{"pageNumber":"326","pageRowStart":"8125","pageSize":"25","recordCount":36990,"records":[{"id":32205,"text":"ofr9984 - 1999 - The difference between the potentiometric surfaces of the Magothy aquifer, September 1975 and September 1997 in southern Maryland","interactions":[],"lastModifiedDate":"2021-12-01T19:37:37.080762","indexId":"ofr9984","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-84","title":"The difference between the potentiometric surfaces of the Magothy aquifer, September 1975 and September 1997 in southern Maryland","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9984","usgsCitation":"Curtin, S.E., Andreasen, D., and Mack, F., 1999, The difference between the potentiometric surfaces of the Magothy aquifer, September 1975 and September 1997 in southern Maryland: U.S. Geological Survey Open-File Report 99-84, HTML Document, https://doi.org/10.3133/ofr9984.","productDescription":"HTML Document","costCenters":[],"links":[{"id":163072,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":392339,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_75782.htm"},{"id":3168,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr99-84/","linkFileType":{"id":5,"text":"html"}}],"scale":"70000","country":"United States","state":"Maryland","otherGeospatial":"Magothy aquifer","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -77.33333333333333,38 ], [ -77.33333333333333,39.25 ], [ -76,39.25 ], [ -76,38 ], [ -77.33333333333333,38 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb7eb","contributors":{"authors":[{"text":"Curtin, Stephen E. securtin@usgs.gov","contributorId":3703,"corporation":false,"usgs":true,"family":"Curtin","given":"Stephen","email":"securtin@usgs.gov","middleInitial":"E.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":207965,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andreasen, David C.","contributorId":59003,"corporation":false,"usgs":true,"family":"Andreasen","given":"David C.","affiliations":[],"preferred":false,"id":207966,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mack, Frederick K.","contributorId":95858,"corporation":false,"usgs":true,"family":"Mack","given":"Frederick K.","affiliations":[],"preferred":false,"id":207967,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":21836,"text":"ofr98640 - 1999 - Geology, hydrology, and results of tracer testing in the Galena-Platteville aquifer at a waste-disposal site near Byron, Illinois","interactions":[],"lastModifiedDate":"2023-03-10T21:12:52.818357","indexId":"ofr98640","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-640","title":"Geology, hydrology, and results of tracer testing in the Galena-Platteville aquifer at a waste-disposal site near Byron, Illinois","docAbstract":"A study was conducted by the U.S. Geological Survey and the U.S. Environmental Protection Agency of the geohydrology of the dolomite bedrock at a waste-disposal site near Byron, Illinois. The study was designed to identify and characterize the flow pathways through the bedrock aquifer beneath the site. The geologic units of concern at the site are the Glenwood Formation of the Ancell Group, and the Platteville and Galena Groups. These deposits compose the Galena-Platteville aquifer and the underlying Harmony Hill Shale semiconfining unit. The Galena-Platteville aquifer is an unconfined aquifer.\r\nGeophysical logging, water levels, and aquifer-test data indicate the presence of interconnected, hydraulically active fractures in the middle of the Galena-Platteville aquifer (the upper flow pathway), and a second set of hydraulically active fractures (the lower flow pathway). The lower flow pathway may be present through much of the site. Few hydraulically active fractures are present in the upper part of the aquifer near the center of the site, but appear to be more numerous in the upper part of the aquifer in the western and northeastern parts of the site.\r\n\r\nWater-level data obtained during the tracer test indicate that pumping effects were present near the pumped wells. Pumping effects may have been present at several wells located along directions of identified fracture orientation from the pumped well. The upper part of the aquifer did not appear to be hydraulically well connected to the flow pathways supplying water to the pumped well. Large background changes in water levels obscured the effects of pumping and prevented calculation of aquifer properties. The velocity of the bromide tracer through the lower flow pathway under the hydraulic gradient resulting from the pumping was about 152 feet per day. Solution of the Darcy velocity equation results in a calculated effective porosity for this interval of 3.5 percent, indicating hydraulic interconnection between the fractures and the aquifer matrix. Ground-water velocity through the lower flow pathway was calculated to be 15.4 feet per day under hydrostatic conditions.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98640","usgsCitation":"Kay, R.T., Yeskis, D.J., Prinos, S.T., Morrow, W.S., and Vendl, M., 1999, Geology, hydrology, and results of tracer testing in the Galena-Platteville aquifer at a waste-disposal site near Byron, Illinois: U.S. Geological Survey Open-File Report 98-640, iv, 49 p., https://doi.org/10.3133/ofr98640.","productDescription":"iv, 49 p.","costCenters":[{"id":269,"text":"FLWSC-Ft. Lauderdale","active":true,"usgs":true},{"id":344,"text":"Illinois Water Science Center","active":true,"usgs":true}],"links":[{"id":413967,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_19332.htm","linkFileType":{"id":5,"text":"html"}},{"id":51323,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0640/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":153598,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0640/report-thumb.jpg"}],"country":"United States","state":"Illinois","city":"Byron","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -89.067,\n              42.317\n            ],\n            [\n              -89.1,\n              42.317\n            ],\n            [\n              -89.1,\n              42.283\n            ],\n            [\n              -89.067,\n              42.283\n            ],\n            [\n              -89.067,\n              42.317\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c5ab","contributors":{"authors":[{"text":"Kay, Robert T. 0000-0002-6281-8997 rtkay@usgs.gov","orcid":"https://orcid.org/0000-0002-6281-8997","contributorId":1122,"corporation":false,"usgs":true,"family":"Kay","given":"Robert","email":"rtkay@usgs.gov","middleInitial":"T.","affiliations":[{"id":344,"text":"Illinois Water Science Center","active":true,"usgs":true}],"preferred":true,"id":185894,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yeskis, Douglas J. djyeskis@usgs.gov","contributorId":2323,"corporation":false,"usgs":true,"family":"Yeskis","given":"Douglas","email":"djyeskis@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":185896,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Prinos, Scott T. 0000-0002-5776-8956 stprinos@usgs.gov","orcid":"https://orcid.org/0000-0002-5776-8956","contributorId":4045,"corporation":false,"usgs":true,"family":"Prinos","given":"Scott","email":"stprinos@usgs.gov","middleInitial":"T.","affiliations":[{"id":269,"text":"FLWSC-Ft. Lauderdale","active":true,"usgs":true},{"id":156,"text":"Caribbean Water Science Center","active":true,"usgs":true}],"preferred":true,"id":185897,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Morrow, William S. 0000-0002-2250-3165 wsmorrow@usgs.gov","orcid":"https://orcid.org/0000-0002-2250-3165","contributorId":1886,"corporation":false,"usgs":true,"family":"Morrow","given":"William","email":"wsmorrow@usgs.gov","middleInitial":"S.","affiliations":[{"id":344,"text":"Illinois Water Science Center","active":true,"usgs":true}],"preferred":true,"id":185895,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Vendl, Mark","contributorId":52604,"corporation":false,"usgs":true,"family":"Vendl","given":"Mark","email":"","affiliations":[],"preferred":false,"id":185898,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":24475,"text":"ofr99131 - 1999 - The contribution of giant fields to United States oil production and reserves","interactions":[],"lastModifiedDate":"2012-02-02T00:08:09","indexId":"ofr99131","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-131","title":"The contribution of giant fields to United States oil production and reserves","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr99131","issn":"0094-9140","usgsCitation":"Schmoker, J., 1999, The contribution of giant fields to United States oil production and reserves: U.S. Geological Survey Open-File Report 99-131, 25 p. ill. ;28 cm., https://doi.org/10.3133/ofr99131.","productDescription":"25 p. ill. ;28 cm.","costCenters":[],"links":[{"id":156475,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0131/report-thumb.jpg"},{"id":53541,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0131/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aaae4b07f02db6689ac","contributors":{"authors":[{"text":"Schmoker, J. W.","contributorId":69964,"corporation":false,"usgs":true,"family":"Schmoker","given":"J. W.","affiliations":[],"preferred":false,"id":191992,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":24961,"text":"ofr9915 - 1999 - Selected data from eleven wildcat wells in the National Petroleum Reserve in Alaska","interactions":[],"lastModifiedDate":"2017-03-09T13:16:28","indexId":"ofr9915","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-15","title":"Selected data from eleven wildcat wells in the National Petroleum Reserve in Alaska","docAbstract":"Between 1978 and 1981, the U.S. Geological Survey drilled 27 wells in the National Petroleum Reserve in Alaska. This publication presents the following data from eleven of those 27 wells: general information, well core images, depths to specific stratigraphic units, well core gamma ray logs in LAS format, well log information in LAS format, geological and drilling history reports in Adobe Acrobat PDF format, and permeability and porosity data.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9915","issn":"0094-9140","usgsCitation":"Zihlman, F.N., and Oliver, H.L., 1999, Selected data from eleven wildcat wells in the National Petroleum Reserve in Alaska: U.S. Geological Survey Open-File Report 99-15, 1 disk, https://doi.org/10.3133/ofr9915.","productDescription":"1 disk","costCenters":[],"links":[{"id":157716,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1926,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0015/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb9fe","contributors":{"authors":[{"text":"Zihlman, F. N.","contributorId":16819,"corporation":false,"usgs":true,"family":"Zihlman","given":"F.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":192869,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Oliver, H. L.","contributorId":87130,"corporation":false,"usgs":true,"family":"Oliver","given":"H.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":192870,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":24224,"text":"ofr9948 - 1999 - Stable isotope data and AMS 14C dates from Arctic Ocean Section 1994 surface sediment transect and box core samples from the Mendeleyev Ridge area","interactions":[],"lastModifiedDate":"2012-02-02T00:08:05","indexId":"ofr9948","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-48","title":"Stable isotope data and AMS 14C dates from Arctic Ocean Section 1994 surface sediment transect and box core samples from the Mendeleyev Ridge area","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr9948","issn":"0094-9140","usgsCitation":"Poore, R., Ostermann, D., and McGeehin, J., 1999, Stable isotope data and AMS 14C dates from Arctic Ocean Section 1994 surface sediment transect and box core samples from the Mendeleyev Ridge area: U.S. Geological Survey Open-File Report 99-48, 17 p. :maps ;28 cm., https://doi.org/10.3133/ofr9948.","productDescription":"17 p. :maps ;28 cm.","costCenters":[],"links":[{"id":155550,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0048/report-thumb.jpg"},{"id":53358,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0048/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e1e4b07f02db5e4930","contributors":{"authors":[{"text":"Poore, R.Z.","contributorId":35314,"corporation":false,"usgs":true,"family":"Poore","given":"R.Z.","email":"","affiliations":[],"preferred":false,"id":191524,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ostermann, D.R.","contributorId":22197,"corporation":false,"usgs":true,"family":"Ostermann","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":191523,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McGeehin, J. P. 0000-0002-5320-6091","orcid":"https://orcid.org/0000-0002-5320-6091","contributorId":48593,"corporation":false,"usgs":true,"family":"McGeehin","given":"J. P.","affiliations":[],"preferred":false,"id":191525,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":22189,"text":"ofr98637 - 1999 - Study design and analytical results used to evaluate stability of volatile organic compounds in water matrices","interactions":[],"lastModifiedDate":"2012-02-02T00:08:01","indexId":"ofr98637","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-637","title":"Study design and analytical results used to evaluate stability of volatile organic compounds in water matrices","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr98637","issn":"0094-9140","usgsCitation":"Love, J.T., Delzer, G., Abney, S.R., and Zogorski, J.S., 1999, Study design and analytical results used to evaluate stability of volatile organic compounds in water matrices: U.S. Geological Survey Open-File Report 98-637, v, 156 p. :ill. ;28 cm., https://doi.org/10.3133/ofr98637.","productDescription":"v, 156 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":155021,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0637/report-thumb.jpg"},{"id":51625,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0637/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699cfe","contributors":{"authors":[{"text":"Love, Jason T.","contributorId":34957,"corporation":false,"usgs":true,"family":"Love","given":"Jason","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":187540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Delzer, G.C.","contributorId":60261,"corporation":false,"usgs":true,"family":"Delzer","given":"G.C.","affiliations":[],"preferred":false,"id":187541,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Abney, Sonja R.","contributorId":62992,"corporation":false,"usgs":true,"family":"Abney","given":"Sonja","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":187542,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zogorski, John S. jszogors@usgs.gov","contributorId":189,"corporation":false,"usgs":true,"family":"Zogorski","given":"John","email":"jszogors@usgs.gov","middleInitial":"S.","affiliations":[],"preferred":true,"id":187539,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":21994,"text":"ofr9957 - 1999 - Organic compounds and trace elements in the Pocomoke River and tributaries, Maryland","interactions":[],"lastModifiedDate":"2022-11-02T18:53:15.910404","indexId":"ofr9957","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-57","title":"Organic compounds and trace elements in the Pocomoke River and tributaries, Maryland","docAbstract":"In response to concern about recent blooms of the dinoflagellate, Pfiesteria piscicida, samples of sediment and water were collected from the lower Pocomoke River Basin and were screened for trace elements, pesticides, and other organic compounds. A large group of steroid and fatty acid methyl-ester compounds was detected in streamwater using gas chromatography/mass spectroscopy in scan mode. Some of these steroid compounds have been identified and further quantified in bed-sediment extracts. Spatial patterns of the concentrations of cholesterol suggest that these compounds are linked to the runoff of animal wastes into the river. Many of the organic compounds found in the Pocomoke River sediments have not yet been identified, but at least several are in the class of hormone compounds related to estradiols and have the potential to promote endocrine-disrupting effects in aquatic life. Particulate forms of arsenic and zinc are slightly elevated above normal levels for streams, but the sources for these elements are still undetermined. Several pesticides were found in low, parts-per-trillion concentrations, but were within the ranges commonly found in streams of this region.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9957","usgsCitation":"Miller, C.V., Foster, G.D., Huff, T.B., and Garbarino, J.R., 1999, Organic compounds and trace elements in the Pocomoke River and tributaries, Maryland (Revised January 2000): U.S. Geological Survey Open-File Report 99-57, iv, 35 p., https://doi.org/10.3133/ofr9957.","productDescription":"iv, 35 p.","costCenters":[],"links":[{"id":154534,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":409070,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16371.htm","linkFileType":{"id":5,"text":"html"}},{"id":1168,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr99-57/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Maryland","otherGeospatial":"Pocomoke River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -75.558,\n              38.083\n            ],\n            [\n              -75.675,\n              38.083\n            ],\n            [\n              -75.675,\n              37.95\n            ],\n            [\n              -75.558,\n              37.95\n            ],\n            [\n              -75.558,\n              38.083\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","edition":"Revised January 2000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db605c0c","contributors":{"authors":[{"text":"Miller, Cherie V. 0000-0001-7765-5919 cvmiller@usgs.gov","orcid":"https://orcid.org/0000-0001-7765-5919","contributorId":863,"corporation":false,"usgs":true,"family":"Miller","given":"Cherie","email":"cvmiller@usgs.gov","middleInitial":"V.","affiliations":[{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":186585,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Foster, Gregory D.","contributorId":18020,"corporation":false,"usgs":true,"family":"Foster","given":"Gregory","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":186587,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Huff, Thomas B.","contributorId":26719,"corporation":false,"usgs":true,"family":"Huff","given":"Thomas","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":186588,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Garbarino, John R. jrgarb@usgs.gov","contributorId":2189,"corporation":false,"usgs":true,"family":"Garbarino","given":"John","email":"jrgarb@usgs.gov","middleInitial":"R.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":186586,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":52674,"text":"ofr9987 - 1999 - Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 1997","interactions":[],"lastModifiedDate":"2012-02-02T00:11:26","indexId":"ofr9987","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-87","title":"Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 1997","language":"ENGLISH","doi":"10.3133/ofr9987","usgsCitation":"Curtin, S.E., Andreasen, D., and Mack, F., 1999, Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 1997: U.S. Geological Survey Open-File Report 99-87, 1 map : photocopy ; 20 x 17 cm., on sheet 28 x 22 cm., https://doi.org/10.3133/ofr9987.","productDescription":"1 map : photocopy ; 20 x 17 cm., on sheet 28 x 22 cm.","costCenters":[],"links":[{"id":5171,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr99-87/ ","linkFileType":{"id":5,"text":"html"}},{"id":178660,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad4e4b07f02db682ebf","contributors":{"authors":[{"text":"Curtin, Stephen E. securtin@usgs.gov","contributorId":3703,"corporation":false,"usgs":true,"family":"Curtin","given":"Stephen","email":"securtin@usgs.gov","middleInitial":"E.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":245763,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andreasen, David C.","contributorId":59003,"corporation":false,"usgs":true,"family":"Andreasen","given":"David C.","affiliations":[],"preferred":false,"id":245764,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mack, Frederick K.","contributorId":95858,"corporation":false,"usgs":true,"family":"Mack","given":"Frederick K.","affiliations":[],"preferred":false,"id":245765,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":22721,"text":"ofr9980 - 1999 - Workplan for U.S. Geological Survey hydrologic data-collection and support activities on Fort Wainwright, Alaska, 1994-97","interactions":[],"lastModifiedDate":"2012-02-02T00:08:08","indexId":"ofr9980","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-80","title":"Workplan for U.S. Geological Survey hydrologic data-collection and support activities on Fort Wainwright, Alaska, 1994-97","docAbstract":"The U.S. Army Alaska is responsible for environmental activities on Fort Wainwright near Fairbanks, Alaska. In order to better meet the needs of environmental investigations, the Army requires geohydrologic information about the Fort Wainwright area. Since 1994, the U.S. Geological Survey has been working in cooperation with the U.S. Army Alaska and the U.S. Army Corps of Engineers to investigate the geohydrology of the Fort Wainwright area. The primary objectives of the study are to collect basic ground-water and surface-water data and to support ongoing environmental investigations by other agencies. This report is the workplan describing the technical methods used by the USGS to meet these objectives. It includes details on field procedures, data collection, and analyses of water samples.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr9980","issn":"0094-9140","usgsCitation":"Claar, D.V., and Lilly, M.R., 1999, Workplan for U.S. Geological Survey hydrologic data-collection and support activities on Fort Wainwright, Alaska, 1994-97: U.S. Geological Survey Open-File Report 99-80, vi, 124 p. ill., maps ;28 cm.; 8 illus.; 4 tables, https://doi.org/10.3133/ofr9980.","productDescription":"vi, 124 p. ill., maps ;28 cm.; 8 illus.; 4 tables","costCenters":[],"links":[{"id":156506,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0080/report-thumb.jpg"},{"id":52173,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0080/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49d8e4b07f02db5df672","contributors":{"authors":[{"text":"Claar, David V.","contributorId":10068,"corporation":false,"usgs":true,"family":"Claar","given":"David","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":188759,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lilly, Michael R.","contributorId":65494,"corporation":false,"usgs":true,"family":"Lilly","given":"Michael","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":188760,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":22925,"text":"ofr99134 - 1999 - Time series analysis of physical properties from Ocean Drilling Program sites 1018 and 1020, California margin","interactions":[],"lastModifiedDate":"2012-02-02T00:07:51","indexId":"ofr99134","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-134","title":"Time series analysis of physical properties from Ocean Drilling Program sites 1018 and 1020, California margin","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr99134","issn":"0094-9140","usgsCitation":"Dowsett, H.J., 1999, Time series analysis of physical properties from Ocean Drilling Program sites 1018 and 1020, California margin: U.S. Geological Survey Open-File Report 99-134, 10 p. ill., map ;28 cm., https://doi.org/10.3133/ofr99134.","productDescription":"10 p. ill., map ;28 cm.","costCenters":[],"links":[{"id":153841,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0134/report-thumb.jpg"},{"id":52330,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0134/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a53e4b07f02db62b5d3","contributors":{"authors":[{"text":"Dowsett, Harry J. 0000-0003-1983-7524 hdowsett@usgs.gov","orcid":"https://orcid.org/0000-0003-1983-7524","contributorId":949,"corporation":false,"usgs":true,"family":"Dowsett","given":"Harry","email":"hdowsett@usgs.gov","middleInitial":"J.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":189136,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":32184,"text":"ofr98600B - 1999 - Preliminary determination of epicenters; monthly listing; April-June 1998","interactions":[],"lastModifiedDate":"2021-09-27T11:31:29.866892","indexId":"ofr98600B","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-600","chapter":"B","title":"Preliminary determination of epicenters; monthly listing; April-June 1998","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Preliminary determination of epicenters-monthly listings (1998)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98600B","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1999, Preliminary determination of epicenters; monthly listing; April-June 1998: U.S. Geological Survey Open-File Report 98-600, 104 p., https://doi.org/10.3133/ofr98600B.","productDescription":"104 p.","costCenters":[],"links":[{"id":161058,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0600b/report-thumb.jpg"},{"id":60294,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0600b/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":389664,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_39555.htm"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699e23","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":529348,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":24518,"text":"ofr99143 - 1999 - New radiocarbon ages from Haleakalā Crater, island of Maui, Hawai'i","interactions":[],"lastModifiedDate":"2021-11-04T19:32:30.432577","indexId":"ofr99143","displayToPublicDate":"1999-09-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-143","title":"New radiocarbon ages from Haleakalā Crater, island of Maui, Hawai'i","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr99143","issn":"0094-9140","usgsCitation":"Sherrod, D.R., and McGeehin, J., 1999, New radiocarbon ages from Haleakalā Crater, island of Maui, Hawai'i: U.S. Geological Survey Open-File Report 99-143, 14 p., https://doi.org/10.3133/ofr99143.","productDescription":"14 p.","costCenters":[],"links":[{"id":391397,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16282.htm"},{"id":155909,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0143/report-thumb.jpg"},{"id":53570,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0143/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Hawaii","otherGeospatial":"Haleakala Crater","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156.29837036132812,\n              20.653346148076064\n            ],\n            [\n              -156.0944366455078,\n              20.653346148076064\n            ],\n            [\n              -156.0944366455078,\n              20.77922700256325\n            ],\n            [\n              -156.29837036132812,\n              20.77922700256325\n            ],\n            [\n              -156.29837036132812,\n              20.653346148076064\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afee4b07f02db6975a0","contributors":{"authors":[{"text":"Sherrod, D. R.","contributorId":44559,"corporation":false,"usgs":true,"family":"Sherrod","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":192066,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McGeehin, J. P. 0000-0002-5320-6091","orcid":"https://orcid.org/0000-0002-5320-6091","contributorId":48593,"corporation":false,"usgs":true,"family":"McGeehin","given":"J. P.","affiliations":[],"preferred":false,"id":192067,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":21726,"text":"ofr99159 - 1999 - Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado","interactions":[],"lastModifiedDate":"2020-03-03T06:54:28","indexId":"ofr99159","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-159","title":"Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado","docAbstract":"Prospect Gulch is a major source of iron, aluminum, zinc, and other metals to\r\nCement Creek. Information is needed to prioritize remediation and develop strategies for\r\ncleanup of historical abandoned mine sites in Prospect Gulch. Chemical-constituent\r\nloads were determined in Prospect Gulch, a high-elevation alpine stream in southwestern\r\nColorado that is affected by natural acid drainage from weathering of hydro-thermally\r\naltered igneous rock and acidic metal-laden discharge from historical abandoned mines.\r\nThe objective of the study was to identify metal sources to Prospect Gulch. A tracer\r\nsolution was injected into Prospect Gulch during water-quality sampling so that loading\r\nof geochemical constituents could be calculated throughout the study reach. A\r\nthunderstorm occurred during the tracer study, hence, metal loads were measured for\r\nstorm-runoff as well as for base flow. Data from different parts of the study reach\r\nrepresents different flow conditions. The beginning of the reach represents background\r\nconditions during base flow immediately upstream from the Lark and Henrietta mines\r\n(samples PG5 to PG45). Other samples were collected during storm runoff conditions\r\n(PG100 to PG291); during the first flush of metal runoff following the onset of rainfall\r\n(PG303 to PG504), and samples PG542 to PG700 were collected during low-flow\r\nconditions.\r\nDuring base-flow conditions, the percentage increase in loads for major\r\nconstituents and trace metals was more than an order of magnitude greater than the\r\ncorresponding 36 % increase in stream discharge. Within the study reach, the highest\r\npercentage increases for dissolved loads were 740 % for iron (Fe), 465 % for aluminum\r\n(Al), 500 % for lead (Pb), 380 % for copper (Cu), 100 % for sulfate (SO4), and 50 % for\r\nzinc (Zn). Downstream loads near the mouth of Prospect Gulch often greatly exceeded\r\nthe loads generated within the study reach but varied by metal species. For example, the\r\nstudy reach accounts for about 6 % of the dissolved-Fe load, 13 % of the dissolved-Al\r\nload, and 18 % of the dissolved-Zn load; but probably contributes virtually all of the\r\ndissolved Cu and Pb. The greatest downstream gains in dissolved trace-metal loads\r\noccurred near waste-rock dumps for the historical mines. The major sources of trace\r\nmetals to the study reach were related to mining. The major source of trace metals in the\r\nreach near the mouth is unknown, however is probably related to weathering of highly\r\naltered igneous rocks, although an unknown component of trace metals could be derived\r\nfrom mining sources The late-summer storm dramatically increased the loads of most dissolved and\r\ntotal constituents. The effects of the storm were divided into two distinct periods; (1) a\r\nfirst flush of higher metal concentrations that occurred soon after rainfall began and (2)\r\nthe peak discharge of the storm runoff. The first flush contained the highest loads of\r\ndissolved Fe, total and dissolved Zn, Cu, and Cd. The larger concentrations of Fe and\r\nsulfate in the first flush were likely derived from iron hydroxide minerals such as jarosite\r\nand schwertmanite, which are common on mine dumps in the Prospect Gulch drainage\r\nbasin. Peak storm runoff contained the highest measured loads of total Fe, and of total\r\nand dissolved calcium, magnesium, silica and Al, which were probably derived from\r\nweathering of igneous rocks and clay minerals in the drainage basin.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr99159","issn":"0566-8174","usgsCitation":"Wirt, L., Leib, K., Bove, D.J., Mast, M., Evans, J., and Meeker, G., 1999, Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado: U.S. Geological Survey Open-File Report 99-159, 39 p., https://doi.org/10.3133/ofr99159.","productDescription":"39 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":154783,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1171,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0159/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado ","otherGeospatial":"Prospect Gulch","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -109.072265625,\n              36.80928470205937\n            ],\n            [\n              -104.1064453125,\n              36.80928470205937\n            ],\n            [\n              -104.1064453125,\n              39.87601941962116\n            ],\n            [\n              -109.072265625,\n              39.87601941962116\n            ],\n            [\n              -109.072265625,\n              36.80928470205937\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db667823","contributors":{"authors":[{"text":"Wirt, Laurie","contributorId":13204,"corporation":false,"usgs":true,"family":"Wirt","given":"Laurie","affiliations":[],"preferred":false,"id":185426,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leib, K.J.","contributorId":62236,"corporation":false,"usgs":true,"family":"Leib","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":185428,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bove, D. J.","contributorId":70767,"corporation":false,"usgs":true,"family":"Bove","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":185430,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mast, M.A.","contributorId":67871,"corporation":false,"usgs":true,"family":"Mast","given":"M.A.","affiliations":[],"preferred":false,"id":185429,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Evans, J. B.","contributorId":77182,"corporation":false,"usgs":true,"family":"Evans","given":"J. B.","affiliations":[],"preferred":false,"id":185431,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Meeker, G.P.","contributorId":34539,"corporation":false,"usgs":true,"family":"Meeker","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":185427,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":21572,"text":"ofr9917 - 1999 - Adsorption capabilities of selected clinoptilolite-rich rocks as it relates to mine drainage remediation","interactions":[],"lastModifiedDate":"2017-03-06T16:15:42","indexId":"ofr9917","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-17","title":"Adsorption capabilities of selected clinoptilolite-rich rocks as it relates to mine drainage remediation","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey :\r\nBooks and Open-file Reports, U.S. Geological Survey [distributor],","doi":"10.3133/ofr9917","usgsCitation":"Gilbert, J., O’Meara, P.M., Crock, J., Wildeman, T., and Desborough, G.A., 1999, Adsorption capabilities of selected clinoptilolite-rich rocks as it relates to mine drainage remediation: U.S. Geological Survey Open-File Report 99-17, ii, 50 p. ill. ;28 cm., https://doi.org/10.3133/ofr9917.","productDescription":"ii, 50 p. ill. ;28 cm.","costCenters":[],"links":[{"id":153525,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0017/report-thumb.jpg"},{"id":51159,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0017/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db69936c","contributors":{"authors":[{"text":"Gilbert, J.S.","contributorId":22796,"corporation":false,"usgs":true,"family":"Gilbert","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":184704,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Meara, P. M.","contributorId":99172,"corporation":false,"usgs":true,"family":"O’Meara","given":"P.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":184708,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Crock, J.G.","contributorId":58236,"corporation":false,"usgs":true,"family":"Crock","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":184707,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wildeman, T.R.","contributorId":30248,"corporation":false,"usgs":true,"family":"Wildeman","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":184705,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Desborough, G. A.","contributorId":34527,"corporation":false,"usgs":true,"family":"Desborough","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":184706,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":22606,"text":"ofr997A - 1999 - An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona","interactions":[],"lastModifiedDate":"2023-12-12T11:53:16.683449","indexId":"ofr997A","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-7","chapter":"A","title":"An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona","docAbstract":"<p>Executive Summary -- In March of 1997, an airborne electromagnetic (AEM) survey of the Fort Huachuca Military Reservation and immediate surrounds (location map, http://geopubs.wr.usgs.gov/open-file/of99-007-b/index.jpg) was conducted. This survey was sponsored by the U.S. Army and contracted through the Geologic Division of the U.S. Geological Survey (USGS). Data were gathered by Geoterrex-Dighem Ltd. of Ottawa, Canada. The survey aircraft is surrounded by a coil through which a large current pulse is passed. This pulse induces currents in the Earth which are recorded by a set of three mutually perpendicular coils towed in a 'bird' about 100 m behind and below the aircraft. The bird also records the Earth's magnetic field. The system samples the Earth response to the electromagnetic pulse about every 16 m along the aircraft flight path. For this survey, the bulk of the flightpaths were spaced about 400 m apart and oriented in a northeast-southwest direction extending from bedrock over the Huachuca Mountains to bedrock over the Tombstone Hills. A preliminary report on the unprocessed data collected in the field was delivered to the U.S. Army by USGS in July 1997 (USGS Open-File Report 97?457). The final data were delivered in March, 1998 by the contractor to USGS and thence to the U.S. Army. The present report represents the final interpretive report from USGS. The objectives of the survey were to: 1) define the structure of the San Pedro basin in the Sierra Vista-Fort Huachuca-Huachuca City area, including the depth and shape of the basin, and to delineate large faults that may be active within the basin fill and therefore important in the hydrologic regime; 2) define near surface and subsurface areas that contain a large volume fraction of silt and clay in the basin fill and which both reduce the volume of available storage for water and reduce the permeability of the aquifer; and 3) to evaluate the use of the time domain electromagnetic method in the southwest desert setting as a means of mapping depth to water. Chapter one, written by M.E. Gettings, reports the results of the analysis of the aeromagnetic anomaly data. Depths to magnetic rocks computed from these data are in good agreement with depths from gravity anomaly models (Gettings and Houser, in prep.) and confirm and refine the location of the bedrock highs which reach to within 200 m of the surface in several parts of the study area. The highly faulted and generally shallow character of the basin within the study area deduced from the gravity studies is also evident in the aeromagnetic data. The caldera ring fault delimiting the buried structural southwest edge of the Tombstone caldera is expressed in the magnetic data and deeper intrusives extending outside the caldera to the southwest are inferred. Several magnetic bodies occur at shallow depths within the Precambrian granite of the Huachuca Mountains along the eastern foothills of the mountains. These are inferred to be Tertiary intrusives but remain to be confirmed by field work if any of their uppermost dikes or apotheses are exposed. Faults delineating the east-west trending bedrock high beneath the city of Sierra Vista appear to be shallow and should be investigated for surface expressions. Chapter two, written by Jeff Wynn, analyzes and interprets the conductivity depth transforms (CDTs) and provides a general evaluation of the data quality. He concludes that there is a good general correlation between the uppermost conductor seen in the CDTs and water table depth in many cases. Detailed comparisons between the ground-based vertical electric soundings (VES) and the CDTs are reported in this chapter. The two sets of data compare well in general for most sounding sites where the VES data are not noisy.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr997A","usgsCitation":"Bultman, M., Gettings, M.E., and Wynn, J., 1999, An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona: U.S. Geological Survey Open-File Report 99-7, CD-ROM, https://doi.org/10.3133/ofr997A.","productDescription":"CD-ROM","costCenters":[],"links":[{"id":423389,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16676.htm","linkFileType":{"id":5,"text":"html"}},{"id":155985,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Arizzona","county":"Cochise County","otherGeospatial":"Fort Huachuca","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -110.5,31.333333 ], [ -110.5,31.833333 ], [ -110.0,31.833333 ], [ -110.0,31.333333 ], [ -110.5,31.333333 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db68441f","contributors":{"authors":[{"text":"Bultman, M.W.","contributorId":107306,"corporation":false,"usgs":true,"family":"Bultman","given":"M.W.","affiliations":[],"preferred":false,"id":188559,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gettings, M. E.","contributorId":25148,"corporation":false,"usgs":true,"family":"Gettings","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":188558,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wynn, Jeff 0000-0002-8102-3882 jwynn@usgs.gov","orcid":"https://orcid.org/0000-0002-8102-3882","contributorId":2803,"corporation":false,"usgs":true,"family":"Wynn","given":"Jeff","email":"jwynn@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":188557,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":32195,"text":"ofr9920A - 1999 - Stratigraphic sections and equivalent uranium (eU), Meade Peak phosphatic shale member of Permian Phosphoria Formation; central part of Rasmussen Ridge, Caribou County, Idaho","interactions":[],"lastModifiedDate":"2012-02-02T00:09:17","indexId":"ofr9920A","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-20","chapter":"A","title":"Stratigraphic sections and equivalent uranium (eU), Meade Peak phosphatic shale member of Permian Phosphoria Formation; central part of Rasmussen Ridge, Caribou County, Idaho","language":"ENGLISH","doi":"10.3133/ofr9920A","usgsCitation":"Tysdal, R.G., Johnson, E.A., Herring, J., and Desborough, G.A., 1999, Stratigraphic sections and equivalent uranium (eU), Meade Peak phosphatic shale member of Permian Phosphoria Formation; central part of Rasmussen Ridge, Caribou County, Idaho: U.S. Geological Survey Open-File Report 99-20, 2 cross sections ;on sheet 122 x 92 cm., folded to 31 x 23 cm., https://doi.org/10.3133/ofr9920A.","productDescription":"2 cross sections ;on sheet 122 x 92 cm., folded to 31 x 23 cm.","costCenters":[],"links":[{"id":164385,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":19665,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1999/0020a/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae88e","contributors":{"authors":[{"text":"Tysdal, Russell G.","contributorId":1700,"corporation":false,"usgs":true,"family":"Tysdal","given":"Russell","email":"","middleInitial":"G.","affiliations":[],"preferred":true,"id":207935,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, E. A.","contributorId":87893,"corporation":false,"usgs":true,"family":"Johnson","given":"E.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":207938,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Herring, J. R.","contributorId":43348,"corporation":false,"usgs":true,"family":"Herring","given":"J. R.","affiliations":[],"preferred":false,"id":207937,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Desborough, G. A.","contributorId":34527,"corporation":false,"usgs":true,"family":"Desborough","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":207936,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":22562,"text":"ofr98630 - 1999 - An Overview of the Factors Involved in Evaluating the Geochemical Effects of Highway Runoff on the Environment","interactions":[],"lastModifiedDate":"2012-03-08T17:16:14","indexId":"ofr98630","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-630","title":"An Overview of the Factors Involved in Evaluating the Geochemical Effects of Highway Runoff on the Environment","docAbstract":"Materials washed by rain and snowmelt from highways into adjacent surface waters, ground waters, and ecosystems can pollute water and affect biota. To understand the chemical behavior of any one of these materials and its effects on the environment requires knowledge of the chemistry of the material and how it interacts with other components in the local geochemical system. An integrated watershed approach, therefore, would be the most effective method to assess the effects of highway runoff on local receiving waters. Analysis of one or a few specific contaminants will provide limited and incomplete information and may be misleading in terms of environmental effects. This report addresses the background geochemistry required to model highway runoff and to make realistic assessments of the potential effects of runoff on the environment.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr98630","issn":"0094-9140","collaboration":"Prepared in cooperation with the Federal Highway Administration (A Contribution to the National Highway Runoff Data and Methodology Synthesis)","usgsCitation":"Bricker, O.P., 1999, An Overview of the Factors Involved in Evaluating the Geochemical Effects of Highway Runoff on the Environment: U.S. Geological Survey Open-File Report 98-630, vi, 28 p., https://doi.org/10.3133/ofr98630.","productDescription":"vi, 28 p.","onlineOnly":"Y","costCenters":[{"id":377,"text":"Massachusetts-Rhode Island Water Science Center","active":false,"usgs":true}],"links":[{"id":154457,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9586,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/ofr98-630/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adbe4b07f02db6860b5","contributors":{"authors":[{"text":"Bricker, Owen P.","contributorId":25142,"corporation":false,"usgs":true,"family":"Bricker","given":"Owen","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":188473,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":22834,"text":"ofr9928 - 1999 - Aeromagnetic survey in Wisconsin 1997-98; digital data files","interactions":[],"lastModifiedDate":"2024-08-15T14:12:50.888072","indexId":"ofr9928","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-28","title":"Aeromagnetic survey in Wisconsin 1997-98; digital data files","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9928","issn":"0094-9140","collaboration":"The USGS does not provide technical support for the software associated with this publication.","usgsCitation":"Daniels, D.L., Nicholson, S.W., and Cannon, W., 1999, Aeromagnetic survey in Wisconsin 1997-98; digital data files: U.S. Geological Survey Open-File Report 99-28, 1 CD-ROM, https://doi.org/10.3133/ofr9928.","productDescription":"1 CD-ROM","costCenters":[],"links":[{"id":432758,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0028/ofr9928.zip","text":"CD-ROM","linkFileType":{"id":6,"text":"zip"}},{"id":156951,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Wisconsin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -94.01873873025606,\n              47.70127764471118\n            ],\n            [\n              -94.01873873025606,\n              42.142033348044436\n            ],\n            [\n              -85.7603841752986,\n              42.142033348044436\n            ],\n            [\n              -85.7603841752986,\n              47.70127764471118\n            ],\n            [\n              -94.01873873025606,\n              47.70127764471118\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db689dee","contributors":{"authors":[{"text":"Daniels, D. L.","contributorId":69114,"corporation":false,"usgs":true,"family":"Daniels","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":188962,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nicholson, S. W.","contributorId":79504,"corporation":false,"usgs":true,"family":"Nicholson","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":188964,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cannon, W.F. 0000-0002-2699-8118","orcid":"https://orcid.org/0000-0002-2699-8118","contributorId":70382,"corporation":false,"usgs":true,"family":"Cannon","given":"W.F.","affiliations":[],"preferred":false,"id":188963,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":22108,"text":"ofr9933 - 1999 - Regional geochemical results from the analyses of rock, water, soil, stream sediment and vegetation samples; Fortymile River watershed, East-Central Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:07:52","indexId":"ofr9933","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-33","title":"Regional geochemical results from the analyses of rock, water, soil, stream sediment and vegetation samples; Fortymile River watershed, East-Central Alaska","language":"ENGLISH","publisher":"U.S. Geological Survey :\r\nBooks and Open-File Reports [distributor],","doi":"10.3133/ofr9933","issn":"0094-9140","usgsCitation":"Crock, J., Gough, L.P., Wanty, R., Day, W.C., Wang, B., Gamble, B.M., Henning, M., Brown, Z.A., and Meier, A.L., 1999, Regional geochemical results from the analyses of rock, water, soil, stream sediment and vegetation samples; Fortymile River watershed, East-Central Alaska: U.S. Geological Survey Open-File Report 99-33, 82 p. ill., map ;28 cm., https://doi.org/10.3133/ofr9933.","productDescription":"82 p. ill., map ;28 cm.","costCenters":[],"links":[{"id":154770,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0033/report-thumb.jpg"},{"id":51553,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0033/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c5d1","contributors":{"authors":[{"text":"Crock, J.G.","contributorId":58236,"corporation":false,"usgs":true,"family":"Crock","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":187101,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gough, L. P.","contributorId":64198,"corporation":false,"usgs":true,"family":"Gough","given":"L.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":187102,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wanty, R. B. 0000-0002-2063-6423","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":66704,"corporation":false,"usgs":true,"family":"Wanty","given":"R. B.","affiliations":[],"preferred":false,"id":187103,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Day, W. C.","contributorId":6876,"corporation":false,"usgs":true,"family":"Day","given":"W.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":187100,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wang, Bronwen 0000-0003-1044-2227 bwang@usgs.gov","orcid":"https://orcid.org/0000-0003-1044-2227","contributorId":2351,"corporation":false,"usgs":true,"family":"Wang","given":"Bronwen","email":"bwang@usgs.gov","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":187099,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gamble, B. M.","contributorId":79485,"corporation":false,"usgs":true,"family":"Gamble","given":"B.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":187104,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Henning, M.","contributorId":108141,"corporation":false,"usgs":true,"family":"Henning","given":"M.","affiliations":[],"preferred":false,"id":187107,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Brown, Z. A.","contributorId":82708,"corporation":false,"usgs":true,"family":"Brown","given":"Z.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":187106,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Meier, A. L.","contributorId":81480,"corporation":false,"usgs":true,"family":"Meier","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":187105,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":23941,"text":"ofr9932 - 1999 - Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California","interactions":[],"lastModifiedDate":"2017-03-09T14:08:29","indexId":"ofr9932","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-32","title":"Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California","docAbstract":"New 1:24,000-scale geologic mapping in the Cuyama 30' x 60' quadrangle, in support of the USGS Southern California Areal Mapping Project (SCAMP), is contributing to a more complete understanding of the stratigraphy, structure, and tectonic evolution of the complex junction area between the NW-striking Coast Ranges and EW-striking western Transverse Ranges. The 1:24,000-scale geologic map of the San Guillermo Mountain quadrangle is one of six contiguous 7 1/2' quadrangle geologic maps in the eastern part of the Cuyama map area being compiled for a more detailed portrayal and reevaluation of geologic structures and rock units shown on previous geologic maps of the area (e.g., Dibblee, 1979). The following observations and interpretations are based on the new San Guillermo Mountain geologic compilation: \r\n(1) The new geologic mapping in the northern part of the San Guillermo Mountain quadrangle allows for reinterpretation of fault architecture that bears on potential seismic hazards of the region. Previous mapping had depicted the eastern Big Pine fault (BPF) as a northeast-striking, sinistral strike-slip fault that extends for 30 km northeast of the Cuyama River to its intersection with the San Andreas fault (SAF). In contrast the new mapping indicates that the eastern BPF is a thrust fault that curves from a northeast strike to an east strike, where it is continuous with the San Guillermo thrust fault, and dies out further east about 15 km south of the SAF. This redefined segment of the BPF is a south-dipping, north-directed thrust, with dominantly dip slip components (rakes > 60 deg.), that places Middle Eocene marine rocks (Juncal and Matilija Formations) over Miocene through Pliocene(?) nonmarine rocks (Caliente, Quatal, and Morales Formations). Although a broad northeast-striking fault zone, exhibiting predominantly sinistral components of slip (rakes < 45 deg.), extends to the SAF as previously mapped, the fault zone does not connect to the southwest with the BPF but instead curves into a southwest-directed thrust fault system a short distance north of the BPF. Oligocene to Pliocene(?) nonmarine sedimentary and volcanic rocks of the Plush Ranch, Caliente, and Morales(?) Formations are folded on both sides of this fault zone (informally named the Lockwood Valley fault zone [LVFZ] on the map). South-southeast of the LVFZ overturned folds have southward vergence. Several moderate-displacement (< 50 m), mainly northwest-dipping thrust and reverse faults, exhibiting mostly sinistral-oblique slip, flank and strike parallel to the overturned folds. The fold vergence and thrust direction associated with the LVFZ is opposite to that of the redefined BPF, providing further evidence that the two faults are distinct structures. These revised fault interpretations bring into question earlier estimates of net sinistral strike-slip displacement of as much as 13 km along the originally defined eastern BPF, which assumed structural connection with the LVFZ. Also, despite sparse evidence for repeated Quaternary movement on the LVFZ (e.g., Dibblee, 1982), the potential for a large earthquake involving coseismic slip on both the LVFZ and the central BPF to the southwest may not be as great as once believed. (2) Several generations of Pleistocene and younger dissected alluvial terrace and fan deposits sit at various levels above modern stream channels throughout the quadrangle. These deposits give testimony to the recent uplift and related fault deformation that has occurred in the area. (3) A vast terrane of Eocene marine sedimentary rocks (Juncal and Matilija Formations and Cozy Dell Shale) exposed south of the Big Pine fault forms the southern two-thirds of the San Guillermo Mountain quadrangle. Benthic foraminifers collected from various shale intervals within the Juncal Formation indicate a Middle Eocene age (Ulatisian) for the entire formation (K. McDougall, unpub. data, 1998) and deposition at paleodepths as great as 2,000 m (i.e., lowe","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9932","issn":"0094-9140","usgsCitation":"Minor, S., 1999, Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California: U.S. Geological Survey Open-File Report 99-32, https://doi.org/10.3133/ofr9932.","costCenters":[],"links":[{"id":154924,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1648,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0032/","linkFileType":{"id":5,"text":"html"}},{"id":109852,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22573.htm","linkFileType":{"id":5,"text":"html"},"description":"22573"}],"country":"United States","state":"California","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67ac75","contributors":{"authors":[{"text":"Minor, S.A.","contributorId":65047,"corporation":false,"usgs":true,"family":"Minor","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":191012,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":24061,"text":"ofr9934 - 1999 - Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database","interactions":[],"lastModifiedDate":"2023-06-14T14:47:54.029909","indexId":"ofr9934","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-34","title":"Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database","docAbstract":"The Hart Peak 1:24,000-scale quadrangle is located about 12 km southwest of Searchlight, Nevada, comprehending the eastern part of the Castle Peaks, California, and most of the Castle Mountains and the northwestern part of the Piute Range, in California and Nevada. The Castle Peaks area constitutes the northeasternmost part of the northeast-trending New York Mountains. The Castle Mountains straddle the California-Nevada State line between the Castle Peaks and north-trending Piute Range. The southern part of the Piute Range, near Civil War-era Fort Piute, adjoins Homer Mountain mapped by Spencer and Turner (1985). Adjacent and nearby 1:24,000-scale quadrangles include Castle Peaks, East of Grotto Hills, Homer Mountain, and Signal Hill, Calif.; also Tenmile Well and West of Juniper Mine, Calif. and Nev.\n\nThe oldest rocks in the Hart Peak quadrangle are Early Proterozoic gneiss and foliated granite that crop out in the northern part of the quadrangle on the eastern flank of the Castle Peaks and in the central Castle Mountains (Wooden and Miller, 1990). Paleozoic rocks are uncommon and Mesozoic granitic rocks are not found in the map area. The older rocks are overlain nonconformably by several km of Miocene volcanic deposits, which accumulated in local basins. Local dikes and domes are sources of most Miocene eruptive units; younger Miocene intrusions cut all the older rocks. Upper Miocene to Quaternary gravel deposits interfinger with the uppermost volcanic flows; the contact between volcanic rocks and the gravel deposits is unconformable locally. Canyons and intermontane valleys contain dissected Quaternary alluvialfan deposits that are mantled by active drainage and alluvial fan detritus.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9934","usgsCitation":"Nielson, J.E., Turner, R., and Bedford, D., 1999, Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database: U.S. Geological Survey Open-File Report 99-34, Pamphlet: 44 p., 1 Plate: 40.00 x 36.00 inches, https://doi.org/10.3133/ofr9934.","productDescription":"Pamphlet: 44 p., 1 Plate: 40.00 x 36.00 inches","numberOfPages":"44","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":1731,"rank":10,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/0034/","linkFileType":{"id":5,"text":"html"}},{"id":108386,"rank":12,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/pdf/hpk_geo.pdf","linkFileType":{"id":5,"text":"html"},"description":"13175"},{"id":156778,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0034/report-thumb.jpg"},{"id":53235,"rank":11,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1999/0034/pdf/hpk_map.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":284851,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_geol.e00.gz"},{"id":284852,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_str.e00.gz"},{"id":284853,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_smpl.e00.gz"},{"id":284854,"rank":5,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_shr.e00.gz"},{"id":284855,"rank":6,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/of99-34_3a.tar.gz"},{"id":284856,"rank":7,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/import.aml"},{"id":284857,"rank":8,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/of99-34_2a.txt"},{"id":397727,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13175.htm"}],"scale":"24000","projection":"Universal Transverse Mercator projection","datum":"National Geodetic Datum of 1929","country":"United States","state":"California, Nevada","otherGeospatial":"Hart Peak quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -115.125,35.25 ], [ -115.125,35.375 ], [ -115.0,35.375 ], [ -115.0,35.25 ], [ -115.125,35.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5c8be4b0b290850fa8a4","contributors":{"authors":[{"text":"Nielson, Jane E.","contributorId":9701,"corporation":false,"usgs":true,"family":"Nielson","given":"Jane","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":191238,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, Ryan D.","contributorId":76596,"corporation":false,"usgs":true,"family":"Turner","given":"Ryan D.","affiliations":[],"preferred":false,"id":191240,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bedford, David R.","contributorId":26352,"corporation":false,"usgs":true,"family":"Bedford","given":"David R.","affiliations":[],"preferred":false,"id":191239,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":24189,"text":"ofr9941 - 1999 - Alaska resource data file: Trinity Islands quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T18:46:46.898742","indexId":"ofr9941","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-41","title":"Alaska resource data file: Trinity Islands quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9941","issn":"0094-9140","usgsCitation":"Pilcher, S.H., 1999, Alaska resource data file: Trinity Islands quadrangle: U.S. Geological Survey Open-File Report 99-41, 12 p., https://doi.org/10.3133/ofr9941.","productDescription":"12 p.","costCenters":[],"links":[{"id":1595,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389179,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16270.htm"},{"id":53332,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0041/ofr9941.pdf","text":"Report","size":"102 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 99-41 PDF"},{"id":157132,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0041/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Trinity Islands quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156,\n              56.0\n            ],\n            [\n              -154,\n              56.0\n            ],\n            [\n              -154,\n              57.0\n            ],\n            [\n              -156,\n              57.0\n            ],\n            [\n              -156,\n              56.0\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688322","contributors":{"authors":[{"text":"Pilcher, S. H.","contributorId":41861,"corporation":false,"usgs":true,"family":"Pilcher","given":"S.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":191469,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":23644,"text":"ofr9923 - 1999 - HYPOELLIPSE; a computer program for determining local earthquake hypocentral parameters, magnitude, and first-motion pattern","interactions":[],"lastModifiedDate":"2012-06-13T01:01:47","indexId":"ofr9923","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-23","title":"HYPOELLIPSE; a computer program for determining local earthquake hypocentral parameters, magnitude, and first-motion pattern","docAbstract":"This report provides Fortran source code and program manuals for HYPOELLIPSE, a computer program for determining hypocenters and magnitudes of near regional earthquakes and the ellipsoids that enclose the 68-percent confidence volumes of the computed hypocenters. HYPOELLIPSE was developed to meet the needs of U.S. Geological Survey (USGS) scientists studying crustal and sub-crustal earthquakes recorded by a sparse regional seismograph network. The program was extended to locate hypocenters of volcanic earthquakes recorded by seismographs distributed on and around the volcanic edifice, at elevations above and below the hypocenter. HYPOELLIPSE was used to locate events recorded by the USGS southern Alaska seismograph network from October 1971 to the early 1990s. Both UNIX and PC/DOS versions of the source code of the program are provided along with sample runs.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9923","issn":"0094-9140","usgsCitation":"Lahr, J.C., 1999, HYPOELLIPSE; a computer program for determining local earthquake hypocentral parameters, magnitude, and first-motion pattern (Version 1.1, Revised 2012): U.S. Geological Survey Open-File Report 99-23, 1 v. 116 p. :ill. ;28 cm., https://doi.org/10.3133/ofr9923.","productDescription":"1 v. 116 p. :ill. ;28 cm.","onlineOnly":"Y","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":379,"text":"Menlo Park Science Center","active":false,"usgs":true}],"links":[{"id":262842,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr_99_23.gif"},{"id":257486,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0023/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.1, Revised 2012","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db649e82","contributors":{"authors":[{"text":"Lahr, John C.","contributorId":20328,"corporation":false,"usgs":true,"family":"Lahr","given":"John","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":190474,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":23596,"text":"ofr9929 - 1999 - Lithology and aggregate quality attributes for the digital geologic map of Colorado","interactions":[],"lastModifiedDate":"2017-05-31T11:39:01","indexId":"ofr9929","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-29","title":"Lithology and aggregate quality attributes for the digital geologic map of Colorado","docAbstract":"This geologic map was prepared as a part of a study of digital\r\n        methods and techniques as applied to complex geologic maps.  The\r\n        geologic map was digitized from the original scribe sheets used to\r\n        prepare the published Geologic Map of Colorado (Tweto 1979).\r\n        Consequently the digital version is at 1:500,000 scale using the\r\n        Lambert Conformal Conic map projection parameters of the state base\r\n        map.  Stable base contact prints of the scribe sheets were scanned on\r\n        a Tektronix 4991 digital scanner.  The scanner automatically converts\r\n        the scanned image to an ASCII vector format. These vectors were\r\n        transferred to a VAX minicomputer, where they were then loaded into\r\n        ARC/INFO.  Each vector and polygon was given attributes derived from\r\n        the original 1979 geologic map.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9929","issn":"0094-9140","usgsCitation":"Knepper, D.H., Green, G.N., and Langer, W.H., 1999, Lithology and aggregate quality attributes for the digital geologic map of Colorado: U.S. Geological Survey Open-File Report 99-29, HTML Document; Report: 22 p., https://doi.org/10.3133/ofr9929.","productDescription":"HTML Document; Report: 22 p.","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":154847,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":341918,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0029/of99-29.pdf","text":"Report","size":"142 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,{"id":24347,"text":"ofr995 - 1999 - Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment","interactions":[],"lastModifiedDate":"2017-03-09T12:46:49","indexId":"ofr995","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"99-5","title":"Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment","docAbstract":"<p>This report documents a comparison of two methods of resource calculation that are being used in the National Coal Resource Assessment project of the U.S. Geological Survey (USGS). Tewalt (1998) discusses the history of using computer software packages such as GARNET (Graphic Analysis of Resources using Numerical Evaluation Techniques), GRASS (Geographic Resource Analysis Support System), and the vector-based geographic information system (GIS) ARC/INFO (ESRI, 1998) to calculate coal resources within the USGS. The study discussed here, compares resource calculations using ARC/INFO* (ESRI, 1998) and EarthVision (EV)* (Dynamic Graphics, Inc. 1997) for the coal-bearing John Henry Member of the Straight Cliffs Formation of Late Cretaceous age in the Kaiparowits Plateau of southern Utah. Coal resource estimates in the Kaiparowits Plateau using ARC/INFO are reported in Hettinger, and others, 1996. </p>","language":"English","publisher":"U.S. Geological Survey,","publisherLocation":"Reston, VA","doi":"10.3133/ofr995","issn":"0094-9140","usgsCitation":"Roberts, L., and Biewick, L., 1999, Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment: U.S. Geological Survey Open-File Report 99-5, 7 p., https://doi.org/10.3133/ofr995.","productDescription":"7 p.","costCenters":[],"links":[{"id":156749,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0005/report-thumb.jpg"},{"id":53447,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0005/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":1708,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0005/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a07e4b07f02db5f969a","contributors":{"authors":[{"text":"Roberts, L.N.","contributorId":71559,"corporation":false,"usgs":true,"family":"Roberts","given":"L.N.","email":"","affiliations":[],"preferred":false,"id":191731,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Biewick, L.R.","contributorId":61067,"corporation":false,"usgs":true,"family":"Biewick","given":"L.R.","email":"","affiliations":[],"preferred":false,"id":191730,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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