999999,46.3675 ], [ -122.75,46.3675 ], [ -122.75,46.25 ], [ -122.86749999999999,46.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a31e","contributors":{"authors":[{"text":"Evarts, R.C.","contributorId":74766,"corporation":false,"usgs":true,"family":"Evarts","given":"R.C.","affiliations":[],"preferred":false,"id":265791,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":61483,"text":"mf2367 - 2001 - Geologic Map of the House Rock Spring Quadrangle, Coconino County, Northern Arizona","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2367","displayToPublicDate":"2001-07-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2367","title":"Geologic Map of the House Rock Spring Quadrangle, Coconino County, Northern Arizona","docAbstract":"This digital map database is compiled from unpublished data and new mapping by the authors, represents the general distribution of surficial and bedrock geology in the mapped area. Together with the accompanying pamphlet, it provides current information on the geologic structure and stratigraphy of the area. The database delineate map units that are identified by age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution of the database to 1:24,000 or smaller.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2367","usgsCitation":"Billingsley, G.H., and Hampton, H.M., 2001, Geologic Map of the House Rock Spring Quadrangle, Coconino County, Northern Arizona (Online Version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2367, Map Sheet: 30 x 30 inches; Pamphlet: 17 p.; Digital Database; ReadMe; Metadata, https://doi.org/10.3133/mf2367.","productDescription":"Map Sheet: 30 x 30 inches; Pamphlet: 17 p.; Digital Database; ReadMe; Metadata","additionalOnlineFiles":"Y","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":110189,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_40455.htm","linkFileType":{"id":5,"text":"html"},"description":"40455"},{"id":186976,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9556,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2367/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.11749999999999,36.75 ], [ -112.11749999999999,36.8675 ], [ -112,36.8675 ], [ -112,36.75 ], [ -112.11749999999999,36.75 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a84d1","contributors":{"authors":[{"text":"Billingsley, George H.","contributorId":20711,"corporation":false,"usgs":true,"family":"Billingsley","given":"George","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":265781,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hampton, Haydee M.","contributorId":38228,"corporation":false,"usgs":true,"family":"Hampton","given":"Haydee","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":265782,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61484,"text":"mf2368 - 2001 - Geologic Map of Part of the Uinkaret Volcanic Field, Mohave County, Northwestern Arizona","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2368","displayToPublicDate":"2001-07-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2368","title":"Geologic Map of Part of the Uinkaret Volcanic Field, Mohave County, Northwestern Arizona","docAbstract":"The geologic map of part of the Uinkaret Volcanic Field is one product of a cooperative project between the\r\nU.S. Geological Survey, the National Park Service, and the Bureau of Land Management to provide geologic\r\ninformation about this part of the Grand Canyon-Parashant Canyon National Monument of Arizona. The Uinkaret\r\nVolcanic Field is a unique part of western Grand Canyon where volcanic rocks have preserved the geomorphic\r\ndevelopment of the landscape. Most of the Grand Canyon, and parts of adjacent plateaus have already been mapped.\r\nThis map completes one of the remaining areas where uniform quality geologic mapping was needed. A few dozen\r\nvolcanoes and lava flows within the Grand Canyon are not included in the map area, but their geologic significance to\r\nGrand Canyon development is documented by Hamblin (1994) and mapped by Billingsley and Huntoon (1983) and\r\nWenrich and others (1997). The geologic information in this report may be useful to resource managers of the Bureau\r\nof Land Management for range management, biological, archaeological, and flood control programs.\r\nThe map area lies within the Shivwits, Uinkaret, and Kanab Plateaus, which are subplateaus of the Colorado\r\nPlateaus physiographic province (Billingsley and others, 1997), and is part of the Arizona Strip north of the Colorado\r\nRiver. The nearest settlement is Colorado City, Arizona, about 58 km (36 mi) north of the map area (fig. 1). Elevations\r\nrange from about 2,447 m (8,029 ft) at Mount Trumbull, in the northwest quarter of the map area, to about 732 m (2,400\r\nft) in Cove Canyon, in the southeast quarter of the map area. Vehicle access is via the Toroweap and Mount Trumbull\r\ndirt roads (fig. 1). Unimproved dirt roads traverse other parts of the area except in designated wilderness. Extra fuel,\r\ntwo spare tires, and extra food and water are highly recommended for travelers in this remote area.\r\nThe U.S. Bureau of Land Management, Arizona Strip Field Office, St. George, Utah manages most of the area.\r\nIn addition, there are 12 sections belonging to the State of Arizona, about 12 sections are private land, and several\r\nsections are within the Grand Canyon National Park and Lake Mead National Recreational Area (U.S. Department of\r\nthe Interior, 1993). The private land is in Potato Valley and Lake Valley, southwest and west of Mount Trumbull, and\r\nin Whitmore Canyon and Toroweap (Tuweap) Valley. Portions of the Sawmill Mountains, Mount Logan, and Mount\r\nTrumbull areas were originally established as part of the Dixie National Forest in 1904. In 1924, Dixie National Forest\r\nland became part of the Kaibab National Forest. Then on February 13, 1974, management of this part of the Kaibab\r\nNational Forest was transferred to the Bureau of Land Management, Arizona Strip Field Office (personal commun.\r\nBecky Hammond, Bureau of Land Management, 1997). Mount Logan and part of the Sawmill Mountains are now\r\ndesignated as the Mount Logan Wilderness Area, and Mount Trumbull is designated as the Mount Trumbull Wilderness\r\nArea. Most of the map area is now part of the new Grand Canyon-Parashant Canyon National Monument established\r\nJanuary 11, 2000.\r\nLower elevations within Hells Hollow, Whitmore Canyon, Toroweap Valley, and Cove Canyon support a\r\nsparse growth of sagebrush, cactus, grass, and a variety of desert shrubs. Sagebrush, grass, cactus, cliffrose bush, pinion\r\npine, and juniper trees thrive at elevations above 1,830 m (6,000 ft). Ponderosa pine and oak forests thrive at higher\r\nelevations in the Mount Trumbull and Mount Logan areas.\r\nSurface runoff within the map area drains south towards the Colorado River through Hells Hole, Hollow,\r\nWhitmore Canyon, Toroweap Valley, and Cove Canyon. Upper Toroweap Valley, upper Hells Hollow, and Whitmore\r\nCanyon are part of the physiographic area of Grand Canyon, but are not within Grand Canyon National Park\r\n(Billingsley and others, 1997). As of January 11, 2000, these areas are now part of the new Grand Canyon-Parashant","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2368","usgsCitation":"Billingsley, G.H., Hamblin, W.K., Wellmeyer, J.L., and Dudash, S.L., 2001, Geologic Map of Part of the Uinkaret Volcanic Field, Mohave County, Northwestern Arizona (Online Version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2368, Pamphlet: 34 p.; Map Sheet: 32 x 56.5 inches; Digital Files for Viewing and Plotting; Data Files, https://doi.org/10.3133/mf2368.","productDescription":"Pamphlet: 34 p.; Map Sheet: 32 x 56.5 inches; Digital Files for Viewing and Plotting; Data Files","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":110197,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_42118.htm","linkFileType":{"id":5,"text":"html"},"description":"42118"},{"id":186977,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8205,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2368/","linkFileType":{"id":5,"text":"html"}}],"scale":"1","projection":"Universal Transverse Mercator","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -113.25,36.25 ], [ -113.25,36.5 ], [ -113,36.5 ], [ -113,36.25 ], [ -113.25,36.25 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a864b","contributors":{"authors":[{"text":"Billingsley, George H.","contributorId":20711,"corporation":false,"usgs":true,"family":"Billingsley","given":"George","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":265784,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hamblin, W. Kenneth","contributorId":69011,"corporation":false,"usgs":true,"family":"Hamblin","given":"W.","email":"","middleInitial":"Kenneth","affiliations":[],"preferred":false,"id":265785,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wellmeyer, Jessica L.","contributorId":8177,"corporation":false,"usgs":true,"family":"Wellmeyer","given":"Jessica","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265783,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dudash, Stephanie L.","contributorId":90839,"corporation":false,"usgs":true,"family":"Dudash","given":"Stephanie","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265786,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":61481,"text":"mf2364 - 2001 - Geologic Map of the House Rock Quadrangle, Coconino County, Northern Arizona","interactions":[],"lastModifiedDate":"2012-02-10T00:10:50","indexId":"mf2364","displayToPublicDate":"2001-07-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2364","title":"Geologic Map of the House Rock Quadrangle, Coconino County, Northern Arizona","docAbstract":"This digital map database is compiled from unpublished data and new mapping by the authors, represents the general distribution of surficial and bedrock geology in the mapped area. Together with the accompanying pamphlet, it provides current information on the geologic structure and stratigraphy of the area. The database dilineate map units that are identified by age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution of the database to 1:24,000 or smaller.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2364","usgsCitation":"Billingsley, G.H., Wellmeyer, J.L., and Block, D., 2001, Geologic Map of the House Rock Quadrangle, Coconino County, Northern Arizona (Online Version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2364, Map Sheet: 29 x 30 inches; Pamphlet: 17 p.; Digital Database; ReadMe; Metadata, https://doi.org/10.3133/mf2364.","productDescription":"Map Sheet: 29 x 30 inches; Pamphlet: 17 p.; Digital Database; ReadMe; Metadata","additionalOnlineFiles":"Y","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":110200,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_42272.htm","linkFileType":{"id":5,"text":"html"},"description":"42272"},{"id":9558,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2364/","linkFileType":{"id":5,"text":"html"}},{"id":186821,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.11749999999999,36.6175 ], [ -112.11749999999999,36.75 ], [ -112,36.75 ], [ -112,36.6175 ], [ -112.11749999999999,36.6175 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a84e9","contributors":{"authors":[{"text":"Billingsley, George H.","contributorId":20711,"corporation":false,"usgs":true,"family":"Billingsley","given":"George","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":265777,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wellmeyer, Jessica L.","contributorId":8177,"corporation":false,"usgs":true,"family":"Wellmeyer","given":"Jessica","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265776,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Block, Debra L.","contributorId":66351,"corporation":false,"usgs":true,"family":"Block","given":"Debra L.","affiliations":[],"preferred":false,"id":265778,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":61482,"text":"mf2366 - 2001 - Geologic Map of the Cane Quadrangle, Coconino County, Northern Arizona","interactions":[],"lastModifiedDate":"2012-02-10T00:10:49","indexId":"mf2366","displayToPublicDate":"2001-07-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2366","title":"Geologic Map of the Cane Quadrangle, Coconino County, Northern Arizona","docAbstract":"This digital map database is compiled from unpublished data and new mapping by the authors, represents the general distribution of surficial and bedrock geology in the mapped area. Together with the accompanying pamphlet, it provides current information on the geologic structure and stratigraphy of the area. The database delineate map units that are identified by age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution of the database to 1:24,000 or smaller.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2366","usgsCitation":"Billingsley, G.H., and Wellmeyer, J.L., 2001, Geologic Map of the Cane Quadrangle, Coconino County, Northern Arizona (Online Version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2366, Map Sheet: 32 x 32 inches; Pamphlet: 14 p.; Digital Database; ReadMe; Metadata, https://doi.org/10.3133/mf2366.","productDescription":"Map Sheet: 32 x 32 inches; Pamphlet: 14 p.; Digital Database; ReadMe; Metadata","additionalOnlineFiles":"Y","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":110190,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_40456.htm","linkFileType":{"id":5,"text":"html"},"description":"40456"},{"id":186779,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9557,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2366/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.11749999999999,36.5 ], [ -112.11749999999999,36.6175 ], [ -112,36.6175 ], [ -112,36.5 ], [ -112.11749999999999,36.5 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a855d","contributors":{"authors":[{"text":"Billingsley, George H.","contributorId":20711,"corporation":false,"usgs":true,"family":"Billingsley","given":"George","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":265780,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wellmeyer, Jessica L.","contributorId":8177,"corporation":false,"usgs":true,"family":"Wellmeyer","given":"Jessica","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265779,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61480,"text":"mf2362 - 2001 - Map of normal faults and extensional folds in the Tendoy Mountains and Beaverhead Range, Southwest Montana and eastern Idaho","interactions":[],"lastModifiedDate":"2017-03-07T08:57:42","indexId":"mf2362","displayToPublicDate":"2001-06-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2362","title":"Map of normal faults and extensional folds in the Tendoy Mountains and Beaverhead Range, Southwest Montana and eastern Idaho","docAbstract":"

Compilation of a 1:100,000-scale map of normal faults and extensional folds in southwest Montana and adjacent Idaho reveals a complex history of normal faulting that spanned at least the last 50 m.y. and involved six or more generations of normal faults. The map is based on both published and unpublished mapping and shows normal faults and extensional folds between the valley of the Red Rock River of southwest Montana and the Lemhi and Birch Creek valleys of eastern Idaho between latitudes 45°05' N. and 44°15' N. in the Tendoy and Beaverhead Mountains. Some of the unpublished mapping has been compiled in Lonn and others (2000). Many traces of the normal faults parallel the generally northwest to north-northwest structural grain of the preexisting Sevier fold and thrust belt and dip west-southwest, but northeastand east-striking normal faults are also prominent. Northeaststriking normal faults are subparallel to the traces of southeast-directed thrusts that shortened the foreland during the Laramide orogeny. It is unlikely that the northeast-striking normal faults reactivated fabrics in the underlying Precambrian basement, as has been documented elsewhere in southwestern Montana (Schmidt and others, 1984), because exposures of basement rocks in the map area exhibit north-northwest- to northwest-striking deformational fabrics (Lowell, 1965; M’Gonigle, 1993, 1994; M’Gonigle and Hait, 1997; M’Gonigle and others, 1991). The largest normal faults in the area are southwest-dipping normal faults that locally reactivate thrust faults (fig. 1). Normal faulting began before middle Eocene Challis volcanism and continues today. The extension direction flipped by about 90° four times.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2362","usgsCitation":"Janecke, S.U., Blankenau, J., VanDenburg, C., and VanGosen, B., 2001, Map of normal faults and extensional folds in the Tendoy Mountains and Beaverhead Range, Southwest Montana and eastern Idaho: U.S. Geological Survey Miscellaneous Field Studies Map 2362, Sheet 63.5 by 46.5 inches (in color)., https://doi.org/10.3133/mf2362.","productDescription":"Sheet 63.5 by 46.5 inches (in color).","costCenters":[],"links":[{"id":186820,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6049,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2362/","linkFileType":{"id":5,"text":"html"}},{"id":110187,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_39682.htm","linkFileType":{"id":5,"text":"html"},"description":"39682"}],"scale":"0","country":"United States","state":"Idaho, Montana","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -113.75,44.25 ], [ -113.75,45.083333333333336 ], [ -112.5,45.083333333333336 ], [ -112.5,44.25 ], [ -113.75,44.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a93e4b07f02db657f53","contributors":{"authors":[{"text":"Janecke, S. U.","contributorId":42296,"corporation":false,"usgs":true,"family":"Janecke","given":"S.","email":"","middleInitial":"U.","affiliations":[],"preferred":false,"id":265772,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blankenau, J.J.","contributorId":70855,"corporation":false,"usgs":true,"family":"Blankenau","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":265774,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"VanDenburg, C.J.","contributorId":103742,"corporation":false,"usgs":true,"family":"VanDenburg","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":265775,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"VanGosen, B.S.","contributorId":66714,"corporation":false,"usgs":true,"family":"VanGosen","given":"B.S.","affiliations":[],"preferred":false,"id":265773,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":61479,"text":"mf2357 - 2001 - Arsenic in stream sediments of northern Alabama","interactions":[],"lastModifiedDate":"2017-03-02T16:15:05","indexId":"mf2357","displayToPublicDate":"2001-06-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2357","title":"Arsenic in stream sediments of northern Alabama","docAbstract":"

OVERVIEW OF ARSENIC IN STREAM SEDIMENTS The overall range of arsenic in the NURE stream sediments was from 0.3 to 44 mg/kg sediment (ppm) As in the sample data set. The mean value was 4.3 ppm with a standard deviation of 4.1 ppm. For comparison, the crustal abundance of arsenic is 1.8 ppm (Taylor, 1964). Shale is higher, with average values of 15 ppm. Coal samples from the entire USGS National Coal Resource Data System coal database (Finkelman, 1994) average 24 ppm arsenic. A study of stream sediments from throughout the U.S. by the USGS NAWQA program reported that the 75th percentile for arsenic in 541 stream sediments was 9.5 ppm (Rice, 1999). Given the relatively low crustal abundance of arsenic, a number of stream-sediment samples in this study may be considered geochemically anomalous in this element.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2357","usgsCitation":"Goldhaber, M., Irwin, E., Atkins, B., Lee, L., Black, D., Zappia, H., Hatch, J., Pashin, J., Barwick, L., Cartwright, W., Sanzolone, R., Rupert, L., Kolker, A., and Finkelman, R., 2001, Arsenic in stream sediments of northern Alabama: U.S. Geological Survey Miscellaneous Field Studies Map 2357, Sheet 62 by 44 inches (in color)., https://doi.org/10.3133/mf2357.","productDescription":"Sheet 62 by 44 inches (in color).","costCenters":[],"links":[{"id":186819,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6048,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2357/","linkFileType":{"id":5,"text":"html"}},{"id":110182,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_39183.htm","linkFileType":{"id":5,"text":"html"},"description":"39183"}],"country":"United States","state":"Alabama","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.65966796875,\n 33.22949814144951\n ],\n [\n -86.50634765625,\n 33.22949814144951\n ],\n [\n -86.50634765625,\n 35.11990857099681\n ],\n [\n -88.65966796875,\n 35.11990857099681\n ],\n [\n -88.65966796875,\n 33.22949814144951\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abce4b07f02db672ea6","contributors":{"authors":[{"text":"Goldhaber, M. B. 0000-0002-1785-4243","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":103280,"corporation":false,"usgs":true,"family":"Goldhaber","given":"M. B.","affiliations":[],"preferred":false,"id":265771,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Irwin, Elise","contributorId":26928,"corporation":false,"usgs":true,"family":"Irwin","given":"Elise","affiliations":[],"preferred":false,"id":265760,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Atkins, Brian","contributorId":38422,"corporation":false,"usgs":true,"family":"Atkins","given":"Brian","email":"","affiliations":[],"preferred":false,"id":265761,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lee, Lopaka","contributorId":83167,"corporation":false,"usgs":true,"family":"Lee","given":"Lopaka","email":"","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":265769,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Black, D.D.","contributorId":70244,"corporation":false,"usgs":true,"family":"Black","given":"D.D.","email":"","affiliations":[],"preferred":false,"id":265766,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zappia, Humbert","contributorId":79093,"corporation":false,"usgs":true,"family":"Zappia","given":"Humbert","email":"","affiliations":[],"preferred":false,"id":265767,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hatch, Joe","contributorId":50204,"corporation":false,"usgs":true,"family":"Hatch","given":"Joe","email":"","affiliations":[],"preferred":false,"id":265764,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Pashin, Jack","contributorId":80144,"corporation":false,"usgs":true,"family":"Pashin","given":"Jack","affiliations":[],"preferred":false,"id":265768,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Barwick, L.H.","contributorId":66961,"corporation":false,"usgs":true,"family":"Barwick","given":"L.H.","email":"","affiliations":[],"preferred":false,"id":265765,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Cartwright, W.E.","contributorId":103140,"corporation":false,"usgs":true,"family":"Cartwright","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":265770,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Sanzolone, Rick","contributorId":45180,"corporation":false,"usgs":true,"family":"Sanzolone","given":"Rick","email":"","affiliations":[],"preferred":false,"id":265762,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Rupert, Leslie","contributorId":45959,"corporation":false,"usgs":true,"family":"Rupert","given":"Leslie","email":"","affiliations":[],"preferred":false,"id":265763,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Kolker, Allan 0000-0002-5768-4533 akolker@usgs.gov","orcid":"https://orcid.org/0000-0002-5768-4533","contributorId":643,"corporation":false,"usgs":true,"family":"Kolker","given":"Allan","email":"akolker@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":265758,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Finkelman, Robert","contributorId":25036,"corporation":false,"usgs":true,"family":"Finkelman","given":"Robert","affiliations":[],"preferred":false,"id":265759,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}} ,{"id":60890,"text":"mf2331 - 2001 - Geologic map of the Silt quadrangle, Garfield County, Colorado","interactions":[{"subject":{"id":31868,"text":"ofr94696 - 1994 - Preliminary geologic map of the Silt Quadrangle, Garfield County, Colorado","indexId":"ofr94696","publicationYear":"1994","noYear":false,"title":"Preliminary geologic map of the Silt Quadrangle, Garfield County, Colorado"},"predicate":"SUPERSEDED_BY","object":{"id":60890,"text":"mf2331 - 2001 - Geologic map of the Silt quadrangle, Garfield County, Colorado","indexId":"mf2331","publicationYear":"2001","noYear":false,"title":"Geologic map of the Silt quadrangle, Garfield County, Colorado"},"id":1}],"lastModifiedDate":"2022-08-17T21:45:34.639744","indexId":"mf2331","displayToPublicDate":"2001-05-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2331","title":"Geologic map of the Silt quadrangle, Garfield County, Colorado","docAbstract":"New 1:24,000-scale geologic mapping in the Silt 7.5' quadrangle, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new interpretations of the stratigraphy, structure, and geologic hazards in the area of the southwest flank of the White River uplift, the Grand Hogback, and the eastern Piceance Basin. The Wasatch Formation was subdivided into three formal members, the Shire, Molina, and Atwell Gulch Members. Also a sandstone unit within the Shire Member was broken out. The Mesaverde Group consists of the upper Williams Fork Formation and the lower Iles Formation. Members for the Iles Formation consist of the Rollins Sandstone, the Cozzette Sandstone, and the Corcoran Sandstone Members. The Cozzette and Corcoran Sandstone Members were mapped as a combined unit. Only the upper part of the Upper Member of the Mancos Shale is exposed in the quadrangle. From the southwestern corner of the map area toward the northwest, the unfaulted early Eocene to Paleocene Wasatch Formation and underlying Mesaverde Group gradually increase in dip to form the Grand Hogback monocline that reaches 45-75 degree dips to the southwest (section A-A'). The shallow west-northwest-trending Rifle syncline separates the northern part of the quadrangle from the southern part along the Colorado River. Geologic hazards in the map area include erosion, expansive soils, and flooding. Erosion includes mass wasting, gullying, and piping. Mass wasting involves any rock or surficial material that moves downslope under the influence of gravity, such as landslides, debris flows, or rock falls, and is generally more prevalent on steeper slopes. Locally, where the Grand Hogback is dipping greater than 60 degrees and the Wasatch Formation has been eroded, leaving sandstone slabs of the Mesa Verde Group unsupported over vertical distances as great as 500 m, the upper part of the unit has collapsed in landslides, probably by a process of beam-buckle failure. In the source area of these landslides strata are overturned and dip shallowly to the northeast. Landslide deposits now armor Pleistocene pediment surfaces and extend at least 1 km into Cactus Valley. Gullying and piping generally occur on more gentle slopes. Expansive soils and expansive bedrock are those unconsolidated materials or rocks that swell when wet and shrink when dry. Most floods are restricted to low-lying areas. Several gas-producing wells extract methane from coals from the upper part of the Iles Formation.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2331","usgsCitation":"Shroba, R., and Scott, R.B., 2001, Geologic map of the Silt quadrangle, Garfield County, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 2331, HTML Document, https://doi.org/10.3133/mf2331.","productDescription":"HTML Document","costCenters":[],"links":[{"id":183590,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110170,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_36784.htm","linkFileType":{"id":5,"text":"html"},"description":"36784"},{"id":6024,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2331/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","country":"United States","state":"Colorado","county":"Garfield","otherGeospatial":"Silt quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -107.75,\n 39.5\n ],\n [\n -107.625,\n 39.5\n ],\n [\n -107.625,\n 39.625\n ],\n [\n -107.75,\n 39.625\n ],\n [\n -107.75,\n 39.5\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db688837","contributors":{"authors":[{"text":"Shroba, R. R.","contributorId":44133,"corporation":false,"usgs":true,"family":"Shroba","given":"R. R.","affiliations":[],"preferred":false,"id":264561,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, R. B.","contributorId":13638,"corporation":false,"usgs":false,"family":"Scott","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":264560,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":59075,"text":"mf2359 - 2001 - Geologic map of the Clifton Quadrangle, Mesa County, Colorado","interactions":[],"lastModifiedDate":"2017-03-07T08:40:27","indexId":"mf2359","displayToPublicDate":"2001-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2359","title":"Geologic map of the Clifton Quadrangle, Mesa County, Colorado","docAbstract":"1:24,000-scale geologic mapping in the Clifton 7.5' quadrangle, in support of the USGS Colorado River/I-70 Corridor Cooperative Geologic Mapping Project, provides interpretations of the Quaternary stratigraphy and geologic hazards in this area of the Grand Valley. The Clifton 1:24,000 quadrangle is in Mesa County in western Colorado. Because the map area is dominated by various surficial deposits, the map depicts 16 different Quaternary units. Five prominent river terraces are present in the quadrangle containing gravels deposited by the Colorado River. The map area contains a large landslide deposit on the southern slopes of Mount Garfield. The landslide developed in the Mancos Shale and contains large blocks of the overlying Mesaverde Group. In addition, the landslide is a source of debris flows that have closed I-70 in the past. The major bedrock unit in the quadrangle is the Mancos Shale of Upper Cretaceous age. The map is accompanied by text containing unit descriptions, and sections on geologic hazards (including landslides, piping, gullying, expansive soils, and flooding), and economic geology (including sand and gravel). A table indicates what map units are susceptible to a given hazard. Approximately 20 references are cited at the end of the report.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2359","usgsCitation":"Carrara, P., 2001, Geologic map of the Clifton Quadrangle, Mesa County, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 2359, https://doi.org/10.3133/mf2359.","costCenters":[],"links":[{"id":185335,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6018,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2359/","linkFileType":{"id":5,"text":"html"}},{"id":110150,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_34831.htm","linkFileType":{"id":5,"text":"html"},"description":"34831"}],"scale":"24000","country":"United States","state":"Colorado","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -108.5,39 ], [ -108.5,39.1175 ], [ -108.36749999999999,39.1175 ], [ -108.36749999999999,39 ], [ -108.5,39 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afee4b07f02db697961","contributors":{"authors":[{"text":"Carrara, P. E.","contributorId":33727,"corporation":false,"usgs":true,"family":"Carrara","given":"P. E.","affiliations":[],"preferred":false,"id":261375,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":60297,"text":"mf2354 - 2001 - Geologic map of the Chewelah 30' x 60' Quadrangle, Washington and Idaho","interactions":[],"lastModifiedDate":"2012-02-10T00:10:21","indexId":"mf2354","displayToPublicDate":"2001-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2354","title":"Geologic map of the Chewelah 30' x 60' Quadrangle, Washington and Idaho","docAbstract":"This data set maps and describes the geology of the Chewelah 30' X 60' quadrangle, Washington and Idaho. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage containing geologic contacts and units, (2) a point coverage containing site-specific geologic structural data, (3) two coverages derived from 1:100,000 Digital Line Graphs (DLG); one of which represents topographic data, and the other, cultural data, (4) two line coverages that contain cross-section lines and unit-label leaders, respectively, and (5) attribute tables for geologic units (polygons), contacts (arcs), and site-specific data (points). In addition, the data set includes the following graphic and text products: (1) A PostScript graphic plot-file containing the geologic map, topography, cultural data, and two cross sections, and on a separate sheet, a Correlation of Map Units (CMU) diagram, an abbreviated Description of Map Units (DMU), modal diagrams for granitic rocks, an index map, a regional geologic and structure map, and a key for point and line symbols; (2) PDF files of the Readme text-file and expanded Description of Map Units (DMU), and (3) this metadata file.\r\n The geologic map database contains original U.S. Geological Survey data generated by detailed field observation and by interpretation of aerial photographs. The map was compiled from geologic maps of eight 1:48,000 15' quadrangle blocks, each of which was made by mosaicing and reducing the four constituent 7.5' quadrangles. These 15' quadrangle blocks were mapped chiefly at 1:24,000 scale, but the detail of the mapping was governed by the intention that it was to be compiled at 1:48,000 scale. The compilation at 1:100,000 scale entailed necessary simplification in some areas and combining of some geologic units. Overall, however, despite a greater than two times reduction in scale, most geologic detail found on the 1:48,000 maps is retained on the 1:100,000 map. Geologic contacts across boundaries of the eight constituent quadrangles required minor adjustments, but none significant at the final 1:100,000 scale.\r\n The geologic map was compiled on a base-stable cronoflex copy of the Chewelah 30' X 60' topographic base and then scribed. The scribe guide was used to make a 0.007 mil-thick blackline clear-film, which was scanned at 1200 DPI by Optronics Specialty Company, Northridge, California. This image was converted to vector and polygon GIS layers and minimally attributed by Optronics Specialty Company. Minor hand-digitized additions were made at the USGS. Lines, points, and polygons were subsequently edited at the USGS by using standard ARC/INFO commands. Digitizing and editing artifacts significant enough to display at a scale of 1:100,000 were corrected. Within the database, geologic contacts are represented as lines (arcs), geologic units as polygons, and site-specific data as points. Polygon, arc, and point attribute tables (.pat, .aat, and .pat, respectively) uniquely identify each geologic datum.","language":"ENGLISH","doi":"10.3133/mf2354","usgsCitation":"Miller, F.K., 2001, Geologic map of the Chewelah 30' x 60' Quadrangle, Washington and Idaho (Online version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2354, 36 p. and 2 sheets, https://doi.org/10.3133/mf2354.","productDescription":"36 p. and 2 sheets","costCenters":[],"links":[{"id":110149,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_34810.htm","linkFileType":{"id":5,"text":"html"},"description":"34810"},{"id":183699,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6023,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2354/","linkFileType":{"id":5,"text":"html"}}],"scale":"0","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118,48 ], [ -118,48.5 ], [ -117,48.5 ], [ -117,48 ], [ -118,48 ] ] ] } } ] }","edition":"Online version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db6997ff","contributors":{"authors":[{"text":"Miller, F. K.","contributorId":10803,"corporation":false,"usgs":true,"family":"Miller","given":"F.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":263466,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":59158,"text":"mf2349 - 2001 - Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California","interactions":[],"lastModifiedDate":"2018-06-14T13:18:58","indexId":"mf2349","displayToPublicDate":"2001-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2349","title":"Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California","docAbstract":"Introduction\r\n\r\nThe Spreckels quadrangle lies at the north end of the Sierra de Salinas and extends from the Salinas Valley on the northeast across Los Laurelles Ridge south to Carmel Valley, an intermontane valley that separates the Santa Lucia Range from the Sierra de Salinas (fig. 1). The Toro Regional Park occupies the east-central part of the quadrangle, whereas the former Fort Ord Military Reservation covers the northwestern part of the area and is the probable locus of future development. Subdivisions largely occupy the older floodplain of Toro Creek and the adjacent foothills, with less dense development along the narrower canyons of Corral de Tierra and San Benancio Gulch to the south. The foothills southwest of the Salinas River are the site of active residential development. \r\n\r\nGeologically, the study area has a crystalline basement of Upper Cretaceous granitic rocks of the Salinian block and older metasedimentary rocks of the schist of the Sierra de Salinas of probable Cretaceous age. Resting nonconformably upon these basement rocks is a sedimentary section that ranges in age from middle Miocene to Holocene and has a composite thickness of as much as 1,200 m. One of the purposes of the present study was to investigate the apparent lateral variation of the middle to upper Miocene sections from the typical porcelaneous and diatomaceous Monterey Formation of the Monterey and Seaside quadrangles to the west (Clark and others, 1997) to a thick marine sandstone section in the eastern part of the Spreckels quadrangle. \r\n\r\nLiquefaction, which seriously affected the Spreckels area in the 1906 San Francisco earthquake (Lawson, 1908), and landsliding are the two major geological hazards of the area. The landslides consist mainly of older large slides in the southern and younger debris flows in the northern part of the quadrangle.\r\n\r\nThis digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (skmf.txt, skmf.pdf, or skmf.ps), it provides current information on the geologic structure and stratigraphy of the area covered. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2349","usgsCitation":"Clark, J., Brabb, E.E., Rosenberg, L.I., Goss, H.V., and Watkins, S.E., 2001, Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California (Online Version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2349, Map (31 x 32 inches); Pamphlet (22 p.); Metadata, https://doi.org/10.3133/mf2349.","productDescription":"Map (31 x 32 inches); Pamphlet (22 p.); Metadata","additionalOnlineFiles":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":180194,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9536,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/2349/","linkFileType":{"id":5,"text":"html"}},{"id":110148,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_34798.htm","linkFileType":{"id":5,"text":"html"},"description":"34798"}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -121.75,36.5 ], [ -121.75,36.6175 ], [ -121.61749999999999,36.6175 ], [ -121.61749999999999,36.5 ], [ -121.75,36.5 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a8669","contributors":{"authors":[{"text":"Clark, Joseph C.","contributorId":101663,"corporation":false,"usgs":true,"family":"Clark","given":"Joseph C.","affiliations":[],"preferred":false,"id":261547,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brabb, Earl E.","contributorId":48939,"corporation":false,"usgs":true,"family":"Brabb","given":"Earl","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":261546,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rosenberg, Lewis I.","contributorId":12073,"corporation":false,"usgs":true,"family":"Rosenberg","given":"Lewis","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":261543,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Goss, Heather V.","contributorId":32776,"corporation":false,"usgs":true,"family":"Goss","given":"Heather","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":261545,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Watkins, Sarah E.","contributorId":23234,"corporation":false,"usgs":true,"family":"Watkins","given":"Sarah","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":261544,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":58352,"text":"mf2333 - 2000 - Distribution of a suite of elements including arsenic and mercury in Alabama coal","interactions":[],"lastModifiedDate":"2017-02-28T15:59:14","indexId":"mf2333","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2333","title":"Distribution of a suite of elements including arsenic and mercury in Alabama coal","docAbstract":"

Arsenic and other elements are unusually abundant in Alabama coal. This conclusion is based on chemical analyses of coal in the U.S. Geological Survey's National Coal Resources Data System (NCRDS; Bragg and others, 1994). According to NCRDS data, the average concentration of arsenic in Alabama coal (72 ppm) is three times higher than is the average for all U.S. coal (24 ppm). Of the U.S. coal analyses for arsenic that are at least 3 standard deviations above the mean, approximately 90% are from the coal fields of Alabama. Figure 1 contrasts the abundance of arsenic in coal of the Warrior field of Alabama (histogram C) with that of coal of the Powder River Basin, Wyoming (histogram A), and the Eastern Interior Province including the Illinois Basin and nearby areas (histogram B). The Warrior field is by far the largest in Alabama. On the histogram, the large 'tail' of very high values (> 200 ppm) in the Warrior coal contrasts with the other two regions that have very few analyses greater than 200 ppm.

","language":"English","doi":"10.3133/mf2333","usgsCitation":"Goldhaber, M.B., Bigelow, R.C., Hatch, J.R., and Pashin, J., 2000, Distribution of a suite of elements including arsenic and mercury in Alabama coal: U.S. Geological Survey Miscellaneous Field Studies Map 2333, 22 maps, https://doi.org/10.3133/mf2333.","productDescription":"22 maps","costCenters":[],"links":[{"id":183976,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":5941,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2000/mf-2333/","linkFileType":{"id":5,"text":"html"}},{"id":109894,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23039.htm","linkFileType":{"id":5,"text":"html"},"description":"23039"}],"scale":"0","country":"United States","state":"Alabama","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -87.8,33.166666666666664 ], [ -87.8,34.2 ], [ -86.7,34.2 ], [ -86.7,33.166666666666664 ], [ -87.8,33.166666666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db64874e","contributors":{"authors":[{"text":"Goldhaber, Martin B. 0000-0002-1785-4243 mgold@usgs.gov","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":1339,"corporation":false,"usgs":true,"family":"Goldhaber","given":"Martin","email":"mgold@usgs.gov","middleInitial":"B.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":258844,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bigelow, R. C.","contributorId":90718,"corporation":false,"usgs":true,"family":"Bigelow","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":258847,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hatch, J. R.","contributorId":14775,"corporation":false,"usgs":true,"family":"Hatch","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":258845,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pashin, J.C.","contributorId":41897,"corporation":false,"usgs":true,"family":"Pashin","given":"J.C.","affiliations":[],"preferred":false,"id":258846,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":58362,"text":"mf2338 - 2000 - Generalized geologic map of the Absaroka-Beartooth study area, south-central Montana","interactions":[],"lastModifiedDate":"2024-05-29T20:24:08.1384","indexId":"mf2338","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2338","title":"Generalized geologic map of the Absaroka-Beartooth study area, south-central Montana","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2338","usgsCitation":"Van Gosen, B., Elliott, J.E., LaRock, E.J., Du Bray, E., Carlson, R.R., and Zientek, M.L., 2000, Generalized geologic map of the Absaroka-Beartooth study area, south-central Montana: U.S. Geological Survey Miscellaneous Field Studies Map 2338, 1 Plate: 58.00 x 42.00 inches, https://doi.org/10.3133/mf2338.","productDescription":"1 Plate: 58.00 x 42.00 inches","costCenters":[],"links":[{"id":5951,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2000/mf-2338/","linkFileType":{"id":5,"text":"html"}},{"id":110068,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25695.htm","linkFileType":{"id":5,"text":"html"},"description":"25695"},{"id":185092,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"26270","country":"United States","state":"Montana","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111,45 ], [ -111,45.75 ], [ -109,45.75 ], [ -109,45 ], [ -111,45 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b25e4b07f02db6af298","contributors":{"authors":[{"text":"Van Gosen, B. S. 0000-0003-4214-3811","orcid":"https://orcid.org/0000-0003-4214-3811","contributorId":23165,"corporation":false,"usgs":true,"family":"Van Gosen","given":"B. S.","affiliations":[],"preferred":false,"id":258879,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elliott, J. E.","contributorId":19914,"corporation":false,"usgs":true,"family":"Elliott","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":258877,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"LaRock, E. J.","contributorId":108190,"corporation":false,"usgs":true,"family":"LaRock","given":"E.","middleInitial":"J.","affiliations":[],"preferred":false,"id":258881,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Du Bray, E. A.","contributorId":22333,"corporation":false,"usgs":true,"family":"Du Bray","given":"E. A.","affiliations":[],"preferred":false,"id":258878,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Carlson, R. R.","contributorId":75918,"corporation":false,"usgs":true,"family":"Carlson","given":"R.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":258880,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zientek, M. L.","contributorId":6118,"corporation":false,"usgs":true,"family":"Zientek","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":258876,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":58486,"text":"mf2335 - 2000 - Map of Distribution of Bottom Sediments on the Continental Shelf, Gulf of Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:10:11","indexId":"mf2335","displayToPublicDate":"2001-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2335","title":"Map of Distribution of Bottom Sediments on the Continental Shelf, Gulf of Alaska","docAbstract":"Introduction\r\n\r\nThe U.S. Geological Survey has a long history of exploring marine geology in the Gulf of Alaska. As part of a cooperative program with other federal and state agencies, the USGS is investigating the relations between ocean-floor geology and benthic marine biohabitats. This bottom sediment map, compiled from published literature will help marine biologists develop an understanding of sea-floor geology in relation to various biological habitats.\r\n\r\nThe pattern of sea-floor sedimentation and bottom morphology in the Gulf of Alaska reflects a complex interplay of regional tectonism, glacial advances and retreats, oceanic and tidal currents, waves, storms, eustatic change, and gravity-driven processes. This map, based on numerous cruises during the period of 1970-1996, shows distribution of bottom sediments in areas of study on the continental shelf. The samples were collected with piston, box, and gravity corers, and grab samplers. The interpretations of sediment distribution are the products of sediment size analyses combined with interpretations of high-resolution seismic reflection profiles.\r\n\r\nThe sea floor was separated into several areas as follows: \r\nCook Inlet -- Hazards studies in this embayment emphasized sediment distribution, sediment dynamics, bedforms, shallow faults, and seafloor stability. Migrating mega-sandwaves, driven by strong tidal currents, influence seabed habitats and stability of the seafloor, especially near pipelines and drilling platforms. The coarseness of the bottom sediment reinforces the influence of the strong tidal currents on the seafloor habitats.\r\n\r\nKodiak Shelf -- Tectonic framework studies demonstrate the development of an accretionary wedge as the Pacific Plate underthrusts the Alaskan landmass. Seismic data across the accretionary wedge reveal anomalies indicative of fluid/gas vent sites in this segment of the continental margin. Geologic hazards research shows that movement along numerous shallow faults poses a risk to sea floor structures. Sea-floor sediment on shallow banks is eroded by seasonal wave-generated currents. The winnowing action of the large storm waves results in concentrations of gravel over broad segments of the Kodiak shelf.\r\n\r\nNortheastern Gulf of Alaska -- Tectonic framework studies demonstrate that rocks of distant origin (Yakutat terrane) are currently attached to and moving with the Pacific Plate, as it collides with and is subducted beneath southern Alaska. This collision process has led to pronounced structural deformation of the continental margin and adjacent southern Alaska. Consequences include rapidly rising mountains and high fluvial and glacial sedimentation rates on the adjacent margin and ocean floor. The northeastern Gulf of Alaska shelf also has concentrations of winnowed (lag) gravel on Tarr Bank and on the outer shelf southeast of Yakutat Bay. Between Kayak Island and Yakutat Bay the outer shelf consists of pebbly mud (diamict). This diamict is a product of glacial marine sedimentation during the Pleistocene and is present today as a relict sediment. A prograding wedge of Holocene sediment consisting of nearshore sand grading seaward into clayey silt and silty clay covers the relict pebbly mud to mid-shelf and beyond. Shelf and slope channel systems transport glacially derived sediment across the continental margin into Surveyor Channel, an abyssal fan and channel system that reaches over 1,000 km to the Aleutian Trench.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/mf2335","isbn":"0607938544","usgsCitation":"Evans, K.R., Carlson, P.R., Hampton, M.A., Marlow, M.S., and Barnes, P.W., 2000, Map of Distribution of Bottom Sediments on the Continental Shelf, Gulf of Alaska (Online Version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2335, Map: 49 x 35 inches, https://doi.org/10.3133/mf2335.","productDescription":"Map: 49 x 35 inches","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":181977,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110061,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25592.htm","linkFileType":{"id":5,"text":"html"},"description":"25592"},{"id":9531,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2000/2335/","linkFileType":{"id":5,"text":"html"}}],"scale":"1000000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -155,55 ], [ -155,61 ], [ -14,61 ], [ -14,55 ], [ -155,55 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db6556f0","contributors":{"authors":[{"text":"Evans, Kevin R.","contributorId":35724,"corporation":false,"usgs":true,"family":"Evans","given":"Kevin","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":259434,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carlson, Paul R.","contributorId":81469,"corporation":false,"usgs":true,"family":"Carlson","given":"Paul","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":259436,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hampton, Monty A. mhampton@usgs.gov","contributorId":4393,"corporation":false,"usgs":true,"family":"Hampton","given":"Monty","email":"mhampton@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":259432,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marlow, Michael S.","contributorId":72775,"corporation":false,"usgs":true,"family":"Marlow","given":"Michael","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":259435,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Barnes, Peter W.","contributorId":6042,"corporation":false,"usgs":true,"family":"Barnes","given":"Peter","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":259433,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}