{"pageNumber":"390","pageRowStart":"9725","pageSize":"25","recordCount":11386,"records":[{"id":70227314,"text":"70227314 - 1971 - Earth-science studies of a nuclear test area in the western Aleutian Islands: Supplementary hydrologic information: Discussion","interactions":[],"lastModifiedDate":"2022-01-07T21:06:37.284904","indexId":"70227314","displayToPublicDate":"1971-10-01T14:54:24","publicationYear":"1971","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5935,"text":"Bulletin of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Earth-science studies of a nuclear test area in the western Aleutian Islands: Supplementary hydrologic information: Discussion","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1971)82[2963:ESOANT]2.0.CO;2","usgsCitation":"Ballance, W.C., and Gard, 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C.","contributorId":98315,"corporation":false,"usgs":true,"family":"Ballance","given":"W.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":830410,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gard, L. M.","contributorId":91507,"corporation":false,"usgs":true,"family":"Gard","given":"L.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":830411,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70189002,"text":"70189002 - 1971 - Effect of vancomycin, streptomycin and tetracycline pulsating jet lavage on contaminated wounds","interactions":[],"lastModifiedDate":"2025-05-14T16:38:58.920998","indexId":"70189002","displayToPublicDate":"1971-10-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5442,"text":"Military Medicine","active":false,"publicationSubtype":{"id":10}},"title":"Effect of vancomycin, streptomycin and tetracycline pulsating jet lavage on contaminated wounds","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"Oxford Academic","doi":"10.1093/milmed/136.10.810","usgsCitation":"Cutright, D.E., Bhaskar, S.N., Gross, A., Perez, B., Beasley, J.D., and Mulcahy, D.M., 1971, Effect of vancomycin, streptomycin and tetracycline pulsating jet lavage on contaminated wounds: Military Medicine, v. 136, no. 10, p. 810-813, https://doi.org/10.1093/milmed/136.10.810.","productDescription":"4 p.","startPage":"810","endPage":"813","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":343106,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"136","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"596622a1e4b0d1f9f05cefd3","contributors":{"authors":[{"text":"Cutright, Duane E.","contributorId":28191,"corporation":false,"usgs":false,"family":"Cutright","given":"Duane","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":702386,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bhaskar, Surindar N.","contributorId":93815,"corporation":false,"usgs":false,"family":"Bhaskar","given":"Surindar","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":702387,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gross, Arthur","contributorId":120963,"corporation":false,"usgs":false,"family":"Gross","given":"Arthur","email":"","affiliations":[],"preferred":false,"id":702388,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Perez, Bienvenido","contributorId":44751,"corporation":false,"usgs":false,"family":"Perez","given":"Bienvenido","email":"","affiliations":[],"preferred":false,"id":702389,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Beasley, Joe D. III","contributorId":36881,"corporation":false,"usgs":false,"family":"Beasley","given":"Joe","suffix":"III","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":702390,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mulcahy, Daniel M. dmulcahy@usgs.gov","contributorId":3102,"corporation":false,"usgs":true,"family":"Mulcahy","given":"Daniel","email":"dmulcahy@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":702391,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70210477,"text":"70210477 - 1971 - Volcanology, geochemistry, and petrology: U.S. National Report, 1967-1971, Fifteenth General Assembly, IUGG: Investigations at active volcanoes","interactions":[],"lastModifiedDate":"2020-06-04T14:06:40.313419","indexId":"70210477","displayToPublicDate":"1971-06-04T09:03:40","publicationYear":"1971","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3879,"text":"Eos, Earth and Space Science News","active":true,"publicationSubtype":{"id":10}},"title":"Volcanology, geochemistry, and petrology: U.S. National Report, 1967-1971, Fifteenth General Assembly, IUGG: Investigations at active volcanoes","docAbstract":"<div id=\"article__content\" class=\"col-sm-12 col-md-8 col-lg-8 article__content article-row-left\"><div class=\"article__body \"><div class=\"article-section__content en main\"><p>The field of volcanology has expanded greatly in the years 1967–1970, and work on active volcanoes has kept pace with this expansion. I have restricted this summary and the accompanying bibliography to studies by U.S.‐based investigators of active or potentially active volcanoes. I have been immeasurably aided in writing this summary by communications from R. Citron of the Smithsonian Institution Center for Short‐Lived Phenomena, W. Melson and T. Simkin of the Smithsonian Institution, A. McBirney of the Center for Volcanology, University of Oregon, R.B. Forbes of the University of Alaska, and R.W. Decker of Dartmouth College.</p></div></div></div>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/EO052i005pIU057","usgsCitation":"Wright, T., 1971, Volcanology, geochemistry, and petrology: U.S. National Report, 1967-1971, Fifteenth General Assembly, IUGG: Investigations at active volcanoes: Eos, Earth and Space Science News, v. 52, no. 5, p. 57-62, https://doi.org/10.1029/EO052i005pIU057.","productDescription":"6 p.","startPage":"57","endPage":"62","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":375355,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"5","noUsgsAuthors":false,"publicationDate":"2012-04-12","publicationStatus":"PW","contributors":{"authors":[{"text":"Wright, Thomas L. twright@usgs.gov","contributorId":3890,"corporation":false,"usgs":true,"family":"Wright","given":"Thomas L.","email":"twright@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":790331,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70227417,"text":"70227417 - 1971 - Quaternary faulting in the eastern Alaska Range","interactions":[],"lastModifiedDate":"2022-01-13T21:54:42.923137","indexId":"70227417","displayToPublicDate":"1971-06-01T15:45:27","publicationYear":"1971","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5935,"text":"Bulletin of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Quaternary faulting in the eastern Alaska Range","docAbstract":"<p>Quaternary faulting is well displayed along the Denali fault system and the recently recognized and related Totschunda fault system in the eastern Alaska Range. The principal movement on both fault systems is right-lateral strike-slip. Offset glacial features of Wisconsin age indicate minimum Holocene slip rates of 1.1 to 3.5 cm per year along parts of the Denali fault system, and 0.9 to 3.3 cm per year along the Totschunda fault system. Strike-slip movement along the Denali fault system may be no older than early Pliocene and, southeast of the Totschunda fault system junction, may have terminated by the middle Pleistocene. The strike-slip Totschunda fault system, a much younger feature probably no older than middle Pleistocene, exhibits 9 to 10 km of right-lateral offset and 1,500 m of relative vertical movement. The Totschunda fault system is aligned with, and has the same sense of slip as, the Fairweather fault in the Gulf of Alaska.</p><p>The Denali fault system and the Queen Charlotte Islands fault are part of a major transform fault system separating the North American and Pacific plates. Continental southern Alaska between the Aleutian arc and the Denali fault system is now largely coupled to the Pacific plate. The Totschunda-Fairweather alignment probably represents the beginning of a new transform fault by-passing the southeast part of the Denali fault system.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1971)82[1529:QFITEA]2.0.CO;2","usgsCitation":"Richter, D., and Matson, N., 1971, Quaternary faulting in the eastern Alaska Range: Bulletin of the Geological Society of America, v. 82, no. 6, p. 1529-1540, https://doi.org/10.1130/0016-7606(1971)82[1529:QFITEA]2.0.CO;2.","productDescription":"12 p.","startPage":"1529","endPage":"1540","costCenters":[],"links":[{"id":394352,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Alaska Range, Denali fault system, Queen Charlotte Islands, Totschunda fault system","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -162.2900390625,\n              58.63121664342478\n            ],\n            [\n              -162.333984375,\n              58.516651799363785\n            ],\n            [\n              -161.4990234375,\n              58.309488840677645\n            ],\n            [\n              -159.7412109375,\n              58.88194208135912\n            ],\n            [\n              -155.17089843749997,\n              61.227957176677876\n            ],\n            [\n              -150.205078125,\n              62.36999628130772\n            ],\n            [\n              -148.5791015625,\n              62.79493487887006\n            ],\n            [\n              -146.6015625,\n              62.59334083012024\n            ],\n            [\n              -145.634765625,\n              62.062733258846514\n            ],\n            [\n              -141.0205078125,\n              60.261617082844616\n            ],\n            [\n              -141.0205078125,\n              62.83508901142283\n            ],\n            [\n              -143.7451171875,\n              63.93737246791484\n            ],\n            [\n              -147.3046875,\n              64.32087157990324\n            ],\n            [\n              -149.4140625,\n              64.01449619484472\n            ],\n            [\n              -157.32421875,\n              62.30879369102805\n            ],\n            [\n              -161.1474609375,\n              59.5343180010956\n            ],\n            [\n              -162.2900390625,\n              58.63121664342478\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"82","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Richter, D.H.","contributorId":43325,"corporation":false,"usgs":true,"family":"Richter","given":"D.H.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":830776,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Matson, N.A. Jr.","contributorId":102956,"corporation":false,"usgs":true,"family":"Matson","given":"N.A.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":830777,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70210063,"text":"70210063 - 1971 - Origin and emplacement of the ultramafic rocks of the Emigrant Gap area, California","interactions":[],"lastModifiedDate":"2020-05-13T13:18:17.533227","indexId":"70210063","displayToPublicDate":"1971-05-12T15:34:30","publicationYear":"1971","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Origin and emplacement of the ultramafic rocks of the Emigrant Gap area, California","docAbstract":"<p class=\"chapter-para\">The ultramafic bodies of the Emigrant Gap area are part of a mafic complex within a large composite pluton of the northern Sierra Nevada. The pluton was magmatically emplaced and is surrounded by an aureole of hornblende-hornfels facies rocks. Inclusions of country rock in ultramafic rock are of pyroxene-hornfels facies and appear to have been partly melted. Gravity studies indicate that the ultramafic bodies have near-vertical contacts extending to depths of at least 1½ to 2½ km.</p><p class=\"chapter-para\">The mafic complex shows rough concentric zoning of rock types: ultramafic bodies occur at the core; gabbro forms a discontinuous intermediate unit; and diorite, tonalite, and granodiorite occur at the margins. Within the ultramafic bodies, unserpentinized wehrlitic peridotite is dominant; dunite and olivine clinopyroxenite are present but greatly subordinate. The ultramafic rocks consist almost entirely of olivine (FO<sub>80</sub>) and diopside (Ca<sub>46</sub>Mg<sub>46</sub>Fe<sub>8</sub>); orthopyroxene, hornbolende, and plagioclase occur locally. The gabbro, diorite, tonalite, and granodiorite contain both ortho- and clinopyroxene.</p><p class=\"chapter-para\">Both ultramafic and two-pyroxene-bearing rocks were emplaced nearly simultaneously, as partly crystallized magmas and magmatic crystal mushes that had similar temperature. In all the rocks the structures are dominantly magmatic and were produced by sorting and orientation of crystals by magmatic flow. Structures produced by post-consolidation deformation and replacement are minor and local.</p><p class=\"chapter-para\">The structural and chemical relations within the mafic complex suggest that all the rocks are derived from a single gabbroic magma by crystal fractionation, with the ultramafic rocks formed by mechanical accumulation of early crystallized mafic minerals, and the two pyroxene-bearing granodiorite crystallized from a felsic differentiate. It is likely that flowage differentiation was the dominant process of crystal segregation.</p><p class=\"chapter-para\">The Emigrant Gap mafic complex is similar in structure, rock texture, and mineralogy to zoned ultramafic complexes, such as those of south-eastern Alaska, and is very different from either stratiform or alpine-type bodies. Though unlike the Alaskan bodies in detail, it appears that this complex should be classed with the zoned complexes in any broad grouping of ultramafic occurrences.</p>","language":"English","publisher":"Oxford Press","doi":"10.1093/petrology/12.3.523","usgsCitation":"James, O., 1971, Origin and emplacement of the ultramafic rocks of the Emigrant Gap area, California: Journal of Petrology, v. 12, no. 3, p. 523-560, https://doi.org/10.1093/petrology/12.3.523.","productDescription":"38 p.","startPage":"523","endPage":"560","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":374708,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Emigrant Gap","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -120.75897216796876,\n              39.25618310939581\n            ],\n            [\n              -120.59967041015624,\n              39.25618310939581\n            ],\n            [\n              -120.59967041015624,\n              39.325268257858575\n            ],\n            [\n              -120.75897216796876,\n              39.325268257858575\n            ],\n            [\n              -120.75897216796876,\n              39.25618310939581\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"12","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"James, O.B.","contributorId":100526,"corporation":false,"usgs":true,"family":"James","given":"O.B.","email":"","affiliations":[],"preferred":false,"id":788958,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":13585,"text":"ofr1775MP - 1971 - Selected references pertaining to the geology of the proposed Trans-Alaska Pipeline route","interactions":[],"lastModifiedDate":"2014-08-06T16:48:47","indexId":"ofr1775MP","displayToPublicDate":"1971-01-01T16:47:34","publicationYear":"1971","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":"1775 MP","title":"Selected references pertaining to the geology of the proposed Trans-Alaska Pipeline route","docAbstract":"No abstract available.","language":"English","publisher":"Alaska Mineral Resources Branch, U.S. Geological Survey","publisherLocation":"Menlo Park, CA","doi":"10.3133/ofr1775MP","usgsCitation":"Ferrians, O.J., 1971, Selected references pertaining to the geology of the proposed Trans-Alaska Pipeline route: U.S. Geological Survey Open-File Report 1775 MP, 14 p., https://doi.org/10.3133/ofr1775MP.","productDescription":"14 p.","numberOfPages":"14","costCenters":[],"links":[{"id":291798,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 172.4,51.2 ], [ 172.4,71.4 ], [ -130.0,71.4 ], [ -130.0,51.2 ], [ 172.4,51.2 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53e34149e4b0567f27701967","contributors":{"authors":[{"text":"Ferrians, Oscar J.","contributorId":46499,"corporation":false,"usgs":true,"family":"Ferrians","given":"Oscar","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":168066,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":18278,"text":"ofr7155 - 1971 - Magnetic susceptibilities of crystalline rock samples, Yukon River-Porcupine River area, east-central Alaska","interactions":[],"lastModifiedDate":"2023-03-15T18:19:42.433996","indexId":"ofr7155","displayToPublicDate":"1971-01-01T00:00:00","publicationYear":"1971","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":"71-55","title":"Magnetic susceptibilities of crystalline rock samples, Yukon River-Porcupine River area, east-central Alaska","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr7155","usgsCitation":"Brosge, W.P., and Conradi, A., 1971, Magnetic susceptibilities of crystalline rock samples, Yukon River-Porcupine River area, east-central Alaska: U.S. Geological Survey Open-File Report 71-55, Report: 8 p.; 1 Plate: 22.25 x 17.40 inches, https://doi.org/10.3133/ofr7155.","productDescription":"Report: 8 p.; 1 Plate: 22.25 x 17.40 inches","costCenters":[],"links":[{"id":106520,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8653.htm","linkFileType":{"id":5,"text":"html"},"description":"8653"},{"id":47633,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1971/0055/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":47632,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1971/0055/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":150943,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1971/0055/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon River-Porcupine River area","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -141,\n              68\n            ],\n            [\n              -151.283,\n              68\n            ],\n            [\n              -151.283,\n              65.279\n            ],\n            [\n              -141,\n              65.279\n            ],\n            [\n              -141,\n              68\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db64936b","contributors":{"authors":[{"text":"Brosge, William Peters","contributorId":40191,"corporation":false,"usgs":true,"family":"Brosge","given":"William","email":"","middleInitial":"Peters","affiliations":[],"preferred":false,"id":178837,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Conradi, Arthur","contributorId":67515,"corporation":false,"usgs":true,"family":"Conradi","given":"Arthur","email":"","affiliations":[],"preferred":false,"id":178838,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":47911,"text":"ofr717 - 1971 - Lake-level fluctuations in the Kenai-Soldotna area, Alaska, 1967-71","interactions":[],"lastModifiedDate":"2023-03-14T20:59:45.116044","indexId":"ofr717","displayToPublicDate":"1971-01-01T00:00:00","publicationYear":"1971","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":"71-7","title":"Lake-level fluctuations in the Kenai-Soldotna area, Alaska, 1967-71","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr717","usgsCitation":"Anderson, G.S., and Jones, S.H., 1971, Lake-level fluctuations in the Kenai-Soldotna area, Alaska, 1967-71: U.S. Geological Survey Open-File Report 71-7, 5 p., https://doi.org/10.3133/ofr717.","productDescription":"5 p.","costCenters":[],"links":[{"id":414139,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_52124.htm","linkFileType":{"id":5,"text":"html"}},{"id":162826,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":111692,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.dggs.dnr.state.ak.us/pubs/id/10883","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Kenai-Soldotna area","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -150.89436456214403,\n              60.485895189763056\n            ],\n            [\n              -150.89436456214403,\n              60.82215362023882\n            ],\n            [\n              -151.45866168192484,\n              60.82215362023882\n            ],\n            [\n              -151.45866168192484,\n              60.485895189763056\n            ],\n            [\n              -150.89436456214403,\n              60.485895189763056\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4270","contributors":{"authors":[{"text":"Anderson, G. S.","contributorId":81928,"corporation":false,"usgs":true,"family":"Anderson","given":"G.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":236509,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, S. H.","contributorId":68759,"corporation":false,"usgs":true,"family":"Jones","given":"S.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":236508,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":34471,"text":"b1028U - 1971 - Geology of the Near Islands, Alaska, with a section on the surficial geology of the Near Islands","interactions":[],"lastModifiedDate":"2023-10-31T19:58:33.47836","indexId":"b1028U","displayToPublicDate":"1971-01-01T00:00:00","publicationYear":"1971","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":"1028","chapter":"U","title":"Geology of the Near Islands, Alaska, with a section on the surficial geology of the Near Islands","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b1028U","usgsCitation":"Gates, O., Powers, H.A., Wilcox, R.E., and Schafer, J., 1971, Geology of the Near Islands, Alaska, with a section on the surficial geology of the Near Islands: U.S. Geological Survey Bulletin 1028, Report: vii, 114 p.; 3 Plates: 45.50 x 23.00 inches or smaller, https://doi.org/10.3133/b1028U.","productDescription":"Report: vii, 114 p.; 3 Plates: 45.50 x 23.00 inches or smaller","startPage":"709","endPage":"822","costCenters":[],"links":[{"id":62385,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1028u/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":62384,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1028u/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":96436,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1028u/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":109186,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_20607.htm","linkFileType":{"id":5,"text":"html"},"description":"20607"},{"id":62386,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1028u/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":167758,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1028u/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Near Islands","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              172.58813629008972,\n              53.060193348916414\n            ],\n            [\n              172.3726749455197,\n              52.89757268840765\n            ],\n            [\n              173.38928833187214,\n              52.368989367540735\n            ],\n            [\n              173.79289901958884,\n              52.3356247854052\n            ],\n            [\n              174.1904403736546,\n              52.70309035956177\n            ],\n            [\n              174.1388510376304,\n              52.752710876038236\n            ],\n            [\n              173.07671764890335,\n              53.02005192243993\n            ],\n            [\n              172.58813629008972,\n              53.060193348916414\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6adeb1","contributors":{"authors":[{"text":"Gates, Olcott","contributorId":42638,"corporation":false,"usgs":true,"family":"Gates","given":"Olcott","email":"","affiliations":[],"preferred":false,"id":213019,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powers, Howard Adorno","contributorId":106544,"corporation":false,"usgs":true,"family":"Powers","given":"Howard","email":"","middleInitial":"Adorno","affiliations":[],"preferred":false,"id":213021,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilcox, Ray E.","contributorId":63074,"corporation":false,"usgs":true,"family":"Wilcox","given":"Ray","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":213020,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schafer, John P.","contributorId":83621,"corporation":false,"usgs":true,"family":"Schafer","given":"John P.","affiliations":[],"preferred":false,"id":887269,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70010399,"text":"70010399 - 1971 - A Pliocene flora and insect fauna from the Bering Strait region","interactions":[],"lastModifiedDate":"2020-12-18T23:43:27.22454","indexId":"70010399","displayToPublicDate":"1971-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"A Pliocene flora and insect fauna from the Bering Strait region","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif\"><div id=\"aep-abstract-id5\" class=\"abstract author\"><div id=\"aep-abstract-sec-id6\"><p>A flood-plain forest has been preserved beneath a lava flow that invaded the Inmachuk River Valley in the northern part of the Seward Peninsula, Alaska, during the Pliocene Epoch. The fossil flora is of great biogeographic interest because of its position (Fig. 1) in a tundra region about 250 km east of Bering Strait, 75 km south of the Arctic Circle, and 65 km west of the northwestern limit of spruce-birch forest. It provides insight into the history of the development of the circumpolar boreal forest (taiga). A rich arthropod fauna casts light on the phylogeny of several modern insect genera and on the origin of modern tundra faunas. A potassium-argon analysis of the overlying basaltic lava provides our first radiometric age estimate (5.7±0.2 million years) for the Clamgulchian Stage, a Late Tertiary time-stratigraphic unit based on fossil plants and widely recognized in Alaska (<span class=\"small-caps\">Wolfe</span><span>&nbsp;</span>and<span>&nbsp;</span><span class=\"small-caps\">Hopkins</span><span>&nbsp;</span>1967) and northeastern Siberia.</p></div></div></div><ul id=\"issue-navigation\" class=\"issue-navigation u-margin-s-bottom u-bg-grey1\"></ul>","language":"English","publisher":"Elsevier","doi":"10.1016/0031-0182(71)90032-0","issn":"00310182","usgsCitation":"Hopkins, D., Matthews, J., Wolfe, J.A., and Silberman, M., 1971, A Pliocene flora and insect fauna from the Bering Strait region: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 9, no. 3, p. 211-231, https://doi.org/10.1016/0031-0182(71)90032-0.","productDescription":"21 p.","startPage":"211","endPage":"231","numberOfPages":"21","costCenters":[],"links":[{"id":219069,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e2f7e4b0c8380cd45d5f","contributors":{"authors":[{"text":"Hopkins, D.M.","contributorId":103646,"corporation":false,"usgs":true,"family":"Hopkins","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":358836,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Matthews, J.V.","contributorId":37886,"corporation":false,"usgs":true,"family":"Matthews","given":"J.V.","affiliations":[],"preferred":false,"id":358835,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wolfe, J. A.","contributorId":14026,"corporation":false,"usgs":true,"family":"Wolfe","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":358834,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Silberman, M.L.","contributorId":10013,"corporation":false,"usgs":true,"family":"Silberman","given":"M.L.","affiliations":[],"preferred":false,"id":358833,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70226469,"text":"70226469 - 1970 - Lower Devonian graptolites from southeastern Alaska","interactions":[],"lastModifiedDate":"2021-11-18T16:53:20.150648","indexId":"70226469","displayToPublicDate":"2021-11-18T10:29:32","publicationYear":"1970","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2614,"text":"Lethaia","active":true,"publicationSubtype":{"id":10}},"title":"Lower Devonian graptolites from southeastern Alaska","docAbstract":"<div class=\"abstract-group\"><div class=\"article-section__content en main\"><p>The youngest zones of<span>&nbsp;</span><i>Monograptus</i><span>&nbsp;</span>occur in Devonian black shale and slate along the western shore of Prince of Wales Island and on Noyes Island, southeastern Alaska. The following five species of<span>&nbsp;</span><i>Monograptus</i>, in close association with vascular plants and marine shelly faunas, indicate a Praguian, (Siegenian to Early Emsian), late Lower Devonian and possibly early Middle Devonian age:<span>&nbsp;</span><i>M. yukonensis</i><span>&nbsp;</span>Jackson &amp; Lenz,<span>&nbsp;</span><i>M.</i><span>&nbsp;</span>n. sp. aff.<span>&nbsp;</span><i>yukonensis ?</i><span>&nbsp;</span>Jaeger &amp; Stein,<span>&nbsp;</span><i>M. aeqimbilis notoaequakilis</i><span>&nbsp;</span>Jaeger &amp; Stein,<span>&nbsp;</span><i>M. pacificus</i><span>&nbsp;</span>Jaeger n. sp. and<span>&nbsp;</span><i>M. craigensis</i><span>&nbsp;</span>Jaeger n. sp. The<span>&nbsp;</span><i>yukonensis</i><span>&nbsp;</span>zone containing<span>&nbsp;</span><i>M. craigensis</i><span>&nbsp;</span>in its upper part is followed stratigraphically higher by the<span>&nbsp;</span><i>M. pacificus</i><span>&nbsp;</span>zone – the youngest occurrence of<span>&nbsp;</span><i>Monograptus.</i><span>&nbsp;</span>The new species belong to the<span>&nbsp;</span><i>M. uncinatus</i><span>&nbsp;</span>group and, like most Praguian monograptids, have long dorsal tongues on their siculae.<span>&nbsp;</span><i>M. craigensis</i><span>&nbsp;</span>and<span>&nbsp;</span><i>M. pacificus</i><span>&nbsp;</span>increase to seven the number of species of<span>&nbsp;</span><i>Monograptus</i><span>&nbsp;</span>known from the Praguian. On the basis of the Alaskan material, the geographical distribution of<span>&nbsp;</span><i>M. aequabilis notoaequabilis</i><span>&nbsp;</span>now includes North America in addition to previously recorded occurrences in Australia, Southeast Asia, and Europe. This broad geographic distribution suggests that the last survivors of<span>&nbsp;</span><i>Monograptus</i><span>&nbsp;</span>had worldwide distribution and a rather uniform assemblage of species.</p></div></div>","language":"English","publisher":"Wiley-Blackwell","doi":"10.1111/j.1502-3931.1970.tb01857.x","usgsCitation":"Churkin, M., Jaeger, H., and Eberlein, G., 1970, Lower Devonian graptolites from southeastern Alaska: Lethaia, v. 3, no. 2, p. 183-202, https://doi.org/10.1111/j.1502-3931.1970.tb01857.x.","productDescription":"20 p.","startPage":"183","endPage":"202","costCenters":[],"links":[{"id":391870,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Noyes Island, Prince of Wales Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -133.9398193359375,\n              54.63887647795803\n            ],\n            [\n              -131.9183349609375,\n              54.63887647795803\n            ],\n            [\n              -131.9183349609375,\n              55.606281251302114\n            ],\n            [\n              -133.9398193359375,\n              55.606281251302114\n            ],\n            [\n              -133.9398193359375,\n              54.63887647795803\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"3","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Churkin, Michael Jr.","contributorId":62566,"corporation":false,"usgs":true,"family":"Churkin","given":"Michael","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":827011,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jaeger, Herman","contributorId":269399,"corporation":false,"usgs":false,"family":"Jaeger","given":"Herman","email":"","affiliations":[],"preferred":false,"id":827012,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Eberlein, G. Donald","contributorId":52564,"corporation":false,"usgs":true,"family":"Eberlein","given":"G. Donald","affiliations":[],"preferred":false,"id":827013,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70178785,"text":"70178785 - 1970 - College, Alaska, observatory","interactions":[],"lastModifiedDate":"2016-12-07T14:22:11","indexId":"70178785","displayToPublicDate":"2016-05-18T00:00:00","publicationYear":"1970","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1435,"text":"Earthquake Information Bulletin (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"College, Alaska, observatory","docAbstract":"<p>[none]</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"1970, College, Alaska, observatory: Earthquake Information Bulletin (USGS), v. 2, no. 2, p. 10-13.","productDescription":"4 p.","startPage":"10","endPage":"13","numberOfPages":"4","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":331641,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58492e0ee4b06d80b7b093e5","contributors":{"editors":[{"text":"Coffman, Jerry L.","contributorId":49706,"corporation":false,"usgs":true,"family":"Coffman","given":"Jerry","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":655129,"contributorType":{"id":2,"text":"Editors"},"rank":1}]}}
,{"id":70178797,"text":"70178797 - 1970 - Earthquake history of Alaska","interactions":[],"lastModifiedDate":"2016-12-07T14:55:10","indexId":"70178797","displayToPublicDate":"2016-05-18T00:00:00","publicationYear":"1970","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1432,"text":"Earthquake Engineering Research Institute Newsletter","active":true,"publicationSubtype":{"id":10}},"title":"Earthquake history of Alaska","docAbstract":"<p>[none]</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"1970, Earthquake history of Alaska: Earthquake Engineering Research Institute Newsletter, v. 2, no. 2, p. 30-35.","productDescription":"6 p.","startPage":"30","endPage":"35","numberOfPages":"6","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":331645,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58492e0ee4b06d80b7b093e3","contributors":{"editors":[{"text":"Coffman, Jerry L.","contributorId":49706,"corporation":false,"usgs":true,"family":"Coffman","given":"Jerry","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":655147,"contributorType":{"id":2,"text":"Editors"},"rank":1}]}}
,{"id":70042512,"text":"70042512 - 1970 - Biostratigraphy and dolomite porosity trends of the Lisburne Group","interactions":[{"subject":{"id":17993,"text":"ofr6913 - 1969 - Preliminary carbonate lithofacies maps and possible dolomite porosity trends, Mississippian-Pennsylvanian Lisburne Group, North Slope, Alaska","indexId":"ofr6913","publicationYear":"1969","noYear":false,"title":"Preliminary carbonate lithofacies maps and possible dolomite porosity trends, Mississippian-Pennsylvanian Lisburne Group, North Slope, Alaska"},"predicate":"SUPERSEDED_BY","object":{"id":70042512,"text":"70042512 - 1970 - Biostratigraphy and dolomite porosity trends of the Lisburne Group","indexId":"70042512","publicationYear":"1970","noYear":false,"title":"Biostratigraphy and dolomite porosity trends of the Lisburne Group"},"id":1}],"lastModifiedDate":"2013-01-10T13:40:56","indexId":"70042512","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"1970","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Biostratigraphy and dolomite porosity trends of the Lisburne Group","docAbstract":"This preliminary study is based on measured and carefully collected sections of the Lisburne Group (fig. 1, sees. 1-29). The outcrops extend from Cape Lisburne (sec. 1) in the west to Egaksrak River (sec. 29) in northeastern Alaska and are used as the basic building blocks for the carbonate facies maps and the cross section. Lithologic and foraminifera samples were collected at 10-foot intervals and rugose corals were collected within each section where found. The rock material was cut into thin section, and petrographic and microfossil studies were made to determine environments of deposition, facies, diagenetic changes, and microfossil content. Coral collections were studied in thin section.","largerWorkTitle":"Proceedings of the geological seminar on the North Slope of Alaska, 1970","language":"English","publisher":"American Association of Petroleum Geologists","publisherLocation":"Tulsa, OK","usgsCitation":"Armstrong, A.K., and Mamet, B.L., 1970, Biostratigraphy and dolomite porosity trends of the Lisburne Group, chap. <i>of</i> Proceedings of the geological seminar on the North Slope of Alaska, 1970, p. N1-N15.","productDescription":"15 p.","startPage":"N1","endPage":"N15","costCenters":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":265512,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":265511,"type":{"id":11,"text":"Document"},"url":"https://archives.datapages.com/data/pacific/data/028/028001/pdfs/N1.pdf"}],"country":"United States","state":"Alaska","otherGeospatial":"Lisburne Group","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 172.5,51.2 ], [ 172.5,71.4 ], [ -130.0,71.4 ], [ -130.0,51.2 ], [ 172.5,51.2 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4f87e4b0b290850f2c25","contributors":{"authors":[{"text":"Armstrong, Augustus K.","contributorId":68282,"corporation":false,"usgs":true,"family":"Armstrong","given":"Augustus","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":471675,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mamet, Bernard L.","contributorId":32524,"corporation":false,"usgs":true,"family":"Mamet","given":"Bernard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":471674,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70009962,"text":"70009962 - 1970 - Buldir Depression - A Late Tertiary graben on the Aleutian Ridge, Alaska","interactions":[],"lastModifiedDate":"2025-04-18T15:49:34.613347","indexId":"70009962","displayToPublicDate":"2003-04-15T00:00:00","publicationYear":"1970","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Buldir Depression - A Late Tertiary graben on the Aleutian Ridge, Alaska","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif\"><div id=\"aep-abstract-id9\" class=\"abstract author\"><div id=\"aep-abstract-sec-id10\"><p>Buldir Depression is a large, rectilinear basin that lies on the northern edge of the Aleutian Ridge and is aligned with the arcuate chain of active volcanoes on the ridge crest. The depression appears to be a volcanic-tectonic feature, which began to form in Late Tertiary time and which is still forming. It is a graben formed by extensional rifting and accompanied by contemporaneous volcanism on the Aleutian Ridge. Subsidence rates for the depression are estimated at 20–70 cm/1,000 years. Sediments in the depression are 300 m thick and are probably pelagic and turbidite deposits of Pleistocene age. The turbidites were apparently derived from the plateau area of the Aleutian Ridge surrounding the depression. Older sediments on the northern slope of the Aleutian Ridge have a maximum thickness of 550 m and are deformed and slumped toward the Bering Sea. These sediments are postulated to overlie a mid-flank terrace on the northern Aleutian Ridge that titled to the north during the formation of Buldir Depression.</p></div></div></div><ul id=\"issue-navigation\" class=\"issue-navigation u-margin-s-bottom u-bg-grey1\"></ul>","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(70)90073-3","issn":"00253227","usgsCitation":"Marlow, M.S., Scholl, D., Buffington, E.C., Boyce, R., Alpha, T.R., Smith, P., and Shipek, C., 1970, Buldir Depression - A Late Tertiary graben on the Aleutian Ridge, Alaska: Marine Geology, v. 8, no. 1, p. 85-108, https://doi.org/10.1016/0025-3227(70)90073-3.","productDescription":"18 p.","startPage":"85","endPage":"108","costCenters":[],"links":[{"id":219338,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Buldir Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              175.65032544257753,\n              52.44934701696994\n            ],\n            [\n              175.65032544257753,\n              52.25251141031012\n            ],\n            [\n              176.16468120561115,\n              52.25251141031012\n            ],\n            [\n              176.16468120561115,\n              52.44934701696994\n            ],\n            [\n              175.65032544257753,\n              52.44934701696994\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"8","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f2ace4b0c8380cd4b2b7","contributors":{"authors":[{"text":"Marlow, M. S.","contributorId":76743,"corporation":false,"usgs":true,"family":"Marlow","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":357542,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scholl, D.W.","contributorId":106461,"corporation":false,"usgs":true,"family":"Scholl","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":357543,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buffington, E. C.","contributorId":13948,"corporation":false,"usgs":true,"family":"Buffington","given":"E.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":357539,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Boyce, R.E.","contributorId":8987,"corporation":false,"usgs":true,"family":"Boyce","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":357538,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Alpha, T. R.","contributorId":20715,"corporation":false,"usgs":true,"family":"Alpha","given":"T.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":357540,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Smith, P.J.","contributorId":6579,"corporation":false,"usgs":true,"family":"Smith","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":357537,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Shipek, C.J.","contributorId":39246,"corporation":false,"usgs":true,"family":"Shipek","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":357541,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70010436,"text":"70010436 - 1970 - The structure and origin of the large submarine canyons of the Bering Sea","interactions":[],"lastModifiedDate":"2025-04-16T15:21:45.429592","indexId":"70010436","displayToPublicDate":"2003-04-02T00:00:00","publicationYear":"1970","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"The structure and origin of the large submarine canyons of the Bering Sea","docAbstract":"<p>Three exceptionally large and long submarine canyons — Bering, Pribilof, and Zhemchug — incise the continental slope underlying the southeastern Bering Sea. Bering Canyon, the world's longest known slope valley, is approximately 400 km long and has a volume of 4,300 km<sup>3</sup>. The volume of Pribilof Canyon is 1,300 km<sup>3</sup><span>&nbsp;</span>and that of Zhemchug is 8,500 km<sup>3</sup>; Zhemchug Canyon may well be the world's largest slope valley; most other large submarine canyons have volumes less than 500 km<sup>3</sup>. Pribilof and Zhemchug canyons are further distinguished by the headward bifurcation of their slope axes to form elongated trough-shaped basins behind the regionally projected position of the shelf edge. These troughs are superimposed over structural depressions formed by down-faulted basement rocks of Mesozoic and older ages. Prior to canyon cutting these depressions were filled with as much as 2,600 m of shallow-water diatomaceous, tuffaceous, and detrital sediments largely of Tertiary age. Deposition of these sediments took place concurrently with general margin subsidence of at least 2,000 m.</p><p>The data and conclusions presented in this paper stress that the location, trend, and shape of the enormous submarine canyons cutting the Bering margin are structurally determined. However, axial cutting and headward erosion within the relatively unconsolidated Tertiary strata and the older, lithified basement rock is thought to have been caused by basinward-sliding masses of sediment; these unstable sediment bodies accumulated on the upper continental slope and outer shelf, probably near the mouths of major Alaskan rivers.</p><p>Bering Canyon was periodically cut and filled by axial sedimentation during Late Tertiary and Quaternary time. Pribilof and Zhemchug canyons, however, are thought to have been excavated entirely during the Pleistocene. It is presumed that, during one or more periods of glacially lowered sea level, the Kuskokwim and Yukon rivers emptied into or near the heads of Pribilof and Zhemchug canyons. The enormous size and unusual shape of Zhemchug Canyon resulted from the breaching of the seaward wall of an outer-shelf basement depression and the subsequent removal of nearly 4,500 km<sup>3</sup><span>&nbsp;</span>of Tertiary deposits filling it.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(70)90043-5","issn":"00253227","usgsCitation":"Scholl, D., Buffington, E.C., Hopkins, D., and Alpha, T.R., 1970, The structure and origin of the large submarine canyons of the Bering Sea: Marine Geology, v. 8, no. 3-4, p. 187-210, https://doi.org/10.1016/0025-3227(70)90043-5.","productDescription":"24 p.","startPage":"187","endPage":"210","costCenters":[],"links":[{"id":219758,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Bering Sea","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -168.48632812499997,\n              54.77534585936447\n            ],\n            [\n              -154.16015625,\n              54.77534585936447\n            ],\n            [\n              -154.16015625,\n              60.19615576604439\n            ],\n            [\n              -168.48632812499997,\n              60.19615576604439\n            ],\n            [\n              -168.48632812499997,\n              54.77534585936447\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"8","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb096e4b08c986b324f56","contributors":{"authors":[{"text":"Scholl, D.W.","contributorId":106461,"corporation":false,"usgs":true,"family":"Scholl","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":358927,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Buffington, E. 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