{"pageNumber":"396","pageRowStart":"9875","pageSize":"25","recordCount":11370,"records":[{"id":12766,"text":"ofr6923 - 1969 - Minor element content of stream-sediment and bedrock samples from southeastern Douglas Island, southeastern Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:06:33","indexId":"ofr6923","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","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":"69-23","title":"Minor element content of stream-sediment and bedrock samples from southeastern Douglas Island, southeastern Alaska","language":"ENGLISH","publisher":"U.S. Geological Survey],","doi":"10.3133/ofr6923","usgsCitation":"Brew, D.A., and Ford, A., 1969, Minor element content of stream-sediment and bedrock samples from southeastern Douglas Island, southeastern Alaska: U.S. Geological Survey Open-File Report 69-23, 4 p. ill., 2 maps ;27 cm., https://doi.org/10.3133/ofr6923.","productDescription":"4 p. ill., 2 maps ;27 cm.","costCenters":[],"links":[{"id":144855,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1969/0023/report-thumb.jpg"},{"id":41160,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0023/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":41161,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0023/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":41162,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0023/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":41163,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0023/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":41164,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1969/0023/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699c60","contributors":{"authors":[{"text":"Brew, David A. dbrew@usgs.gov","contributorId":3244,"corporation":false,"usgs":true,"family":"Brew","given":"David","email":"dbrew@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":166673,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ford, Arthur B.","contributorId":52578,"corporation":false,"usgs":true,"family":"Ford","given":"Arthur B.","affiliations":[],"preferred":false,"id":166674,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":17964,"text":"ofr699 - 1969 - Preliminary geologic interpretation of aeromagnetic data in the Nixon Fork district, Alaska","interactions":[{"subject":{"id":17964,"text":"ofr699 - 1969 - Preliminary geologic interpretation of aeromagnetic data in the Nixon Fork district, Alaska","indexId":"ofr699","publicationYear":"1969","noYear":false,"title":"Preliminary geologic interpretation of aeromagnetic data in the Nixon Fork district, Alaska"},"predicate":"SUPERSEDED_BY","object":{"id":39568,"text":"pp700D - 1970 - Geological Survey research 1970, Chapter D","indexId":"pp700D","publicationYear":"1970","noYear":false,"chapter":"D","title":"Geological Survey research 1970, Chapter D"},"id":1}],"supersededBy":{"id":39568,"text":"pp700D - 1970 - Geological Survey research 1970, Chapter D","indexId":"pp700D","publicationYear":"1970","noYear":false,"title":"Geological Survey research 1970, Chapter D"},"lastModifiedDate":"2024-01-17T19:39:16.691625","indexId":"ofr699","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","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":"69-9","title":"Preliminary geologic interpretation of aeromagnetic data in the Nixon Fork district, Alaska","docAbstract":"<p>An aeromagnetic map covering 480 square miles was compiled for the Nixon Fork district, which is located approximately 35 miles northeast of McGrath, Alaska. The survey was flown in search of concealed intrusive rocks which may have produced contact metamorphic deposits in limestone similar to the known lode deposits which have been the principal source of gold in the district.</p><p>The exposed quartz monzonite stocks with which the lode deposits are associated produce negative magnetic anomalies. Slight to moderately strong positive anomalies correlate with granitic intrusives in contact with Upper Cretaceous rocks in the Iditarod-Nixon Fork fault zone. No significant mineral deposits have been found in conjunction with these granitic bodies.</p><p>Positive anomalies, delineating buried intrusives, occur near the east and west boundaries of the mapped area. The nature of the westernmost intrusive is unknown.</p><p>An area of possible economic interest lies between Limestone Mountain and Whirlwind-Canyon Creeks in the eastern sector of the mapped area. An elliptical positive anomaly is superimposed on an elongate, slightly negative anomaly. This negative anomaly may represent an intrusive similar to the quartz monzonite with which the lode deposits are affiliated. The positive anomaly may be a near-vertical mafic dike intruded to within 50 feet of the surface of a limestone ridge. Limestone in the vicinity of the dike may be a favorable area for prospecting for lode deposits similar to the known gold-producing deposits of the district.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr699","usgsCitation":"Anderson, L.A., Reed, B.L., and Johnson, G.R., 1969, Preliminary geologic interpretation of aeromagnetic data in the Nixon Fork district, Alaska: U.S. Geological Survey Open-File Report 69-9, Report: ii, 6 p.; 1 Plate: 40.63 x 31.55 inches, https://doi.org/10.3133/ofr699.","productDescription":"Report: ii, 6 p.; 1 Plate: 40.63 x 31.55 inches","costCenters":[],"links":[{"id":149186,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1969/0009/report-thumb.jpg"},{"id":424516,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0009/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":424515,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1969/0009/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Nixon Fork district","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -156.21098975436422,\n              64.39363688486736\n            ],\n            [\n              -156.0545619009912,\n              64.39363688486736\n            ],\n            [\n              -156.0545619009912,\n              64.40237470471484\n            ],\n            [\n              -156.21098975436422,\n              64.40237470471484\n            ],\n            [\n              -156.21098975436422,\n              64.39363688486736\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -158.14993847514128,\n              64.4117874414261\n            ],\n            [\n              -158.14993847514128,\n              63.40759602117143\n            ],\n            [\n              -150.94307945964977,\n              63.40759602117143\n            ],\n            [\n              -150.94307945964977,\n              64.4117874414261\n            ],\n            [\n              -158.14993847514128,\n              64.4117874414261\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c2e1","contributors":{"authors":[{"text":"Anderson, Lennart A.","contributorId":106111,"corporation":false,"usgs":true,"family":"Anderson","given":"Lennart","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":178293,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reed, Bruce L.","contributorId":19928,"corporation":false,"usgs":true,"family":"Reed","given":"Bruce","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":178294,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, Gordon R.","contributorId":90725,"corporation":false,"usgs":true,"family":"Johnson","given":"Gordon","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":178295,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":15427,"text":"ofr69206 - 1969 - Preliminary investigation of gold mineralization in the Pedro Dome-Cleary Summit area, Fairbanks district, Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:07:08","indexId":"ofr69206","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","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":"69-206","title":"Preliminary investigation of gold mineralization in the Pedro Dome-Cleary Summit area, Fairbanks district, Alaska","docAbstract":"Anomalous gold values in mineralized veins and hydrothermally altered quartz-mica schist in the Pedro Dome-Cleary Summit area of the Fairbanks district suggest the presence of numerous small low- to high-grade lodes. Anomalous concentrations of gold were found to exist in the wall rocks adjacent to mineralized veins. In general, the gold concentration gradients in these wall rocks are much too steep to increase appreciably the mineable width of the veins. Anomalous gold values were also detected in bedrock samples taken by means of a power auger on the Murphy Dome Road along the southwest extension of the Pedro Dome-Cleary Summit mineralized belt.","language":"ENGLISH","publisher":"University of Alaska,","doi":"10.3133/ofr69206","usgsCitation":"Pilkington, H., Forbes, R.B., Hawkins, D.B., Chapman, R.M., and Swainbank, R.C., 1969, Preliminary investigation of gold mineralization in the Pedro Dome-Cleary Summit area, Fairbanks district, Alaska: U.S. Geological Survey Open-File Report 69-206, 47 p. ill., map ;27 cm., https://doi.org/10.3133/ofr69206.","productDescription":"47 p. ill., map ;27 cm.","costCenters":[],"links":[{"id":148633,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1969/0206/report-thumb.jpg"},{"id":44381,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0206/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":44382,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1969/0206/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abce4b07f02db67323c","contributors":{"authors":[{"text":"Pilkington, H.D.","contributorId":77942,"corporation":false,"usgs":true,"family":"Pilkington","given":"H.D.","email":"","affiliations":[],"preferred":false,"id":171125,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Forbes, R. B.","contributorId":12848,"corporation":false,"usgs":true,"family":"Forbes","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":171122,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hawkins, D. B.","contributorId":43366,"corporation":false,"usgs":true,"family":"Hawkins","given":"D.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":171123,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chapman, R. M.","contributorId":47380,"corporation":false,"usgs":true,"family":"Chapman","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":171124,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Swainbank, R. C.","contributorId":96707,"corporation":false,"usgs":false,"family":"Swainbank","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":171126,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":13063,"text":"ofr6945 - 1969 - Metallic mineral resources map of the Cordova quadrangle, Alaska","interactions":[{"subject":{"id":13063,"text":"ofr6945 - 1969 - Metallic mineral resources map of the Cordova quadrangle, Alaska","indexId":"ofr6945","publicationYear":"1969","noYear":false,"title":"Metallic mineral resources map of the Cordova quadrangle, Alaska"},"predicate":"SUPERSEDED_BY","object":{"id":59194,"text":"mf392 - 1972 - Metallic mineral resources map of the Cordova Quadrangle, Alaska","indexId":"mf392","publicationYear":"1972","noYear":false,"title":"Metallic mineral resources map of the Cordova Quadrangle, Alaska"},"id":1}],"supersededBy":{"id":59194,"text":"mf392 - 1972 - Metallic mineral resources map of the Cordova Quadrangle, Alaska","indexId":"mf392","publicationYear":"1972","noYear":false,"title":"Metallic mineral resources map of the Cordova Quadrangle, 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,{"id":32678,"text":"pp543H - 1969 - Erosion and deposition on a beach raised by the 1964 earthquake Montague Island, Alaska","interactions":[{"subject":{"id":32678,"text":"pp543H - 1969 - Erosion and deposition on a beach raised by the 1964 earthquake Montague Island, Alaska","indexId":"pp543H","publicationYear":"1969","noYear":false,"chapter":"H","title":"Erosion and deposition on a beach raised by the 1964 earthquake Montague Island, Alaska"},"predicate":"IS_PART_OF","object":{"id":70048225,"text":"pp543 - 1966 - The Alaska earthquake, March 27, 1964: regional effects","indexId":"pp543","publicationYear":"1966","noYear":false,"title":"The Alaska earthquake, March 27, 1964: regional effects"},"id":1}],"isPartOf":{"id":70048225,"text":"pp543 - 1966 - The Alaska earthquake, March 27, 1964: regional effects","indexId":"pp543","publicationYear":"1966","noYear":false,"title":"The Alaska earthquake, March 27, 1964: regional effects"},"lastModifiedDate":"2022-02-16T20:17:09.532739","indexId":"pp543H","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"543","chapter":"H","title":"Erosion and deposition on a beach raised by the 1964 earthquake Montague Island, Alaska","docAbstract":"During the 1964 Alaska earthquake, tectonic deformation uplifted the southern end of Montague Island as much as 33 feet or more. The uplifted shoreline is rapidly being modified by subaerial and marine processes. The new raised beach is formed in bedrock, sand, gravel, and deltaic bay-head deposits, and the effect of each erosional process was measured in each material. Fieldwork was concentrated in two areas—MacLeod Harbor on the northwest side and Patton Bay on the southeast side of Montague Island. In the unconsolidated deltaic deposits of MacLeod Harbor, 97 percent of the erosion up to June 1965, 15 months after the earthquake, was fluvial, 2.2 percent was by rainwash, and only 0.8 percent was marine; 52 percent of the total available raised beach material had already been removed. The volume removed by stream erosion was proportional to low-flow discharge raised to the power of 0.75 to 0.95, and this volume increased as the bed material became finer. Stream response to the relative fall in base level was very rapid, most of the downcutting in unconsolidated materials occurring within 48 hours of the uplift for streams with low flows greater than 10 cubic feet per second. Since then, erosion by these streams has been predominantly lateral. Streams with lower discharges, in unconsolidated materials, still had knickpoints after 15 months. No response to uplift could be detected in stream courses above the former preearthquake sea level.\n\nWhere the raised beach is in bedrock, it is being destroyed principally by marine action but at such a low rate that no appreciable erosion of bedrock was found 15 months after the earthquake. A dated rock platform raised earlier has eroded at a mean rate of 0.49 foot per year. In this area the factor limiting the rate of erosion was rock resistance rather than the transporting capacity of the waves.\n\nThe break in slope between the top of the raised beach and the former seacliff is being obliterated by debris which is accumulating at the base of the cliffs and which is no longer being removed by the sea. Current cliff retreat by rockfall, mudflows, and landslides was estimated at 0.7 to 2.0 feet per year, and in parts of Patton Bay the accumulation of debris has obliterated 78 percent of the original break in slope in 15 months.\n\nEvidence of two relative sea-level changes before 1964 was found in Patton Bay. At a high stand of sea level lasting until about 2000 B.P. (before present), an older raised beach was formed which, over a distance of 5 miles, shows 40 feet of deformation relative to the present sea level. Peat deposits exposed by the 1964 uplift also record a low sea level that lasted until at least 600 B.P.\n\nThe 1964 raised beach was used to test the accuracy of identification of former sea-level elevations from raised beach features. The Pre-1964 sea level could be accurately determined from the height of the former barnacle line, so an independent check on high-water level was available. The most reliable topographic indicator was the elevation of the break in slope at the top of a beach between a bedrock platform and a cliff. Even here, the former sea level could only be identified within 5 feet. The breaks in slope at the top of gravel beaches were found to be poor indicators of former sea level.\n\nOn Montague Island, evidence of former high sea levels appeared to be best preserved (1) as raised bedrock platforms on rocks of moderate resistance in slightly sheltered locations and (2) as raised storm beaches where the relief immediately inland was very low.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"The Alaska earthquake,  March 27, 1964: regional effects (Professional Paper 543)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Government Printing Office","publisherLocation":"Washington, D.C.","doi":"10.3133/pp543H","usgsCitation":"Kirkby, M.J., and Kirkby, A.V., 1969, Erosion and deposition on a beach raised by the 1964 earthquake Montague Island, Alaska: U.S. Geological Survey Professional Paper 543, vi, 41 p., https://doi.org/10.3133/pp543H.","productDescription":"vi, 41 p.","numberOfPages":"49","costCenters":[{"id":380,"text":"Menlo ParkCalif. 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,{"id":13100,"text":"ofr6946 - 1969 - Metallic mineral resources maps of eleven Alaska quadrangles","interactions":[],"lastModifiedDate":"2024-12-02T20:08:49.544691","indexId":"ofr6946","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","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":"69-46","title":"Metallic mineral resources maps of eleven Alaska quadrangles","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr6946","usgsCitation":"1969, Metallic mineral resources maps of eleven Alaska quadrangles: U.S. Geological Survey Open-File Report 69-46, 20 p., https://doi.org/10.3133/ofr6946.","productDescription":"20 p.","costCenters":[],"links":[{"id":427860,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1969/0046/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":409067,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8439.htm","text":"Afognak quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":144514,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1969/0046/report-thumb.jpg"},{"id":464649,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8440.htm","text":"Beaver quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464650,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8441.htm","text":"Bering Glacier quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464651,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8442.htm","text":"Bettles quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464652,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8443.htm","text":"Karluk quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464653,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8444.htm","text":"Kenai quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464654,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8445.htm","text":"Middleton Island quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464655,"rank":10,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8446.htm","text":"Taylor Mountains quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464656,"rank":11,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8447.htm","text":"Trinity Mountains quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464657,"rank":12,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8448.htm","text":"Tyonek quadrangle","linkFileType":{"id":5,"text":"html"}},{"id":464658,"rank":13,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8449.htm","text":"Yakutat quadrangle","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Afognak quadrangle, Beaver quadrangle, Bering Glacier quadrangle, Bettles quadrangle, Karluk quadrangle, Kenai quadrangle, Middleton Island quadrangle, Taylor Mountains quadrangle, Trinity Islands quadrangle, Tyonek quadrangle, Yakutat quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -156.3028375596715,\n              66.8747817249722\n            ],\n            [\n              -156.3028375596715,\n              57\n            ],\n            [\n              -137.94511288777548,\n              57\n            ],\n            [\n              -137.94511288777548,\n              66.8747817249722\n            ],\n            [\n              -156.3028375596715,\n              66.8747817249722\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd66b7e4b0b29085100f2e","contributors":{"compilers":[{"text":"Cobb, Edward Huntington","contributorId":25916,"corporation":false,"usgs":true,"family":"Cobb","given":"Edward","email":"","middleInitial":"Huntington","affiliations":[],"preferred":false,"id":899032,"contributorType":{"id":3,"text":"Compilers"},"rank":1}]}}
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,{"id":34426,"text":"b1271G - 1969 - Reconnaissance geology of the Eagle A-1 and A-2 quadrangles, Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:09:21","indexId":"b1271G","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","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":"1271","chapter":"G","title":"Reconnaissance geology of the Eagle A-1 and A-2 quadrangles, Alaska","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/b1271G","usgsCitation":"Foster, H.L., 1969, Reconnaissance geology of the Eagle A-1 and A-2 quadrangles, Alaska: U.S. Geological Survey Bulletin 1271, p. G1-G30, illus., maps (1 fold. col. in pocket) ;24 cm., https://doi.org/10.3133/b1271G.","productDescription":"p. G1-G30, illus., maps (1 fold. col. in pocket) ;24 cm.","costCenters":[],"links":[{"id":109685,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_21365.htm","linkFileType":{"id":5,"text":"html"},"description":"21365"},{"id":163936,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1271g/report-thumb.jpg"},{"id":62361,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1271g/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":62362,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1271g/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6fe4b07f02db640f9f","contributors":{"authors":[{"text":"Foster, Helen Laura","contributorId":21936,"corporation":false,"usgs":true,"family":"Foster","given":"Helen","email":"","middleInitial":"Laura","affiliations":[],"preferred":false,"id":212955,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":35708,"text":"b1287 - 1969 - Geology and ore deposits of the Central York Mountains, western Seward Peninsula, Alaska","interactions":[{"subject":{"id":15761,"text":"ofr65142 - 1965 - Geology and ore deposits of the central York Mountains, western Seward Peninsula, Alaska","indexId":"ofr65142","publicationYear":"1965","noYear":false,"title":"Geology and ore deposits of the central York Mountains, western Seward Peninsula, Alaska"},"predicate":"SUPERSEDED_BY","object":{"id":35708,"text":"b1287 - 1969 - Geology and ore deposits of the Central York Mountains, western Seward Peninsula, Alaska","indexId":"b1287","publicationYear":"1969","noYear":false,"title":"Geology and ore deposits of the Central York Mountains, western Seward Peninsula, Alaska"},"id":1}],"lastModifiedDate":"2012-02-02T00:09:36","indexId":"b1287","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","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":"1287","title":"Geology and ore deposits of the Central York Mountains, western Seward Peninsula, Alaska","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/b1287","usgsCitation":"Sainsbury, C., 1969, Geology and ore deposits of the Central York Mountains, western Seward Peninsula, Alaska: U.S. Geological Survey Bulletin 1287, 101 p, https://doi.org/10.3133/b1287.","productDescription":"101 p","costCenters":[],"links":[{"id":93525,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1287/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":93526,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1287/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":93527,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1287/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":93528,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1287/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":93529,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1287/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":93530,"rank":405,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1287/plate-6.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":93531,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1287/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":109691,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_21384.htm","linkFileType":{"id":5,"text":"html"},"description":"21384"},{"id":166074,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1287/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db6845b5","contributors":{"authors":[{"text":"Sainsbury, C.L.","contributorId":99968,"corporation":false,"usgs":true,"family":"Sainsbury","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":215092,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":38817,"text":"pp543I - 1969 - Tectonics of the March 27, 1964, Alaska earthquake","interactions":[{"subject":{"id":38817,"text":"pp543I - 1969 - Tectonics of the March 27, 1964, Alaska earthquake","indexId":"pp543I","publicationYear":"1969","noYear":false,"chapter":"I","title":"Tectonics of the March 27, 1964, Alaska earthquake"},"predicate":"IS_PART_OF","object":{"id":70048225,"text":"pp543 - 1966 - The Alaska earthquake, March 27, 1964: regional effects","indexId":"pp543","publicationYear":"1966","noYear":false,"title":"The Alaska earthquake, March 27, 1964: regional effects"},"id":1}],"isPartOf":{"id":70048225,"text":"pp543 - 1966 - The Alaska earthquake, March 27, 1964: regional effects","indexId":"pp543","publicationYear":"1966","noYear":false,"title":"The Alaska earthquake, March 27, 1964: regional effects"},"lastModifiedDate":"2022-06-28T18:18:07.763935","indexId":"pp543I","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1969","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"543","chapter":"I","title":"Tectonics of the March 27, 1964, Alaska earthquake","docAbstract":"The March 27, 1964, earthquake was accomp anied by crustal deformation-including warping, horizontal distortion, and faulting-over probably more than 110,000 square miles of land and sea bottom in south-central Alaska. Regional uplift and subsidence occurred mainly in two nearly parallel elongate zones, together about 600 miles long and as much as 250 miles wide, that lie along the continental margin. From the earthquake epicenter in northern Prince William Sound, the deformation extends eastward 190 miles almost to long 142° and southwestward slightly more than 400 miles to about long 155°. It extends across the two zones from the chain of active volcanoes in the Aleutian Range and Wrangell Mountains probably to the Aleutian Trench axis.\n\nUplift that averages 6 feet over broad areas occurred mainly along the coast of the Gulf of Alaska, on the adjacent Continental Shelf, and probably on the continental slope. This uplift attained a measured maximum on land of 38 feet in a northwest-trending narrow belt less than 10 miles wide that is exposed on Montague Island in southwestern Prince William Sound. Two earthquake faults exposed on Montague Island are subsidiary northwest-dipping reverse faults along which the northwest blocks were relatively displaced a maximum of 26 feet, and both blocks were upthrown relative to sea level. From Montague Island, the faults and related belt of maximum uplift may extend southwestward on the Continental Shelf to the vicinity of the Kodiak group of islands. To the north and northwest of the zone of uplift, subsidence forms a broad asymmetrical downwarp centered over the Kodiak-Kenai-Chugach Mountains that averages 2½ feet and attains a measured maximum of 7½ feet along the southwest coast of the Kenai Peninsula. Maximum indicated uplift in the Alaska and Aleutian Ranges to the north of the zone of subsidence was l½ feet. Retriangulation over roughly 25,000 square miles of the deformed region in and around Prince William Sound shows that vertical movements there were accompanied by horizontal distortion, involving systematic shifts of about 64 feet in a relative seaward direction. Comparable horizontal movements are presumed to have affected those parts of the major zones of uplift and subsidence for which retriangulation data are unavailable.\n\nRegional vertical deformation generated a train of destructive long-period seismic sea waves in the Gulf of Alaska as well as unique atmospheric and ionospheric disturbances that were recorded at points far distant from Alaska. Warping resulted in permanent tilt of larger lake basins and temporary reductions in discharge of some major rivers. Uplift and subsidence relative to sea level caused profound modifications in shoreline morphology with attendant catastrophic effects on the nearshore biota and costly damage to coasta1 installations. Systematic horizontal movements of the land relative to bodies of confined or semiconfined water may have caused unexplained short-period waves—some of which were highly destructive—observed during or immediately after the earthquake at certain coastal localities and in Kenai Lake. Porosity increases, probably related to horizontal displacements in the zone of subsidence, were reflected in lowered well-water levels and in losses of surface water.\n\nThe primary fault, or zone of faults, along which the earthquake occurred is not exposed at the surface on land. Focal-mechanism studies, when considered in conjunction with the pattern of deformation and seismicity, suggest that it was a complex thrust fault (megathrust) dipping at a gentle angle beneath the continental margin from the vicinity of the Aleutian Trench. Movement on the megathrust was accompanied by subsidiary reverse faulting, and perhaps wrench faulting, within the upper plate. Aftershock distribution suggests movement on a segment of the megathrust, some 550–600 miles long and 110–180 miles wide, that underlies most of the major zone of uplift and the seaward part of the major zone of subsidence.\n\nAccording to the postulated model, the observed and inferred tectonic displacements that accompanied the earthquake resulted primarily from (1) relative seaward displacement and uplift of the seaward part of the block by movement along the dipping megathrust and subsidiary faults that break through the upper plate to the surface, and (2) simultaneous elastic horizontal extension and vertical attenuation (subsidence) of the crustal slab behind the upper plate. Slight uplift inland from the major zones of deformation presumably was related to elastic strain changes resulting from the overthrusting; however, the data are insufficient to permit conclusions regarding its cause.\n\nThe belt of seismic activity and major zones of tectonic deformation associated with the 1964 earthquake, to a large extent, lie between and parallel to the Aleutian Volcanic Arc and the Aleutian Trench, and are probably genetically related to the arc. Geologic data indicate that the earthquake-related tectonic movements were but the most recent pulse in an episode of deformation that probably began in late Pleistocene time and has continued intermittently to the present. Evidence for progressive coastal submergence in the deformed region for several centuries preceding the earthquake, in combin1ation with transverse horizontal shortening indicated by the retriangulation data, suggests pre-earthquake strain directed at a gentle angle downward beneath the arc. The duration of strain accumulation in the epicentral region, as interpreted from the time interval during which the coastal submergence occurred, probably is 930–1,360 years.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"The Alaska earthquake, March 27, 1964: Regional effects (Professional Paper 543)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Government Printing Office","publisherLocation":"Washington, D.C.","doi":"10.3133/pp543I","usgsCitation":"Plafker, G., 1969, Tectonics of the March 27, 1964, Alaska earthquake: U.S. Geological Survey Professional Paper 543, Report: viii, 74 p.; 2 Plates: 27.08 x 21.87 inches and 16.09 x 20.66 inches, https://doi.org/10.3133/pp543I.","productDescription":"Report: viii, 74 p.; 2 Plates: 27.08 x 21.87 inches and 16.09 x 20.66 inches","numberOfPages":"88","costCenters":[{"id":380,"text":"Menlo ParkCalif. 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