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(116 p., 3 sheets - PGS), https://doi.org/10.3133/ofr77420.","productDescription":"vi, 119 leaves :ill., maps (1 fold. in pocket) ;28 cm.; (116 p., 3 sheets - PGS)","costCenters":[],"links":[{"id":144097,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db6058e6","contributors":{"authors":[{"text":"Thayer, Thomas Prence","contributorId":18371,"corporation":false,"usgs":true,"family":"Thayer","given":"Thomas","email":"","middleInitial":"Prence","affiliations":[],"preferred":false,"id":163098,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Case, James E.","contributorId":68702,"corporation":false,"usgs":true,"family":"Case","given":"James","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":163099,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stotelmeyer, Ronald B.","contributorId":104051,"corporation":false,"usgs":true,"family":"Stotelmeyer","given":"Ronald","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":163100,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":43818,"text":"ofr77815 - 1977 - Holocene traces of the Imperial fault in south-central Imperial County, California","interactions":[],"lastModifiedDate":"2021-08-17T19:15:59.508199","indexId":"ofr77815","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-815","title":"Holocene traces of the Imperial fault in south-central Imperial County, California","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr77815","usgsCitation":"Sharp, R.V., 1977, Holocene traces of the Imperial fault in south-central Imperial County, California: U.S. Geological Survey Open-File Report 77-815, 5 Plates: 22.00 x 30 inches or smaller, https://doi.org/10.3133/ofr77815.","productDescription":"5 Plates: 22.00 x 30 inches or smaller","costCenters":[],"links":[{"id":134894,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":99118,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0815/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":99117,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0815/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":99116,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0815/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":388023,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_14536.htm"},{"id":99120,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0815/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":99119,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0815/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"24000","country":"United States","state":"California","county":"Imperial County","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.2630615234375,\n 32.71104439078295\n ],\n [\n -115.31249999999999,\n 33.091541548655215\n ],\n [\n -115.92224121093749,\n 33.03399561940715\n ],\n [\n -115.850830078125,\n 32.650938361757355\n ],\n [\n -115.2630615234375,\n 32.71104439078295\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62bf29","contributors":{"authors":[{"text":"Sharp, Robert V.","contributorId":89857,"corporation":false,"usgs":true,"family":"Sharp","given":"Robert","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":228751,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":19486,"text":"ofr77803 - 1977 - Summary of hydrologic data collected during 1975 in Dade County, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:07:29","indexId":"ofr77803","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-803","title":"Summary of hydrologic data collected during 1975 in Dade County, Florida","docAbstract":"During the 1975 calendar year rainfall in Dade County, Fla., was 14.89 inches below the long-term average (57.17 in.). Ground-water levels ranged from 0.1 foot above to 1.1 feet below average. The highest and lowest ground-water levels for the year were both 1 foot below their long-term averages. In the Hialeah-Miami Springs area, ground-water levels in wells near the centers of the heaviest pumping ranged from 9.8 to 11.2 feet below mean sea level and in the Southwest well field area, ground-water levels near the centers of pumping ranged from 3.5 feet above to 3.4 feet below mean sea level. The combined average daily discharge from eight major streams and canals that flow into Biscayne Bay was 1,014 cubic feet per second (cfs), 124 cfs above the combined average daily flow for the 1974 water year. The combined average daily flow through the Tamiami Canal outlets was 568 cfs, 202 cfs below that of the 1974 water year. The position of the salt front in 1975 in the coastal part of the Biscayne aquifer was about the same as in 1974 except at Miami International Airport and Homestead Air Force Base where the salt front had encroached farther inland. (Woodard-USGS)","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77803","usgsCitation":"Hull, J.E., and Beaven, T., 1977, Summary of hydrologic data collected during 1975 in Dade County, Florida: U.S. Geological Survey Open-File Report 77-803, 120 p. :ill., maps ;27 cm., https://doi.org/10.3133/ofr77803.","productDescription":"120 p. :ill., maps ;27 cm.","costCenters":[],"links":[{"id":151882,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db699184","contributors":{"authors":[{"text":"Hull, John E.","contributorId":15616,"corporation":false,"usgs":true,"family":"Hull","given":"John","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":180993,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beaven, T.R.","contributorId":84757,"corporation":false,"usgs":true,"family":"Beaven","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":180994,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":9250,"text":"ofr77295 - 1977 - Interpretation of Landsat images: Qatar (preliminary report)","interactions":[],"lastModifiedDate":"2012-02-02T00:06:22","indexId":"ofr77295","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-295","title":"Interpretation of Landsat images: Qatar (preliminary report)","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77295","usgsCitation":"Grolier, M.J., 1977, Interpretation of Landsat images: Qatar (preliminary report): U.S. Geological Survey Open-File Report 77-295, 4 leaves :col. ill. ;27 cm.; (3 p. - PGS), https://doi.org/10.3133/ofr77295.","productDescription":"4 leaves :col. ill. ;27 cm.; (3 p. - PGS)","costCenters":[],"links":[{"id":143540,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ae2e0","contributors":{"authors":[{"text":"Grolier, Maurice J.","contributorId":98292,"corporation":false,"usgs":true,"family":"Grolier","given":"Maurice","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":159356,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":11959,"text":"ofr77762 - 1977 - Application of heat-flow techniques to geothermal energy exploration, Leach Hot Springs area, Grass Valley, Nevada","interactions":[],"lastModifiedDate":"2012-02-02T00:06:36","indexId":"ofr77762","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-762","title":"Application of heat-flow techniques to geothermal energy exploration, Leach Hot Springs area, Grass Valley, Nevada","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77762","usgsCitation":"Sass, J., Ziagos, J., Wollenberg, H., Munroe, R.J., di Somma, D.E., and Lachenbruch, A., 1977, Application of heat-flow techniques to geothermal energy exploration, Leach Hot Springs area, Grass Valley, Nevada: U.S. Geological Survey Open-File Report 77-762, [5], i, 125 p. :ill., maps ;27 cm.; 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E.","contributorId":31385,"corporation":false,"usgs":true,"family":"di Somma","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":164402,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lachenbruch, A.H.","contributorId":76737,"corporation":false,"usgs":true,"family":"Lachenbruch","given":"A.H.","affiliations":[],"preferred":false,"id":164405,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":11781,"text":"ofr77375 - 1977 - Reconnaissance report of geotechnical observations for the 4 March 1977 Romanian earthquake","interactions":[],"lastModifiedDate":"2012-02-02T00:06:34","indexId":"ofr77375","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-375","title":"Reconnaissance report of geotechnical observations for the 4 March 1977 Romanian earthquake","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77375","usgsCitation":"Youd, T.L., 1977, Reconnaissance report of geotechnical observations for the 4 March 1977 Romanian earthquake: U.S. Geological Survey Open-File Report 77-375, 18 leaves :ill., maps ;28 cm., https://doi.org/10.3133/ofr77375.","productDescription":"18 leaves :ill., maps ;28 cm.","costCenters":[],"links":[{"id":145001,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a62e4b07f02db636797","contributors":{"authors":[{"text":"Youd, T. Leslie","contributorId":107678,"corporation":false,"usgs":true,"family":"Youd","given":"T.","email":"","middleInitial":"Leslie","affiliations":[],"preferred":false,"id":163721,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":9248,"text":"ofr77299 - 1977 - Interpretation of Landsat images: Kuwait (preliminary report)","interactions":[],"lastModifiedDate":"2012-02-02T00:06:22","indexId":"ofr77299","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-299","title":"Interpretation of Landsat images: Kuwait (preliminary report)","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77299","usgsCitation":"Grolier, M.J., 1977, Interpretation of Landsat images: Kuwait (preliminary report): U.S. Geological Survey Open-File Report 77-299, 3 leaves :col. ill. ;27 cm.; (2 p. - PGS), https://doi.org/10.3133/ofr77299.","productDescription":"3 leaves :col. ill. ;27 cm.; (2 p. - PGS)","costCenters":[],"links":[{"id":143538,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66d352","contributors":{"authors":[{"text":"Grolier, Maurice J.","contributorId":98292,"corporation":false,"usgs":true,"family":"Grolier","given":"Maurice","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":159354,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":9482,"text":"ofr7755 - 1977 - Uranium and thorium in the middle Precambrian Estes Conglomerate, Nemo District, Lawrence County, South Dakota: a preliminary report","interactions":[],"lastModifiedDate":"2012-02-02T00:06:15","indexId":"ofr7755","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-55","title":"Uranium and thorium in the middle Precambrian Estes Conglomerate, Nemo District, Lawrence County, South Dakota: a preliminary report","docAbstract":"The Estes Conglomerate, which is exposed in the Nemo District on the northeastern flank of the Black Hills, South Dakota, is inferred to be of early middle Precambrian age (early Precambrian X or Paleoaphebian) and to be resting on late early Precambrian (late Precambrian W) granitic continental crust. The Estes contains beds of quartzite and quartz-pebble conglomerate (oligomictic conglomerate) with matrices of micaceous quartzite that locally contain 5 to 25 percent dispersed pyrite. Highly oxidized outcrop samples of the oligomictic conglomerate have anomalously high contents of both uranium (10 to 40 ppm) and thorium (20 to 800 ppm). High thorium values in the oligomictic conglomerate favor a placer mechanism for the concentration of radioactive minerals and appear to eliminate the possibility of epigenetic processes, such as reduction of uranium by pyrite. The presence of abundant old prospect pits and of several abandoned mines suggests that these conglomerates may also contain some gold. Early prospectors may have been attracted by the gossan produced by oxidation of pyrite. Uranium in the Estes Conglomerate may be of similar origin to the economically very important uranium deposits in the Matinenda Formation of the Elliot Lake District, Ontario. Because uranium is rapidly dissolved in acidic, oxygenated ground water, such as is present where pyrite is weathering, most of the uranium originally present in the analyzed samples has probably been leached out. Conglomerate located below the zone of weathering and oxidation has good potential for economic uranium deposits.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr7755","usgsCitation":"Hills, F.A., 1977, Uranium and thorium in the middle Precambrian Estes Conglomerate, Nemo District, Lawrence County, South Dakota: a preliminary report: U.S. Geological Survey Open-File Report 77-55, ii, 27 leaves :ill., maps ;27 cm.; (26 p. - PGS), https://doi.org/10.3133/ofr7755.","productDescription":"ii, 27 leaves :ill., maps ;27 cm.; (26 p. - PGS)","costCenters":[],"links":[{"id":141906,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1977/0055/report-thumb.jpg"},{"id":37190,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1977/0055/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db605c0b","contributors":{"authors":[{"text":"Hills, F. Allan","contributorId":90309,"corporation":false,"usgs":true,"family":"Hills","given":"F.","email":"","middleInitial":"Allan","affiliations":[],"preferred":false,"id":159767,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":9634,"text":"ofr77257 - 1977 - Water table in the surficial aquifer and potentiometric surface of the Floridan Aquifer in selected well fields, west-central Florida, May 1976","interactions":[],"lastModifiedDate":"2012-02-02T00:06:22","indexId":"ofr77257","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-257","title":"Water table in the surficial aquifer and potentiometric surface of the Floridan Aquifer in selected well fields, west-central Florida, May 1976","docAbstract":"The water table in the surficial aquifer (sand) and the potentiometric surface of the Floridan aquifer (limestone) in a 1,200-square-mile area in west-central Florida are mapped semiannually by the U.S. Geological Survey. Maps are prepared each May and September to coincide with seasonal low and high ground-water levels. The mapped area contains nine producing well fields which supplied 92.8 million gallons on May 12, 1976 to municipalities along the Gulf Coast. This pumpage came from the Floridan aquifer, the major aquifer in the State of Florida. The effect of well-field withdrawals is shown on the maps as cones of depression in both the potentiometric and water-table surfaces. The May 1976 maps indicate that water levels have declined below sea level in some areas. The decline results from reduced recharge during the dry spring combined with an increase in pumpage for lawn irrigation.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77257","usgsCitation":"Hutchinson, C.B., and Mills, L.R., 1977, Water table in the surficial aquifer and potentiometric surface of the Floridan Aquifer in selected well fields, west-central Florida, May 1976: U.S. Geological Survey Open-File Report 77-257, 14 leaves :4 maps (fold.) ;29 cm.; scale 1:24,000, https://doi.org/10.3133/ofr77257.","productDescription":"14 leaves :4 maps (fold.) ;29 cm.; scale 1:24,000","costCenters":[],"links":[{"id":143570,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1977/0257/report-thumb.jpg"},{"id":37363,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0257/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37364,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0257/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37365,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0257/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37366,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0257/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37367,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1977/0257/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"24000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f1e4b07f02db5ee413","contributors":{"authors":[{"text":"Hutchinson, C. B.","contributorId":94655,"corporation":false,"usgs":true,"family":"Hutchinson","given":"C.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":160025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mills, L. R.","contributorId":26281,"corporation":false,"usgs":true,"family":"Mills","given":"L.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":160024,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":9398,"text":"ofr77812 - 1977 - Low-flow characteristics of streams on the Olympic Peninsula, Washington","interactions":[],"lastModifiedDate":"2012-02-02T00:06:17","indexId":"ofr77812","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-812","title":"Low-flow characteristics of streams on the Olympic Peninsula, Washington","docAbstract":"Streams in lowland basins of the Olympic Peninsula, Washington, generally have their low flows in summer and peak flows in winter, whereas streams originating at higher elevations in the mountains have their low flows in late summer-early fall and they have both winter and spring peak flows. Data from long-term stations indicate no important trend in low flows during 1940-73 but they do indicate that low flows generally were lower during the relatively dry 1940 's than during the relatively wet 1950-73 period. The magnitude and frequency of 7-day low flows were estimated for 116 sites either from frequency analyses of a data at long-term stations or from correlation of data at a short-term station with data at an appropriate long-term station. (Woodard-USGS)","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77812","usgsCitation":"Haushild, W., and LaFrance, D., 1977, Low-flow characteristics of streams on the Olympic Peninsula, Washington: U.S. Geological Survey Open-File Report 77-812, v, 16 leaves :ill., maps (1 fold.) ;33 cm.; (29 p., 1 sheet, scale 1:250,000 - PGS), https://doi.org/10.3133/ofr77812.","productDescription":"v, 16 leaves :ill., maps (1 fold.) ;33 cm.; (29 p., 1 sheet, scale 1:250,000 - PGS)","costCenters":[],"links":[{"id":142939,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1977/0812/report-thumb.jpg"},{"id":37114,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1977/0812/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db648716","contributors":{"authors":[{"text":"Haushild, W.L.","contributorId":48953,"corporation":false,"usgs":true,"family":"Haushild","given":"W.L.","affiliations":[],"preferred":false,"id":159616,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LaFrance, D.E.","contributorId":69986,"corporation":false,"usgs":true,"family":"LaFrance","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":159617,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":11813,"text":"ofr7756 - 1977 - Ground-water resources and geology of Colquitt County, Georgia","interactions":[],"lastModifiedDate":"2016-12-14T10:12:07","indexId":"ofr7756","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-56","title":"Ground-water resources and geology of Colquitt County, Georgia","docAbstract":"Limestone beds of Eocene, Oligocene, and lower Miocene age, called the principal artesian aquifer, are the chief source of ground water for Colquitt County. Because streams are small, undependable and relatively inaccessible to most users, ground water is the most important source for increased industrial and agricultural water use. Southeast of Moultrie the principal artesian aquifer is very productive, and has transmissivity in excess of 145,000 feet squared per day (13,500 meters squared per day). A structural or paleogeographic feature called the Suwannee strait traverses the county from near the southwest corner to the northeast corner. In this strait, limestone in the principal artesian aquifer is partly replaced by fine-grained clastic sediment, impairing transmissivity and making wells hard to construct. Transmissivity is much lower northwest of the strait than it is southeast, probably because of facies changes in the aquifer.
\nIn the belt of the hypothesized Ochlockonee fault, water containing greater-than-usual concentrations of dissolved solids is produced. This anomaly could be the result of the fault having acted as a conduit when the vertical hydraulic gradient was upward from a deeper aquifer, or be the result of the movement of ground water from a sulfate-rich source in the sediments of the Suwannee strait. In south-central Colquitt County, clay-capped permeable beds extending above potentiometric surfaces create conditions favorable for breathing wells.
\nPredominantly clastic beds of Miocene age overlie the Suwannee Limestone. These beds have a transmissivity of about 2,280 feet squared per day (215 meters squared per day), but they are of comparatively little importance because larger yields can be obtained from the underlying principal artesian aquifer. Moreover, wells are difficult to construct in the poorly consolidated clastic sediments, and water from these shallow beds is likely to be depleted during droughts.
\nThe ground water is generally hard, but is otherwise of good quality. One exception is near the hypothesized Ochlockonee fault where water contains higher-than-usual concentrations of various ions, especially sulfate. Another exception occurs along the axis of the Suwannee strait where clay minerals in the channel facies may soften the water by ion exchange.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Doraville, Georgia","doi":"10.3133/ofr7756","collaboration":"Prepared in cooperation with Georgia Department of Natural Resources, Geologic and Water Resources Division","usgsCitation":"Zimmerman, E.A., 1977, Ground-water resources and geology of Colquitt County, Georgia: U.S. Geological Survey Open-File Report 77-56, vi, 41 p., https://doi.org/10.3133/ofr7756.","productDescription":"vi, 41 p.","numberOfPages":"52","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":144821,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr7756.jpg"},{"id":325511,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1977/0056/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Georgia","county":"Colquitt 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E. A.","contributorId":75533,"corporation":false,"usgs":true,"family":"Zimmerman","given":"E.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":163774,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":9415,"text":"ofr77706 - 1977 - Geochemistry and mineralogy of the carbonates of the Creede mining district, Colorado","interactions":[],"lastModifiedDate":"2012-02-02T00:06:15","indexId":"ofr77706","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1977","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":"77-706","title":"Geochemistry and mineralogy of the carbonates of the Creede mining district, Colorado","docAbstract":"This paper describes the results of a study of the carbonate gangue in the silver-base metal ore deposit of the Creede mining district, located in Tertiary volcanic rocks of the central San Juan Mountains, southwestern Colorado. Two carbonate stages can be distinguished and defined on the basis of mineral association, compositional range and position in the sequence of ore deposition. Electron microprobe analyses show that the early pre-ore carbonate stage is comprised of rhodochrosite with a compositional range of 68 to 93 mole percent MnCO3, 7 to 32 mole percent FeCO3, 2 to 15 mole percent CaCO3, and 0.5 to 4 mole percent MgCO3. The later intra-ore carbonate stage is made up of siderite-manganosiderite with a broad range of iron content (33 to 94 mole percent FeCO3; 6 to 67 mole percent MnCO3; 1 to 13 mole percent CaCO3; and 1 to 10 mole percent MgCO3). Both carbonate stages are spatially restricted within the vein system, the rhodochrosite limited to the southern third and the siderite limited to the northern two-thirds. The two stages have not been found at the same sample locality. \r\n\r\nThe two stages of carbonate define two of the five main depositional stages in the history of the Creede hydrothermal system and thereby document broad scale variations within the depositing, and continually evolving fluids. However, the complexity of the textural and mineralogical variations within each carbonate stage limits their usefulness in unraveling the finer details of the character of the ore fluids. The frequently massive rhodochroslte has undergone several periods of leaching and regrowth which, except at one locality, cannot be resolved by compositional, textural or color variations. Although some compositionally zoned siderite rhombs have been documented, the siderite, too, has had a complicated history of leaching and regrowth. The zoning indicates (i) an early low-calcium siderite + hematite growth followed by (2) relatively high-calcium siderite depositlon (without hematite) followed by (3) low-calcium siderite deposition without hematite. The composition of the high-calcium siderite lies well outside of the recognized stability field for siderite at 250?C and, therefore, is considered either a metastable phase or possibly a new mineral. \r\n\r\nCarbon and oxygen isotopic compositions of the carbonates together with the hydrogen isotopic composition of inclusion fluids suggest that the fluids depositing the carbonates either were deep-seated in origin, or, less likely, were meteoric waters which came in contact with a large volume of magmatic rock with which it exchanged isotopes. The oxygen and hydrogen isotopic compositions of the fluids that deposited the carbonates are significantly different from those that yielded the other vein minerals (sphalerite, chlorite, sericite, quartz, adularla). The latter minerals appear to-have been deposited from two distinctive fluids of meteoric origin. The stability fields of minerals present during the carbonate stages have been calculated for 250?Co The results indicate that conditions during carbonate deposition were not drastically different from those suggested by Barton and others (1977) for main-stage ore deposition, although little ore, if any, was deposited during the carbonate stages. A new value for the free energy of formation of siderite was calculated since all of the most recently published values predict too small a stability field for the siderite based on the occurrence of siderite at Creede, The change to the more iron-rich composition of the later stage carbonate was probably controlled by the pyrite-chlorite buffer which was not present during early-stage carbonate deposition.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr77706","usgsCitation":"Wetlaufer, P.H., 1977, Geochemistry and mineralogy of the carbonates of the Creede mining district, Colorado: U.S. Geological Survey Open-File Report 77-706, x, 134 leaves :ill. (1 fold. in pocket) maps ;28 cm., https://doi.org/10.3133/ofr77706.","productDescription":"x, 134 leaves :ill. (1 fold. in pocket) maps ;28 cm.","costCenters":[],"links":[{"id":141799,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1977/0706/report-thumb.jpg"},{"id":37124,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1977/0706/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37125,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1977/0706/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1fe4b07f02db6ab712","contributors":{"authors":[{"text":"Wetlaufer, Pamela Heald","contributorId":35317,"corporation":false,"usgs":true,"family":"Wetlaufer","given":"Pamela","email":"","middleInitial":"Heald","affiliations":[],"preferred":false,"id":159647,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}