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","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr92350","usgsCitation":"Yehle, L.A., Schmoll, H.R., and Dobrovolny, E., 1992, Surficial geologic map of the Anchorage A-8 SE quadrangle, Alaska: U.S. Geological Survey Open-File Report 92-350, Report: i, 33 p.; 2 Plates: 18.39 × 27.65 inches and 20.64 × 15.49 inches, https://doi.org/10.3133/ofr92350.","productDescription":"Report: i, 33 p.; 2 Plates: 18.39 × 27.65 inches and 20.64 × 15.49 inches","costCenters":[],"links":[{"id":51069,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1992/0350/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":51068,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1992/0350/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":51067,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1992/0350/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":154257,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1992/0350/report-thumb.jpg"},{"id":397629,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_19150.htm"}],"scale":"25000","country":"United States","state":"Alaska","otherGeospatial":"Anchorage A-8 SE quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -149.812,\n 61\n ],\n [\n -149.625,\n 61\n ],\n [\n -149.625,\n 61.125\n ],\n [\n -149.812,\n 61.125\n ],\n [\n -149.812,\n 61\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db688f30","contributors":{"authors":[{"text":"Yehle, Lynn A. yehle@usgs.gov","contributorId":3794,"corporation":false,"usgs":true,"family":"Yehle","given":"Lynn","email":"yehle@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":184539,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmoll, Henry R. schmoll@usgs.gov","contributorId":3793,"corporation":false,"usgs":true,"family":"Schmoll","given":"Henry","email":"schmoll@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":184538,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dobrovolny, Ernest","contributorId":45288,"corporation":false,"usgs":true,"family":"Dobrovolny","given":"Ernest","affiliations":[],"preferred":false,"id":184540,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":3006,"text":"wsp2382 - 1992 - Limnology of Big Lake, south-central Alaska, 1983-84","interactions":[],"lastModifiedDate":"2012-02-02T00:05:37","indexId":"wsp2382","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2382","title":"Limnology of Big Lake, south-central Alaska, 1983-84","docAbstract":"The limnological characteristics and trophic state of Big Lake in south-central Alaska were determined from the results of an intensive study during 1983-84. The study was begun in response to concern over the potential for eutrophication of Big Lake, which has experienced substantial residential development and recreational use because of its proximity to Anchorage. \r\n\r\nThe east and west basins of the 1,213 square-hectometer lake were each visited 36 times during the 2-year study to obtain a wide variety of physical, chemical, and biological data. During 1984, an estimate was made of the lake's annual primary production. Big Lake was classified as oligotrophic on the basis of its annual mean values for total phosphorus (9.5 micrograms per liter), total nitrogen (209 micrograms per liter), chlorophyll-a (2.5 micrograms per liter), secchi-disc transparency (6.3 meters), and its mean daily integral primary production of 81.1 milligrams of carbon fixed per square meter. The lake was, however, uncharacteristic of oligotrophic lakes in that a severe dissolved-oxygen deficit developed within the hypolimnion during summer stratification and under winter ice cover. The summer dissolved-oxygen deficit resulted from the combination of strong and persistent thermal stratification, which developed within 1 week of the melting of the lake's ice cover in May, and the failure of the spring circulation to fully reaerate the hypolimnion. The autumn circulation did reaerate the entire water column, but the ensuing 6 months of ice and snow cover prevented atmospheric reaeration of the water column and led to development of the winter dissolved-oxygen deficit. \r\n\r\nThe anoxic conditions that eventually developed near the lake bottom allowed the release of nutrients from the bottom sediments and facilitated ammonification reactions. These processes yielded hypolimnetic concentrations of nitrogen and phosphorus compounds, which were much larger than the oligotrophic concentrations measured within the epilimnion. An analysis of nitrogen-to-phosphorus ratios showed that nitrogen was the nutrient most likely to limit phytoplankton growth during the summer. \r\n\r\nAlthough mean chlorophyll-a concentrations were at oligotrophic levels, concentrations did peak at 46.5 micrograms per liter in the east basin. During each year and in both basins, the peak chlorophyll-a concentrations were measured within the hypolimnion because the euphotic zone commonly was deeper than the epilimnion during the summer. \r\n\r\nThe annual integral primary production of Big Lake in 1984 was 29.6 grams of carbon fixed per square meter with about 90 percent of that produced during May through October. During this time period, the lake received 76 percent of its annual input of solar irradiance. Monthly integral primary production, in milligrams of carbon fixed per square meter, ranged from 1.5 in January to 7,050 in July. When compared with the range of annual integral primary production measured in 50 International Biological Program lakes throughout the world, Big Lake had a low value of annual integral primary production. \r\n\r\nThe results of this study lend credence to the concerns about the potential eutrophication of Big Lake. Increases in the supply of oxygen-demanding materials to Big Lake could worsen the hypolimnetic dissolved-oxygen deficit and possibly shift the lake's trophic state toward mesotrophy or eutrophy.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wsp2382","usgsCitation":"Woods, P.F., 1992, Limnology of Big Lake, south-central Alaska, 1983-84: U.S. Geological Survey Water Supply Paper 2382, iv, 108 p. :ill. ;28 cm., https://doi.org/10.3133/wsp2382.","productDescription":"iv, 108 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":139414,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2382/report-thumb.jpg"},{"id":29800,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2382/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b16e4b07f02db6a5189","contributors":{"authors":[{"text":"Woods, Paul F.","contributorId":82273,"corporation":false,"usgs":true,"family":"Woods","given":"Paul","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":146137,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":16894,"text":"ofr92379A - 1992 - Analytical results of stream-sediment sample data from the Bethel and southern part of the Russian Mission 1 degree by 3 degrees quadrangles, Southwest Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:07:17","indexId":"ofr92379A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1992","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":"92-379","chapter":"A","title":"Analytical results of stream-sediment sample data from the Bethel and southern part of the Russian Mission 1 degree by 3 degrees quadrangles, Southwest Alaska","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey,","doi":"10.3133/ofr92379A","usgsCitation":"Frost, T.P., Bailey, E., Bradley, L.A., O’Leary, R.M., and Motooka, J.M., 1992, Analytical results of stream-sediment sample data from the Bethel and southern part of the Russian Mission 1 degree by 3 degrees quadrangles, Southwest Alaska: U.S. Geological Survey Open-File Report 92-379, 119 p. ;28 cm., https://doi.org/10.3133/ofr92379A.","productDescription":"119 p. ;28 cm.","costCenters":[],"links":[{"id":150203,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1992/0379a/report-thumb.jpg"},{"id":46001,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1992/0379a/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c461","contributors":{"authors":[{"text":"Frost, T. 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Geological Survey, 1990"},"predicate":"IS_PART_OF","object":{"id":33240,"text":"b1999 - 1992 - Geologic studies in Alaska by the U.S. Geological Survey, 1990","indexId":"b1999","publicationYear":"1992","noYear":false,"title":"Geologic studies in Alaska by the U.S. Geological Survey, 1990"},"id":1}],"lastModifiedDate":"2025-01-27T19:40:07.491161","indexId":"b1999","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1999","title":"Geologic studies in Alaska by the U.S. Geological Survey, 1990","docAbstract":"This collection of papers continues the annual series of U.S. Geological Survey (USGS) reports on geologic investigations in Alaska. From 1975 through 1988, the series was published as USGS circulars. The first of these appeared under the title \"The United States Geological Survey in Alaska: Accomplishments during 1975,\" and the series continued to the last annual circular entitled \"Geologic studies in Alaska by the U.S. Geological Survey during 1987,\" which reflects a title change made in 1986. This 1990 volume continues the bulletin format started in 1988. As in 1989, this volume separates shorter contributions as Geologic Notes from more extensive Articles.
This 1990 volume of 18 Articles and 4 Geologic Notes represents the broad range of USGS research activities carried out in Alaska over the past few years. These studies include topics on mineral and other resources such as gold (Y eend), platinum-group elements (Cathrall and Antweiler), coal (Roberts, Stricker, and Affolter), and petroleum (Howell, Bird, and others). Many other investigations provide background geochemical (Kilburn, Box, and others) and geologic data needed for resource evaluation as well as for determining the general geologic framework of Alaska, as in stratigraphic, sedimentologic, and paleontologic and radiometric age studies (Blodgett, Clough, and others; Box and Elder; Dickinson and Skipp; Marincovich and Moriya; McLean and Stanley; Stanley, Flores, and Wiley; Roeske, Pavlis, and others); geophysics (Sampson, Labson, and Long); structure and tectonic evaluations (Bradley and Kosky; Clendenen, Sliter, and Byrne; Karl; Csejtey; Howell, Johnsson, and others); and geomorphic and late Quaternary studies (Carter and Hillhouse; Galloway, Huebner, and others; McGimsey, Richter, and others; Nelson and Carter). These studies span nearly the entire State from the North Slope and Brooks Range to interior, southwestern, and south-central Alaska (fig. 1).
Two bibliographies (White) at the end of the volume list (1) reports about Alaska in USGS publications released in 1990 and (2) reports about Alaska by USGS authors in publications outside the USGS in 1990. A bibliography and index of papers in past USGS circulars that are devoted to geologic research and accomplishments in Alaska (1975 to 1986) is published as USGS Open-File Report 87-420.
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south-central Alaska","linkFileType":{"id":5,"text":"html"}},{"id":481299,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22244.htm","text":"Geochemically anomalous areas in the eastern Goodnews Bay 1 degree by 3 degree quadrangle, southwest Alaska","linkFileType":{"id":5,"text":"html"}},{"id":481300,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22245.htm","text":"Gold placers, gold source, and high terrace gravels in the Fortymile River area, Alaska","linkFileType":{"id":5,"text":"html"}},{"id":481301,"rank":10,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22246.htm","text":"Reconnaissance sandstone petrology and provenance of the Cantwell Formation, central Alaska","linkFileType":{"id":5,"text":"html"}},{"id":481302,"rank":11,"type":{"id":36,"text":"NGMDB Index 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Alaska","linkFileType":{"id":5,"text":"html"}},{"id":402792,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22239.htm","text":"Arc and extensional basin geochemical and tectonic affinities for Maiyumerak basalts in the western Brooks Range","linkFileType":{"id":5,"text":"html"}}],"country":"United 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Dwight 0000-0001-9116-5289 bradleyorchard2@gmail.com","orcid":"https://orcid.org/0000-0001-9116-5289","contributorId":2358,"corporation":false,"usgs":true,"family":"Bradley","given":"Dwight","email":"bradleyorchard2@gmail.com","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"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":660754,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Ford, Arthur B.","contributorId":52578,"corporation":false,"usgs":true,"family":"Ford","given":"Arthur B.","affiliations":[],"preferred":false,"id":660755,"contributorType":{"id":2,"text":"Editors"},"rank":2}]}} ,{"id":33241,"text":"b2041 - 1992 - Geologic studies in Alaska by the U.S. Geological Survey, 1991","interactions":[],"lastModifiedDate":"2025-01-27T19:48:48.871928","indexId":"b2041","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2041","title":"Geologic studies in Alaska by the U.S. Geological Survey, 1991","docAbstract":"This collection of twenty-one papers continues the annual series of U.S. Geological Survey reports on the geology of Alaska. These contributions, which include full-length Articles and shorter Geologic Notes, are grouped under two broad headings: Mineral Resource Studies (ten papers) and Geologic Framework Studies (eleven papers). Reports on mineral resources discuss exploration geochemistry in the Howard Pass quadrangle, lditarod quadrangle, and Admiralty Island, a mineral resource appraisal of the Bethel quadrangle, a fluid-inclusion study in the Nome Gold District, geochemistry of lode-gold deposits in the Seldovia quadrangle, a new occurrence of placer gold in the Seldovia quadrangle, gold in coal in the Healy quadrangle, experimental abrasion of detrital gold, and a new occurrence of rareearth minerals in southeastern Alaska. Under the heading of Geologic Framework Studies are reports on sedimentology and (or) stratigraphy in the Seldovia, Lime Hills, and Medfra quadrangles, the Kandik region, and the Alexander terrane in southeastern Alaska. Other papers report on the isotope geochemistry of veins and thermal maturity of the Kandik region, metamorphism and deformation of the Yukon-Tanana and Taylor Mountain terranes in eastcentral Alaska, magnetic susceptibilities of plutonic rocks in southeastern Alaska, terrane nomenclature in northern Alaska, and uplift of Mt. McKinley. These studies span nearly the entire State from the North Slope and Brooks Range to interior, western, southwestern, southcentral, and southeastern Alaska (fig. 1 ).
Two bibliographies on Alaskan geology at the end of the volume list ( 1) reports about Alaska in USGS publications released in 1991, and (2) reports about Alaska by USGS authors in publications outside the USGS in 1991.
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Alaska","linkFileType":{"id":5,"text":"html"}},{"id":481308,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22301.htm","text":"Fluid-inclusion study of the Rock Creek area, Nome mining district, Seward Peninsula, Alaska","linkFileType":{"id":5,"text":"html"}},{"id":481309,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22302.htm","text":"Geochemically anomalous areas in the west-central part of the Howard Pass quadrangle, National Petroleum Reserve, Alaska: evidence for sediment-hosted Zn-Pb-Ag-Ba mineralization","linkFileType":{"id":5,"text":"html"}},{"id":481310,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22303.htm","text":"Geochemistry of lode-gold deposits, Nuka Bay district, southern Kenai Peninsula","linkFileType":{"id":5,"text":"html"}},{"id":481311,"rank":9,"type":{"id":36,"text":"NGMDB Index 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Dwight Culver","contributorId":99197,"corporation":false,"usgs":true,"family":"Bradley","given":"Dwight","email":"","middleInitial":"Culver","affiliations":[],"preferred":false,"id":727921,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":727922,"contributorType":{"id":2,"text":"Editors"},"rank":2}]}} ,{"id":59149,"text":"mf2021F - 1992 - Mineral and energy resource assessment maps of the Mount Katmai, Naknek, and western Afognak quadrangles, Alaska","interactions":[],"lastModifiedDate":"2018-03-23T16:09:50","indexId":"mf2021F","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2021","chapter":"F","title":"Mineral and energy resource assessment maps of the Mount Katmai, Naknek, and western Afognak quadrangles, Alaska","docAbstract":"On the basis of new geologic mapping and exploration geochemical studies, we have provided a mineral and energy resource assessment of the Mount Katmai, Naknek, and western Afognak quadrangles, Alaska. We delineate four tracts of ground that have metallic mineral resources. The mineral deposit types considered in each tract are summarized in table 4. Estimates of the number of undiscovered mineral deposits have been made for porphyry copper and polymetallic vein deposits. We estimate that one undiscovered porphyry copper deposit is present in the Katmai study area at the ten percent probability level. Although the sampling density may be too low to give an accurate estimate of the number of undiscovered polymetallic vein deposits, we suggest that, at a minimum, there is a five percent probability for five or more undiscovered polymetallic vein deposits in the Katmai study area. In addition, several areas have potential for undiscovered porphyry molybdenum, massive sulfide, and epithermal gold and mercury deposits.
\nSeveral placer gold claims have been filed in the area; one is still active. One claim, on American Creek, produced a small but unknown amount of gold. Several source areas for gold are identified in this study and would provide potential sources for gold in stream placer deposits given the right hydrologic conditions. Many of these sites in the Kulik Lake area have been prospected with only limited success. However, the upper reaches of lkagluik Creek and some areas of the Rainbow River in the central part of Katmai National Park may also contain undiscovered placer gold resources. Berryhill (1963) investigated the titanium-rich black sand beach placers along the coast of Bristol Bay at Egegik Bay and concluded that they did not constitute a resource for either titanium or gold.
\nSand and gravel deposits are locally abundant (Riehle and Detterman, in press) and are adequate to supply local demand. No cinder resources have been delineated.
\nEnergy potential evaluated during the study includes geothermal, oil and gas, and coal resources. A few warm springs were found, but no hot springs areas suitable for geothermal development exist within the study area. Better sites for geothermal resources have been identified on the Alaska Peninsula south of the study area (Smith and Shaw, 1975).
\nThe potential for commercial accumulations of oil and gas in the Naknek, Mount Katmai, and western Afognak quadrangles is low. Area E1, in the Naknek quadrangle along Bristol Bay, has low potential for thermogenic oil and gas (Church, Detterman, and Wilson, 1989). In area E2, oil seeps are along the anticlinal structures both north and south of the Katmai study area. Studies by Magoon and Anders (1992) indicate that the oil is from lower Mesozoic sedimentary rocks. Surface exposures of the Naknek Formation have uniformly indicated poor reservoir characteristics where studied, both here and in the adjacent quadrangles, and the shallow depth of burial of the Naknek Formation probably would result in flushing of the reservoir by meteoric water if oil were present.
\nCoal seams as much as several meters in aggregate thickness crop out in Tertiary rocks in the Geographic Harbor area. Since these coal beds occur within withdrawn Federal lands, there has been no incentive to evaluate them as coal resources. Given different land accessibility and a local market, these beds could constitute a small marketable coal resource.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2021F","usgsCitation":"Church, S.E., Riehle, J., Magoon, L.B., and Campbell, D.L., 1992, Mineral and energy resource assessment maps of the Mount Katmai, Naknek, and western Afognak quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 2021, 22 p., https://doi.org/10.3133/mf2021F.","productDescription":"22 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":180081,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf2021F.jpg"},{"id":310217,"rank":701,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/2021-F/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":105190,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_5619.htm","linkFileType":{"id":5,"text":"html"},"description":"5619"}],"country":"United States","state":"Alaska","otherGeospatial":"Mount Katmai Quadrangle, Naknek Quadrangle, Western Afognak Quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -162,58 ], [ -162,59 ], [ -150,59 ], [ -150,58 ], [ -162,58 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db635802","contributors":{"authors":[{"text":"Church, S. E.","contributorId":58260,"corporation":false,"usgs":true,"family":"Church","given":"S.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":261519,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Riehle, J.R.","contributorId":73573,"corporation":false,"usgs":true,"family":"Riehle","given":"J.R.","affiliations":[],"preferred":false,"id":261520,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Magoon, L. B.","contributorId":44531,"corporation":false,"usgs":true,"family":"Magoon","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":261518,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Campbell, D. L.","contributorId":90726,"corporation":false,"usgs":true,"family":"Campbell","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":261521,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":59560,"text":"mf1996D - 1992 - Map, tables, and summary of fossil and isotopic age data, Mount Hayes Quadrangle, eastern Alaska range, Alaska","interactions":[],"lastModifiedDate":"2015-10-21T09:30:40","indexId":"mf1996D","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1996","chapter":"D","title":"Map, tables, and summary of fossil and isotopic age data, Mount Hayes Quadrangle, eastern Alaska range, Alaska","docAbstract":"This report describes, summarizes, and interprets all known bedrock fossil and isotopic age studies for the Mount Hayes quadrangle, eastern Alaska Range, Alaska. The accompanying map shows the location of all known bedrock fossil and isotopic sample localities in the quadrangle on a generalized geologic base map. These fossil and isotopic age data are obtained from new studies, unpublished data of the U.S. Geological Survey, contributed unpublished data, and published data. This report is one result of a five-year mineral resource assessment of the quadrangle that was done during the summers of 1978 through 1982, with additional topical studiesin 1985 and 1986. This report is one part of a folio on the geological, geochemical, geophysical, and mineral-resource assessment studies of the quadrangle prepared as part of the Alaskan Mineral Resource Assessment Program (AMRAP) of the U.S. Geological Survey.
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