The purpose of a seismotectonic map is to describe the distribution of historic seismic activity in relation to geologic structures and tectonic provinces and to identify structures or regions that are characterized by consistent relations between seismic activity and structural features. An experimental study to test the feasibility of preparing such a map and its usefulness in evaluating earthquake hazards was initiated jointly by the U.S. Geological Survey and the former Seismology Division of the National Oceanic and Atmospheric Administration; financial support was provided by the U.S. Atomic Energy Commission. It was hoped that the study would develop evidence for the existence of tectonic regions or structural provinces that are useful in defining parameters of seismic hazard in relation to engineered structures. As with many experiments, this one did not produce the results envisioned at the outset, but it did result, we think, in assembling seismic and structural data useful in evaluating the distribution and origin of earthquakes in the eastern part of the United States and in delimiting areas of relative seismic activity.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf620","isbn":"060780047X","usgsCitation":"Hadley, J.B., and Devine, J.F., 1974, Seismotectonic map of the Eastern United States: U.S. Geological Survey Miscellaneous Field Studies Map 620, 4 Sheets: 25.49 x 32.39 inches or smaller, https://doi.org/10.3133/mf620.","productDescription":"4 Sheets: 25.49 x 32.39 inches or smaller","costCenters":[],"links":[{"id":360488,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0620/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":360486,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0620/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":360487,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0620/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":360489,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0620/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":185426,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0620/report-thumb.jpg"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -96,25 ], [ -96,49 ], [ -64,49 ], [ -64,25 ], [ -96,25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4e01","contributors":{"authors":[{"text":"Hadley, Jarvis B.","contributorId":24346,"corporation":false,"usgs":true,"family":"Hadley","given":"Jarvis","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":262347,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Devine, James F. jdevine@usgs.gov","contributorId":4615,"corporation":false,"usgs":true,"family":"Devine","given":"James","email":"jdevine@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":262348,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":13495,"text":"ofr74158 - 1974 - Geologic and hydrologic considerations for various concepts of high-level radioactive waste disposal in conterminous United States","interactions":[],"lastModifiedDate":"2012-02-02T00:06:37","indexId":"ofr74158","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1974","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":"74-158","title":"Geologic and hydrologic considerations for various concepts of high-level radioactive waste disposal in conterminous United States","docAbstract":"The purpose of this investigation is to evaluate and identify which geohydrologic environments in conterminous United States are best suited for various concepts or methods of underground disposal of high-level radioactive wastes and to establish geologic and hydrologic criteria that are pertinent to high-level waste disposal. The unproven methods of disposal include (1) a very deep drill hole (30,000-50,000 ft or 9,140-15,240 m), (2) a matrix of (an array of multiple) drill holes (1,000-20,000 ft or 305-6,100 m), (3) a mined chamber (1,000-10,000 ft or 305-3,050 m), (4) a cavity with separate manmade structures (1,000-10,000 ft or 305-3,050 m), and (5) an exploded cavity (2,000-20,000 ft or 610-6,100 m) o \r\n\r\nThe geohydrologic investigation is made on the presumption that the concepts or methods of disposal are technically feasible. Field and laboratory experiments in the future may demonstrate whether or not any of the methods are practical and safe. All the conclusions drawn are tentative pending experimental confirmation. The investigation focuses principally on the geohydrologic possibilities of several methods of disposal in rocks other than salt. Disposal in mined chambers in salt is currently under field investigation, and this disposal method has been intensely investigated and evaluated by various workers under the sponsorship of the Atomic Energy Commission. \r\n\r\nOf the various geohydrologic factors that must be considered in the selection of optimum waste-disposal sites, the most important is hydrologic isolation to assure that the wastes will be safely contained within a small radius of the emplacement zone. To achieve this degree of hydrologic isolation, the host rock for the wastes must have very low permeability and the site must be virtually free of faults. In addition, the locality should be in (1) an area of low seismic risk where the possibility of large earthquakes rupturing the emplacement zone is very low, (2) where the possibility- of flooding by rise is very low, (3) where a possible return of glacial or pluvial climate will not cause potentially hazardous changes in surface- or ground-water regimens, and (4) where danger of exhumation by erosion is nil. The geographic location for an optimum site is one that is far removed from major drainages, lakes, and oceans, where population density is low, and where the topographic relief is gentle in order to avoid steep surface-water drainage gradients that would allow rapid distribution of contaminants in case of accident. \r\n\r\nThe most suitable medium for the unproven deep drill-hole, matrix-holes, and exploded-cavity methods appears to be crystalline rocks, either intrusive igneous or metamorphic because of their potentially low permeabilities and high mechanical strengths. Salt (either in thick beds or stable domes), tuff, and possibly shale appear to be suitable for mined chambers and cavities with separate manmade structures. Salt appears to be suitable because of its very low permeability, high thermal conductivity, and natural plasticity. Tuff and shale appear suitable because of their very low permeabilities and high ion-exchange capacities. Sedimentary rocks other than shale and volcanic rocks, exclusive of tuff, are considered to be generally unsuitable for waste emplacement because of their potentially high permeabilities. \r\n\r\nAreas that appear to satisfy most geohydrologic requirements for the deep drill hole and the matrix holes include principally (1) the stable continental interior where the sedimentary cover is thin or absent, (2) the shield area of the North-Central States, and (3) the metamorphic belt of Eastern United States--primarily the Piedmont. These areas are possibly suitable also for the exploded cavity and the mined chamber because the possibility of finding rock with very- permeability at depths from 1,000? feet (305? m) to 20,000 feet (6,100 m) appears to be high. \r\n\r\nThe Basin and Range province of Western United States, particula","language":"ENGLISH","publisher":"U.S. Geological Survey],","doi":"10.3133/ofr74158","usgsCitation":"Ekren, E.B., Dinwiddie, G., Mytton, J., Thordarson, W., Weir, J.E., Hinrichs, E., and Schroder, L., 1974, Geologic and hydrologic considerations for various concepts of high-level radioactive waste disposal in conterminous United States: U.S. Geological Survey Open-File Report 74-158, x, 219 p. :ill., maps; (229 p. - PGS), https://doi.org/10.3133/ofr74158.","productDescription":"x, 219 p. :ill., maps; (229 p. - PGS)","costCenters":[],"links":[{"id":144361,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1974/0158/report-thumb.jpg"},{"id":41973,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1974/0158/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":41974,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1974/0158/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":41975,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1974/0158/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a81ff","contributors":{"authors":[{"text":"Ekren, E. B.","contributorId":14371,"corporation":false,"usgs":true,"family":"Ekren","given":"E.","middleInitial":"B.","affiliations":[],"preferred":false,"id":167890,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dinwiddie, G.A.","contributorId":49798,"corporation":false,"usgs":true,"family":"Dinwiddie","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":167894,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mytton, J. W.","contributorId":38994,"corporation":false,"usgs":true,"family":"Mytton","given":"J. W.","affiliations":[],"preferred":false,"id":167893,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thordarson, William","contributorId":23539,"corporation":false,"usgs":true,"family":"Thordarson","given":"William","email":"","affiliations":[],"preferred":false,"id":167891,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Weir, J. E. Jr.","contributorId":102476,"corporation":false,"usgs":true,"family":"Weir","given":"J.","suffix":"Jr.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":167896,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hinrichs, E. N.","contributorId":98717,"corporation":false,"usgs":true,"family":"Hinrichs","given":"E. N.","affiliations":[],"preferred":false,"id":167895,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schroder, L.J.","contributorId":31767,"corporation":false,"usgs":true,"family":"Schroder","given":"L.J.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":167892,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":68594,"text":"ha526 - 1974 - Water resources of the Lower Minnesota River Watershed, south-central Minnesota","interactions":[],"lastModifiedDate":"2018-03-05T10:18:10","indexId":"ha526","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1974","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":318,"text":"Hydrologic Atlas","code":"HA","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"526","title":"Water resources of the Lower Minnesota River Watershed, south-central Minnesota","docAbstract":"The lower Minnesota River watershed, an area of 2,005 square miles, is fairly flat west of the Minnesota River, but rises to a hilly ridge along the east side of the watershed. Most of the area is covered by ground moraine cut deeply by the Minnesota River and less deeply by its tributaries. Surface drainage is toward the Minnesota River at the northeast corner of the watershed. The configuration of the water table, generally between 10 and 50 feet below land surface, is a subdued replica of the land surface. Shallow ground water moves generally toward local streams and then into the Minnesota River.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Mounds View, MN","doi":"10.3133/ha526","collaboration":"Prepared in cooperation with the Minnesota Department of Natural Resources Division of Waters, Soils, and Minerals","usgsCitation":"Anderson, H., Farrell, D., and Broussard, W., 1974, Water resources of the Lower Minnesota River Watershed, south-central Minnesota: U.S. Geological Survey Hydrologic Atlas 526, 3 Plates: 37.00 x 38.00 inches or smaller, https://doi.org/10.3133/ha526.","productDescription":"3 Plates: 37.00 x 38.00 inches or smaller","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science 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Cannon River watershed, southeastern Minnesota","indexId":"ofr738","publicationYear":"1973","noYear":false,"title":"Water resources of the Cannon River watershed, southeastern Minnesota"},"predicate":"SUPERSEDED_BY","object":{"id":68593,"text":"ha522 - 1974 - Water resources of the Cannon River watershed, southeastern Minnesota","indexId":"ha522","publicationYear":"1974","noYear":false,"title":"Water resources of the Cannon River watershed, southeastern Minnesota"},"id":1}],"lastModifiedDate":"2018-03-05T10:19:00","indexId":"ha522","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1974","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":318,"text":"Hydrologic Atlas","code":"HA","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"522","title":"Water resources of the Cannon River watershed, southeastern Minnesota","docAbstract":"The 1,462 square miles of land surface in the Cannon River watershed varies considerably from areas of low hills and plains to areas dominated by streams deeply incised into bedrock. Much of the south-central part of the area consists of a till plain that ranges in altitude from 1,100 to 1,200 feet above mean sea level. This plain is bordered by end moraines that form ridges on the east, west, and south. The eastern moraine marks the maximum eastward extend of the Wisconsin glacier, rising to more than 1,300 feet above sea level and forming ridges 50 to 100 feet above the till plain. In the northwest, the end moraine ridges are less obvious but extend directly north across the Cannon River valley.
\nThe end moraine ridges were cut by glacial melt water, which also deepened the pre-existing Cannon River valley. This deeply incised valley captures some of the streams that flow westward off the end moraines.
\nEast of the end moraines, pre-Wisconsin age glacial deposits are relatively thin and deeply weathered and eroded.
\nLard glacial melt-water valleys, around Cannon Falls and extending several miles to the west and south west, are characterized by broad valley floors underlain by outwash sand and gravel. The Cannon River flows out of the watershed and enters the Mississippi River at about 660 feet altitude.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Mounds View, MN","doi":"10.3133/ha522","collaboration":"Prepared in cooperation with the Minnesota Department of Natural Resources Division of Waters, Soils, and Minerals","usgsCitation":"Anderson, H.W., Farrell, D., Broussard, W., and Felsheim, P., 1974, Water resources of the Cannon River watershed, southeastern Minnesota: U.S. Geological Survey Hydrologic Atlas 522, 3 Plates: 41.00 x 34.00 inches or smaller, https://doi.org/10.3133/ha522.","productDescription":"3 Plates: 41.00 x 34.00 inches or smaller","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science 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In the East, South, Midwest, and along the seacoasts, most water problems are related to pollution rather than to water supply. West of about the 100th meridian, however, runoff is generally less than potential diversions, and energy industries must compete with other water users. Water demands for extraction of coal, oil shale, uranium, and oil and gas are modest, although large quantities of water are used in secondary recovery operations for oil. The only significant use of water for energy transportation, aside from in-stream navigation use, is for slurry lines. Substantial quantities of water are required in the retorting and the disposal of spent oil shale. The conversion of coal to synthetic gas or oil or to electric power and the generation of electric power with nuclear energy require large quantities of water, mostly for cooling. Withdrawals for cooling of thermal-electric plants is by far the largest category of water use in energy industry, totaling about 170 billion gallons (644 million m3) per day in 1970. Water availability will dictate the location and design of energy-conversion facilities, especially in water deficient areas of the West.
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It borders the Pacific Ocean on the west and the Santa Cruz Mountains on the east. The city of Watsonville is the largest center of population.
Seawater intrusion is occurring in the Pajaro Valley area from several miles north to several miles south of the mouth of the Pajaro River and in a small area about 4 miles (6.5 km) north of the river. The intrusion extends inland about 1 mile (1.6 km). Two water-bearing zones are being intruded--the depth intervals 100-200 feet (30-60 m) and 300-600 feet (90-180 m).
Ground-water pumpage averaged 49,100 acre-feet per year (60.6 hm3/yr) for the 9-year period 1963-71. The long-term ground-water yield of the Pajaro Valley is about 44,000 acre-feet per year (54.3 hm3/yr). Artificial recharge can be effected through modified streambeds at infiltration rates as high as 3 feet per day (0.9 m/d). Injection wells may have recharge capabilities of as much as 500 gallons per minute (1.9 m3/min).
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Mining has been actively carried on in the district since 1879. In the early days, silver was the chief product and was mined largely from Newman Hill southeast of the town of Rico. After 1900, the base metals, particularly lead and zinc, mined in other parts of the district, became the major products, though silver remained an important byproduct. The production of the Rico district from 1879 to 1968 has been about 83,000 ounces gold, 14,500,000 ounces silver, 5,600 tons copper, 84,000 tons lead, and 83,000 tons zinc.","language":"English","publisher":"United States Government Printing Office","publisherLocation":"Washington, D.C.","doi":"10.3133/pp723","usgsCitation":"McKnight, E.T., 1974, Geology and ore deposits of the Rico District, Colorado: U.S. Geological Survey Professional Paper 723, Report: iv, 100 p.; 3 Plates: 39.12 x 30.78 inches or smaller, https://doi.org/10.3133/pp723.","productDescription":"Report: iv, 100 p.; 3 Plates: 39.12 x 30.78 inches or smaller","costCenters":[],"links":[{"id":268345,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/0723/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":495917,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_5016.htm","linkFileType":{"id":5,"text":"html"}},{"id":268955,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0723/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":268956,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0723/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":337211,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0723/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":140786,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/0723/report-thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"Rico District","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -108.045,\n 37.7283\n ],\n [\n -108.045,\n 37.6703\n ],\n [\n -107.9869,\n 37.6703\n ],\n [\n -107.9869,\n 37.7283\n ],\n [\n -108.045,\n 37.7283\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db6843f5","contributors":{"authors":[{"text":"McKnight, Edwin Thor","contributorId":61812,"corporation":false,"usgs":true,"family":"McKnight","given":"Edwin","email":"","middleInitial":"Thor","affiliations":[],"preferred":false,"id":152237,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232660,"text":"70232660 - 1974 - Stratigraphic relationships within the Baraga Group of Precambrian age, central Upper Peninsula, Michigan","interactions":[],"lastModifiedDate":"2022-07-11T15:27:31.051675","indexId":"70232660","displayToPublicDate":"1975-01-01T10:24:50","publicationYear":"1974","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":"Stratigraphic relationships within the Baraga Group of Precambrian age, central Upper Peninsula, Michigan","docAbstract":"Details of the stratigraphic section in parts of northern Michigan have been known for many years, but correlation of units between geographically separated areas has been partly speculative. Mapping in the Witch Lake quadrangle has filled the gap between well-studied areas of the Marquette trough and parts of Iron and Dickinson Counties and has helped to correlate units in the Baraga Group (Precambrian X). Iron-formations are important marker beds; because of their magnetic properties they can be traced with certainty through poorly exposed areas. The magnetic Fence River Formation is now known to be stratigraphically beneath the Bijiki Iron-formation Member of the Michigamme Formation but may be equivalent to the Greenwood Iron-formation Member which crops out in parts of the Marquette trough to the east The Hemlock Formation (volcanic) underlies the Fence River and has been traced from near its type locality in Iron County to the south flank of the Marquette trough. These relationships provide the key to understanding the lateral facies changes responsible for the stratigraphic complexities of the Baraga Group.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Cannon, W., and Klasner, J.S., 1974, Stratigraphic relationships within the Baraga Group of Precambrian age, central Upper Peninsula, Michigan: Journal of Research of the U.S. Geological Survey, v. 3, no. 1, p. 47-51.","productDescription":"5 p.","startPage":"47","endPage":"51","costCenters":[],"links":[{"id":403385,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1975/vol3issue1/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":403386,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Michigan","otherGeospatial":"central Upper Peninsula","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.1982421875,\n 45.729191061299915\n ],\n [\n -86.66015624999999,\n 45.729191061299915\n ],\n [\n -86.66015624999999,\n 46.6268063953552\n ],\n [\n -88.1982421875,\n 46.6268063953552\n ],\n [\n -88.1982421875,\n 45.729191061299915\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"3","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Cannon, W.F. 0000-0002-2699-8118","orcid":"https://orcid.org/0000-0002-2699-8118","contributorId":70382,"corporation":false,"usgs":true,"family":"Cannon","given":"W.F.","affiliations":[],"preferred":false,"id":846204,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Klasner, John S.","contributorId":46591,"corporation":false,"usgs":true,"family":"Klasner","given":"John","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":846205,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70156496,"text":"70156496 - 1974 - Ultramafic rocks of the Eagle quadrangle, east-central Alaska","interactions":[],"lastModifiedDate":"2016-01-06T18:00:40","indexId":"70156496","displayToPublicDate":"1974-12-31T17:00:00","publicationYear":"1974","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":"Ultramafic rocks of the Eagle quadrangle, east-central Alaska","docAbstract":"More than 97 separate occurrences of ultramafic rocks, some of which are included in a north west-trending zone of alpine-type ultramafic rocks, have been mapped in the Eagle quadrangle, east-central Alaska. They are divided into three groups primarily on the basis of degree of serpentinization. Group I consists of lens-shaped bodies of serpentinite 1 m2 (10 ft2) to several 100 m2 (1,000 ft2) in area. Relict textures and presence of bastite indicate that the original rock was harzburgite and dunite. Group II consists of bodies composed of partially serpentinized harzburgite and dunite and includes the large Mount Sorenson and American Creek bodies. Group III is dominantly hornblendite and pyroxenite, probably intrusive and not genetically related to groups I and II. The authors believe that the ultramafic bodies of groups I and II are alpine-type peridotites and may include dismembered ophiolitc. The Tintina fault system could have provided a zone of weakness along which mantle material was tectonically emplaced or it may have been a plate boundary in late Paleozoic time. If it represents a plate boundary, the metamorphic terrane which lies between the Tintina and Denali fault systems would have to be allochthonous, perhaps originating as a northward-moving slice of continental crustal material. During the course of the movement as the two continental masses approached and perhaps collided, mantle peridotite and oceanic crustal material were squeezed up along the continental margin onto the continental slice.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Foster, H.L., and Keith, T.E., 1974, Ultramafic rocks of the Eagle quadrangle, east-central Alaska: Journal of Research of the U.S. Geological Survey, v. 2, no. 6, p. 657-669.","productDescription":"13 p.","startPage":"657","endPage":"669","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307199,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":307198,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue6/report.pdf","text":"Report","size":"16.19 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"}],"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 -144,\n 63\n ],\n [\n -144,\n 66\n ],\n [\n -141,\n 66\n ],\n [\n -141,\n 63\n ],\n [\n -144,\n 63\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"568e493ae4b0e7a44bc41ad8","contributors":{"authors":[{"text":"Foster, Helen L.","contributorId":56195,"corporation":false,"usgs":true,"family":"Foster","given":"Helen","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":569339,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Keith, Terry E.C.","contributorId":79099,"corporation":false,"usgs":true,"family":"Keith","given":"Terry","email":"","middleInitial":"E.C.","affiliations":[],"preferred":false,"id":569340,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70207247,"text":"70207247 - 1974 - Geodetic determination of strain at the Nevada Test Site following the Handley event","interactions":[],"lastModifiedDate":"2023-10-29T16:16:33.731847","indexId":"70207247","displayToPublicDate":"1974-12-13T10:30:05","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Geodetic determination of strain at the Nevada Test Site following the Handley event","docAbstract":"Repeated surveys of a trilateration network (aperture greater than 20 km) centered on ground zero for the HANDLEY event, a nuclear explosion at the Nevada Test Site with yield in excess of 1 megaton, suggest that the explosion induced an east-west extension of the network by more than 50 mm. In the year following the detonation, this deformation reversed such that the final configuration represented a small east-west contraction from the pre-HANDLEY state. In the subsequent 2-year period, only minor deformation was detected. Thus, the overall response of Pahute Mesa may be described as stable. The explosion-induced deformation is thought to be partly due to slip on faults driven by the large-amplitude seismic waves from the explosion. The mechanism of the postshot relaxation is not understood.
","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0640010115","usgsCitation":"Savage, J.C., Kinoshita, W.T., and Prescott, W., 1974, Geodetic determination of strain at the Nevada Test Site following the Handley event: Bulletin of the Seismological Society of America, v. 64, no. 1, p. 115-129, https://doi.org/10.1785/BSSA0640010115.","productDescription":"15 p.","startPage":"115","endPage":"129","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":370243,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Pahute Mesa","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.45,\n 37.00\n ],\n [\n -116.15,\n 37.00\n ],\n [\n -116.15,\n 37.30\n ],\n [\n -116.45,\n 37.30\n ],\n [\n -116.45,\n 37.00\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"64","issue":"1","noUsgsAuthors":false,"publicationDate":"1974-02-01","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":777443,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kinoshita, W. T.","contributorId":41494,"corporation":false,"usgs":true,"family":"Kinoshita","given":"W.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":777444,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Prescott, W.H.","contributorId":96337,"corporation":false,"usgs":true,"family":"Prescott","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":777445,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70246993,"text":"70246993 - 1974 - Radioactive waste storage in the arid zone","interactions":[],"lastModifiedDate":"2023-07-21T14:53:40.763029","indexId":"70246993","displayToPublicDate":"1974-10-01T09:50:15","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":7458,"text":"Eos Science News","active":true,"publicationSubtype":{"id":10}},"title":"Radioactive waste storage in the arid zone","docAbstract":"By the turn of the century, nuclear power may generate more than one-half of the electric energy, and about one-third of the total energy consumed in the United States [Thompson, 1971; Chapman et al., 1972]. By 2020, the total quantity of high-level radioactive wastes (HLW) generated as a byproduct of nuclear fuel reprocessing for such power generation may total about 900,000 m3 as liquid or 70,000 m3 as solid [Gera and Jacobs, 1972]; the radioactivity of long-lived nuclides in the HLW will total about 8.7×1010 Ci [Gera and Jacobs, 1972]. (High-level wastes are defined as wastes containing at least 1 Ci of radioactivity per liter of liquid, or 70 Ci/kg of solid [American Institute of Chemical Engineering, ANSI Standard N5.8-1967]. Wastes from chemical processing of irradiated nuclear fuels typically contain several hundred to several thousand curies per gallon [Fox, 1969].)
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/EO055i010p00884","usgsCitation":"Winograd, I.J., 1974, Radioactive waste storage in the arid zone: Eos Science News, v. 55, no. 10, p. 884-894, https://doi.org/10.1029/EO055i010p00884.","productDescription":"11 p.","startPage":"884","endPage":"894","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":419207,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"10","noUsgsAuthors":false,"publicationDate":"2011-06-03","publicationStatus":"PW","contributors":{"authors":[{"text":"Winograd, Isaac J. ijwinogr@usgs.gov","contributorId":4643,"corporation":false,"usgs":true,"family":"Winograd","given":"Isaac","email":"ijwinogr@usgs.gov","middleInitial":"J.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":878495,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":5220966,"text":"5220966 - 1974 - The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay","interactions":[],"lastModifiedDate":"2024-09-24T18:41:14.539718","indexId":"5220966","displayToPublicDate":"1974-09-04T00:00:00","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1228,"text":"Chesapeake Science","active":true,"publicationSubtype":{"id":10}},"title":"The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay","docAbstract":"An aerial survey in association with several intensive ground surveys yielded the first estimate of the size of the osprey (Pandion haliaetus carolinensis) nesting population in Chesapeake Bay. The 1973 population was estimated at 1,450 ± 30 pairs, of which 713 were on the western shore and 737 on the eastern shore. A small percentage of nonbreeders (possibly 2-5 percent) may be included in this estimate. Only 31.7 percent of the population was nesting in trees; the remaining birds utilized duck blinds (28.7 percent), channel markers (21.8 percent), and miscellaneous man-made structures (17.8 percent). The geographical distribution of nesting ospreys has quite likely changed during the last several decades as suitable artificial nesting sites have become more available. Furthermore, limited evidence suggests that birds nesting on the man-made sites were more successful than those nesting in trees. This study provides a basis for monitoring future changes in numbers and distribution.
","language":"English","publisher":"Springer Nature","doi":"10.2307/1351027","usgsCitation":"Henny, C.J., Smith, M.M., and Stotts, V.D., 1974, The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay: Chesapeake Science, v. 15, no. 3, p. 125-133, https://doi.org/10.2307/1351027.","productDescription":"9 p.","startPage":"125","endPage":"133","costCenters":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"links":[{"id":197283,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maryland, Virginia","otherGeospatial":"Chesapeake Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -76.69379591864708,\n 39.22907283054485\n ],\n [\n -76.69379591864708,\n 37.07508126963887\n ],\n [\n -75.69907244588549,\n 37.07508126963887\n ],\n [\n -75.69907244588549,\n 39.22907283054485\n ],\n [\n -76.69379591864708,\n 39.22907283054485\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"15","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683660","contributors":{"authors":[{"text":"Henny, Charles J. 0000-0001-7474-350X hennyc@usgs.gov","orcid":"https://orcid.org/0000-0001-7474-350X","contributorId":3461,"corporation":false,"usgs":true,"family":"Henny","given":"Charles","email":"hennyc@usgs.gov","middleInitial":"J.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":332775,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Morton M.","contributorId":34190,"corporation":false,"usgs":true,"family":"Smith","given":"Morton","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":332777,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stotts, Vernon D.","contributorId":86724,"corporation":false,"usgs":false,"family":"Stotts","given":"Vernon","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":332776,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70232501,"text":"70232501 - 1974 - Chert derived from magadiite in a lacustrine deposit near Rome, Malheur County, Oregon","interactions":[],"lastModifiedDate":"2022-07-05T16:55:19.981317","indexId":"70232501","displayToPublicDate":"1974-09-01T11:50:37","publicationYear":"1974","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":"Chert derived from magadiite in a lacustrine deposit near Rome, Malheur County, Oregon","docAbstract":"Nodules and thin beds of chert occur in the upper part of the informally named Rome beds, about 8 11 km southwest of Rome, Oreg. The chert is in green to gray mudstone, about 8 m beneath a conspicuous gray and yellow zeolitic tuff. The bedded chert contains molds of saline minerals and it grades southward and marginward into nodular chert. The nodular chert is of two varieties: relatively large lobate nodules that have greenish-brown interiors and abundant saline crystal molds, and relatively small lobate nodules that have gray interiors and a surface reticulation. The latter variety is the so-called snakeskin agate prized by lapidaries. Both nodular varieties characteristically have a thin white rind. The cherts are similar, if not identical, to cherts reported from Quaternary lacustrine deposits in eastern Africa and from Pleistocene to Jurassic lacustrine deposits in Wyoming. The Rome chert probably formed from a hydrous sodium silicate precursor such as magadiite during diagenesis. Magadiite is generally a primary precipitate from a highly alkaline lake which is capable of attaining a high concentration of silica in solution.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Sheppard, R.A., and Gude, A.J., 1974, Chert derived from magadiite in a lacustrine deposit near Rome, Malheur County, Oregon: Journal of Research of the U.S. Geological Survey, v. 2, no. 5, p. 625-630.","productDescription":"6 p.","startPage":"625","endPage":"630","costCenters":[],"links":[{"id":402986,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402985,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue5/report.pdf"}],"country":"United States","state":"Oregon","county":"Malheur County","city":"Rome","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.84896850585938,\n 42.70110902692345\n ],\n [\n -117.3278045654297,\n 42.70110902692345\n ],\n [\n -117.3278045654297,\n 42.93883121091811\n ],\n [\n -117.84896850585938,\n 42.93883121091811\n ],\n [\n -117.84896850585938,\n 42.70110902692345\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Sheppard, Richard A.","contributorId":41815,"corporation":false,"usgs":true,"family":"Sheppard","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":845705,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gude, Arthur J. 3rd 3rd","contributorId":34932,"corporation":false,"usgs":true,"family":"Gude","given":"Arthur","suffix":"3rd","email":"","middleInitial":"J. 3rd","affiliations":[],"preferred":false,"id":845706,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232497,"text":"70232497 - 1974 - Correlation of uppermost Precambrian and lower Cambrian strata from southern to east-central Nevada","interactions":[],"lastModifiedDate":"2022-07-05T16:30:47.9365","indexId":"70232497","displayToPublicDate":"1974-09-01T11:26:05","publicationYear":"1974","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":"Correlation of uppermost Precambrian and lower Cambrian strata from southern to east-central Nevada","docAbstract":"Study of exposed uppermost Precambrian and Lower Cambrian strata in southern and east-central Nevada and intervening areas indicates that the Johnnie Formation of southern Nevada and the McCoy Creek Group (restricted) are correlative. In detail, the uppermost units of both sequences, the Rainstorm Member of the Johnnie Formation and the Osceola Argillite (and the equivalent unit G) of the McCoy Creek Group, arc lithologically similar and also considered correlative. Both are characterized by pale-red or purplish-medium-gray siltstone with abundant bedding-surface markings, and both contain scarce to abundant amounts of evenly or lenlicularly laminated limestone or silty limestone. Both units are lithologically unique in their respective areas of occurrence, and both are known to be widely distributed. Several thousand feet of dominantly detrital rocks occur above the Johnnie Formation in southern Nevada and the McCoy Creek Group in east-central Nevada. These detrital rocks consist of quartzite and siltstone in southern Nevada (the Stirling Quartzite, Wood Canyon Formation, and Zabriskie Quartzite) and dominantly quartzite (the Prospect Mountain Quartzite) in cast-central Nevada. Study in areas between southern and east-central Nevada indicates that the Stirling, Wood Canyon, and Zabriskie Formations change facies to the north and become lithologically similar to one another. The Prospect Mountain Quartzite of east-central Nevada is believed to be the final result of the facies change. It is equivalent to the combined Stirling, Wood Canyon, and Zabriskie of southern Nevada.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Stewart, J., 1974, Correlation of uppermost Precambrian and lower Cambrian strata from southern to east-central Nevada: Journal of Research of the U.S. Geological Survey, v. 2, no. 5, p. 609-618.","productDescription":"10 p.","startPage":"609","endPage":"618","costCenters":[],"links":[{"id":402978,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402977,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue5/report.pdf"}],"country":"United States","state":"California, Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.477294921875,\n 38.048091067457236\n ],\n [\n -114.04907226562499,\n 38.048091067457236\n ],\n [\n -114.04907226562499,\n 40.33817045213394\n ],\n [\n -115.477294921875,\n 40.33817045213394\n ],\n [\n -115.477294921875,\n 38.048091067457236\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.707763671875,\n 35.53222622770337\n ],\n [\n -115.543212890625,\n 35.53222622770337\n ],\n [\n -115.543212890625,\n 36.86204269508728\n ],\n [\n -116.707763671875,\n 36.86204269508728\n ],\n [\n -116.707763671875,\n 35.53222622770337\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Stewart, John H.","contributorId":14383,"corporation":false,"usgs":true,"family":"Stewart","given":"John H.","affiliations":[],"preferred":false,"id":845699,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232495,"text":"70232495 - 1974 - Stratigraphy, structure, and geologic history of the Lunar Lake Caldera of northern Nye County, Nevada","interactions":[],"lastModifiedDate":"2022-07-05T16:14:21.919977","indexId":"70232495","displayToPublicDate":"1974-09-01T11:04:39","publicationYear":"1974","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":"Stratigraphy, structure, and geologic history of the Lunar Lake Caldera of northern Nye County, Nevada","docAbstract":"The Lunar Lake caldera is in northern Nye County, Nev., about 70 mi (110 km) east-northeast of Tonopah. It is the youngest caldera in the central Nevada multiple-caldron complex and the source of the tuff of Lunar Cuesta, a multiple-flow simple cooling unit of quarts latitic welded tuff that is about 25 m.y. old. The tuff was distributed over an area of nearly 3,000 mi2 (7,770 km2 ) and has a volume of approximately 90 mi3 (375 km3 ). The Lunar Lake caldera is the site of the Lunar Crater basalt field which contains basalts of Pleistocene and probably Holocene age. These basalts were fed from northeast-trending fissures that had much earlier served as vents for ash-flow tuffs and lavas, possibly including the tuff of Lunar Cuesta.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Ekren, E.B., Quinlivan, W.D., Snyder, R., and Kleinhampl, F.J., 1974, Stratigraphy, structure, and geologic history of the Lunar Lake Caldera of northern Nye County, Nevada: Journal of Research of the U.S. Geological Survey, v. 2, no. 5, p. 599-608.","productDescription":"10 p.","startPage":"599","endPage":"608","costCenters":[],"links":[{"id":402975,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402973,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue5/report.pdf"}],"country":"United States","state":"Nevada","county":"Nye County","otherGeospatial":"Lunar Lake caldera","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.99708557128905,\n 38.36534867623901\n ],\n [\n -115.88310241699219,\n 38.43153880264903\n ],\n [\n -115.85494995117188,\n 38.486919673341646\n ],\n [\n -115.89271545410155,\n 38.556220194663595\n ],\n [\n -116.00875854492188,\n 38.60989560714296\n ],\n [\n -116.14677429199219,\n 38.58252615935333\n ],\n [\n -116.16119384765625,\n 38.501967316378895\n ],\n [\n -116.1536407470703,\n 38.425621828142184\n ],\n [\n -116.103515625,\n 38.38795699631396\n ],\n [\n -115.99708557128905,\n 38.36534867623901\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ekren, E. B.","contributorId":14371,"corporation":false,"usgs":true,"family":"Ekren","given":"E.","middleInitial":"B.","affiliations":[],"preferred":false,"id":845693,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Quinlivan, W. D.","contributorId":14398,"corporation":false,"usgs":true,"family":"Quinlivan","given":"W.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":845694,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Snyder, R.P.","contributorId":9647,"corporation":false,"usgs":true,"family":"Snyder","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":845695,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kleinhampl, F. J.","contributorId":64650,"corporation":false,"usgs":true,"family":"Kleinhampl","given":"F.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":845696,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1001619,"text":"1001619 - 1974 - Foods of breeding pintails in North Dakota","interactions":[],"lastModifiedDate":"2025-02-24T17:14:22.481574","indexId":"1001619","displayToPublicDate":"1974-07-05T00:00:00","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Foods of breeding pintails in North Dakota","docAbstract":"Food habits of breeding pintails (Anas acuta) were studied relative to sex, land use, and reproductive condition during the spring and summer of 1969, 1970, and 1971 in eastern North Dakota. Hens and drakes, respectively, consumed 79.2 percent and 30.0 percent animal matter on nontilled wetlands and consumed 16.6 percent and 1.1 percent animal matter on tilled wetlands. Aquatic dipterans (primarily larval forms), snails, fairy shrimp, and earthworms accounted for 71 percent of the diet of hens on nontilled wetlands, while barnyard grass (Echinochloa crusgalli) seeds formed 71 percent of the diet of hens on tilled wetlands. Cereal grain seeds formed 84 percent of the diet of 10 hens feeding on cropland. The diet of hens was influenced by reproductive status. Animal foods were predominant during the laying period (77.1 percent) but were less important in the postlaying diet (28.9 percent). Invertebrates formed 83.9 percent of the diet of renesting hens, 61.0 percent were dipteran larvae and snails. High consumption of animal foods during egg formation presumably is related to invertebrates being superior to plants in providing certain nutrients required for production of viable eggs. Research findings suggest that food requirements of prairie-nesting pintails can be met most effectively by providing pairs access to shallow, nontilled wetland habitat subject to periodic drawdowns.
","language":"English","publisher":"Wiley","doi":"10.2307/3800870","usgsCitation":"Krapu, G., 1974, Foods of breeding pintails in North Dakota: Journal of Wildlife Management, v. 38, no. 3, p. 408-417, https://doi.org/10.2307/3800870.","productDescription":"10 p.","startPage":"408","endPage":"417","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":134349,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North 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Dakota\",\"nation\":\"USA \"}}]}","volume":"38","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49d6e4b07f02db5de4ee","contributors":{"authors":[{"text":"Krapu, Gary L.","contributorId":56994,"corporation":false,"usgs":true,"family":"Krapu","given":"Gary L.","affiliations":[],"preferred":false,"id":311361,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232461,"text":"70232461 - 1974 - Palynology and stratigraphy of Cretaceous strata in Long Island, New York, and Block Island, Rhode Island","interactions":[],"lastModifiedDate":"2022-07-01T22:32:20.380348","indexId":"70232461","displayToPublicDate":"1974-07-01T17:23:34","publicationYear":"1974","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":"Palynology and stratigraphy of Cretaceous strata in Long Island, New York, and Block Island, Rhode Island","docAbstract":"Palynologic analysis of core samples from Fire Island well, S21,091T, in southern Long Island and of surface samples from Garvies Point in northern Long Island and from eastern Block Island indicates that the Cretaceous of this region includes Raritan, Magothy, Matawan, and Monmouth (as previously defined) strata, and ranges in age from Cenomanian to Maestrichtian, in agreement with recent studies in New Jersey. In this study, the oldest Cretaceous, which is equivalent to the Woodbridge day Member of the Raritan Formation of New Jersey, occurs just above sea level at Garvies Point, Glen Cove, and in the Port Washington sand pits in northwestern Long Island, whereas sediments from near the base of the Fire Island well arc correlated with the South Amboy Fire Clay Member. The Magothy and Matawan combined in Long Island are about 1,500 ft (457 m) thick, whereas in New Jersey both units rarely exceed a thickness of 500 ft (152 m). Outcropping Cretaceous sediments in Block Island are equivalent to the South Amboy Fire Clay Member rather than the Magothy, as indicated in prior studies. Palynologic zonation of the Late Cretaceous is tentatively extended to Magothy and younger strata on the basis of the appearance and proliferation of the more advanced, angiosperm pollen forms. This study also provides a basis for extending the zonation and hence the correlation to the sediments of the Continental Shelf.
","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Sirkin, L.A., 1974, Palynology and stratigraphy of Cretaceous strata in Long Island, New York, and Block Island, Rhode Island: Journal of Research of the U.S. Geological Survey, v. 2, no. 4, p. 431-440.","productDescription":"10 p.","startPage":"431","endPage":"440","costCenters":[],"links":[{"id":402910,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402909,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue4/report.pdf","size":"19104 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"New York, Rhode Island","otherGeospatial":"Block Island, Long Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -74.036865234375,\n 40.59727063442024\n ],\n [\n -73.948974609375,\n 40.53258931069554\n ],\n [\n -73.7677001953125,\n 40.57849862511043\n ],\n [\n -73.56994628906249,\n 40.56806745430726\n ],\n [\n -73.32275390625,\n 40.62437645591559\n ],\n [\n -73.2843017578125,\n 40.61186744303007\n ],\n [\n -73.10577392578125,\n 40.643135583312805\n ],\n [\n -72.7679443359375,\n 40.751418432997454\n ],\n [\n -72.3065185546875,\n 40.89482963261175\n ],\n [\n -71.87805175781249,\n 41.03793062246529\n ],\n [\n -71.83959960937499,\n 41.08349176750823\n ],\n [\n -71.91375732421875,\n 41.10005163093046\n ],\n [\n -72.11151123046875,\n 41.017210578228436\n ],\n [\n -72.1417236328125,\n 41.075210270566636\n ],\n [\n -72.2021484375,\n 41.04828819952275\n ],\n [\n -72.25433349609375,\n 41.075210270566636\n ],\n [\n -72.31201171875,\n 41.11660732012896\n ],\n [\n -72.2296142578125,\n 41.14143302653628\n ],\n [\n -72.2515869140625,\n 41.178653972331674\n ],\n [\n -72.34771728515625,\n 41.1455697310095\n ],\n [\n -72.5262451171875,\n 41.04621681452063\n ],\n [\n -72.6141357421875,\n 40.994410999439516\n ],\n [\n -72.6690673828125,\n 40.990264773996884\n ],\n [\n -72.98492431640625,\n 40.97989806962013\n ],\n [\n -73.135986328125,\n 40.992337919312305\n ],\n [\n -73.2183837890625,\n 40.91766362458114\n ],\n [\n -73.38043212890625,\n 40.967455873296714\n ],\n [\n -73.575439453125,\n 40.93011520598305\n ],\n [\n -73.73199462890625,\n 40.871987756697415\n ],\n [\n -73.7841796875,\n 40.80965166748853\n ],\n [\n -73.93798828125,\n 40.7909394098518\n ],\n [\n -74.05334472656249,\n 40.64938745451835\n ],\n [\n -74.036865234375,\n 40.59727063442024\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -71.6033935546875,\n 41.143501411390766\n ],\n [\n -71.53884887695312,\n 41.15384235711447\n ],\n [\n -71.55120849609375,\n 41.18072118284585\n ],\n [\n -71.55670166015625,\n 41.187955905820026\n ],\n [\n -71.54708862304688,\n 41.22205169039092\n ],\n [\n -71.5814208984375,\n 41.237543901082574\n ],\n [\n -71.6033935546875,\n 41.192089674364105\n ],\n [\n -71.62399291992188,\n 41.17762034260712\n ],\n [\n -71.62673950195312,\n 41.15384235711447\n ],\n [\n -71.6033935546875,\n 41.143501411390766\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Sirkin, Leslie A.","contributorId":19207,"corporation":false,"usgs":true,"family":"Sirkin","given":"Leslie","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":845590,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232458,"text":"70232458 - 1974 - Stratigraphic evidence on the age of the Roberts Mountains thrust, Eureka and White Pine Counties, Nevada","interactions":[],"lastModifiedDate":"2022-07-01T21:59:10.52782","indexId":"70232458","displayToPublicDate":"1974-07-01T16:51:26","publicationYear":"1974","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":"Stratigraphic evidence on the age of the Roberts Mountains thrust, Eureka and White Pine Counties, Nevada","docAbstract":"Several stratigraphic discontinuities in Devonian and Mississippian sedimentary sequences in folded thrust plates east of the Roberts Mountains thrust of central Nevada indicate that the thrust was sporadically active during this interval. From estimates for displacement and time involved for the thrust, the average rate of movement was 1 cm/5 yr, which is comparable to current concepts of the rate of orogenic movements.
A further extrapolation of this rate to the longer period during which orogenies have been recognized in the Great Basin suggests total horizontal shortening of 400 to 500 mi (640-800 km).
","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Nolan, T., 1974, Stratigraphic evidence on the age of the Roberts Mountains thrust, Eureka and White Pine Counties, Nevada: Journal of Research of the U.S. Geological Survey, v. 2, no. 4.","productDescription":"6 p.","startPage":"416","costCenters":[],"links":[{"id":402904,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402903,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue4/report.pdf","size":"19104 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Nevada","county":"Eureka County, White Pine County","otherGeospatial":"Roberts Mountains","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.10626220703124,\n 38.997841307500714\n ],\n [\n -115.65582275390624,\n 38.997841307500714\n ],\n [\n -115.65582275390624,\n 39.93501296038254\n ],\n [\n -116.10626220703124,\n 39.93501296038254\n ],\n [\n -116.10626220703124,\n 38.997841307500714\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"4","edition":"411","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Nolan, T. B.","contributorId":118355,"corporation":false,"usgs":true,"family":"Nolan","given":"T. B.","affiliations":[],"preferred":false,"id":845586,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70210568,"text":"70210568 - 1974 - Nature of the angular unconformity between the Paleozoic metasedimentary rocks and the mesozoic metavolcanic rocks in the eastern Sierra Nevada, California","interactions":[],"lastModifiedDate":"2020-06-09T18:51:03.61903","indexId":"70210568","displayToPublicDate":"1974-06-09T13:35:47","publicationYear":"1974","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":"Nature of the angular unconformity between the Paleozoic metasedimentary rocks and the mesozoic metavolcanic rocks in the eastern Sierra Nevada, California","docAbstract":"Two major wall-rock sequences, the Paleozoic metasedimentary rocks and the Mesozoic metavolcanic rocks, in the eastern Sierra Nevada, California, are separated by an angular unconformity rather than by a fault as has been proposed by other investigators. The unconformity is parallel to formation contacts in the younger metavolcanic rocks and crosscuts formation contacts in the older metasedimentary rocks. Locally, basal conglomerate with pebbles derived from the older metasedimentary rocks occurs just above the unconformity. The older metasedimentary rocks consist mostly of former marl, chert, and mudstone; they contain three generations of superposed structures. The younger metavolcanic rocks consist mostly of former andesite flows, tuff, and graywacke; these contain only the younger two generations of superposed structures. The sinuous trace of the unconformity is primarily the result of superposed deformations of regional scale which occur in most roof pendants of the eastern Sierra Nevada.
","language":"English","publisher":"GSA","doi":"10.1130/0016-7606(1974)85<571:NOTAUB>2.0.CO;2","usgsCitation":"Brook, C., Nokleberg, W.J., and Kistler, R., 1974, Nature of the angular unconformity between the Paleozoic metasedimentary rocks and the mesozoic metavolcanic rocks in the eastern Sierra Nevada, California: GSA Bulletin, v. 85, no. 4, p. 571-576, https://doi.org/10.1130/0016-7606(1974)85<571:NOTAUB>2.0.CO;2.","productDescription":"6 p.","startPage":"571","endPage":"576","costCenters":[],"links":[{"id":375475,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Eastern Sierra Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -119.68505859375,\n 37.64903402157866\n ],\n [\n -118.43261718749999,\n 37.64903402157866\n ],\n [\n -118.43261718749999,\n 38.272688535980976\n ],\n [\n -119.68505859375,\n 38.272688535980976\n ],\n [\n -119.68505859375,\n 37.64903402157866\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"85","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Brook, C.A.","contributorId":82699,"corporation":false,"usgs":true,"family":"Brook","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":790631,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nokleberg, Warren J. 0000-0002-1574-8869 wnokleberg@usgs.gov","orcid":"https://orcid.org/0000-0002-1574-8869","contributorId":2077,"corporation":false,"usgs":true,"family":"Nokleberg","given":"Warren","email":"wnokleberg@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":790632,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kistler, Ronald W.","contributorId":56969,"corporation":false,"usgs":true,"family":"Kistler","given":"Ronald W.","affiliations":[],"preferred":false,"id":790633,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70210119,"text":"70210119 - 1974 - K-Ar Age Relations of Granodiorite Emplacement and Tungsten and Gold Mineralization near the Getchell Mine, Humboldt County, Nevada","interactions":[],"lastModifiedDate":"2020-05-14T18:04:14.390316","indexId":"70210119","displayToPublicDate":"1974-05-14T12:41:53","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"K-Ar Age Relations of Granodiorite Emplacement and Tungsten and Gold Mineralization near the Getchell Mine, Humboldt County, Nevada","docAbstract":"A granodiorite stock intrudes complexly folded and thrust-faulted Paleozoic sedimentary rocks in the Osgood Mountains of eastern Humboldt County, Nevada. Within the metamorphic aureole surrounding the pluton, the sedimentary rocks are converted to cordierite hornfels and marble; tungsten-bearing tactites developed along the contacts of the granodiorite. Cutting the granodiorite and sedimentary rocks is the Getchell fault, along which the disseminated gold ore bodies of the Getchell mine are localized. K-Ar ages of the granodiorite, andesite porphyry, tungsten-bearing tactites, and altered granodiorite from the Getchell mine indicate that emplacement, alteration, and mineralization are all part of a magmatic-thermal episode which took place approximately 90 m.y. ago.
","language":"English","publisher":"SPEM","doi":"10.2113/gsecongeo.69.5.646","usgsCitation":"Silberman, M.L., Berger, B.R., and Koski, R.A., 1974, K-Ar Age Relations of Granodiorite Emplacement and Tungsten and Gold Mineralization near the Getchell Mine, Humboldt County, Nevada: Economic Geology, v. 69, p. 646-656, https://doi.org/10.2113/gsecongeo.69.5.646.","productDescription":"11 p.","startPage":"646","endPage":"656","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":374836,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","county":"Humboldt","otherGeospatial":"Osgood Mountains","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.92724609375,\n 40.094882122321145\n ],\n [\n -117.103271484375,\n 40.094882122321145\n ],\n [\n -117.103271484375,\n 41.393294288784865\n ],\n [\n -117.92724609375,\n 41.393294288784865\n ],\n [\n -117.92724609375,\n 40.094882122321145\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"69","noUsgsAuthors":false,"publicationDate":"1974-08-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Silberman, Miles L.","contributorId":23947,"corporation":false,"usgs":true,"family":"Silberman","given":"Miles","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":789195,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Berger, B. R.","contributorId":77914,"corporation":false,"usgs":true,"family":"Berger","given":"B.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":789196,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koski, Randolph A. rkoski@usgs.gov","contributorId":2949,"corporation":false,"usgs":true,"family":"Koski","given":"Randolph","email":"rkoski@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":789197,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70232453,"text":"70232453 - 1974 - The soil creep-curved tree fallacy","interactions":[],"lastModifiedDate":"2022-07-01T16:53:26.396743","indexId":"70232453","displayToPublicDate":"1974-05-01T11:51:48","publicationYear":"1974","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":"The soil creep-curved tree fallacy","docAbstract":"No evidence has been found in eastern deciduous forests to substantiate statements that curved tree trunks, downslope tilted tree trunks, and upslope trailing tree root systems are the result of soil creep. Curvature and tilting of trunks are described as geotropic and phototropic responses to physical and physiological conditions unrelated to soil creep. The occurrence of upslope trailing of roots has not been demonstrated.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Phipps, R.L., 1974, The soil creep-curved tree fallacy: Journal of Research of the U.S. Geological Survey, v. 2, no. 3, p. 371-377.","productDescription":"7 p.","startPage":"371","endPage":"377","costCenters":[],"links":[{"id":402863,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402862,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue3/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"volume":"2","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Phipps, Richard L.","contributorId":52122,"corporation":false,"usgs":true,"family":"Phipps","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":845577,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232449,"text":"70232449 - 1974 - Chemical variations across the Alaska-Aleutian Range batholith","interactions":[],"lastModifiedDate":"2022-07-01T16:30:09.738524","indexId":"70232449","displayToPublicDate":"1974-05-01T11:19:22","publicationYear":"1974","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":"Chemical variations across the Alaska-Aleutian Range batholith","docAbstract":"A study of 79 chemical analyses of plutonic rocks in the northern part of the Alaska-Aleutian Range batholith shows that K2O and SiO2 in Late Cretaceous and Tertiary rocks decrease toward the Pacific margin and that Al2O3 and CaO increase. Plots for Fe2O3, FeO, MgO, and TiO2 suggest a possible increase toward the Pacific margin; Na2O, H2O+, and MnO show no significant trends across the batholith. Oxide trends for groups of plutons in the western and eastern parts of the batholith in general are opposite that of the groups combined. For the Jurassic plutonic rocks, K2O may decrease toward the Pacific margin; other oxides show considerable scatter, and meaningful trends are not readily apparent. The oxide trends across the batholith are similar to trends across the central Sierra Nevada batholith of California, with the exception of SiO2 and A12O3, which show no significant changes. In the Coast Range batholith of British Columbia, potassium also increases away from the Pacific margin. The increase in K2O toward the continent in the Alaska-Aleutian Range batholith is similar to that found across Quaternary volcanic island arcs, where K2O content increases directly with increasing depth to inclined seismic zones. This increase suggests that generation of magma may have taken place along, or above, a paleoseismic zone. Geologic evidence supports such a model for the Jurassic plutonic rocks, which represent the roots of an early Mesozoic magmatic arc that probably formed above a descending oceanic plate. However, the hypothesis that magma for Late Cretaceous and Tertiary plutonic rocks was generated along seismic zones does not fit available geologic evidence, and an anatectic model cannot be ruled out.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Reed, B.L., and Lanphere, M.A., 1974, Chemical variations across the Alaska-Aleutian Range batholith: Journal of Research of the U.S. Geological Survey, v. 2, no. 3, p. 343-352.","productDescription":"10 p.","startPage":"343","endPage":"352","costCenters":[],"links":[{"id":402855,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402854,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue3/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"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 -156.6650390625,\n 57.37393841871411\n ],\n [\n -148.3154296875,\n 57.37393841871411\n ],\n [\n -148.3154296875,\n 62.63376960786813\n ],\n [\n -156.6650390625,\n 62.63376960786813\n ],\n [\n -156.6650390625,\n 57.37393841871411\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Reed, Bruce L.","contributorId":19928,"corporation":false,"usgs":true,"family":"Reed","given":"Bruce","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":845568,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lanphere, Marvin A. alder@usgs.gov","contributorId":2696,"corporation":false,"usgs":true,"family":"Lanphere","given":"Marvin","email":"alder@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":845569,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232448,"text":"70232448 - 1974 - Thallium-bearing orpiment, Carlin gold deposit, Nevada","interactions":[],"lastModifiedDate":"2022-07-01T16:18:27.558758","indexId":"70232448","displayToPublicDate":"1974-05-01T11:07:59","publicationYear":"1974","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":"Thallium-bearing orpiment, Carlin gold deposit, Nevada","docAbstract":"A variety of orpiment, As2S3 , containing a significant amount of thallium has been identified in the unoxidized East ore body of the Carlin gold deposit. The mineral occurs in small veinlets with barite, calcite, quartz, and realgar.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Radtke, A.S., Taylor, C.M., Dickson, F.W., and Heropoulos, C., 1974, Thallium-bearing orpiment, Carlin gold deposit, Nevada: Journal of Research of the U.S. Geological Survey, v. 2, no. 3, p. 341-342.","productDescription":"2 p.","startPage":"341","endPage":"342","costCenters":[],"links":[{"id":402853,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402852,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue3/report.pdf"}],"country":"United States","state":"Nevada","county":"Eureka County","otherGeospatial":"Carlin gold deposit","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.55,\n 40.75\n ],\n [\n -116.2,\n 40.75\n ],\n [\n -116.2,\n 41\n ],\n [\n -116.55,\n 41\n ],\n [\n -116.55,\n 40.75\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Radtke, Arthur S.","contributorId":63795,"corporation":false,"usgs":true,"family":"Radtke","given":"Arthur","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":845564,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taylor, Charles M.","contributorId":150037,"corporation":false,"usgs":false,"family":"Taylor","given":"Charles","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":845565,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dickson, F. W.","contributorId":292713,"corporation":false,"usgs":false,"family":"Dickson","given":"F.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":845566,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heropoulos, Chris","contributorId":56214,"corporation":false,"usgs":true,"family":"Heropoulos","given":"Chris","email":"","affiliations":[],"preferred":false,"id":845567,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70232444,"text":"70232444 - 1974 - The Border Ranges Fault in south-central Alaska","interactions":[],"lastModifiedDate":"2022-07-01T15:52:08.4651","indexId":"70232444","displayToPublicDate":"1974-05-01T10:48:53","publicationYear":"1974","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":"The Border Ranges Fault in south-central Alaska","docAbstract":"The Border Ranges fault, a major fault of southern Alaska, can be traced for more than 1,000 km arcuately eastward from Kodiak Island to the St. Elias Mountains. Throughout its extent, the fault juxtaposes upper Paleozoic and lower Mesozoic rocks on the north against upper Mesozoic and Tertiary rocks. This report describes the Border Ranges fault and its geologic setting along an approximately 245-km-long segment in the McCarthy and Valdez quadrangles. It also summarizes information relevant to other parts of the fault and discusses its significance and tectonic implications. In the McCarthy and Valdez quadrangles the fault strikes between N. 60° W. and west. Its dips change from vertical and steeply northward in its eastern part to between 20° and 60° north throughout most of the Valdez quadrangle and reflect the transition from a high-angle reverse fault to a northward-dipping thrust. The Border Ranges fault is interpreted to mark a plate boundary that developed near the close of the Mesozoic or in the early Tertiary.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"MacKevett, E., and Plafker, G., 1974, The Border Ranges Fault in south-central Alaska: Journal of Research of the U.S. Geological Survey, v. 2, no. 3, p. 323-329.","productDescription":"7 p.","startPage":"323","endPage":"329","costCenters":[],"links":[{"id":402842,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402841,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue3/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Border Ranges Fault","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -149.94140625,\n 59.734253447591364\n ],\n [\n -141.96533203125,\n 59.734253447591364\n ],\n [\n -141.96533203125,\n 61.91827102335593\n ],\n [\n -149.94140625,\n 61.91827102335593\n ],\n [\n -149.94140625,\n 59.734253447591364\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"MacKevett, E. M.","contributorId":32910,"corporation":false,"usgs":true,"family":"MacKevett","given":"E. M.","affiliations":[],"preferred":false,"id":845557,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Plafker, George","contributorId":3920,"corporation":false,"usgs":false,"family":"Plafker","given":"George","email":"","affiliations":[],"preferred":false,"id":845558,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232443,"text":"70232443 - 1974 - Generalized geology and structure of the Winkelman 15-minute quadrangle and vicinity, Pinal and Gila Counties, Arizona","interactions":[],"lastModifiedDate":"2022-07-01T15:47:46.674362","indexId":"70232443","displayToPublicDate":"1974-05-01T10:43:14","publicationYear":"1974","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":"Generalized geology and structure of the Winkelman 15-minute quadrangle and vicinity, Pinal and Gila Counties, Arizona","docAbstract":"A. northwest-trending belt of steeply east-dipping Precambrian and Paleozoic sedimentary rocks extends across the Winkelman 15-minute quadrangle and separates areas of contrasting structures. To the southwest for 60 mi is an expanse of Precambrian basement, largely granite; to the northeast the Precambrian and Paleozoic sedimentary rocks are gently tilted and intricately faulted. The structure within the Winkelman 15-minute quadrangle is interpreted as a monocline separated into en echelon segments by strike-slip and normal faults. Other monoclines lie-to the north and northwest. Most of the tilting that formed the monoclines occurred after deposition of the early(?) Miocene San Manuel Formation. Structural features that repeat the Precambrian and Paleozoic sedimentary rocks within the area and that resemble high-angle faults are believed to have formed as low-angle thrusts, tilted to their present nearly vertical position during development of the monoclines. Structural features that are younger than the monoclines include low-angle gravity slide surfaces which are older than the high-angle normal faults that formed the basin-and-range topography on which the Pliocene sediments were deposited.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Krieger, M.H., 1974, Generalized geology and structure of the Winkelman 15-minute quadrangle and vicinity, Pinal and Gila Counties, Arizona: Journal of Research of the U.S. Geological Survey, v. 2, no. 3, p. 311-321.","productDescription":"11 p.","startPage":"311","endPage":"321","costCenters":[],"links":[{"id":402840,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402839,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1974/vol2issue3/report.pdf"}],"country":"United States","state":"Arizona","county":"Gila County, Pinal County","otherGeospatial":"Winkelman 15-minute quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111,\n 32.45\n ],\n [\n -110.45,\n 32.45\n ],\n [\n -110.45,\n 33\n ],\n [\n -111,\n 33\n ],\n [\n -111,\n 32.45\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Krieger, M. H.","contributorId":78017,"corporation":false,"usgs":true,"family":"Krieger","given":"M.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":845556,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}