A developing interest in the normal distributions of potentially harmful substances in the natural environment has prompted a baseline study of a virtually pristine region along the northern coast of Alaska. The information reported here outlines the background values of copper, lead, zinc, cadmium, mercury, and arsenic in the nearshore sediments and is a companion to a similar report covering the sediments off the northwestern coast of Alaska (Barnes and Leong, 1971). This study forms a part of a larger investigation in which many other aspects of the physical, chemical, biological and geological aspects of the continental shelf are considered (Hufford, in press).
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf614","usgsCitation":"Barnes, P., Leong, K., and Gustafson, C., 1974, Map showing distribution of copper, lead, zinc, mercury, and arsenic in the sediments off the coast of northern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 614, 1 Plate: 39.67 x 32.87 inches, https://doi.org/10.3133/mf614.","productDescription":"1 Plate: 39.67 x 32.87 inches","costCenters":[],"links":[{"id":415427,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0614/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":180130,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0614/report-thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -154,70 ], [ -154,72 ], [ -144,72 ], [ -144,70 ], [ -154,70 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9fe4b07f02db660ee0","contributors":{"authors":[{"text":"Barnes, Peter","contributorId":66684,"corporation":false,"usgs":true,"family":"Barnes","given":"Peter","affiliations":[],"preferred":false,"id":261062,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leong, Kam","contributorId":103660,"corporation":false,"usgs":true,"family":"Leong","given":"Kam","affiliations":[],"preferred":false,"id":261064,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gustafson, Charles","contributorId":66780,"corporation":false,"usgs":true,"family":"Gustafson","given":"Charles","email":"","affiliations":[],"preferred":false,"id":261063,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":34075,"text":"b1307 - 1974 - Synopsis of the mineral resources and geology of Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:09:27","indexId":"b1307","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1974","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":"1307","title":"Synopsis of the mineral resources and geology of Alaska","language":"ENGLISH","publisher":"U.S. Govt. 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Off.,","doi":"10.3133/b1307","usgsCitation":"Cobb, E.H., 1974, Synopsis of the mineral resources and geology of Alaska: U.S. Geological Survey Bulletin 1307, iv, 53 p. :illus. ;24 cm., https://doi.org/10.3133/b1307.","productDescription":"iv, 53 p. :illus. ;24 cm.","costCenters":[],"links":[{"id":92568,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1307/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":163246,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1307/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adfe4b07f02db687d40","contributors":{"authors":[{"text":"Cobb, Edward Huntington","contributorId":25916,"corporation":false,"usgs":true,"family":"Cobb","given":"Edward","email":"","middleInitial":"Huntington","affiliations":[],"preferred":false,"id":212417,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"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":70198457,"text":"70198457 - 1974 - Offset plutons and history of movement along the McKinley segment of the Denali Fault system, Alaska","interactions":[],"lastModifiedDate":"2018-08-07T09:34:39","indexId":"70198457","displayToPublicDate":"1974-12-01T11:09:52","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":"Offset plutons and history of movement along the McKinley segment of the Denali Fault system, Alaska","docAbstract":"The Foraker and McGonagall plutons, bodies of granodiorite with nearly identical mineralogy and chemistry, are considered to be parts of a single igneous mass that has undergone right-lateral displacement of about 38 km along the McKinley segment of the Denali fault system since the igneous mass crystallized about 38 m.y. ago. These offset plutons place severe constraints on the amount and rate of movement along the McKinley segment since the beginning of the Oligocene Epoch. The 38-km displacement indicates an average rate of 0.1 cm/yr if movement began immediately after crystallization in early Oligocene time or an average rate of 0.4 cm/yr if movement began 10 m.y. ago in late Miocene time. These rates, however, are considerably less than Holocene movement rates measured along the fault further to the east, which suggests that the Holocene displacement rate is greater than the pre-Holocene rate or that right-lateral movement along the fault may diminish to the west.
","language":"English","publisher":"GSW","doi":"10.1130/0016-7606(1974)85<1883:OPAHOM>2.0.CO;2","usgsCitation":"Reed, B.L., and Lanphere, M.A., 1974, Offset plutons and history of movement along the McKinley segment of the Denali Fault system, Alaska: GSA Bulletin, v. 85, no. 12, p. 1883-1892, https://doi.org/10.1130/0016-7606(1974)85<1883:OPAHOM>2.0.CO;2.","productDescription":"10 p.","startPage":"1883","endPage":"1892","costCenters":[],"links":[{"id":356242,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"85","issue":"12","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":741506,"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":741507,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1007670,"text":"1007670 - 1974 - Sea otters: Their role in structuring nearshore communities","interactions":[],"lastModifiedDate":"2026-01-23T14:39:57.54662","indexId":"1007670","displayToPublicDate":"1974-09-20T00:00:00","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Sea otters: Their role in structuring nearshore communities","docAbstract":"A comparison of western Aleutian Islands with and without sea otter populations shows that this species is important in determining littoral and sublittoral community structure. Sea otters control herbivorous invertebrate populations. Removal of sea otters causes increased herbivory and ultimately results in the destruction of macrophyte associations. The observations suggest that sea otter reestablishment indirectly affects island fauna associated with macrophyte primary productivity.
","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.185.4156.1058","usgsCitation":"Estes, J.A., and Palmisano, J.F., 1974, Sea otters: Their role in structuring nearshore communities: Science, v. 185, no. 4156, p. 1058-1060, https://doi.org/10.1126/science.185.4156.1058.","productDescription":"3 p.","startPage":"1058","endPage":"1060","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130122,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Aleutian Islands","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -179.9,\n 50.329185546788835\n ],\n [\n -174.3171003891078,\n 50.17981868575107\n ],\n [\n -153.52579733207241,\n 56.45836173434543\n ],\n [\n -155.88558721139862,\n 58.89627323313465\n ],\n [\n -169.43619900751497,\n 55.10691106766798\n ],\n [\n -178.9217753832903,\n 53.89451926383247\n ],\n [\n -179.9,\n 54.35669395088499\n ],\n [\n -179.9,\n 50.329185546788835\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 179.7996479569199,\n 54.327676726197154\n ],\n [\n 170.72687537632692,\n 54.327676726197154\n ],\n [\n 170.72687537632692,\n 50.31039440409387\n ],\n [\n 179.7996479569199,\n 50.31039440409387\n ],\n [\n 179.7996479569199,\n 54.327676726197154\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"185","issue":"4156","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fc5b9","contributors":{"authors":[{"text":"Estes, J. A.","contributorId":53319,"corporation":false,"usgs":true,"family":"Estes","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":315826,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Palmisano, J. F.","contributorId":49729,"corporation":false,"usgs":true,"family":"Palmisano","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":315825,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"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":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":70209345,"text":"70209345 - 1974 - Alaska","interactions":[],"lastModifiedDate":"2020-04-03T13:57:08.435761","indexId":"70209345","displayToPublicDate":"1974-04-01T12:16:16","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1785,"text":"Geological Society Special Publication","active":true,"publicationSubtype":{"id":10}},"title":"Alaska","docAbstract":"No abstract available.
","language":"English","publisher":"Lyell Collection","doi":"10.1144/GSL.SP.2005.004.01.36","usgsCitation":"Lathram, E., Grantz, A., Barnes, D., Brew, D.A., Ovenshine, A.T., Plafker, G., Detterman, R.L., Foster, H., Churkin, M., Patton, W.W., Hoare, J., Tailleur, I., Brosge, W., Miller, T.P., and Sainsbury, C., 1974, Alaska: Geological Society Special Publication, v. 4, p. 563-589, https://doi.org/10.1144/GSL.SP.2005.004.01.36.","productDescription":"27 p.","startPage":"563","endPage":"589","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":373713,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -166.46484375,\n 56.84897198026975\n ],\n [\n -141.50390625,\n 56.84897198026975\n ],\n [\n -141.50390625,\n 70.8446726342528\n ],\n [\n -166.46484375,\n 70.8446726342528\n ],\n [\n -166.46484375,\n 56.84897198026975\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Lathram, E. 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M.","contributorId":52143,"corporation":false,"usgs":true,"family":"Hoare","given":"J. M.","affiliations":[],"preferred":false,"id":786230,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Tailleur, I.L.","contributorId":59027,"corporation":false,"usgs":true,"family":"Tailleur","given":"I.L.","email":"","affiliations":[],"preferred":false,"id":786231,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Brosge, W. P.","contributorId":58248,"corporation":false,"usgs":true,"family":"Brosge","given":"W. P.","affiliations":[],"preferred":false,"id":786232,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Miller, T. P.","contributorId":121029,"corporation":false,"usgs":true,"family":"Miller","given":"T.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":786233,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Sainsbury, C.L.","contributorId":99968,"corporation":false,"usgs":true,"family":"Sainsbury","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":786234,"contributorType":{"id":1,"text":"Authors"},"rank":15}]}} ,{"id":70209225,"text":"70209225 - 1974 - A prototype global volcano surveillance system monitoring seismic activity and tilt","interactions":[],"lastModifiedDate":"2020-03-24T14:45:20","indexId":"70209225","displayToPublicDate":"1974-03-24T14:43:17","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1093,"text":"Bulletin Volcanologique","active":true,"publicationSubtype":{"id":10}},"title":"A prototype global volcano surveillance system monitoring seismic activity and tilt","docAbstract":"The Earth Resources Technology Satellite makes it feasible for the first time to monitor the level of activity at widely separated volcanoes and to relay these data almost instantancously to one central office. This capability opens a new era in volcanology where the hundreds of normally quiescent but potentially dangerous volcanoes near populated regions around the world can be economically and reliably monitored. A prototype global volcano surveillance system has been established beginning in the fall of 1972 with the help of local scientists on 15 volcanoes in Alaska, Hawaii, Washington, California, Iceland. Guatemala, El Salvador, and Nicaragua. Data on earthquake activity and ground tilt are received 6 to 10 times daily in Menlo Park, California, within 90 minutes of transmission from the sites. Seismic event counters were installed at 19 locations with biaxial borehole tiltineters with 1 microradian sensitivity installed at seven sites. Direct comparison of seismic events that are counted with records from nearby seismic stations show the event counters work quite reliably. An order of magnitude increase in seismic events was observed prior to the eruption of Volcán Fuego in Guatemala in February, 1973. Significant changes in tilt were observed on volcanoes Kilauea. Fuego, and Pacava. This study demonstrates the technological and economic feasibility of utilizing such a volcano surveillance system throughout the world.
Several lens-shaped and irregular masses of garnet-clinopyroxenite occur along the north margin of the Red Mountain pluton, near Seldovia, Alaska. The pluton is composed of intercalated dunite, clinopyroxenite, and banded chromite layers. The chromite layers appear to dip toward the center of the mass, but they have been deformed, and in some places display isoclinal overturned folds. The garnet-clinopyroxenite bodies are compositionally layered and appear to have been deformed along with the host peridotite.
The garnet-clinopyroxenite bodies have whole-rock compositions analogous to alkali-poor anorthite gabbro or mafic anorthosite. Garnet compositions are dominated by the pyrope, grossularite, and almandine components, and the clinopyroxene bodies are rich in Ca-Tschermaks molecule (CaAl2SiO6).
Although crystallization from the liquidus is a possibility, textures, structures, and the chemical composition of the constituent mineral phases indicate that the garnet-clinopyroxenite has equilibrated in the solid state at pressures of 15 to 25 kb and temperatures of 1100°C to 1300°C. Such P-T parameters suggest an upper-mantle origin for the garnet-clinopyroxenite and the enclosing pluton.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1974)85%3C285:GFTRMP%3E2.0.CO;2","usgsCitation":"Forbes, R.B., and Swainbank, R.C., 1974, Garnet-clinopyroxenite from the Red Mountain pluton, Alaska: GSA Bulletin, v. 85, no. 2, p. 285-292, https://doi.org/10.1130/0016-7606(1974)85%3C285:GFTRMP%3E2.0.CO;2.","productDescription":"8 p.","startPage":"285","endPage":"292","costCenters":[],"links":[{"id":419360,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","city":"Seldovia","otherGeospatial":"Red Mountain pluton","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -151.59504414058836,\n 59.40418520588247\n ],\n [\n -151.59504414058836,\n 59.33027468373584\n ],\n [\n -151.41098236599433,\n 59.33027468373584\n ],\n [\n -151.41098236599433,\n 59.40418520588247\n ],\n [\n -151.59504414058836,\n 59.40418520588247\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"85","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Forbes, R. B.","contributorId":12848,"corporation":false,"usgs":true,"family":"Forbes","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":879153,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swainbank, R. C.","contributorId":96707,"corporation":false,"usgs":false,"family":"Swainbank","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":879154,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70168675,"text":"70168675 - 1974 - Subsidence, inundation, and sedimentation; environmental consequences of the 1964 Alaska earthquake in the Portage, Alaska area","interactions":[],"lastModifiedDate":"2016-05-24T10:07:40","indexId":"70168675","displayToPublicDate":"1974-01-01T11:15:00","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1437,"text":"Earthquakes & Volcanoes (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"Subsidence, inundation, and sedimentation; environmental consequences of the 1964 Alaska earthquake in the Portage, Alaska area","docAbstract":"No abstract available.
","language":"English","publisher":"U.S Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Ovenshine, A., Lawson, D.E., and Bartsch-Winkler, S., 1974, Subsidence, inundation, and sedimentation; environmental consequences of the 1964 Alaska earthquake in the Portage, Alaska area: Earthquakes & Volcanoes (USGS), v. 6, no. 6, p. 3-9.","productDescription":"7 p.","startPage":"3","endPage":"9","numberOfPages":"7","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":321592,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Portage","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -149.05975341796875,\n 60.893378706190845\n ],\n [\n -148.84002685546872,\n 60.87433449177191\n ],\n [\n -148.93341064453122,\n 60.76486103010837\n ],\n [\n -149.10301208496094,\n 60.79670385526037\n ],\n [\n -149.05975341796875,\n 60.893378706190845\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"6","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"574d6656e4b07e28b6684f05","contributors":{"authors":[{"text":"Ovenshine, A.T.","contributorId":80268,"corporation":false,"usgs":true,"family":"Ovenshine","given":"A.T.","affiliations":[],"preferred":false,"id":621241,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lawson, D. E.","contributorId":9343,"corporation":false,"usgs":true,"family":"Lawson","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":621242,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bartsch-Winkler, S. R.","contributorId":167158,"corporation":false,"usgs":false,"family":"Bartsch-Winkler","given":"S. R.","affiliations":[],"preferred":false,"id":621243,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70136641,"text":"70136641 - 1974 - Geologic map of the United States (exclusive of Alaska and Hawaii)","interactions":[],"lastModifiedDate":"2016-01-04T11:15:35","indexId":"70136641","displayToPublicDate":"1974-01-01T00:00:00","publicationYear":"1974","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Geologic map of the United States (exclusive of Alaska and Hawaii)","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/70136641","usgsCitation":"King, P.B., Beikman, H.M., and Edmonston, G.J., 1974, Geologic map of the United States (exclusive of Alaska and Hawaii), 2 Plates: 40.75 x 52.50 inches and 40.63 x 52.49 inches; Legend, https://doi.org/10.3133/70136641.","productDescription":"2 Plates: 40.75 x 52.50 inches and 40.63 x 52.49 inches; Legend","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":296984,"rank":6,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/70136641.PNG"},{"id":296983,"rank":5,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/ds11","text":"Geology of the conterminous United States at 1:2,500,000 scale a digital representation of the 1974 P.B. King and H.M. Beikman map"},{"id":296982,"rank":4,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/publication/pp901","text":"Explanatory text to accompany the Geologic map of the United States"},{"id":312742,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/unnumbered/70136641/plate-2.pdf","text":"West half","linkFileType":{"id":1,"text":"pdf"}},{"id":312741,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/unnumbered/70136641/plate-1.pdf","text":"East half","linkFileType":{"id":1,"text":"pdf"}},{"id":312743,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/unnumbered/70136641/plate-3.pdf","text":"Legend","linkFileType":{"id":1,"text":"pdf"}}],"scale":"2500000","projection":"Albers Equal Area Projection","country":"United States","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -125.33203125,\n 24.926294766395593\n ],\n [\n -125.33203125,\n 49.49667452747045\n ],\n [\n -66.62109375,\n 49.49667452747045\n ],\n [\n -66.62109375,\n 24.926294766395593\n ],\n [\n -125.33203125,\n 24.926294766395593\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2bafe4b08de9379b3477","contributors":{"authors":[{"text":"King, Philip Burke","contributorId":15607,"corporation":false,"usgs":true,"family":"King","given":"Philip","email":"","middleInitial":"Burke","affiliations":[],"preferred":false,"id":537552,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beikman, Helen M.","contributorId":76290,"corporation":false,"usgs":true,"family":"Beikman","given":"Helen","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":537553,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Edmonston, Gertrude J.","contributorId":36230,"corporation":false,"usgs":true,"family":"Edmonston","given":"Gertrude","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":537554,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1001632,"text":"1001632 - 1974 - Breeding of the black guillemot in northern Alaska","interactions":[],"lastModifiedDate":"2023-11-28T00:16:23.726351","indexId":"1001632","displayToPublicDate":"1974-01-01T00:00:00","publicationYear":"1974","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"Breeding of the black guillemot in northern Alaska","docAbstract":"No abstract available.
","language":"English","publisher":"Oxford Academic","doi":"10.2307/1366350","usgsCitation":"Divoky, G., Watson, G., and Bartonek, J., 1974, Breeding of the black guillemot in northern Alaska: Condor, v. 76, no. 3, p. 339-343, https://doi.org/10.2307/1366350.","productDescription":"5 p.","startPage":"339","endPage":"343","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":503058,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://digitalcommons.usf.edu/condor/vol76/iss3/17","text":"External Repository"},{"id":130638,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -165.58593749999997,\n 66.72254132270653\n ],\n [\n -140.9765625,\n 66.72254132270653\n ],\n [\n -140.9765625,\n 71.35706654962706\n ],\n [\n -165.58593749999997,\n 71.35706654962706\n ],\n [\n -165.58593749999997,\n 66.72254132270653\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"76","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb45a","contributors":{"authors":[{"text":"Divoky, G.J.","contributorId":15971,"corporation":false,"usgs":true,"family":"Divoky","given":"G.J.","affiliations":[],"preferred":false,"id":311388,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Watson, G.E.","contributorId":104856,"corporation":false,"usgs":true,"family":"Watson","given":"G.E.","email":"","affiliations":[],"preferred":false,"id":311390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bartonek, James C.","contributorId":38085,"corporation":false,"usgs":true,"family":"Bartonek","given":"James C.","affiliations":[],"preferred":false,"id":311389,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70156922,"text":"70156922 - 1973 - Bibliography of published reports by the U.S. Geological Survey personnel on the geology and hydrology of the Amchitka Supplementary Test Area, Aleutian Islands, Alaska, 1969-1972","interactions":[],"lastModifiedDate":"2019-11-12T16:17:02","indexId":"70156922","displayToPublicDate":"2015-09-01T00:00:00","publicationYear":"1973","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Bibliography of published reports by the U.S. Geological Survey personnel on the geology and hydrology of the Amchitka Supplementary Test Area, Aleutian Islands, Alaska, 1969-1972","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/70156922","usgsCitation":"1973, Bibliography of published reports by the U.S. Geological Survey personnel on the geology and hydrology of the Amchitka Supplementary Test Area, Aleutian Islands, Alaska, 1969-1972, 15 p., https://doi.org/10.3133/70156922.","productDescription":"15 p.","numberOfPages":"19","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":308062,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/70156922.JPG"},{"id":308544,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70156922/report.pdf","text":"Report","size":"2,389 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Aleutian Islands, Amchitka Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 178.584136963,\n 51.63677159243599\n ],\n [\n 178.592376709,\n 51.61290019118336\n ],\n [\n 179.21585083,\n 51.3254629443313\n ],\n [\n 179.508361816,\n 51.37520943448463\n ],\n [\n 179.057922363,\n 51.587309751245456\n ],\n [\n 178.628082275,\n 51.67936786087718\n ],\n [\n 178.584136963,\n 51.63677159243599\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55f2a9ace4b0dacf699ec6aa","contributors":{"compilers":[{"text":"Ohl, Jane P.","contributorId":104062,"corporation":false,"usgs":true,"family":"Ohl","given":"Jane","email":"","middleInitial":"P.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":571146,"contributorType":{"id":3,"text":"Compilers"},"rank":1}]}} ,{"id":70156917,"text":"70156917 - 1973 - Hydraulic tests in hole UAe-2, Amchitka Island, Alaska","interactions":[],"lastModifiedDate":"2019-11-12T16:14:59","indexId":"70156917","displayToPublicDate":"2015-09-01T00:00:00","publicationYear":"1973","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Hydraulic tests in hole UAe-2, Amchitka Island, Alaska","docAbstract":"Inflatable straddle packers were used to isolate and test 19 intervals ranging from 56 to 747 meters (183 to 2,450 feet) each in hole UAe-2, Amchitka Island, Alaska. Packer seats were poor in part of the hole because of unstable wall conditions. Thus, some zones had to be tested several times.
The static water levels in the intervals tested ranged from 14.2 meters (46.6 feet) below land surface in the upper interval to 33.7 meters (110.6 feet) below land surface in one of the intervals near a depth of 1,500 meters (4,900 feet).
The specific capacity of the open hole from 83.5 to 1,980.6 meters (274 to 6,498 feet) was 3.26 cubic meters per day per meter (0.182 gallon per minute per foot) of drawdown after the hole had been jetted at an average rate of 763 cubic meters per day (140 gallons per minute) for about 41 hours. Transmissivity computed from the recovery of water level after jetting stopped was 2.97 cubic meters per day per meter (239.2 gallons per day per foot).
The relative specific capacities of isolated intervals ranged from 0.001 cubic meter per day per meter (less than 0.001 gallon per minute per foot) of drawdown to 2.765 cubic meters per day per meter (0.155 gallon per minute per foot) of drawdown.
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Paleontologic evidence indicates the presence of a structurally repeated sequence at Nuka Ridge consisting of Upper Mississippian (Meramec and younger) strata overlain by Permian beds which, in turn, are succeeded by Triassic(?) and Cretaceous rocks. Mississippian calcareous mudstone and limestone units are correlated with the Lisburne Group; microcline-bearing arkose units with Mississippian and Permian macrofossils and microfossils represent the Nuka Formation; units of chert are inferred to be of Permian and Triassic age; and wacke at the top of the sequence resembles unnamed wacke assigned to the Cretaceous elsewhere. These new data and their interpretations indicate that the type section of the Nuka Formation is inadequate. The standard for the Nuka Formation is therefore referred to a newly measured section of the middle arkosic unit of the old section.","language":"English","publisher":"American Association of Petroleum Geologists","publisherLocation":"Tulsa, OK","doi":"10.1306/83D90EBC-16C7-11D7-8645000102C1865D","usgsCitation":"Tailleur, I., Mamet, B.L., and Dutro, J., 1973, Revised age and structural interpretations of Nuka Formation at Nuka Ridge, northwestern Alaska: Geologic notes: American Association of Petroleum Geologists Bulletin, v. 57, no. 7, p. 1348-1352, https://doi.org/10.1306/83D90EBC-16C7-11D7-8645000102C1865D.","productDescription":"5 p.","startPage":"1348","endPage":"1352","costCenters":[{"id":499,"text":"Office of National Petroleum Reserve in Alaska","active":false,"usgs":true}],"links":[{"id":265702,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Nuka Ridge","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -159.81888947497808,\n 68.72624503225839\n ],\n [\n -159.81888947497808,\n 68.23007744142308\n ],\n [\n -158.38069909853127,\n 68.23007744142308\n ],\n [\n -158.38069909853127,\n 68.72624503225839\n ],\n [\n -159.81888947497808,\n 68.72624503225839\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"57","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50f53710e4b0114312ab0241","contributors":{"authors":[{"text":"Tailleur, I.L.","contributorId":59027,"corporation":false,"usgs":true,"family":"Tailleur","given":"I.L.","email":"","affiliations":[],"preferred":false,"id":471940,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mamet, B. L.","contributorId":12886,"corporation":false,"usgs":true,"family":"Mamet","given":"B.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":471939,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dutro, J.T. Jr.","contributorId":8432,"corporation":false,"usgs":true,"family":"Dutro","given":"J.T.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":471941,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70042619,"text":"70042619 - 1973 - Probable rift origin of Canada Basin, Arctic Ocean","interactions":[{"subject":{"id":16202,"text":"ofr73274 - 1973 - Probable rift origin of the Canada basin, Arctic Ocean","indexId":"ofr73274","publicationYear":"1973","noYear":false,"title":"Probable rift origin of the Canada basin, Arctic Ocean"},"predicate":"SUPERSEDED_BY","object":{"id":70042619,"text":"70042619 - 1973 - Probable rift origin of Canada Basin, Arctic Ocean","indexId":"70042619","publicationYear":"1973","noYear":false,"title":"Probable rift origin of Canada Basin, Arctic Ocean"},"id":1}],"lastModifiedDate":"2013-01-29T09:57:48","indexId":"70042619","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"1973","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesNumber":"19","title":"Probable rift origin of Canada Basin, Arctic Ocean","docAbstract":"Formation of the Canada basin by post-Triassic rifting seems the most workable and logical hypothesis on the basis of available information. Speculated counterclockwise rotation of the Alaska-Chukchi continental edge best rationalizes the complex geology of northern Alaska, whereas the assumption that a single continental block was present before the Jurassic makes the best palinspastic fit for Arctic America. The Arctic Ocean is the focus of present-day spreading and probably was the focus of earlier stages of spreading in which spread of the Canada basin would have been an initial stage. Spread of the Canada basin is probable if the Atlantic formed by sea-floor spreading, because analogies between the Arctic and Atlantic edges indicate a common origin for the ocean basins. Late Cretaceous and younger deflections of the Cordillera in the Arctic and diabasic emplacements in the northern Arctic Islands may reflect later stages of spreading. Pre-Mesozoic plate tectonism may be represented by the widespread Proterozoic diabasic emplacements in the Canadian Arctic and by the Franklinian-lnnuitian tract, where the volcanogenic rocks and deformation resulted not from a classical eugeosyncline-miogeosyncline couple, but from the junction of a mid-Paleozoic continental edge and another plate on closure of a pre-Arctic Ocean.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Arctic geology: proceedings of the Second International Symposium on Arctic Geology (AAPG Memoir 19)","largerWorkSubtype":{"id":3,"text":"Organization Series"},"language":"English","publisher":"AAPG","publisherLocation":"Tulsa, OK","usgsCitation":"Tailleur, I.L., 1973, Probable rift origin of Canada Basin, Arctic Ocean, chap. of Arctic geology: proceedings of the Second International Symposium on Arctic Geology (AAPG Memoir 19), p. 526-535.","productDescription":"10 p.; maps","startPage":"526","endPage":"535","costCenters":[{"id":499,"text":"Office of National Petroleum Reserve in Alaska","active":false,"usgs":true}],"links":[{"id":265699,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":265698,"type":{"id":15,"text":"Index Page"},"url":"https://archives.datapages.com/data/specpubs/history3/data/a108/a108/0001/0500/0526.htm"}],"otherGeospatial":"Canada Basin;Arctic Ocean","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,69.9 ], [ -180.0,90.0 ], [ 180.0,90.0 ], [ 180.0,69.9 ], [ -180.0,69.9 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50f5370ee4b0114312ab023a","contributors":{"authors":[{"text":"Tailleur, Irvin L.","contributorId":105304,"corporation":false,"usgs":true,"family":"Tailleur","given":"Irvin","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":471936,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70001345,"text":"70001345 - 1973 - Recurrence of seismic migrations along the central California segment of the San Andreas fault system","interactions":[],"lastModifiedDate":"2020-12-23T21:57:35.031797","indexId":"70001345","displayToPublicDate":"2010-09-28T23:09:33","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Recurrence of seismic migrations along the central California segment of the San Andreas fault system","docAbstract":"VERIFICATIONS of tectonic concepts1 concerning seafloor spreading are emerging in a manner that has direct bearing on earthquake prediction. Although the gross pattern of worldwide seismicity contributed to the formulation of the plate tectonic hypothesis, it is the space-time characteristics of this seismicity that may contribute more toward understanding the kinematics and dynamics of the driving mechanism long speculated to originate in the mantle. If the lithosphere is composed of plates that move essentially as rigid bodies, then there should be seismic edge effects associated with this movement. It is these interplate effects, especially seismic migration patterns, that we discuss here. The unidirectional propagation at constant velocity (80 km yr−1 east to west) for earthquakes (M≥7.2) on the Antblian fault for the period 1939 to 1956 (ref. 2) is one of the earliest observations of such a phenomenon. Similar studies3,4 of the Alaska Aleutian seismic zone and certain regions of the west coast of South America suggest unidirectional and recurring migrations of earthquakes (M≥7.7) occur in these areas. Between these two regions along the great transform faults of the west coast of North America, there is some evidence5 for unidirectional, constant velocity and recurrent migration of great earthquakes. The small population of earthquakes (M>7.2) in Savage's investigation5 indicates a large spatial gap along the San Andreas system in central California from 1830 to 1970. Previous work on the seismicity of this gap in central California indicates that the recurrence curves remain relatively constant, independent of large earthquakes, for periods up to a century6. Recurrence intervals for earthquakes along the San Andreas Fault have been calculated empirically by Wallace7 on the basis of geological evidence, surface measurements and assumptions restricted to the surficial seismic layer. Here we examine the evidence for recurrence of seismic migrations along the San Andreas fault system of central California for earthquakes of magnitude M≥5.
This paper attempts to relate current knowledge of sea-level history in Beringia to the Broecker-van Donk “Termination” concept of climatic and sea-level history. The Einahnuhtan transgression is thought to represent Termination III, which according to Broecker and van Donk, took place about 225,000 y.a. The Kotzebuan transgression is thought to represent a positive fluctuation that modulated the generally falling sea level during the ensuing 100,000 yr. Sea level probably fell to about −135 m in the Bering Sea area during the maximum phase of the penultimate glaciation. The two Pelukian shorelines probably represent Termination II (about 125,000 yr BP in the Broecker-van Donk chronology) and one of the two positive fluctuations that modulated the generally falling sea level of early Wisconsinan time, about 105,000 and 80,000 y.a. according to Broecker and van Donk. Another positive modulation brought sea level to at least −20 m, about 30,000 y.a. Sea level evidently fell to between −90 and −100 m during the late Wisconsinan regression, but a substantial part of the outer Bering shelf remained submerged. Submerged shoreline features at −38m, −30 m, −24 to −20 m, and −12 to −10 m represent stillstands or slight regressions that modulated Termination I, the late Wisconsinan, and early Holocene recovery of sea level.
No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf531","usgsCitation":"1973, Geologic map of the Cordova A-7 and A-8, B-6, B-7, and B-8 quadrangles, Hinchinbrook Island, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 531, 1 Plate: 39.99 x 31.84 inches, https://doi.org/10.3133/mf531.","productDescription":"1 Plate: 39.99 x 31.84 inches","costCenters":[],"links":[{"id":186783,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0531/report-thumb.jpg"},{"id":398494,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_3629.htm"},{"id":415273,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0531/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"63360","country":"United States","state":"Alaska","otherGeospatial":"Cordova A-7 and A-8, B-6, B-7, and B-8 quadrangles, Hinchinbrook Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -147,\n 60.25\n ],\n [\n -145.875,\n 60.25\n ],\n [\n -145.875,\n 60.5\n ],\n [\n -147,\n 60.5\n ],\n [\n -147,\n 60.25\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b09e4b07f02db69c7d5","contributors":{"compilers":[{"text":"Winkler, G.R.","contributorId":49656,"corporation":false,"usgs":true,"family":"Winkler","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":868585,"contributorType":{"id":3,"text":"Compilers"},"rank":1}]}} ,{"id":62141,"text":"gq1062 - 1973 - Geologic map of the Nabesna C-5 quadrangle, Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:10:31","indexId":"gq1062","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1973","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":316,"text":"Geologic Quadrangle","code":"GQ","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1062","title":"Geologic map of the Nabesna C-5 quadrangle, Alaska","language":"ENGLISH","doi":"10.3133/gq1062","usgsCitation":"Richter, D.H., and Schmoll, H.R., 1973, Geologic map of the Nabesna C-5 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle 1062, 1 map., https://doi.org/10.3133/gq1062.","productDescription":"1 map.","costCenters":[],"links":[{"id":107506,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_10607.htm","linkFileType":{"id":5,"text":"html"},"description":"10607"},{"id":248334,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/gq/1062/report.pdf","size":"76","linkFileType":{"id":1,"text":"pdf"}},{"id":253228,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/gq/1062/report-thumb.jpg"}],"scale":"63360","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -143.5,62.5 ], [ -143.5,62.75 ], [ -143,62.75 ], [ -143,62.5 ], [ -143.5,62.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afbe4b07f02db69638f","contributors":{"authors":[{"text":"Richter, Donald H.","contributorId":61021,"corporation":false,"usgs":true,"family":"Richter","given":"Donald","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":266978,"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":266977,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61276,"text":"mf502 - 1973 - Preliminary geologic map of a prospective transportation route from Prudhoe Bay, Alaska, to Canadian border, part V, Coleen Quadrangle (north half), Alaska","interactions":[],"lastModifiedDate":"2023-04-05T16:30:14.990942","indexId":"mf502","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1973","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":"502","title":"Preliminary geologic map of a prospective transportation route from Prudhoe Bay, Alaska, to Canadian border, part V, Coleen Quadrangle (north half), Alaska","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf502","usgsCitation":"1973, Preliminary geologic map of a prospective transportation route from Prudhoe Bay, Alaska, to Canadian border, part V, Coleen Quadrangle (north half), Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 502, 2 Plates: 43.51 x 22.08 inches and 19.19 x 24.73 inches, https://doi.org/10.3133/mf502.","productDescription":"2 Plates: 43.51 x 22.08 inches and 19.19 x 24.73 inches","costCenters":[],"links":[{"id":415248,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0502/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":415247,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0502/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":408937,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_2948.htm","linkFileType":{"id":5,"text":"html"}},{"id":180626,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0502/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Coleen Quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -144,\n 68.8\n ],\n [\n -144,\n 68\n ],\n [\n -141,\n 68\n ],\n [\n -141,\n 68.8\n ],\n [\n -144,\n 68.8\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db69924f","contributors":{"compilers":[{"text":"Yeend, Warren","contributorId":20405,"corporation":false,"usgs":true,"family":"Yeend","given":"Warren","affiliations":[],"preferred":false,"id":868584,"contributorType":{"id":3,"text":"Compilers"},"rank":1}]}} ,{"id":66946,"text":"i807 - 1973 - Reconnaissance geologic map of the Nabesna A-1 Quadrangle, Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:11:04","indexId":"i807","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1973","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"807","subseriesTitle":"NONE","title":"Reconnaissance geologic map of the Nabesna A-1 Quadrangle, Alaska","language":"ENGLISH","doi":"10.3133/i807","usgsCitation":"Richter, D., Matson, N., and Schmoll, H., 1973, Reconnaissance geologic map of the Nabesna A-1 Quadrangle, Alaska: U.S. Geological Survey IMAP 807, 1 map., https://doi.org/10.3133/i807.","productDescription":"1 map.","costCenters":[],"links":[{"id":106984,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_9639.htm","linkFileType":{"id":5,"text":"html"},"description":"9639"},{"id":188924,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"63360","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -141.5,62 ], [ -141.5,62.25 ], [ -141,62.25 ], [ -141,62 ], [ -141.5,62 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a70e4b07f02db641a60","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":275348,"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":275350,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schmoll, H. R.","contributorId":71543,"corporation":false,"usgs":true,"family":"Schmoll","given":"H. R.","affiliations":[],"preferred":false,"id":275349,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":61275,"text":"mf489 - 1973 - Preliminary geologic map of a prospective transportation route from Prudhoe Bay, Alaska to Canadian border, Part I, Beechey Point and Sagavanirktok quadrangles","interactions":[],"lastModifiedDate":"2023-04-05T18:13:20.404748","indexId":"mf489","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1973","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":"489","title":"Preliminary geologic map of a prospective transportation route from Prudhoe Bay, Alaska to Canadian border, Part I, Beechey Point and Sagavanirktok quadrangles","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf489","usgsCitation":"1973, Preliminary geologic map of a prospective transportation route from Prudhoe Bay, Alaska to Canadian border, Part I, Beechey Point and Sagavanirktok quadrangles: U.S. Geological Survey Miscellaneous Field Studies Map 489, 2 Plates: 23.29 x 35.04 inches and 19.48 x 15.79 inches, https://doi.org/10.3133/mf489.","productDescription":"2 Plates: 23.29 x 35.04 inches and 19.48 x 15.79 inches","costCenters":[],"links":[{"id":415260,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0489/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":415259,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0489/plate-2.pdf"},{"id":180625,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0489/report-thumb.jpg"},{"id":410008,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_2932.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Beechey Point and Sagavanirktok quadrangles","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -148.5,\n 69.6233\n ],\n [\n -148.5,\n 70.3583\n ],\n [\n -147,\n 70.3583\n ],\n [\n -147,\n 69.6233\n ],\n [\n -148.5,\n 69.6233\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67bf0a","contributors":{"compilers":[{"text":"Yeend, Warren","contributorId":20405,"corporation":false,"usgs":true,"family":"Yeend","given":"Warren","affiliations":[],"preferred":false,"id":868581,"contributorType":{"id":3,"text":"Compilers"},"rank":1}]}} ]}