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PGS)","costCenters":[],"links":[{"id":143334,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f3e4b07f02db5efb78","contributors":{"authors":[{"text":"Schulz, Sandra S.","contributorId":104864,"corporation":false,"usgs":true,"family":"Schulz","given":"Sandra","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":162456,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burford, Robert O.","contributorId":52560,"corporation":false,"usgs":true,"family":"Burford","given":"Robert","middleInitial":"O.","affiliations":[],"preferred":false,"id":162454,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nason, Robert D.","contributorId":57073,"corporation":false,"usgs":true,"family":"Nason","given":"Robert","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":162455,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":10225,"text":"ofr76861 - 1976 - Multivariate analysis of geophysical and mineralogical data from uranium-bearing sandstones","interactions":[],"lastModifiedDate":"2012-02-02T00:06:29","indexId":"ofr76861","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-861","title":"Multivariate analysis of geophysical and mineralogical data from uranium-bearing sandstones","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr76861","usgsCitation":"Maxwell, E.L., Kluth, M.J., and Weiner, M., 1976, Multivariate analysis of geophysical and mineralogical data from uranium-bearing sandstones: U.S. Geological Survey Open-File Report 76-861, 45 leaves :ill. ;27 cm., https://doi.org/10.3133/ofr76861.","productDescription":"45 leaves :ill. ;27 cm.","costCenters":[],"links":[{"id":144179,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0861/report-thumb.jpg"},{"id":38091,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0861/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b02e4b07f02db698aac","contributors":{"authors":[{"text":"Maxwell, Eugene L.","contributorId":88355,"corporation":false,"usgs":true,"family":"Maxwell","given":"Eugene","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":161033,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kluth, Mary Jo","contributorId":82315,"corporation":false,"usgs":true,"family":"Kluth","given":"Mary","email":"","middleInitial":"Jo","affiliations":[],"preferred":false,"id":161032,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Weiner, Mitchell","contributorId":10808,"corporation":false,"usgs":true,"family":"Weiner","given":"Mitchell","email":"","affiliations":[],"preferred":false,"id":161031,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":39608,"text":"pp1011 - 1976 - The environment of South Florida; a summary report","interactions":[],"lastModifiedDate":"2012-02-02T00:10:18","indexId":"pp1011","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1011","title":"The environment of South Florida; a summary report","docAbstract":"Man has altered the original south Florida ecosystem to a new three-part ecosystem which incorporates an agricultural component, an urban component, and a component of the original ecosystem that is largely unchanged but still has been affected by man. These components are interrelated through the flow of energy and material. The ecosystem of south Florida has undergone extensive alteration for 70 years. About 35 percent (3 ,000 square miles) of the original habitat of the ecosystem has been replaced by agriculture or urbanization. The remaining natural habitat is stressed by exotic plants and animal, changes in water levels and flows, severe fires, pollution, loss of animal and plant populations, and by further growth and development. Man 's most dramatic and long-term effects on the ecosystem have resulted from drainage. Wetlands originally occupied about 75 percent of south Florida; through the years large areas of this land have been drained. In parts of southeast Florida, drainage has lowered water levels 5 to 6 feet below the 1900 level and stressed natural systems. (Woodard-USGS)","language":"ENGLISH","doi":"10.3133/pp1011","usgsCitation":"McPherson, B.F., Hendrix, G., Klein, H., and Tyus, H., 1976, The environment of South Florida; a summary report: U.S. Geological Survey Professional Paper 1011, 81 p., https://doi.org/10.3133/pp1011.","productDescription":"81 p.","costCenters":[],"links":[{"id":3664,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://sofia.usgs.gov/publications/papers/pp1011/","linkFileType":{"id":5,"text":"html"}},{"id":124189,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1011/report-thumb.jpg"},{"id":67193,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1011/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9be4b07f02db65dd35","contributors":{"authors":[{"text":"McPherson, B. F.","contributorId":62983,"corporation":false,"usgs":true,"family":"McPherson","given":"B.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":221784,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hendrix, G.Y.","contributorId":100459,"corporation":false,"usgs":true,"family":"Hendrix","given":"G.Y.","email":"","affiliations":[],"preferred":false,"id":221785,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Klein, Howard","contributorId":62189,"corporation":false,"usgs":true,"family":"Klein","given":"Howard","email":"","affiliations":[],"preferred":false,"id":221783,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tyus, H.M.","contributorId":16494,"corporation":false,"usgs":true,"family":"Tyus","given":"H.M.","affiliations":[],"preferred":false,"id":221782,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":3452,"text":"cir715H - 1976 - Reservoir-system model for the Willamette River basin, Oregon","interactions":[],"lastModifiedDate":"2017-02-03T13:57:45","indexId":"cir715H","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"715","chapter":"H","title":"Reservoir-system model for the Willamette River basin, Oregon","docAbstract":"For nearly half a century the Willamette River in Oregon experienced severe dissolved-oxygen problems related to large loads of organically rich waste waters from industries and municipalities. Since the mid-1950 's dissolved oxygen quality has gradually improved owing to low-flow augmentation, the achievement of basinwide secondary treatment, and the use of other waste-management practices. As a result, summer dissolved-oxygen levels have increased, salmon runs have returned, and the overall effort is widely regarded as a singular water-quality success. To document the improved dissolved-oxygen regimen, the U.S. Geological Survey conducted intensive studies of the Willamette during the summer low-flow seasons of 1973 and 1974. During each summer the mean daily dissolved-oxygen levels were found to be higher than 5 milligrams per liter throughout the river. Because of the basinwide secondary treatment, carbonaceous deoxygenation rates were low. In addition, almost half of the biochemical oxygen demand entering the Willamette was from diffuse (nonpoint) sources rather than outfalls. These results indicated that point-source biochemical oxygen demand was no longer the primary cause of dissolved-oxygen depletion. Instead, the major causes of deoxygenation were nitrification in a shallow ' surface active ' reach below Salem and an anomalous oxygen demand (believed to be primarily of benthal origin) in Portland Harbor. (Woodard-USGS)","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/cir715H","usgsCitation":"Shearman, J.O., 1976, Reservoir-system model for the Willamette River basin, Oregon: U.S. Geological Survey Circular 715, vi, p H1-H22, ill., map ;26 cm. , https://doi.org/10.3133/cir715H.","productDescription":"vi, p H1-H22, ill., map ;26 cm. ","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"links":[{"id":30464,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1976/0715h/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":123995,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1976/0715h/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b06e4b07f02db69a054","contributors":{"authors":[{"text":"Shearman, James O.","contributorId":95048,"corporation":false,"usgs":true,"family":"Shearman","given":"James","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":146947,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":3379,"text":"cir735 - 1976 - Guidelines for sample collecting and analytical methods used in the U.S. Geological Survey for determining chemical composition of coal","interactions":[],"lastModifiedDate":"2012-02-02T00:05:30","indexId":"cir735","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"735","title":"Guidelines for sample collecting and analytical methods used in the U.S. Geological Survey for determining chemical composition of coal","docAbstract":"This report is intended to meet the many requests for information on current U.S. Geological Survey procedures in handling coal samples.\r\n\r\nIn general, the exact type and number of samples of coal and associated rock to be collected are left to the best judgment of the geologist. Samples should be of unweathered coal or rock and representative of the bed or beds sampled; it is recommended that two channel samples, separated by 10 to 100 yards (10 to 100 metres) and weighing 4 to 5 pounds ( 1.8 to 2.3 kilograms) each, be collected of each 5 feet ( 1.5 metres) of vertical section. Care must be taken to avoid any sample contamination, and to record the exact locality, thickness, and stratigraphic information for each sample.\r\n\r\nAnalytical methods are described for the determination of major, minor, and trace elements in coal. Hg, As, Sb, F, Se, U, and Th are determined in the raw coal, and the following 34 elements are determined after ashing the coal: Si, Al, Ca, Mg, Na, K, Fe (total), Cl, Ti, Mn, P, S (total), Cd, Li, Cu, Zn, Pb, B, Ba, Be, Co, Cr, Ga, La, Mo, Nb, Ni, Sc, Sr, Ti, V, Y, Yb, and Zr. The methods used to determine these elements include atomic absorption spectroscopy, X-ray fluorescence spectroscopy, optical emission spectroscopy, spectrophotometry, selective-ion electrode, and neutron activation analysis. A split of representative coal samples is submitted to the U.S. Bureau of Mines for proximate, ultimate, forms of sulfur, and Btu determinations.","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/cir735","usgsCitation":"Swanson, V.E., and Huffman, C., 1976, Guidelines for sample collecting and analytical methods used in the U.S. Geological Survey for determining chemical composition of coal: U.S. Geological Survey Circular 735, iv, 11 p. ;26 cm. , https://doi.org/10.3133/cir735.","productDescription":"iv, 11 p. ;26 cm. ","costCenters":[],"links":[{"id":69,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/circ/c735/index.htm","linkFileType":{"id":5,"text":"html"}},{"id":124439,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1976/0735/report-thumb.jpg"},{"id":30392,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1976/0735/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a42e","contributors":{"authors":[{"text":"Swanson, Vernon Emanuel","contributorId":59014,"corporation":false,"usgs":true,"family":"Swanson","given":"Vernon","email":"","middleInitial":"Emanuel","affiliations":[],"preferred":false,"id":146753,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Huffman, Claude","contributorId":60615,"corporation":false,"usgs":true,"family":"Huffman","given":"Claude","affiliations":[],"preferred":false,"id":146754,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":9959,"text":"ofr76757 - 1976 - Floods in Iowa: stage and discharge","interactions":[],"lastModifiedDate":"2012-02-02T00:06:22","indexId":"ofr76757","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-757","title":"Floods in Iowa: stage and discharge","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr76757","usgsCitation":"Lara, O.G., 1976, Floods in Iowa: stage and discharge: U.S. Geological Survey Open-File Report 76-757, x, 693 p. ;28 cm.; (700 p. - PGS), https://doi.org/10.3133/ofr76757.","productDescription":"x, 693 p. ;28 cm.; (700 p. - PGS)","costCenters":[],"links":[{"id":143631,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4b49","contributors":{"authors":[{"text":"Lara, Oscar G.","contributorId":19555,"corporation":false,"usgs":true,"family":"Lara","given":"Oscar","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":160574,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":10322,"text":"ofr76772 - 1976 - Sampling designs for geochemical surveys: syllabus for a short course","interactions":[],"lastModifiedDate":"2012-02-02T00:06:22","indexId":"ofr76772","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-772","title":"Sampling designs for geochemical surveys: syllabus for a short course","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr76772","usgsCitation":"Miesch, A., 1976, Sampling designs for geochemical surveys: syllabus for a short course: U.S. Geological Survey Open-File Report 76-772, iii, 128, [12] p. :ill. ;29 cm.; (138 p., 5 tables - PGS), https://doi.org/10.3133/ofr76772.","productDescription":"iii, 128, [12] p. :ill. ;29 cm.; (138 p., 5 tables - PGS)","costCenters":[],"links":[{"id":143653,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0772/report-thumb.jpg"},{"id":38173,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0772/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699f8e","contributors":{"authors":[{"text":"Miesch, A.T.","contributorId":88726,"corporation":false,"usgs":true,"family":"Miesch","given":"A.T.","affiliations":[],"preferred":false,"id":161196,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":3376,"text":"cir730 - 1976 - Geologic appraisal of the petroleum potential of offshore southern California; the borderland compared to onshore coastal basins","interactions":[],"lastModifiedDate":"2012-02-02T00:05:30","indexId":"cir730","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"730","title":"Geologic appraisal of the petroleum potential of offshore southern California; the borderland compared to onshore coastal basins","docAbstract":"Offshore southern California is part of a much larger Pacific continental margin, and the two areas have a similar geologic history at least as far back as middle Tertiary time. Assessment of the petroleum potential of the offshore Southern California borderland is accomplished by examining the adjacent highly explored productive coastal basins in the tectonically unstable area west of the San Andreas fault. Known oil and gas accumulations in this region can be characterized as follows: 88 percent comes from the Los Angeles and Ventura basins; 87 percent has been found in late Miocene and younger strata and only 0.2 percent has been found in Eocene strata; 80 percent has been found in thick deposits of deep-water turbidite reservoirs; and 5 percent has been found in fractured Miocene siliceous shale reservoirs. The percentage of siliceous shale reservoirs will increase as a result of recent discoveries in this rock type in the Santa Barbara Channel. Of the 212 known fields only 5 are giants (greater than 500 million barrels), and these fields account for 52 percent of all past production from the region. Most fields are faulted anticlines, and the largest fields have the highest oil recoveries per acre. \r\n\r\nGeologic knowledge of the offshore is limited by the availability of data. Data have been obtained from geophysical surveys, analyses of bedrock samples from the sea floor, and extrapolations of data from the mainland and offshore islands. Several factors have a negative effect on the assessment of the petroleum potential of the southern California borderland. They are: \r\n\r\n1. The Neogene section is relatively thin, and the Paleogene section is thin and has a limited distribution. \r\n\r\n2. Over large areas, Miocene sediments apparently rest directly on basement. \r\n\r\n3. Along much of the Santa Rosa-Cortes Ridge, sediments are uplifted and truncated, exposing Paleogene rocks. \r\n\r\n4. Organic content in Paleogene sediments is believed too low to generate large amounts of petroleum. \r\n\r\n5. Source rocks are immature, even in sediments as old as Eocene. \r\n\r\n6. Burial and thermal history are insufficient for the generaton of hydrocarbons over much of the borderland area. \r\n\r\n7. Documented oil and gas seeps are unknown seaward of the Channel Islands.\r\n\r\n8. Limited exploratory drilling nearshore, the best prospective area, has not been favorable. \r\n\r\n9. Adequate or thick reservoirs of deep-water turbidire origin are not evident. \r\n\r\nThese negative factors are partly offset by the following positive factors: \r\n\r\n1. Miocene sediments are excellent potential source rocks. \r\n\r\n2. Asphaltic oil in rocks of Monterey-type lithology may be generated at lower than normal temperatures. \r\n\r\n3. Shallow-water sands of reservoir quality possibly are present in the uppermost Paleogene and lowermost Neogene section. \r\n\r\n4. Potential structural traps may be analogous to major structural producing trends onshore. \r\n\r\n5. Fractured shale reservoirs may be present along flanks of major banks and ridges. \r\n\r\n6. Buried and unsampled Paleogene and Late Cretaceous sediments may be better source rocks than those sampled and measured. \r\n\r\nThe southern California borderland, although a part of a locally rich petroliferous region, has no known basins with geologic histories or characteristics similar to the Los Angeles and Ventura basins. Some offshore basins are similar to less endowed basins in terms of petroleum potential such as the Santa Maria and Salinas basins. Areas with the best petroleum potential may be in deep water (greater than 500 m). Some of the past high estimates of the petroleum potential may have been overstated; the existing geologic data tend to substantiate low estimates of 0.6 to 5.8 billion barrels of oil and 0.6 to 5.8 trillion ft3 of gas for the southern California borderland at the 5 and 95 percent probability level.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/cir730","usgsCitation":"Taylor, J.C., 1976, Geologic appraisal of the petroleum potential of offshore southern California; the borderland compared to onshore coastal basins: U.S. Geological Survey Circular 730, iv, 43 p. :ill., maps ;26 cm. , https://doi.org/10.3133/cir730.","productDescription":"iv, 43 p. :ill., maps ;26 cm. ","costCenters":[],"links":[{"id":124495,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1976/0730/report-thumb.jpg"},{"id":30386,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1976/0730/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e9c1","contributors":{"authors":[{"text":"Taylor, James Carlton","contributorId":18745,"corporation":false,"usgs":true,"family":"Taylor","given":"James","email":"","middleInitial":"Carlton","affiliations":[],"preferred":false,"id":146746,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":18119,"text":"ofr76490 - 1976 - Selected field data collected in 1975, northeastern Craig Quadrangle, southeastern Alaska","interactions":[],"lastModifiedDate":"2024-01-22T17:57:11.341074","indexId":"ofr76490","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-490","title":"Selected field data collected in 1975, northeastern Craig Quadrangle, southeastern Alaska","docAbstract":"This report consists of a computer printout of geologic field data recorded by H.C. Berg from July 2 to July 20, 1975 in the part of the Craig (CR) 1:250,000-scale quadrangle northeast of Clarence Strait (figs. 1 and 2). It contains edited and revised observations on structure, lithology, mineralogy, metamorphism, and mineral occurrences. Areas covered by the observations include southern Etolin and adjacent islands and part of Cleveland Peninsula, including 5 sites in the Ketchikan (KC) quadrangle immediately adjacent to the Craig quadrangle (fig. 2). A preliminary geologic map incorporating the data has been released (Berg and others, 1976). The printout includes the latitude-longitude coordinates of each field station, so that the user can locate the observations within a few metres on larger-scale topographic maps than figure 2.
The purpose of this report is to provide an organized file of detailed field observations to supplement and amplify a companion geologic map. The combined reports thus constitute a complete record of available information to serve as wide a range of potential users as possible.
The information in this report was transferred from geologic fieldsheets (fig. 3) to computer storage using the method described by Hudson and others (1975). A. Marianne Fujii transcribed the data from the fieldsheets; Betsy Yount and Frances Wahl helped to update the computer file and prepare it for publication; and Bruce Salem wrote the interactive computer program that greatly facilitated entry of the fieldnotes into the computer file.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr76490","usgsCitation":"Berg, H., and Fujii, A.M., 1976, Selected field data collected in 1975, northeastern Craig Quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 76-490, viii, 70 p., https://doi.org/10.3133/ofr76490.","productDescription":"viii, 70 p.","costCenters":[],"links":[{"id":424685,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0490/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":149216,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0490/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Craig Quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -134.667,\n 55\n ],\n [\n -132,\n 55\n ],\n [\n -132,\n 56\n ],\n [\n -134.667,\n 56\n ],\n [\n -134.667,\n 55\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699f44","contributors":{"authors":[{"text":"Berg, Henry C.","contributorId":73176,"corporation":false,"usgs":true,"family":"Berg","given":"Henry C.","affiliations":[],"preferred":false,"id":178582,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fujii, A. Marianne","contributorId":81507,"corporation":false,"usgs":true,"family":"Fujii","given":"A.","email":"","middleInitial":"Marianne","affiliations":[],"preferred":false,"id":178583,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1375,"text":"wsp2040 - 1976 - Ground water in the Harrisburg-Halsey area, southern Willamette Valley, Oregon","interactions":[{"subject":{"id":18967,"text":"ofr76249 - 1976 - Ground water in the Harrisburg-Halsey area, southern Willamette Valley, Oregon","indexId":"ofr76249","publicationYear":"1976","noYear":false,"title":"Ground water in the Harrisburg-Halsey area, southern Willamette Valley, Oregon"},"predicate":"SUPERSEDED_BY","object":{"id":1375,"text":"wsp2040 - 1976 - Ground water in the Harrisburg-Halsey area, southern Willamette Valley, Oregon","indexId":"wsp2040","publicationYear":"1976","noYear":false,"title":"Ground water in the Harrisburg-Halsey area, southern Willamette Valley, Oregon"},"id":1}],"lastModifiedDate":"2023-03-10T22:30:15.811618","indexId":"wsp2040","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2040","title":"Ground water in the Harrisburg-Halsey area, southern Willamette Valley, Oregon","docAbstract":"The Harrisburg-Halsey area lies between the Cascade and Coast Ranges in the southern Willamette Valley in northwestern Oregon. The area consists of approximately 350 square miles (910 km2) and includes a part of the lower foothills of the Coast and Cascade Ranges. Volcanic and marine sedimentary units exposed in the foothills range in age from Eocene to Miocene. The volcanic rocks are primarily of dacitic and andesitic composition and yield only small quantities of water that are generally adequate only for domestic and stock use. The alluvial deposits (sand and gravel) of the valley plain contain the more productive aquifers in the area and yield most of the water that is pumped from wells in the area. Aquifers in the area are recharged principally by direct infiltration of precipitation. Most of the precipitation, which averages about 40 in. (1,020 mm) per year occurs during late autumn and winter. During 1974 the seasonal decline of water levels from winter to late summer averaged about 10 ft 13 m) for the alluvial deposits. The seasonal change of storage for 1974 was estimated to be about 170,000 acre-ft (210 hm3). Of this volume, about 14,300 acre-ft (17.6 hm3) was pumped from wells; the rest, about 156,000 acre-ft (190 hm3), was discharged naturally by seepage and spring flow to streams and by evapotranspiration. The difference between pumpage and natural discharge indicates that a large quantity of additional water is available for development. The storage capacity of the alluvial aquifers is estimated to be about 800,000 acre-ft (1,000 hm3) in the zone 10-100 ft (3-30 m} below land surface. Ground water from the alluvial deposits is chemically suitable for irrigation and other uses, as is most of the water obtained from perched-water bodies in the older sedimentary and volcanic rocks. However, the mineral concentration of water from the older sedimentary rocks, particularly from deeper producing zones beneath the valley plain, is greater than that of water from the alluvial deposits. Locally, some of the water from the older rocks is too saline for general use. Water samples from domestic wells were analyzed for fecal coliform bacteria. Although these analyses did not indicate ground-water pollution, further study would be required to establish that none exists in the area.
","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/wsp2040","usgsCitation":"Frank, F.J., 1976, Ground water in the Harrisburg-Halsey area, southern Willamette Valley, Oregon: U.S. Geological Survey Water Supply Paper 2040, Report: iv, 45 p.; 1 Plate: 34.00 x 20.17 inches, https://doi.org/10.3133/wsp2040.","productDescription":"Report: iv, 45 p.; 1 Plate: 34.00 x 20.17 inches","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"links":[{"id":137314,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2040/report-thumb.jpg"},{"id":26474,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2040/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":26473,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/2040/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Oregon","otherGeospatial":"Harrisburg-Halsey area, southern Willamette Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -123.383,\n 44.476\n ],\n [\n -123.383,\n 44.25\n ],\n [\n -122.873,\n 44.25\n ],\n [\n -122.873,\n 44.476\n ],\n [\n -123.383,\n 44.476\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab0e4b07f02db66d967","contributors":{"authors":[{"text":"Frank, F. J.","contributorId":95037,"corporation":false,"usgs":true,"family":"Frank","given":"F.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":143657,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}