This report summarizes sediment data collected at 11 sites in the Umpqua River basin from 1956 to 1973 and updates a report by C. A. Onions (1969) of estimated sediment yields in the basin from 1956-67. Onions' report points out that the suspended-sediment data, collected during the 1956-67 period, were insufficient to compute reliable sediment yields. Therefore, the U.S, Geological Survey, in cooperation with Douglas County, collected additional data from 1969 to 1973 to improve the water discharge-sediment discharge relationships at these sites. These data are published in \"Water resources data for Oregon, Part 2, Water quality records,\" 1970 through 1973 water years. In addition to the 10 original sites, data were collected during this period from the Umpqua River near Elkton station, and a summary of the data for that station is included in table 1.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/70174075","collaboration":"Prepared in cooperation with Douglas County","usgsCitation":"Curtiss, D.A., 1975, Sediment yields of streams in the Umpqua River Basin, Oregon: Open-File Report, 15.79 x 21.01 inches, https://doi.org/10.3133/70174075.","productDescription":"15.79 x 21.01 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"links":[{"id":324432,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/70174075.PNG"},{"id":324886,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/unnumbered/70174075/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Oregon","otherGeospatial":"Umpqua River Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.61541748046875,\n 42.71069600569494\n ],\n [\n -123.61541748046875,\n 43.715534726205114\n ],\n [\n -122.98095703125,\n 43.715534726205114\n ],\n [\n -122.98095703125,\n 42.71069600569494\n ],\n [\n -123.61541748046875,\n 42.71069600569494\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57724e35e4b07657d1a819d1","contributors":{"authors":[{"text":"Curtiss, D. A.","contributorId":27862,"corporation":false,"usgs":true,"family":"Curtiss","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":640819,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":15440,"text":"ofr75607 - 1975 - Ground-water quality in selected areas serviced by septic tanks, Dade County, Florida","interactions":[],"lastModifiedDate":"2022-01-04T17:29:08.062093","indexId":"ofr75607","displayToPublicDate":"1975-12-31T22:10:00","publicationYear":"1975","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":"75-607","title":"Ground-water quality in selected areas serviced by septic tanks, Dade County, Florida","docAbstract":"During 1971-74, the U.S. Geological Survey investigated the chemical, physical, bacteriological, and virological characteristics of the ground water in five selected areas serviced by septic tanks in Dade County, Florida. Periodic water samples were collected from multiple-depth groups of monitor wells ranging in depth from 10 to 60 ft at each of the five areas. Analyses of ground water from base-line water-quality wells in inland areas remote from urban development indicated that the ground water is naturally high in organic nitrogen, ammonia, organic carbon and chemical oxygen demand. Some enrichment of ground water with sodium provided a possible key to differentiating septic-tank effluent from other urban ground-water contaminant sources. High ammonia nitrogen, phosphorus, and the repetitive detection of fecal coliform bacteria were characteristic of two 10-foot monitor wells that consistently indicated the presence of septic-tank effluent in ground water. Dispersion, dilution, and various chemical processes have presumably prevented accumulation of septic-tank effluent at depths greater than 20 ft, as indicated by the 65 types of water analyses used in the investigation. Fecal coliform bacteria were present on one or two occasions in many monitor wells but the highest concentration, 1,600 colonies/100 ml, was related to storm-water infiltration rather than septic-tank discharge.
Areal variations in the composition and the hydraulic conductivity of the sand and limestone aquifer had the most noticeable influence on the overall ground-water quality. The ground water in the more permeable limestone in south Dade County near Homestead contained low concentrations of septic-tank related constituents, but higher concentrations of dissolved sulfate and nitrate. The ground water in north Dade County, where the aquifer is less permeable, contained the highest dissolved iron, manganese, COD, and organic carbon.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr75607","collaboration":"Prepared in cooperation with Dade County, Florida","usgsCitation":"Pitt, W., Mattraw, H.C., and Klein, H., 1975, Ground-water quality in selected areas serviced by septic tanks, Dade County, Florida: U.S. Geological Survey Open-File Report 75-607, 82 p., https://doi.org/10.3133/ofr75607.","productDescription":"82 p.","costCenters":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"links":[{"id":148447,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1975/0607/coverthb.jpg"},{"id":1001,"rank":100,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1975/0607/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Florida","county":"Dade County","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.94451904296875,\n 25.122905883812052\n ],\n [\n -80.07110595703125,\n 25.122905883812052\n ],\n [\n -80.07110595703125,\n 25.987674852384966\n ],\n [\n -80.94451904296875,\n 25.987674852384966\n ],\n [\n -80.94451904296875,\n 25.122905883812052\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Caribbean-Florida Water Science Center
U.S. Geological Survey
3321 College Avenue
Davie, FL 33314
Ecological problems are a major concern to Florida as well as to the Nation. National attention was focused on these problems in September 1968, when the Port Authority of Dade County began to con-struct a jetport for supersonic aircraft on a 39-square-mile tract 6 miles north of Everglades National Park and on the east edge of the Big Cypress Swamp. Conservation groups and citizens raised questions as to the effects of a regional jetport and the attendant satellite growth on the water resources and biological communities of the National Park. The Department of the Interior began studies to investigate the situation. One study, Leopold (1969), reported on the unfavorable ecological effects of the attendant satellite growth.
Then Secretary of the Interior, Walter J. Hickel, directed the U.S. Geological Survey to study the water resources of the Big Cypress to determine which parts of the Big Cypress contribute the major part of the water necessary to maintain adequate water supplies for Everglades National Park. This was done in a report by Klein and others (1970).
At about the same time, the Departments of interior and Transportation, the State of Florida, and the Dade County Port Authority con-curred in assigning to the Secretary of the Interior certain responsibilities for planning, developing, and coordinating an ecological study of south Florida. A primary objective of the ecological study is to provide information that will assist in the formulation of land-use policy consistent with the protection of the environment of Everglades National Park, the adjacent estuaries, and the public water supplies.
The part of the investigation describing the surface-water and ground-water resources of south Florida was assigned to the Geological Survey. The quantity and quality of surface water and ground water and their interrelation with estuarine and marine waters are here considered. Also considered are the problems, present or future, related to the hydrologic environment that involve human, animal, and plant life. Changes taking place, apparent trends, and projections for the future are also considered, as well as alternatives for water management.
The Geological Survey effort began in January 1971, when aerial photography and selected qualitative hydrologic data were obtained. However, most of the information upon which this report Is based was obtained by the Geological Survey in cooperative programs with several local, State, and Federal agencies since about 1940. The long-term support of the U.S. Army Corps of Engineers, the National Park Service, U.S. Navy, Florida Department of Natural Resources, Central and Southern Florida Flood Control District, Dade, Broward, Palm Beach and Collier Counties, Miami and Miami Beach, Ft. Lauderdale, Naples and others in the collection of data is gratefully acknowledged.
A prolonged drought throughout south Florida from September 1970 to May 1971 accentuated the importance and timeliness of the study. The drought brought about a readvance of sea-water intrusion in many coastal areas, which necessitated restrictions on water use. The effect of drought on the regional water supply, continued population growth and increased water demands, and deterioration of the water quality in many of the canals and waterways of the urban areas accentuated the need for improved water management and land-use planning.
As a result of the water crisis, the Governor of Florida called a special conference in September 1971. The conference, attended by foremost scientific and government personnel, proposed creation of an agency that would develop and implement comprehensive land and water-use plans for south Florida that would minimize environmental degradation.
Caribbean-Florida Water Science Center
U.S. Geological Survey
3321 College Avenue
Davie, FL 33314
A widespread volcanic field covered most of the Southern Rocky Mountains in middle Tertiary time, 40 to 25 m.y. ago (approximately Oligocene time). This field covered an erosion surface that beveled structures formed during the Laramide orogeny in Late Cretaceous and early Tertiary time. The source vents from which the volcanic rocks were derived were largely restricted to the deformed area. Recognized volcanic centers lie mostly within a broad triangular area bounded on the east by the Rocky Mountain front, on the northwest by the northeast-trending Colorado mineral belt lineament, and on the southwest by the southern margin of the recurrently active Uncompahgre-San Luis uplift. Local volcanic centers existed also in the Never Summer Mountains and Rabbit Ears Range north of the mineral belt lineament. The resulting volcanic field thus consisted of a major southern segment covering all of south-central Colorado and adjacent New Mexico and a northern segment extending into the mountain areas of north-central Colorado. The two segments were linked along the trend of the Colorado mineral belt. Most of the volcanic field consisted of volcanic rock of intermediate composition derived from many widely scattered volcanoes. Extensive aprons of volcaniclastic rocks around these volcanoes coalesced to provide a virtually continuous cover of volcanic material. In places, the volcanic activity became more silicic with time, great ash-flow tuff sheets were erupted, and the source areas subsided to form calderas. The largest ash-flow field and most of the calderas formed in the San Juan Mountains. Other ash flows apparently were derived from areas in the Sawatch Range in central Colorado and the Never Summer Mountains in northern Colorado. Large near-surface batholiths were emplaced beneath the San Juan Mountains and beneath the region that extends northeastward from the Elk Mountains and Sawatch Range along the trend of the Colorado mineral belt as far as the Rocky Mountain front. These batholiths are manifested by two large gravity lows and by many exposed epizonal plutons that represent cupolas on the larger underlying bodies. The batholith in central Colorado probably consists of plutons of both Laramide (70 to 55 m.y.) and middle Tertiary (40 to 25 m.y.) ages.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/MEM144-p75","issn":"00721069","usgsCitation":"Steven, T.A., 1975, Middle tertiary volcanic field in the southern Rocky Mountains: Memoir of the Geological Society of America, v. 144, p. 75-94, https://doi.org/10.1130/MEM144-p75.","productDescription":"20 p. ","startPage":"75","endPage":"94","costCenters":[],"links":[{"id":369780,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Rocky Mountains","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -119.091796875,\n 49.095452162534826\n ],\n [\n -119.44335937499999,\n 44.5278427984555\n ],\n [\n -115.13671875,\n 40.111688665595956\n ],\n [\n -109.51171875,\n 36.80928470205937\n ],\n [\n -105.46875,\n 34.161818161230386\n ],\n [\n -104.67773437499999,\n 36.1733569352216\n ],\n [\n -105.732421875,\n 44.84029065139799\n ],\n [\n -110.390625,\n 48.922499263758255\n ],\n [\n -119.091796875,\n 49.095452162534826\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"144","noUsgsAuthors":false,"publicationDate":"1975-01-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Steven, T. A.","contributorId":42575,"corporation":false,"usgs":true,"family":"Steven","given":"T.","middleInitial":"A.","affiliations":[],"preferred":false,"id":776369,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70207456,"text":"70207456 - 1975 - Geological and geochemical significance of Red Sea evaporites","interactions":[],"lastModifiedDate":"2019-12-19T15:12:43","indexId":"70207456","displayToPublicDate":"1975-12-31T14:42:01","publicationYear":"1975","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Geological and geochemical significance of Red Sea evaporites","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"1975 Offshore Technology Conference : Proceedings","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"7th Offshore Technology Conference","conferenceDate":"May 5-8, 1975","conferenceLocation":"Houston, TX","language":"English","publisher":"Offshore Technology Conference","usgsCitation":"Manheim, F.T., 1975, Geological and geochemical significance of Red Sea evaporites, in 1975 Offshore Technology Conference : Proceedings, Houston, TX, May 5-8, 1975, p. 545-548.","productDescription":"4 p.","startPage":"545","endPage":"548","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":370512,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Red Sea","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 35.123291015625,\n 28.130127737874005\n ],\n [\n 34.727783203125,\n 28.168875180063345\n ],\n [\n 35.079345703125,\n 29.563901551414418\n ],\n [\n 34.815673828125,\n 29.602118211647333\n ],\n [\n 34.25537109375,\n 28.19792655722615\n ],\n [\n 34.288330078125,\n 27.97499795326776\n ],\n [\n 33.870849609375,\n 28.04289477256162\n ],\n [\n 32.6513671875,\n 30.12612436422458\n ],\n [\n 32.10205078125,\n 29.726222319395504\n ],\n [\n 35.35400390625,\n 23.986252599841798\n ],\n [\n 35.628662109375,\n 22.917922936146045\n ],\n [\n 36.749267578125,\n 21.993988560906033\n ],\n [\n 37.012939453125,\n 21.17672864097083\n ],\n [\n 37.28759765625,\n 18.79191774423444\n ],\n [\n 38.232421875,\n 18.114529138838503\n ],\n [\n 38.748779296875,\n 17.63355221367443\n ],\n [\n 39.26513671875,\n 15.718238544734854\n ],\n [\n 39.79248046875,\n 14.93416989934271\n ],\n [\n 40.7373046875,\n 14.71113475887066\n ],\n [\n 43.275146484375,\n 12.39365886237742\n ],\n [\n 43.780517578125,\n 12.897489183755892\n ],\n [\n 43.39599609375,\n 13.47510594433495\n ],\n [\n 42.86865234375,\n 15.675932151334584\n ],\n [\n 42.791748046875,\n 16.909683615558635\n ],\n [\n 42.451171875,\n 17.28770905062193\n ],\n [\n 41.934814453125,\n 17.926475979176438\n ],\n [\n 41.2646484375,\n 18.87510275035649\n ],\n [\n 40.858154296875,\n 19.880391767822505\n ],\n [\n 40.177001953125,\n 20.385825381874263\n ],\n [\n 39.781494140625,\n 20.46818922264095\n ],\n [\n 39.30908203125,\n 21.34054846908118\n ],\n [\n 39.0673828125,\n 22.024545601240337\n ],\n [\n 39.287109375,\n 22.411028521558706\n ],\n [\n 38.1005859375,\n 24.256981315882488\n ],\n [\n 37.58422851562499,\n 24.397133017391052\n ],\n [\n 37.276611328125,\n 24.896402266558727\n ],\n [\n 37.254638671875,\n 25.27450351782018\n ],\n [\n 35.123291015625,\n 28.130127737874005\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Manheim, Frank T. 0000-0003-4005-4524","orcid":"https://orcid.org/0000-0003-4005-4524","contributorId":20770,"corporation":false,"usgs":true,"family":"Manheim","given":"Frank","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":778118,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70206968,"text":"70206968 - 1975 - Rates of dissolution of aluminosilicates in seawater","interactions":[],"lastModifiedDate":"2019-12-02T11:25:20","indexId":"70206968","displayToPublicDate":"1975-12-31T11:21:17","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Rates of dissolution of aluminosilicates in seawater","docAbstract":"Dissolution of eight clay minerals, four zeolites, and quartz in seawater has been monitored for 8 1 2 years. For most of the minerals, dissolution can be described as a first-order reaction in which dissolved silica approaches from undersaturation steady concentration values with time. Characteristic reaction rate constants (k1) are of the order of 10-7 sec-1. One of the zeolites, clinoptilolite, shows a different dissolution behavior: SiO2 concentration in solution reaches a high value within one year, followed by a decline to a lower value, suggestive of precipitation of another silicate phase (possibly sepiolite). A mathematical solution is given for a kinetic equation combining the parabolic-rate and first-order rate processes. It is shown that in a wide range of silicate dissolution reactions taking place over long periods of time, the presence of the parabolic-rate dissolution processes cannot be detected, thereby making its inclusion in the kinetic equations unnecessary. The experimental rates of dissolution are comparable to the SiO2- dissolution rates in oceanic sediments near the sediment/water interface. But deeper in the sediment, the calculated dissolution rates are significantly lower than the near-interface and experimental values. © 1975.
","language":"English","doi":"10.1016/0012-821X(75)90213-7","issn":"0012821X","usgsCitation":"Lerman, A., MacKenzie, F., and Bricker, O., 1975, Rates of dissolution of aluminosilicates in seawater: Earth and Planetary Science Letters, v. 25, no. 1, p. 82-88, https://doi.org/10.1016/0012-821X(75)90213-7.","productDescription":"7 p. ","startPage":"82","endPage":"88","costCenters":[],"links":[{"id":369799,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Lerman, A.","contributorId":220975,"corporation":false,"usgs":false,"family":"Lerman","given":"A.","email":"","affiliations":[],"preferred":false,"id":776420,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"MacKenzie, F.T.","contributorId":25681,"corporation":false,"usgs":true,"family":"MacKenzie","given":"F.T.","email":"","affiliations":[],"preferred":false,"id":776421,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bricker, O.P.","contributorId":33717,"corporation":false,"usgs":true,"family":"Bricker","given":"O.P.","affiliations":[],"preferred":false,"id":776422,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70210048,"text":"70210048 - 1975 - An outbreak of a hemorrhagic disease in white-tailed deer in Kentucky","interactions":[],"lastModifiedDate":"2020-05-12T16:21:36.300525","indexId":"70210048","displayToPublicDate":"1975-12-31T11:16:52","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"An outbreak of a hemorrhagic disease in white-tailed deer in Kentucky","docAbstract":"In 1971, an outbreak of a hemorrhagic disease occurred in captive and free-ranging white-tailed deer (Odocoileus virginianus) in Mammoth Cave National Park, Kentucky. Clinical signs and gross pathological lesions were consistent with those of epizootic hemorrhagic disease and bluetongue, as were serological and histopathological findings for samples sent to other laboratories. The infection rate among the 104 captive deer was 88-92%, and that among the free-ranging Park deer appeared to be similar. Mortality was negligible in the Park deer, but 65 (62%) of the captive deer died. The deaths were bimodally distributed over a 36-day period, and the mortality rate decreased from 97-100% for deer clinically ill during the first 17 days of the outbreak to 58% for deer first exhibiting clinical signs on day 16 or later. Mortality was equal in males and females, but less in yearlings than among fawns or adults. Winter mortality among survivors of the initial outbreak was associated with low ambient temperatures and sometimes fungal and bacterial abscesses, possibly sequelae or complications of the hemorrhagic disease. The pregnancy and birth rates among surviving does appeared to be normal.
","language":"English","publisher":"Wildlife Disease Association","doi":"10.7589/0090-3558-11.2.177","usgsCitation":"Roughton, R.D., 1975, An outbreak of a hemorrhagic disease in white-tailed deer in Kentucky: Journal of Wildlife Diseases, v. 11, no. 2, p. 177-186, https://doi.org/10.7589/0090-3558-11.2.177.","productDescription":"10 p.","startPage":"177","endPage":"186","costCenters":[],"links":[{"id":374667,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"11","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Roughton, Robert D.","contributorId":224644,"corporation":false,"usgs":false,"family":"Roughton","given":"Robert","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":788920,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70234308,"text":"70234308 - 1975 - Prediction of maximum earthquake intensities for the San Francisco Bay region","interactions":[],"lastModifiedDate":"2022-08-08T16:12:24.125086","indexId":"70234308","displayToPublicDate":"1975-12-31T11:00:16","publicationYear":"1975","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Prediction of maximum earthquake intensities for the San Francisco Bay region","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of U.S. national conference on earthquake engineering 1975, Ann Arbor, Michigan, June 18--20, 1975","largerWorkSubtype":{"id":12,"text":"Conference publication"},"usgsCitation":"Borcherdt, R.D., 1975, Prediction of maximum earthquake intensities for the San Francisco Bay region, in Proceedings of U.S. national conference on earthquake engineering 1975, Ann Arbor, Michigan, June 18--20, 1975, p. 123-127.","productDescription":"5 p.","startPage":"123","endPage":"127","costCenters":[{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true}],"links":[{"id":404921,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.1622314453125,\n 36.778492404594154\n ],\n [\n -120.860595703125,\n 36.778492404594154\n ],\n [\n -120.860595703125,\n 38.436379603\n ],\n [\n -123.1622314453125,\n 38.436379603\n ],\n [\n -123.1622314453125,\n 36.778492404594154\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Borcherdt, Roger D. 0000-0002-8668-0849 borcherdt@usgs.gov","orcid":"https://orcid.org/0000-0002-8668-0849","contributorId":2373,"corporation":false,"usgs":true,"family":"Borcherdt","given":"Roger","email":"borcherdt@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":848524,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70208774,"text":"70208774 - 1975 - Taxonomy and stratigraphic occurrence of the marine diatom genus Rhaphoneis","interactions":[],"lastModifiedDate":"2020-02-28T10:08:03","indexId":"70208774","displayToPublicDate":"1975-12-31T10:05:21","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5934,"text":"Nova Hedwigia, Beiheft","printIssn":"1438-9134","active":false,"publicationSubtype":{"id":10}},"displayTitle":"Taxonomy and stratigraphic occurrence of the marine diatom genus Rhaphoneis","title":"Taxonomy and stratigraphic occurrence of the marine diatom genus Rhaphoneis","docAbstract":"No abstract available.
","language":"English","publisher":"Cramer","usgsCitation":"Andrews, G., 1975, Taxonomy and stratigraphic occurrence of the marine diatom genus Rhaphoneis: Nova Hedwigia, Beiheft, v. 53, p. 193-222.","productDescription":"30 p.","startPage":"193","endPage":"222","costCenters":[],"links":[{"id":372729,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Andrews, George W.","contributorId":40621,"corporation":false,"usgs":true,"family":"Andrews","given":"George W.","affiliations":[],"preferred":false,"id":783355,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70236458,"text":"70236458 - 1975 - Photo-optical contrast stretching of Landsat data for multidisciplinary analyses of the Lake Ontario basin","interactions":[],"lastModifiedDate":"2022-09-07T14:11:28.882238","indexId":"70236458","displayToPublicDate":"1975-12-31T09:04:30","publicationYear":"1975","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Photo-optical contrast stretching of Landsat data for multidisciplinary analyses of the Lake Ontario basin","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Third Canadian symposium on remote sensing","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Canadian Aeronautics and Space Institute","usgsCitation":"Falconer, A., Deutsch, M., Myers, L.C., and Anderson, R., 1975, Photo-optical contrast stretching of Landsat data for multidisciplinary analyses of the Lake Ontario basin, in Third Canadian symposium on remote sensing, p. 173-193.","productDescription":"21 p.","startPage":"173","endPage":"193","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":406304,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","otherGeospatial":"Lake Ontario basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.6396484375,\n 43.29320031385282\n ],\n [\n -76.81640625,\n 43.29320031385282\n ],\n [\n -76.81640625,\n 45.336701909968134\n ],\n [\n -80.6396484375,\n 45.336701909968134\n ],\n [\n -80.6396484375,\n 43.29320031385282\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Falconer, A.","contributorId":192747,"corporation":false,"usgs":false,"family":"Falconer","given":"A.","affiliations":[],"preferred":false,"id":851086,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Deutsch, Morris","contributorId":69119,"corporation":false,"usgs":true,"family":"Deutsch","given":"Morris","email":"","affiliations":[],"preferred":false,"id":851087,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Myers, Lynne C.","contributorId":296270,"corporation":false,"usgs":false,"family":"Myers","given":"Lynne","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":851088,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anderson, Robert","contributorId":72037,"corporation":false,"usgs":true,"family":"Anderson","given":"Robert","affiliations":[],"preferred":false,"id":851089,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70206726,"text":"70206726 - 1975 - The vourinos ophiolite, Greece: Cyclic units of lineated cumulates overlying harzburgite tectonite","interactions":[],"lastModifiedDate":"2019-11-19T07:33:46","indexId":"70206726","displayToPublicDate":"1975-12-31T07:33:26","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"The vourinos ophiolite, Greece: Cyclic units of lineated cumulates overlying harzburgite tectonite","docAbstract":"Re-examination of the Vourinos ophiolite shows it to be composed of metamorphic tectonites, cumulates, plagiogranites, dikes, and lava. The contact between the tectonites and the cumulates is exposed and sharp. Beneath the cumulate contact, the rocks have been highly deformed and complexly folded; above that contact, they simply have been tilted vertically to expose a stratiform complex 1,500 m (4,800 ft) thick. The stratiform intrusion is characterized by cyclic units, rich in olivine at the base, and rich in feldspar at the top. Some cumulus diorites are present at the top of the section which grade into quartz diorites (plagiogranites) with hypautomorphic textures. Lineate lamination characterizes the cumulates and may indicate the direction or orientation of the Mesozoic mid-oceanic ridge crest with respect to the present position of the complex. A siliceous dike swarm cuts the upper part of the stratiform complex. The section suggests that in the case of Vourinos, a large magmatic chamber formed at a mid-oceanic ridge crest and that intrusion was a much more important process than extrusion in the formation of oceanic crust in that area. The reported presence of cumulates in many other ophiolite complexes suggests that these relations may obtain generally at most or all spreading ridges. The contact between the tectonites and the cumulates of the complex would not have corresponded with seismic M. © 1975 Geological Society of America.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1975)86<390:TVOGCU>2.0.CO;2","issn":"00167606","usgsCitation":"Jackson, E.D., Greene, H., and Moores, E., 1975, The vourinos ophiolite, Greece: Cyclic units of lineated cumulates overlying harzburgite tectonite: Geological Society of America Bulletin, v. 86, no. 3, p. 390-398, https://doi.org/10.1130/0016-7606(1975)86<390:TVOGCU>2.0.CO;2.","productDescription":"9 p. ","startPage":"390","endPage":"398","costCenters":[],"links":[{"id":369310,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"86","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Jackson, E. D.","contributorId":120010,"corporation":false,"usgs":true,"family":"Jackson","given":"E.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":775560,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Greene, H.W.","contributorId":89638,"corporation":false,"usgs":true,"family":"Greene","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":775561,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moores, E.M.","contributorId":78452,"corporation":false,"usgs":true,"family":"Moores","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":775562,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70206725,"text":"70206725 - 1975 - Structure and petrology of a cumulus norite boulder sampled by Apollo 17 in Taurus-Littrow Valley, the Moon","interactions":[],"lastModifiedDate":"2019-11-19T07:26:06","indexId":"70206725","displayToPublicDate":"1975-12-31T07:23:58","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Structure and petrology of a cumulus norite boulder sampled by Apollo 17 in Taurus-Littrow Valley, the Moon","docAbstract":"A glass-coated half-meter-size boulder was sampled by the Apollo 17 crew at station 8 near the foot of the Sculptured Hills. The rock proved to be a coarse-grained (0.5-cm) plagioclase-orthopyroxene cumulate, and the samples are the only true norites returned from the lunar surface. Photographs of the boulder showed it to contain at least nine structural surfaces and four glass veins. Orientation and inspection of three of the returned samples resulted in the identification of six surfaces and one vein. One of the structural surfaces visible in the boulder was identified as primary cumulus planar lamination, which was folded through an angle of at least 35° between two oriented samples, whereas fracture sets representing the other surfaces were coincident. The boulder is believed to be a sample of the deeper highlands or submare lunar crust, derived from a depth of 8 to 30 km and somewhat shock-metamorphosed during at least two excavation events. The chemical composition of the norites, when determined, should be of special interest in view of the large amount of literature concerning glass, cataclasite, hornfels, and \"basalt\" of noritic composition returned by other Apollo missions. However, the cumulus texture of the boulder precludes its being representative of any magmatic liquid composition, suggests that the lunar crust is heterogeneously layered, and that plagioclase sank, not floated, in magmatic liquids that formed the lunar crust. © 1975 Geological Society of America.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1975)86<433:SAPOAC>2.0.CO;2","issn":"00167606","usgsCitation":"Jackson, E.D., Sutton, R.L., and Wilshire, H.G., 1975, Structure and petrology of a cumulus norite boulder sampled by Apollo 17 in Taurus-Littrow Valley, the Moon: Geological Society of America Bulletin, v. 86, no. 4, p. 433-442, https://doi.org/10.1130/0016-7606(1975)86<433:SAPOAC>2.0.CO;2.","productDescription":"10 p. ","startPage":"433","endPage":"442","costCenters":[],"links":[{"id":369309,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"the Moon ","volume":"86","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Jackson, E. D.","contributorId":120010,"corporation":false,"usgs":true,"family":"Jackson","given":"E.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":775557,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sutton, R. L.","contributorId":24364,"corporation":false,"usgs":true,"family":"Sutton","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":775558,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilshire, H. G.","contributorId":36125,"corporation":false,"usgs":false,"family":"Wilshire","given":"H.","middleInitial":"G.","affiliations":[],"preferred":false,"id":775559,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70187729,"text":"70187729 - 1975 - Radiometric age map of Aleutian Islands","interactions":[],"lastModifiedDate":"2017-06-07T16:50:16","indexId":"70187729","displayToPublicDate":"1975-12-31T00:00:00","publicationYear":"1975","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5403,"text":"Alaska Division of Geological & Geophysical Surveys Open File Report","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"DGGS AOF 83","title":"Radiometric age map of Aleutian Islands","docAbstract":"This map includes published, thesis, and open-file radiometric data available to us as of June, 1975. Some dates are not plotted because of inadequate location data in the original references.
The map is divided into five sections, based on 1:1,000,000 scale enlargements of the National Atlas maps of Alaska. Within each section (e.g., southeastern Alaska), radiometric dates are plotted and keyed to 1:250,000 scale quadrangles. Accompanying each map section is table 1, listing map numbers and the sample identification numbers used in DGGS Special Report 10: Radiometric Dates from Alaska-A 1975 Compilation”. The reader is referred to Special Report 10 for more complete information on location, rock type, dating method, and literature references for each age entry. A listing of dates in Special Report lo which require correction or deletion is included S table 2. Corrected and additional entries are listed in table 3. The listings in tables 2 and 3 follow the format of Special Report 10. Table 4 is a glossary of abbreviations used for quadrangle name, rock type, mineral dated, and type of dating method used.
","language":"English","publisher":"Alaska Division of Geological & Geophysical Surveys","publisherLocation":"Fairbanks, AK","doi":"10.14509/179","usgsCitation":"Wilson, F.H., and Turner, D.L., 1975, Radiometric age map of Aleutian Islands: Alaska Division of Geological & Geophysical Surveys Open File Report DGGS AOF 83, Map: 53.16 x 36.00 inches, https://doi.org/10.14509/179.","productDescription":"Map: 53.16 x 36.00 inches","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":480636,"rank":7,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14509/179","text":"Publisher Index Page"},{"id":341685,"rank":6,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187736","text":"Radiometric dates from Alaska: A 1975 compilation"},{"id":341684,"rank":5,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187735","text":"Radiometric age map of northern Alaska"},{"id":341683,"rank":4,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187732","text":"Radiometric age map of southcentral Alaska"},{"id":341682,"rank":3,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187731","text":"Radiometric age map of southwest Alaska"},{"id":341681,"rank":2,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70186560","text":"Radiometric age map of southeast Alaska"},{"id":341355,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Aleutian Islands","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {\n \"stroke\": \"#555555\",\n \"stroke-width\": 2,\n \"stroke-opacity\": 1,\n \"fill\": \"#555555\",\n \"fill-opacity\": 0.5\n },\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -188.701171875,\n 52.5897007687178\n ],\n [\n -185.9765625,\n 50.680797145321655\n ],\n [\n -181.23046875,\n 49.61070993807422\n ],\n [\n -165.146484375,\n 52.3755991766591\n ],\n [\n -161.103515625,\n 53.48804553605622\n ],\n [\n -157.763671875,\n 54.77534585936447\n ],\n [\n -155.21484375,\n 55.825973254619015\n ],\n [\n -150.64453125,\n 57.51582286553883\n ],\n [\n -151.30371093749997,\n 58.95000823335702\n ],\n [\n -153.72070312499997,\n 59.689926220143356\n ],\n [\n -157.32421875,\n 58.90464570302001\n ],\n [\n -158.90625,\n 58.49369382056807\n ],\n [\n -163.65234374999997,\n 56.75272287205736\n ],\n [\n -166.2890625,\n 55.57834467218206\n ],\n [\n -170.068359375,\n 54.316523240258256\n ],\n [\n -174.0234375,\n 53.85252660044951\n ],\n [\n -179.736328125,\n 53.12040528310657\n ],\n [\n -185.537109375,\n 53.38332836757156\n ],\n [\n -187.294921875,\n 53.80065082633023\n ],\n [\n -188.349609375,\n 53.592504809039376\n ],\n [\n -188.701171875,\n 52.5897007687178\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"591c0fd8e4b0a7fdb43ddf2c","contributors":{"authors":[{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":695348,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, D. L.","contributorId":53776,"corporation":false,"usgs":true,"family":"Turner","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":695349,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70187736,"text":"70187736 - 1975 - Radiometric dates from Alaska: A 1975 compilation","interactions":[],"lastModifiedDate":"2025-09-24T16:06:37.555728","indexId":"70187736","displayToPublicDate":"1975-12-31T00:00:00","publicationYear":"1975","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5405,"text":"Alaska Division of Geological & Geophysical Surveys Special Report","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"DGGS SR 10","title":"Radiometric dates from Alaska: A 1975 compilation","docAbstract":"The following table of radiometric dates from Alaska includes published material through 1972 as well as some selected later data. The table includes 726 mineral and whole-rock dates determined by the K-Ar, Rb-Sr, fission-track U-Pb, and Pb-alpha techniques.
The data are organized in alphabetical order of the 1:250,000 scale quadrangles in which the dated rocks are located. The latitude and longitude of each sample are given. In addition, each sample is located on a 1:250,000 quadrangle map by a grid system. The initial point of the grid is taken as the southwest corner of the quadrangle and the location of the sample is measured in inches east and inches north from that corner, e.g., \"156E 126N\" indicated 15.6 inches east and 12.6 inches north of the southwest corner of the quadrangle. Zeroes in the location columns for some dates indicate that accurate locations are not available.
Rock type, dating method, mineral dated, radiometric age, sample identification number, and reference are also listed where possible. Short comments, mostly geographic locality names, are given for some dates. These comments have been taken from the original references.
Sample identification numbers beginning with \"AA\" or \"BB\" have been assigned arbitrarily in cases where sample numbers were not assigned in the original references. Abbreviations are explained in the appendix at the end of table 1.
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","language":"English","publisher":"Alaska Division of Geological & Geophysical Surveys","publisherLocation":"Fairbanks, AK","doi":"10.14509/182","usgsCitation":"Wilson, F.H., and Turner, D.L., 1975, Radiometric age map of northern Alaska: Alaska Division of Geological & Geophysical Surveys Open File Report DGGS AOF 86, Map: 53.40 x 36.00 inches, https://doi.org/10.14509/182.","productDescription":"Map: 53.40 x 36.00 inches","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":480632,"rank":7,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14509/182","text":"Publisher Index Page"},{"id":341366,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341706,"rank":6,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187736","text":"Radiometric dates from Alaska: A 1975 compilation"},{"id":341705,"rank":5,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187732","text":"Radiometric age map of southcentral Alaska"},{"id":341704,"rank":4,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187731","text":"Radiometric age map of southwest Alaska"},{"id":341703,"rank":3,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187729","text":"Radiometric age map of Aleutian Islands"},{"id":341702,"rank":2,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70186560","text":"Radiometric age map of southeast Alaska"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -169,\n 64\n ],\n [\n -141,\n 64\n ],\n [\n -138,\n 72\n ],\n [\n -172,\n 72\n ],\n [\n -169,\n 64\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"591c0fd8e4b0a7fdb43ddf26","contributors":{"authors":[{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":695377,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, D. L.","contributorId":53776,"corporation":false,"usgs":true,"family":"Turner","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":695378,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70187731,"text":"70187731 - 1975 - Radiometric age map of southwest Alaska","interactions":[],"lastModifiedDate":"2017-06-07T16:50:29","indexId":"70187731","displayToPublicDate":"1975-12-31T00:00:00","publicationYear":"1975","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5403,"text":"Alaska Division of Geological & Geophysical Surveys Open File Report","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"DGGS AOF 84","title":"Radiometric age map of southwest Alaska","docAbstract":"This map includes published, thesis, and open-file radiometric data available to us as of June, 1975. Some dates are not plotted because of inadequate location data in the original references.
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","language":"English","publisher":"Alaska Division of Geological & Geophysical Surveys","publisherLocation":"Fairbanks, AK","doi":"10.14509/180","usgsCitation":"Wilson, F.H., and Turner, D.L., 1975, Radiometric age map of southwest Alaska: Alaska Division of Geological & Geophysical Surveys Open File Report DGGS AOF 84, Map: 50.17 x 36.00 inches, https://doi.org/10.14509/180.","productDescription":"Map: 50.17 x 36.00 inches","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":480630,"rank":7,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14509/180","text":"Publisher Index Page"},{"id":341358,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341690,"rank":3,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187729","text":"Radiometric age map of Aleutian Islands"},{"id":341689,"rank":2,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70186560","text":"Radiometric age map of southeast Alaska"},{"id":341693,"rank":6,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187736","text":"Radiometric dates from Alaska: A 1975 compilation"},{"id":341692,"rank":5,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187735","text":"Radiometric age map of northern Alaska"},{"id":341691,"rank":4,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187732","text":"Radiometric age map of southcentral Alaska"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -175,\n 65\n ],\n [\n -152,\n 65\n ],\n [\n -152,\n 57\n ],\n [\n -175,\n 57\n ],\n [\n -175,\n 65\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"591c0fd8e4b0a7fdb43ddf2a","contributors":{"authors":[{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":695359,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, D. L.","contributorId":53776,"corporation":false,"usgs":true,"family":"Turner","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":695360,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70186560,"text":"70186560 - 1975 - Radiometric age map of southeast Alaska","interactions":[],"lastModifiedDate":"2017-06-07T16:26:42","indexId":"70186560","displayToPublicDate":"1975-12-31T00:00:00","publicationYear":"1975","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5403,"text":"Alaska Division of Geological & Geophysical Surveys Open File Report","active":false,"publicationSubtype":{"id":2}},"title":"Radiometric age map of southeast Alaska","docAbstract":"This map includes published, thesis, and open-file radiometric data available to us as of June, 1975. Some dates are not plotted because of inadequate location data in the original references.
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","language":"English","publisher":"Alaska Division of Geological & Geophysical Surveys","doi":"10.14509/178","usgsCitation":"Wilson, F.H., and Turner, D.L., 1975, Radiometric age map of southeast Alaska: Alaska Division of Geological & Geophysical Surveys Open File Report, Map: 26.42 x 38.17 inches, https://doi.org/10.14509/178.","productDescription":"Map: 26.42 x 38.17 inches","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":480631,"rank":7,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14509/178","text":"Publisher Index Page"},{"id":341677,"rank":6,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187736","text":"Radiometric dates from Alaska: A 1975 compilation"},{"id":341676,"rank":5,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187735","text":"Radiometric age map of northern Alaska"},{"id":341675,"rank":4,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187732","text":"Radiometric age map of southcentral Alaska"},{"id":341673,"rank":2,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187729","text":"Radiometric age map of Aleutian Islands"},{"id":341674,"rank":3,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187731","text":"Radiometric age map of southwest Alaska"},{"id":339228,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -130,\n 53\n ],\n [\n -129,\n 61\n ],\n [\n -140,\n 61\n ],\n [\n -139,\n 53\n ],\n [\n -130,\n 53\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e60287e4b09da6799ac701","contributors":{"authors":[{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":689580,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, D. L.","contributorId":53776,"corporation":false,"usgs":true,"family":"Turner","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":689581,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70187732,"text":"70187732 - 1975 - Radiometric age map of southcentral Alaska","interactions":[],"lastModifiedDate":"2017-06-07T16:50:42","indexId":"70187732","displayToPublicDate":"1975-12-31T00:00:00","publicationYear":"1975","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5403,"text":"Alaska Division of Geological & Geophysical Surveys Open File Report","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"DGGS AOF 85","title":"Radiometric age map of southcentral Alaska","docAbstract":"This map includes published, thesis, and open-file radiometric data available to us as of June, 1975. Some dates are not plotted because of inadequate location data in the original references.
The map is divided into five sections, based on 1:1,000,000 scale enlargements of the National Atlas maps of Alaska. Within each section (e.g., southeastern Alaska), radiometric dates are plotted and keyed to 1:250,000 scale quadrangles. Accompanying each map section is table 1, listing map numbers and the sample identification numbers used in DGGS Special Report 10: Radiometric Dates from Alaska-A 1975 Compilation”. The reader is referred to Special Report 10 for more complete information on location, rock type, dating method, and literature references for each age entry. A listing of dates in Special Report lo which require correction or deletion is included S table 2. Corrected and additional entries are listed in table 3. The listings in tables 2 and 3 follow the format of Special Report 10. Table 4 is a glossary of abbreviations used for quadrangle name, rock type, mineral dated, and type of dating method used.
","language":"English","publisher":"Alaska Division of Geological & Geophysical Surveys","publisherLocation":"Fairbanks, AK","doi":"10.14509/181","usgsCitation":"Wilson, F.H., and Turner, D.L., 1975, Radiometric age map of southcentral Alaska: Alaska Division of Geological & Geophysical Surveys Open File Report DGGS AOF 85, Map: 40.33 x 34.50 inches, https://doi.org/10.14509/181.","productDescription":"Map: 40.33 x 34.50 inches","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":480633,"rank":7,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14509/181","text":"Publisher Index Page"},{"id":341361,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341695,"rank":3,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187729","text":"Radiometric age map of Aleutian Islands"},{"id":341696,"rank":4,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187731","text":"Radiometric age map of southwest Alaska"},{"id":341694,"rank":2,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70186560","text":"Radiometric age map of southeast Alaska"},{"id":341697,"rank":5,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187735","text":"Radiometric age map of northern Alaska"},{"id":341698,"rank":6,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/70187736","text":"Radiometric dates from Alaska: A 1975 compilation"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -154,\n 58\n ],\n [\n -138,\n 58\n ],\n [\n -138,\n 65\n ],\n [\n -154,\n 65\n ],\n [\n -154,\n 58\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"591c0fd8e4b0a7fdb43ddf28","contributors":{"authors":[{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":695364,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, D. L.","contributorId":53776,"corporation":false,"usgs":true,"family":"Turner","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":695365,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70197785,"text":"70197785 - 1975 - Effect of geologic structure and metamorphic fluids on seismic behavior of the San Andreas fault system in central and northern California","interactions":[],"lastModifiedDate":"2018-09-18T11:16:07","indexId":"70197785","displayToPublicDate":"1975-12-31T00:00:00","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Effect of geologic structure and metamorphic fluids on seismic behavior of the San Andreas fault system in central and northern California","docAbstract":"No abstract available.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1975)3<713:EOGSAM>2.0.CO;2","usgsCitation":"Irwin, W., and Barnes, I., 1975, Effect of geologic structure and metamorphic fluids on seismic behavior of the San Andreas fault system in central and northern California: Geology, v. 3, no. 12, p. 713-716, https://doi.org/10.1130/0091-7613(1975)3<713:EOGSAM>2.0.CO;2.","productDescription":"4 p.","startPage":"713","endPage":"716","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355196,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Andreas fault system","volume":"3","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Irwin, William P.","contributorId":12889,"corporation":false,"usgs":true,"family":"Irwin","given":"William P.","affiliations":[],"preferred":false,"id":738486,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barnes, Ivan","contributorId":56619,"corporation":false,"usgs":true,"family":"Barnes","given":"Ivan","email":"","affiliations":[],"preferred":false,"id":738487,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70207384,"text":"70207384 - 1975 - Chemical compositions of Kilauea east-rift lava, 1968–1971","interactions":[],"lastModifiedDate":"2020-06-03T15:13:20.720167","indexId":"70207384","displayToPublicDate":"1975-12-18T13:45:05","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Chemical compositions of Kilauea east-rift lava, 1968–1971","docAbstract":"The major element chemical compositions of lava from four eruptions on the east rift zone of Kilauea between August 1968 and October 1971 reflect three petrologic processes:
Production of chemically distinct batches of magma in the mantle.
Separation of olivine, augite, and plagioclase from liquid during flow in the rift-zone conduits.
Mixing of different magmas during ascent to the surface.
Chemically none of the four Kilauea east-rift eruptions matches the preceding summit eruption in Halemaumau that ended in July 1968. The Mauna Ulu eruption, May 1969 to October 1971 (the last of flie east-rift eruptions), can be divided into five olivine-controlled and chemically distinct variants. Three of these characterize the first seven months of the eruption and are closest in composition to the 1967–8 Halemaumau eruption. Variants 4 and 5 were erupted later and have compositions that are distinctly different from that of the 1967–8 eruption. Major differences are higher Al2O3 (0·15–0·23 per cent), and lower K2O (0·07–0·10 per cent) and TiO2 (0·12–0·23 per cent) in variants 4 and 5 at the same MgO content. Some lavas from eruptions in August and October 1968 and February 1969, have olivine-controlled magma compositions that are identical to mixtures of Mauna Ulu variants 1–3 and the 1967–8 composition. This observation fits an hypothesis advanced earlier by T. L. Wright and R. S. Fiske that magmas in the central magma chamber become mixed with magmas in the rift zone and can be identified as mixing components of rift eruption magmas before they appear as distinctive magmas in summit eruptions.
Lavas representing mixing of olivine-controlled magma with differentiated magma were erupted in October 1968, February 1969, and in May and December 1969.
The changes in amount of K2O and TiO2 during the latter part of the 1969–71 Mauna Ulu eruption are the reverse of the overall secular change in composition of Kilauea summit lavas from pre-1750 through 1967–8. The K2O and TiO2 contents of the latest overflows during the 1969–71 Mauna Ulu eruption (April 1971) are comparable to that of lava erupted at Kilauea summit prior to 1750.
The changing chemistry of Kilauea magma is found to be of use as a ‘tracer’ in the complex Kilauea conduit system. Application of these data to older lava sequences is difficul because of the complexity of the processes controlling lava composition and the absence of detailed information about the time-space chemical variation during individual eruptions.
","language":"English","publisher":"Oxford University Press","doi":"10.1093/petrology/16.1.110","usgsCitation":"Wright, T., Swanson, D., and Duffield, W.A., 1975, Chemical compositions of Kilauea east-rift lava, 1968–1971: Journal of Petrology, v. 16, no. 1, p. 110-133, https://doi.org/10.1093/petrology/16.1.110.","productDescription":"24 p.","startPage":"110","endPage":"133","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":370424,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -155.5499267578125,\n 19.002399756194887\n ],\n [\n -155.26702880859375,\n 19.235956641468505\n ],\n [\n -154.89898681640625,\n 19.35001948171314\n ],\n [\n -154.98687744140625,\n 19.531318700282522\n ],\n [\n -155.28900146484375,\n 19.694314241825747\n ],\n [\n -155.4071044921875,\n 19.611543503814232\n ],\n [\n -155.665283203125,\n 19.407021044033193\n ],\n [\n -155.73394775390625,\n 19.178895462707946\n ],\n [\n -155.5499267578125,\n 19.002399756194887\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"16","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Wright, Thomas L. twright@usgs.gov","contributorId":3890,"corporation":false,"usgs":true,"family":"Wright","given":"Thomas L.","email":"twright@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":777874,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swanson, Don 0000-0002-1680-3591 donswan@usgs.gov","orcid":"https://orcid.org/0000-0002-1680-3591","contributorId":168817,"corporation":false,"usgs":true,"family":"Swanson","given":"Don","email":"donswan@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":777875,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Duffield, Wendell A.","contributorId":14363,"corporation":false,"usgs":true,"family":"Duffield","given":"Wendell","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":777876,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70207348,"text":"70207348 - 1975 - Chino Valley formation (Cambrian?) in northwestern Arizona","interactions":[],"lastModifiedDate":"2020-06-03T14:09:06.968814","indexId":"70207348","displayToPublicDate":"1975-12-17T13:50:39","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Chino Valley formation (Cambrian?) in northwestern Arizona","docAbstract":"A thin persistent unit (maximum thickness 13 m) of probable Cambrian age in the Chino Valley region of northwestern Arizona consists of three laterally equivalent, mutually exclusive lithofacies. These are, from west to east, lithic sandstone, pebble to boulder conglomerate, and dolomite. The unit, named the Chino Valley Formation, is younger than middle Middle Cambrian and older than Devonian in age. A Late Cambrian age is probable, although no fossil evidence supports this conclusion.
The lithic sandstone and conglomerate facies were derived from two apparently active source areas and were probably deposited in shallow marine water. Uplift to the south or southwest of the area almost reversed the regionally westward-dipping Cambrian paleoslope and exposed sedimentary rocks to erosion. Sediment derived from this terrain formed the lithic sandstone facies. Synchronous movement initiated erosion of the Mazatzal Quartzite (Precambrian) from which the conglomerate facies was derived. The dolomite facies is inferred to have accumulated on a mud flat in the supratidal zone.
","language":"English","publisher":"Geographical Society of America","doi":"10.1130/0016-7606(1975)86<677:CVFCIN>2.0.CO;2","usgsCitation":"Hereford, R., 1975, Chino Valley formation (Cambrian?) in northwestern Arizona: GSA Bulletin, v. 86, no. 5, p. 677-682, https://doi.org/10.1130/0016-7606(1975)86<677:CVFCIN>2.0.CO;2.","productDescription":"6 p.","startPage":"677","endPage":"682","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":370372,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Chino Valley region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -113.4228515625,\n 34.52466147177172\n ],\n [\n -111.99462890625,\n 34.52466147177172\n ],\n [\n -111.99462890625,\n 35.33529320309328\n ],\n [\n -113.4228515625,\n 35.33529320309328\n ],\n [\n -113.4228515625,\n 34.52466147177172\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"86","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hereford, Richard 0000-0002-0892-7367 rhereford@usgs.gov","orcid":"https://orcid.org/0000-0002-0892-7367","contributorId":3620,"corporation":false,"usgs":true,"family":"Hereford","given":"Richard","email":"rhereford@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":777780,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70207257,"text":"70207257 - 1975 - Discussion of uranium availability and the breeder decision","interactions":[],"lastModifiedDate":"2020-06-01T19:59:46.088584","indexId":"70207257","displayToPublicDate":"1975-12-13T13:39:56","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5749,"text":"Energy Systems and Policy","active":true,"publicationSubtype":{"id":10}},"title":"Discussion of uranium availability and the breeder decision","docAbstract":"No abstract available.
","language":"English","publisher":"Elsevier","usgsCitation":"Finch, W., Fischer, R.P., Butler, A., Masters, C., and Stead, F.W., 1975, Discussion of uranium availability and the breeder decision: Energy Systems and Policy, v. 1, no. 3, p. 259-269.","productDescription":"11 p.","startPage":"259","endPage":"269","costCenters":[],"links":[{"id":370264,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Finch, W.I.","contributorId":75919,"corporation":false,"usgs":true,"family":"Finch","given":"W.I.","email":"","affiliations":[],"preferred":false,"id":777474,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fischer, R. P.","contributorId":89958,"corporation":false,"usgs":true,"family":"Fischer","given":"R.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":777475,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Butler, A.P. Jr.","contributorId":22414,"corporation":false,"usgs":true,"family":"Butler","given":"A.P.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":777476,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Masters, C.D.","contributorId":96664,"corporation":false,"usgs":true,"family":"Masters","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":777477,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stead, F. W.","contributorId":120710,"corporation":false,"usgs":true,"family":"Stead","given":"F.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":777478,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70207194,"text":"70207194 - 1975 - Crustal movement investigations","interactions":[],"lastModifiedDate":"2020-06-01T12:49:27.407828","indexId":"70207194","displayToPublicDate":"1975-12-11T13:52:35","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3283,"text":"Reviews of Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Crustal movement investigations","docAbstract":"Studies of horizontal crustal movement using conventional geodetic methods have been considerably expanded in the quadrennium 1971–1974. The basic fault monitor Geodimeter network now covers most of the major faults in California as well as the zone of faulting that extends into Nevada. Isolated Geodimeter networks in seismic areas of Montana, New Mexico, Utah, and Washington are also monitored. Part of the Geodimeter network along the San Andreas fault has been monitored for over 15 yr, and there appears to be a systematic deviation from a linear trend for most of the lines [Greensfelder and Bennett, 1973; Savage et al., 1973]. However, this deviation may be an artifact of a change in survey procedures in mid‐1969. The conclusions that can be drawn from the Geodimeter observations at present are the following: (1) The present apparent interplate motion across the San Andreas fault in central California is only 30–40 mm/yr [Savage and Burford, 1973], in contrast to the average of 50–60 mm/yr as estimated from magnetic anomalies at the mouth of the Gulf of California. (2) Measurements of fault creep on the creeping segment of the San Andreas fault agree reasonably well with the plate movement indicated by geodetic measurements, this agreement suggesting that fault creep on this segment is the principal mode of accommodation [Savage and Burford, 1971]. (3) The rate of strain accumulation along the San Andreas fault is not well measured anywhere, but the overall tensor strain rate appears to be about 0.3 microstrain/yr or less [Savage et al., 1973]. A considerable effort has also been expended reanalyzing old triangulation data for networks that cross the San Andreas fault. In such a study, Thatcher [1974] deduced evidence for several meters of afterslip on the San Andreas fault at depths greater than 10 km following the 1906 earthquake. This appears at the surface as a very rapid accumulation of strain in the years immediately following the earthquake. Meade [1974] has called attention to a remarkably uniform change of the astronomic azimuth with time for a line that crosses the San Andreas fault about 35 km south of the southern terminus of the 1906 rupture. This change of azimuth implies a uniform right lateral motion across the fault amounting to 32 mm/yr in the period 1885–1962. By comparing a 1942 triangulation survey and a 1970 Geodimeter survey, Page [1972] found neither lateral slip nor shear strain accumulation consistent with lateral slip across the Denali fault in Alaska. He did observe a north‐south extension that was possibly an effect of strain release at the time of the 1964 Alaska earthquake.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/RG013i003p00263","usgsCitation":"Savage, J.C., 1975, Crustal movement investigations: Reviews of Geophysics, v. 13, no. 3, p. 263-265, https://doi.org/10.1029/RG013i003p00263.","productDescription":"3 p.","startPage":"263","endPage":"265","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":370175,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"3","noUsgsAuthors":false,"publicationDate":"2010-06-14","publicationStatus":"PW","contributors":{"authors":[{"text":"Savage, James C. 0000-0002-5114-7673 jasavage@usgs.gov","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":2412,"corporation":false,"usgs":true,"family":"Savage","given":"James","email":"jasavage@usgs.gov","middleInitial":"C.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":777237,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70236971,"text":"70236971 - 1975 - Land classification of south-central Iowa from computer enhanced images","interactions":[],"lastModifiedDate":"2022-09-23T17:36:40.388876","indexId":"70236971","displayToPublicDate":"1975-11-01T12:18:04","publicationYear":"1975","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":66,"text":"Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"3","title":"Land classification of south-central Iowa from computer enhanced images","docAbstract":"The author has identified the following significant results. Two enhanced false color negatives from multispectral scanner scenes, dated 15 April 1974 and 29 August 1972, were printed at a scale of 1:125,000 to form the basis for land use interpretations in the Wapello County, Iowa test site. The use of geomorphic principles proved valuable in the interpretation of the April scene to form valuable generalizations for planning purposes on soil associations, topography, alluvial valleys, and agricultural land use. The August scene was superior in providing information on urban extent, transportation networks, forest cover, and water bodies.
","language":"English","publisher":"National Aeronautics and Space Administration","usgsCitation":"Lucas, J.R., Taranik, J.V., and Billingsley, F.C., 1975, Land classification of south-central Iowa from computer enhanced images: Report 3, iv, 42 p.","productDescription":"iv, 42 p.","costCenters":[],"links":[{"id":407275,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":407274,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://ntrs.nasa.gov/api/citations/19760011495/downloads/19760011495.pdf","size":"4178 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Iowa","county":"Wapello County","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-92.1816,41.1617],[-92.1802,41.0741],[-92.1799,40.987],[-92.1798,40.8994],[-92.2959,40.8992],[-92.4096,40.8989],[-92.5251,40.8984],[-92.64,40.8979],[-92.6395,40.985],[-92.641,41.0699],[-92.6441,41.1597],[-92.527,41.1602],[-92.4116,41.1611],[-92.2981,41.1615],[-92.1816,41.1617]]]},\"properties\":{\"name\":\"Wapello\",\"state\":\"IA\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Lucas, James R.","contributorId":149239,"corporation":false,"usgs":false,"family":"Lucas","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":852868,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taranik, James V.","contributorId":67514,"corporation":false,"usgs":true,"family":"Taranik","given":"James","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":852869,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Billingsley, Frederic C.","contributorId":149240,"corporation":false,"usgs":false,"family":"Billingsley","given":"Frederic","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":852870,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70232677,"text":"70232677 - 1975 - Generation of potassium-poor magmas in the northern Sierra Nevada and the Svecofennian of Finland","interactions":[],"lastModifiedDate":"2022-07-11T17:01:46.527743","indexId":"70232677","displayToPublicDate":"1975-11-01T11:52:11","publicationYear":"1975","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Generation of potassium-poor magmas in the northern Sierra Nevada and the Svecofennian of Finland","docAbstract":"Comparison of the evolution of magmas in the Precambrian of southwestern Finland with that in the Paleozoic and Mesozoic of the northern Sierra Nevada brings out features that may clarify the origin of potassium-poor silicic magmas. In the northern Sierra Nevada, Paleozoic sodarhyolitic effusive rocks and associated trondhjemite represent silicic differentiates of andesitic magmas formed near a Benioff zone. These potassium-poor magmas were formed early, before thickening of the crust, and were followed by basaltic and rhyolitic magmas with normal potassium content. In southwestern Finland, where 70 percent of the area is covered by silicic and intermediate plutonic rocks, the early synkinematic intrusive masses are trondhjemitic and the later ones are granitic with eutectic ratios of quartz, plagioclase, and potassium feldspar. The latest granites are exceptionally rich in potassium feldspar. The oldest rocks, cordierite-garnet-sillimanite gneisses and interbedded metavolcanic rocks, are folded on gently plunging axes that steepen diapirically around large late-kinematic plutonic masses. Trondhjemite occurs as thin sheetlike masses parallel to the folded bedding and could not have traveled far without losing its initial heat. Therefore it seems that the trondhjemitic magma was formed at shallow depths. By analogy with the shallow depth of early magma generation in the northern Sierra Nevada, it is suggested that the trondhjemitic magmas in Finland formed at mantle depths near a Benioff zone or at the base of the early thin crust at pressures where phlogopite or biotite was stable. Later, after thickening of the crust above, potassium from the biotite was released, making the late kinematic magmas rich in potassium. A plate-tectonic model of an island-arc environment explains the coeval age of the Svecofennian and \"Karelian\" foldbelts and the increase of potassium with decreasing age in the extrusive and intrusive magmas.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Hietanen, A., 1975, Generation of potassium-poor magmas in the northern Sierra Nevada and the Svecofennian of Finland: Journal of Research of the U.S. Geological Survey, v. 3, no. 6, p. 631-645.","productDescription":"15 p.","startPage":"631","endPage":"645","costCenters":[],"links":[{"id":403417,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403415,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1975/vol3issue6/report.pdf"}],"country":"Finland, United states","otherGeospatial":"northern Sierra Nevada, Svecofennian block","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.53076171875,\n 39.45316112807394\n ],\n [\n -120.32226562500001,\n 39.45316112807394\n ],\n [\n -120.32226562500001,\n 40.48038142908172\n ],\n [\n -121.53076171875,\n 40.48038142908172\n ],\n [\n -121.53076171875,\n 39.45316112807394\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 22.631835937499996,\n 60.726943611101966\n ],\n [\n 28.037109375,\n 60.726943611101966\n ],\n [\n 28.037109375,\n 63.65601144183318\n ],\n [\n 22.631835937499996,\n 63.65601144183318\n ],\n [\n 22.631835937499996,\n 60.726943611101966\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"3","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hietanen, Anna","contributorId":43841,"corporation":false,"usgs":true,"family":"Hietanen","given":"Anna","affiliations":[],"preferred":false,"id":846232,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}