{"pageNumber":"181","pageRowStart":"4500","pageSize":"25","recordCount":11364,"records":[{"id":53095,"text":"ofr03411 - 2003 - Preliminary hydrodynamic analysis of landslide-generated waves in Tidal Inlet, Glacier Bay National Park, Alaska","interactions":[],"lastModifiedDate":"2014-04-07T14:45:47","indexId":"ofr03411","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-411","title":"Preliminary hydrodynamic analysis of landslide-generated waves in Tidal Inlet, Glacier Bay National Park, Alaska","docAbstract":"A landslide block perched on the northern wall of Tidal Inlet, Glacier Bay National Park (Figure 1), has the potential to generate large waves in Tidal Inlet and the western arm of Glacier Bay if it were to fail catastrophically. Landslide-generated waves are a particular concern for cruise ships transiting through Glacier Bay on a daily basis during the summer months. The objective of this study is to estimate the range of wave amplitudes and periods in the western arm of Glacier Bay from a catastrophic landslide in Tidal Inlet. This study draws upon preliminary findings of a field survey by Wieczorek et al. (2003), and evaluates the effects of variations in landslide source parameters on the wave characteristics.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03411","usgsCitation":"Geist, E.L., Jakob, M., Wieczoreck, G.F., and Dartnell, P., 2003, Preliminary hydrodynamic analysis of landslide-generated waves in Tidal Inlet, Glacier Bay National Park, Alaska: U.S. Geological Survey Open-File Report 2003-411, 20 p., https://doi.org/10.3133/ofr03411.","productDescription":"20 p.","numberOfPages":"19","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":5290,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0411/","linkFileType":{"id":5,"text":"html"}},{"id":180987,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03411.jpg"},{"id":285868,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0411/pdf/of03-411.pdf"}],"country":"United States","state":"Alaska","otherGeospatial":"Glacier Bay National Park;Tidal Inlet","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -138.0,58.0 ], [ -138.0,59.0 ], [ -134.0,59.0 ], [ -134.0,58.0 ], [ -138.0,58.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abce4b07f02db67342d","contributors":{"authors":[{"text":"Geist, Eric L. 0000-0003-0611-1150 egeist@usgs.gov","orcid":"https://orcid.org/0000-0003-0611-1150","contributorId":1956,"corporation":false,"usgs":true,"family":"Geist","given":"Eric","email":"egeist@usgs.gov","middleInitial":"L.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":true,"id":246628,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jakob, Matthias","contributorId":82179,"corporation":false,"usgs":true,"family":"Jakob","given":"Matthias","email":"","affiliations":[],"preferred":false,"id":246631,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wieczoreck, Gerald F.","contributorId":7181,"corporation":false,"usgs":true,"family":"Wieczoreck","given":"Gerald","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":246630,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dartnell, Peter 0000-0002-9554-729X pdartnell@usgs.gov","orcid":"https://orcid.org/0000-0002-9554-729X","contributorId":2688,"corporation":false,"usgs":true,"family":"Dartnell","given":"Peter","email":"pdartnell@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":246629,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":51958,"text":"ofr2003118 - 2003 - Methodology and Results for the Assessment of Oil and Gas resources, National Petroleum Reserve, Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:11:31","indexId":"ofr2003118","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-118","title":"Methodology and Results for the Assessment of Oil and Gas resources, National Petroleum Reserve, Alaska","docAbstract":"Oil and gas resources in each of the 24 plays within the National Petroleum Reserve in Alaska (NPRA) were estimated using a play analysis. Assessors specified geologic attributes, risks, and number of prospects for each play. Some specifications established distributions, while others were given as single values. From this information, sizes of oil and gas accumulations were simulated using a Monte Carlo algorithm. The number of such accumulations considered in a given simulation run was obtained from the distribution of the number of prospects. Each prospect in each successful simulation run was risked. This process yielded size-frequency distributions and summary statistics for the various petroleum categories. Estimates of remaining resources from individual plays were then aggregated, and measures of uncertainty computed. Technically recoverable, undiscovered oil beneath the Federal part of NPRA likely ranges between 5.9 and 13.2 billion barrels, with a mean (expected) value of 9.3 billion barrels. Technically recoverable, undiscovered nonassociated natural gas for the same area likely ranges between 39.1 and 83.2 trillion cubic feet, with a mean (expected) value of 59.7 trillion cubic feet. Mean values of the corresponding associated dissolved gas and natural gas liquid are 10.3 trillion cubic feet and 1.4 billion barrels respectively.","language":"ENGLISH","publisher":"U.S. Geological Survey","doi":"10.3133/ofr2003118","usgsCitation":"Schuenemeyer, J.H., 2003, Methodology and Results for the Assessment of Oil and Gas resources, National Petroleum Reserve, Alaska: U.S. Geological Survey Open-File Report 2003-118, Report: 201 p.; 152 Tables, https://doi.org/10.3133/ofr2003118.","productDescription":"Report: 201 p.; 152 Tables","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":671,"text":"Western Region Geology and Geophysics Science Center","active":false,"usgs":true}],"links":[{"id":179166,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":13231,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/of03-118/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a51e4b07f02db629f8c","contributors":{"authors":[{"text":"Schuenemeyer, John H.","contributorId":54227,"corporation":false,"usgs":true,"family":"Schuenemeyer","given":"John","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":244541,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":69662,"text":"i2788 - 2003 - Geologic map of the Big Delta B-2 quadrangle, east-central Alaska","interactions":[],"lastModifiedDate":"2018-10-22T11:31:43","indexId":"i2788","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2788","title":"Geologic map of the Big Delta B-2 quadrangle, east-central Alaska","docAbstract":"      New 1:63,360-scale geologic mapping of the Big Delta B-2 quadrangle provides important data on the structural setting and age of geologic units, as well as on the timing of gold mineralization plutonism within the Yukon-Tanana Upland of east-central Alaska.  Gold exploration has remained active throughout the region in response to the discovery of the Pogo gold deposit, which lies within the northwestern part of the quadrangle near the south bank of the Goodpaster River.  Geologic mapping and associated geochronological and geochemical studies by the U.S. Geological Survey (USGS) and the Alaska Department of Natural Resources, Division of Mining and Water Management, provide baseline data to help understand the regional geologic framework.  Teck Cominco Limited geologists have provided the geologic mapping for the area that overlies the Pogo gold deposit as well as logistical support, which has lead to a much improved and informative product.\r\n The Yukon-Tanana Upland lies within the Tintina province in Alaska and consists of Paleozoic and possibly older(?) supracrustal rocks intruded by Paleozoic (Devonian to Mississippian) and Cretaceous plutons.  The oldest rocks in the Big Delta B-2 quadrangle are Paleozoic gneisses of both plutonic and sedimentary origin.  Paleozoic deformation, potentially associated with plutonism, was obscured by intense Mesozoic deformation and metamorphism.  At least some of the rocks in the quadrangle underwent tectonism during the Middle Jurassic (about 188 Ma), and were subsequently deformed in an Early Cretaceous contractional event between about 130 and 116 Ma.  New U-Pb SHRIMP data presented here on zircons from the Paleozoic biotite gneisses record inherited cores that range from 363 Ma to about 2,130 Ma and have rims of euhedral Early Cretaceous metamorphic overgrowths (116 +/- 4 Ma), interpreted to record recrystallization during Cretaceous west-northwest-directed thrusting and folding.  U-Pb SHRIMP dating of monazite from a Paleozoic gneiss sample yields an age of 112 +/- 2 Ma; the monazite presumably grew during the waning stages of the intense regional Cretaceous ductile deformation.  The Cretaceous ductile deformation was followed closely by granite plutonism and gold mineralization.  The main pulse of gold mineralization is temporally and spatially associated with the Cretaceous granitic dikes and plutons and occurred during regional uplift and extension.","language":"ENGLISH","doi":"10.3133/i2788","isbn":"0607900695","usgsCitation":"Day, W.C., Aleinikoff, J.N., Roberts, P., Smith, M., Gamble, B.M., Henning, M.W., Gough, L.P., and Morath, L.C., 2003, Geologic map of the Big Delta B-2 quadrangle, east-central Alaska: U.S. Geological Survey IMAP 2788, 1 map : col. ; 44 x 39 cm., on sheet 84 x 99 cm., folded in envelope 30 x 24 cm., https://doi.org/10.3133/i2788.","productDescription":"1 map : col. ; 44 x 39 cm., on sheet 84 x 99 cm., folded in envelope 30 x 24 cm.","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":187456,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110404,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54573.htm","linkFileType":{"id":5,"text":"html"},"description":"54573"},{"id":6334,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/2003/i-2788/","linkFileType":{"id":5,"text":"html"}}],"scale":"63360","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -145,64.25 ], [ -145,64.5 ], [ -144.5,64.5 ], [ -144.5,64.25 ], [ -145,64.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b0be4b07f02db69d972","contributors":{"authors":[{"text":"Day, Warren C. 0000-0002-9278-2120 wday@usgs.gov","orcid":"https://orcid.org/0000-0002-9278-2120","contributorId":1308,"corporation":false,"usgs":true,"family":"Day","given":"Warren","email":"wday@usgs.gov","middleInitial":"C.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":280829,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aleinikoff, John N. 0000-0003-3494-6841 jaleinikoff@usgs.gov","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":1478,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"John","email":"jaleinikoff@usgs.gov","middleInitial":"N.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":280830,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roberts, Paul","contributorId":54300,"corporation":false,"usgs":true,"family":"Roberts","given":"Paul","email":"","affiliations":[],"preferred":false,"id":280833,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, Moira","contributorId":17313,"corporation":false,"usgs":true,"family":"Smith","given":"Moira","affiliations":[],"preferred":false,"id":280831,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gamble, Bruce M. bgamble@usgs.gov","contributorId":560,"corporation":false,"usgs":true,"family":"Gamble","given":"Bruce","email":"bgamble@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":280827,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Henning, Mitchell W.","contributorId":48641,"corporation":false,"usgs":true,"family":"Henning","given":"Mitchell","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":280832,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gough, Larry P. lgough@usgs.gov","contributorId":1230,"corporation":false,"usgs":true,"family":"Gough","given":"Larry","email":"lgough@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":280828,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Morath, Laurie C.","contributorId":99225,"corporation":false,"usgs":true,"family":"Morath","given":"Laurie","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":280834,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70157058,"text":"70157058 - 2003 - Deformation of the 2002 Denali Fault earthquakes, mapped by Radarsat-1 interferometry","interactions":[],"lastModifiedDate":"2015-09-03T11:47:55","indexId":"70157058","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Deformation of the 2002 Denali Fault earthquakes, mapped by Radarsat-1 interferometry","docAbstract":"<p><span>The magnitude 7.9 earthquake that struck central Alaska on 3 November 2002 was the largest strike-slip earthquake in North America for more than 150 years. The earthquake ruptured about 340 km of the Denali Fault system with observed right-lateral offsets of up to 9 m [</span><i>Eberhart-Phillips et al.</i><span>, 2003] (Figure l). The rupture initiated with slip on a previously unknown thrust fault, the 40-km-long Susitna Glacier Fault. The rupture propagated eastward for about 220 km along the right-lateral Denali Fault where right-lateral slip averaged &tilde;5 m, before stepping southeastward onto the Totschunda Fault for about 70 km, with offsets as large as 2 m. The 3 November earthquake was preceded by a magnitude 6.7 shock on 23 October&mdash;the Nenana Mountain Earthquake&mdash;which was located about 25 km to the west of the 3 November earthquake.</span></p>","language":"English","publisher":"AGU Publications","doi":"10.1029/2003EO410002","usgsCitation":"Lu, Z., Wright, T., and Wicks, C.W., 2003, Deformation of the 2002 Denali Fault earthquakes, mapped by Radarsat-1 interferometry: Eos, Transactions, American Geophysical Union, v. 84, no. 41, p. 425-431, https://doi.org/10.1029/2003EO410002.","productDescription":"7 p.","startPage":"425","endPage":"431","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":307913,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"84","issue":"41","noUsgsAuthors":false,"publicationDate":"2011-06-03","publicationStatus":"PW","scienceBaseUri":"55e96f33e4b0dacf699e7873","contributors":{"authors":[{"text":"Lu, Zhong 0000-0001-9181-1818 lu@usgs.gov","orcid":"https://orcid.org/0000-0001-9181-1818","contributorId":901,"corporation":false,"usgs":true,"family":"Lu","given":"Zhong","email":"lu@usgs.gov","affiliations":[],"preferred":true,"id":571377,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wright, Tim","contributorId":35942,"corporation":false,"usgs":true,"family":"Wright","given":"Tim","affiliations":[],"preferred":false,"id":571378,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wicks, Charles W. Jr. 0000-0002-0809-1328 cwicks@usgs.gov","orcid":"https://orcid.org/0000-0002-0809-1328","contributorId":127701,"corporation":false,"usgs":true,"family":"Wicks","given":"Charles","suffix":"Jr.","email":"cwicks@usgs.gov","middleInitial":"W.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":571379,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":53075,"text":"ofr03323 - 2003 - Overview of the Alaska North Slope posters presented at the American Association of Petroleum Geologists (AAPG) annual meeting in Salt Lake City, Utah, USA during May 11-14, 2003: a status report of the U. S. Geological Survey Alaska petroleum studies","interactions":[],"lastModifiedDate":"2018-08-31T13:37:39","indexId":"ofr03323","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-323","title":"Overview of the Alaska North Slope posters presented at the American Association of Petroleum Geologists (AAPG) annual meeting in Salt Lake City, Utah, USA during May 11-14, 2003: a status report of the U. S. Geological Survey Alaska petroleum studies","docAbstract":"A poster prepared for the Annual Meeting of the American Association of Petroleum Geologists in Salt Lake City, Utah, May 11-14, 2003.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03323","usgsCitation":"Bird, K.J., 2003, Overview of the Alaska North Slope posters presented at the American Association of Petroleum Geologists (AAPG) annual meeting in Salt Lake City, Utah, USA during May 11-14, 2003: a status report of the U. S. Geological Survey Alaska petroleum studies: U.S. Geological Survey Open-File Report 2003-323, Poster: 84.00 x 36.00 inches, https://doi.org/10.3133/ofr03323.","productDescription":"Poster: 84.00 x 36.00 inches","temporalStart":"2003-05-11","temporalEnd":"2003-05-14","costCenters":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":181940,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03323.jpg"},{"id":5253,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0323/","linkFileType":{"id":5,"text":"html"}},{"id":285769,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0323/pdf/of03-323.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a2d1","contributors":{"authors":[{"text":"Bird, K. J.","contributorId":57824,"corporation":false,"usgs":false,"family":"Bird","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":246559,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":53078,"text":"ofr03327 - 2003 - Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska","interactions":[],"lastModifiedDate":"2018-08-31T13:37:06","indexId":"ofr03327","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-327","title":"Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska","docAbstract":"Ocentral Brooks Range consists of two superposed north-directed contractional orogens, one formed between 140-120 Ma and the other at ~60-45 Ma. The older orogen was an arc-continent collisional zone characterized by far-traveled allochthons and relatively low structural relief. The younger orogen is a retroarc thrust belt with relatively low amounts of shortening and high structural relief. Folding and thrusting of the younger episode is superimposed on the thin-skinned deformational wedge of the earlier orogen and also produced a frontal triangle zone in a thick sequence of mid-Cretaceous foreland basin sediments to the north. Stable isotope compositions of calcite and quartz veins indicate two fluid events including: (1) an earlier, higher-temperature (~250-300° C) event that produced veins in deformed Devonian clastic rocks, and (2) a younger, lower-temperature (~150° C) event that deposited veins in deformed Mississippian through Albian strata. The fluids in the first event had variable d18O values, but nearly constant d13C values buffered by limestone lithologies. The vein-forming fluids in the second event had similarly variable d18O values, but with distinctly lower d13C values as a result of oxidation of organic matter and/or methane. Zircon fission track ages demonstrate cooling to temperatures below 200° C between 140-120 Ma for the Devonian rocks, whereas zircon and apatite fission track ages show that Mississippian to Albian rocks were never heated above 200° C and cooled below 110-90° C at ~60-45 Ma. These data are interpreted as indicating that the older, high-temperature fluid event was active during thrusting at 120-140 Ma, and the younger fluid event during deformation at ~60-45 Ma. The data and results presented in this poster will be published in early 2004 in Moore and others (in press).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03327","usgsCitation":"Moore, T.E., Potter, C.J., O'Sullivan, P., Shelton, K.L., and Underwood, M.B., 2003, Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska: U.S. Geological Survey Open-File Report 2003-327, Sheet 1: 92.31 x 36.92 inches; Sheet 2: 92.31 x 36.92 inches, https://doi.org/10.3133/ofr03327.","productDescription":"Sheet 1: 92.31 x 36.92 inches; Sheet 2: 92.31 x 36.92 inches","costCenters":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":182039,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03327.jpg"},{"id":5255,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0327/","linkFileType":{"id":5,"text":"html"}},{"id":285780,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0327/pdf/sheet1.pdf"},{"id":285781,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0327/pdf/sheet2.pdf"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -165.0,66.0 ], [ -165.0,71.0 ], [ -141.0,71.0 ], [ -141.0,66.0 ], [ -165.0,66.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66ce36","contributors":{"authors":[{"text":"Moore, Thomas E. 0000-0002-0878-0457 tmoore@usgs.gov","orcid":"https://orcid.org/0000-0002-0878-0457","contributorId":1033,"corporation":false,"usgs":true,"family":"Moore","given":"Thomas","email":"tmoore@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":246568,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Potter, Christopher J. 0000-0002-2300-6670 cpotter@usgs.gov","orcid":"https://orcid.org/0000-0002-2300-6670","contributorId":1026,"corporation":false,"usgs":true,"family":"Potter","given":"Christopher","email":"cpotter@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":246567,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"O'Sullivan, Paul B.","contributorId":36627,"corporation":false,"usgs":true,"family":"O'Sullivan","given":"Paul B.","affiliations":[],"preferred":false,"id":246570,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shelton, Kevin L.","contributorId":48632,"corporation":false,"usgs":true,"family":"Shelton","given":"Kevin","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":246571,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Underwood, Michael B.","contributorId":6844,"corporation":false,"usgs":true,"family":"Underwood","given":"Michael","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":246569,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":53080,"text":"ofr2003329 - 2003 - Sandstone and shale compaction curves derived from sonic and gamma ray logs in offshore wells, North Slope, Alaska– Parameters for basin modeling","interactions":[],"lastModifiedDate":"2021-12-14T19:25:39.950653","indexId":"ofr2003329","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-329","title":"Sandstone and shale compaction curves derived from sonic and gamma ray logs in offshore wells, North Slope, Alaska– Parameters for basin modeling","docAbstract":"Representative compaction curves for the principle lithologies are essential input for reliable models of basin history. Compaction curves influence estimates of maximum burial and erosion. Different compaction curves may produce significantly different thermal histories. Default compaction curves provided by basin modeling packages may or may not be a good proxy for the compaction properties in a given area. Compaction curves in the published literature span a wide range, even within one lithology, e.g., sandstone (see Panel 3). An abundance of geophysical well data for the North Slope, from both government and private sources, provides us with an unusually good opportunity to develop compaction curves for the Cretaceous-Tertiary Brookian sandstones, siltstones, and shales. We examined the sonic and gamma ray logs from 19 offshore wells (see map), where significant erosion is least likely to have occurred. Our data are primarily from the Cretaceous-Tertiary Brookian sequence and are less complete for older sequences. \r\n\r\nFor each well, the fraction of shale (Vsh) at a given depth was estimated from the gamma ray log, and porosity was computed from sonic travel time. By compositing porosities for the near-pure sand (Vsh<1%) and shale (Vsh>99%)from many individual wells we obtained data over sufficient depth intervals to define sandstone and shale 'master' compaction curves. A siltstone curve was defined using the sonic-derived porosities for Vsh values of 50%. These compaction curves generally match most of the sonic porosities with an error of 5% or less. \r\n\r\nOnshore, the curves are used to estimate the depth of maximum burial at the end of Brookian sedimentation. The depth of sonic-derived porosity profiles is adjusted to give the best match with the 'master' compaction curves. The amount of the depth adjustment is the erosion estimate. Using our compaction curves, erosion estimates on the North Slope range from zero in much of the offshore, to as much as 1500 ft along the coast, and to more than 10,000 ft in the foothills (Panel 3). Compaction curves provide an alternative to vitrinite reflectance for estimating erosion. Vitrinite reflectance data are often very sparse in contrast to well log data and are subject to inconsistencies when measurements are made by different labs. The phenomenon of 'recycling' can also make the reflectance values of dispersed vitrinite problematic for quantifying erosion. Recycling is suspected in dispersed vitrinite in North Slope rocks, particularly in the younger, Cretaceous-Tertiary section. The compaction curves defined here are being integrated into our burial history and thermal models to determine the timing of source rock maturation. An example on Panel 3 shows the results of calculating the maturity of the Shublik Fm. at the Tulaga well using two different sets of shale and siltstone compaction curves. Finally, accurate compaction curves improve a model's ability to realistically simulate the pressure regime during burial, including overpressures.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr2003329","usgsCitation":"Rowan, E.L., Hayba, D.O., Nelson, P.H., Burns, W.M., and Houseknecht, D.W., 2003, Sandstone and shale compaction curves derived from sonic and gamma ray logs in offshore wells, North Slope, Alaska– Parameters for basin modeling: U.S. Geological Survey Open-File Report 2003-329, HTML Document, https://doi.org/10.3133/ofr2003329.","productDescription":"HTML Document","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":182041,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8872,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/of03-329/","linkFileType":{"id":5,"text":"html"}},{"id":392867,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_59088.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"North Slope","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -167,\n              68.8333\n            ],\n            [\n              -148,\n              68.8333\n            ],\n            [\n              -148,\n              71.4167\n            ],\n            [\n              -167,\n              71.4167\n            ],\n            [\n              -167,\n              68.8333\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ee4b07f02db5fdcd7","contributors":{"authors":[{"text":"Rowan, Elisabeth L. 0000-0001-5753-6189 erowan@usgs.gov","orcid":"https://orcid.org/0000-0001-5753-6189","contributorId":2075,"corporation":false,"usgs":true,"family":"Rowan","given":"Elisabeth","email":"erowan@usgs.gov","middleInitial":"L.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":246580,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayba, Daniel O. 0000-0003-4092-1894 dhayba@usgs.gov","orcid":"https://orcid.org/0000-0003-4092-1894","contributorId":396,"corporation":false,"usgs":true,"family":"Hayba","given":"Daniel","email":"dhayba@usgs.gov","middleInitial":"O.","affiliations":[],"preferred":true,"id":246577,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, Philip H. pnelson@usgs.gov","contributorId":862,"corporation":false,"usgs":true,"family":"Nelson","given":"Philip","email":"pnelson@usgs.gov","middleInitial":"H.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":246579,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burns, W. Matthew","contributorId":56742,"corporation":false,"usgs":true,"family":"Burns","given":"W.","email":"","middleInitial":"Matthew","affiliations":[],"preferred":false,"id":246581,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Houseknecht, David W. 0000-0002-9633-6910 dhouse@usgs.gov","orcid":"https://orcid.org/0000-0002-9633-6910","contributorId":645,"corporation":false,"usgs":true,"family":"Houseknecht","given":"David","email":"dhouse@usgs.gov","middleInitial":"W.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":246578,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":53079,"text":"ofr03328 - 2003 - Distribution, richness, quality, and thermal maturity of source rock units on the North Slope of Alaska","interactions":[],"lastModifiedDate":"2018-08-31T13:36:46","indexId":"ofr03328","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-328","title":"Distribution, richness, quality, and thermal maturity of source rock units on the North Slope of Alaska","docAbstract":"Four source rock units on the North Slope were identified, characterized, and mapped to better understand the origin of petroleum in the area: Hue-gamma ray zone (Hue-GRZ), pebble shale unit, Kingak Shale, and Shublik Formation. Rock-Eval pyrolysis, total organic carbon analysis, and well logs were used to map the present-day thickness, organic quantity (TOC), quality (hydrogen index, HI), and thermal maturity (Tmax) of each unit. To map these units, we screened all available geochemical data for wells in the study area and assumed that the top and bottom of the oil window occur at Tmax of ~440° and 470°C, respectively. Based on several assumptions related to carbon mass balance and regional distributions of TOC, the present-day source rock quantity and quality maps were used to determine the extent of fractional conversion of the kerogen to petroleum and to map the original organic richness prior to thermal maturation.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03328","usgsCitation":"Peters, K.E., Bird, K.J., Keller, M., Lillis, P., and Magoon, L.B., 2003, Distribution, richness, quality, and thermal maturity of source rock units on the North Slope of Alaska: U.S. Geological Survey Open-File Report 2003-328, 3 Sheets: 96.00 x 36.00 inches, https://doi.org/10.3133/ofr03328.","productDescription":"3 Sheets: 96.00 x 36.00 inches","costCenters":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":182040,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03328.jpg"},{"id":285784,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0328/pdf/sheet2.pdf"},{"id":5256,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0328/","linkFileType":{"id":5,"text":"html"}},{"id":285785,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0328/pdf/sheet3.pdf"},{"id":285783,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0328/pdf/sheet1.pdf"}],"country":"United States","state":"Alaska","otherGeospatial":"North Slope","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -166.85,68.0 ], [ -166.85,71.39 ], [ -141.0,71.39 ], [ -141.0,68.0 ], [ -166.85,68.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6be4b07f02db63d966","contributors":{"authors":[{"text":"Peters, K. E.","contributorId":17295,"corporation":false,"usgs":true,"family":"Peters","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":246572,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bird, K. J.","contributorId":57824,"corporation":false,"usgs":false,"family":"Bird","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":246576,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keller, M.A.","contributorId":41008,"corporation":false,"usgs":true,"family":"Keller","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":246574,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lillis, P. G. 0000-0002-7508-1699","orcid":"https://orcid.org/0000-0002-7508-1699","contributorId":17630,"corporation":false,"usgs":true,"family":"Lillis","given":"P. G.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":246573,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Magoon, L. B.","contributorId":44531,"corporation":false,"usgs":true,"family":"Magoon","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":246575,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":53074,"text":"ofr2003319 - 2003 - Aeromagnetic surveys in Yukon Flats Alaska, a website for the distribution of data","interactions":[],"lastModifiedDate":"2022-11-23T22:22:33.290523","indexId":"ofr2003319","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-319","title":"Aeromagnetic surveys in Yukon Flats Alaska, a website for the distribution of data","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr2003319","usgsCitation":"Brown, P., 2003, Aeromagnetic surveys in Yukon Flats Alaska, a website for the distribution of data (Version 1.0): U.S. Geological Survey Open-File Report 2003-319, HTML Document, https://doi.org/10.3133/ofr2003319.","productDescription":"HTML Document","costCenters":[],"links":[{"id":181824,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":409623,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_59092.htm","linkFileType":{"id":5,"text":"html"}},{"id":5252,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-319/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon Flats","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -141,\n              67.5\n            ],\n            [\n              -147,\n              67.5\n            ],\n            [\n              -147,\n              66\n            ],\n            [\n              -141,\n              66\n            ],\n            [\n              -141,\n              67.5\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db689c9a","contributors":{"authors":[{"text":"Brown, Philip J.","contributorId":70483,"corporation":false,"usgs":true,"family":"Brown","given":"Philip J.","affiliations":[],"preferred":false,"id":246558,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":53077,"text":"ofr03325 - 2003 - Petroleum source potential of the Lower Cretaceous mudstone succession of the NPRA and Colville Delta area, North Slope Alaska, based on sonic and resistivity logs","interactions":[],"lastModifiedDate":"2018-08-31T13:37:25","indexId":"ofr03325","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-325","title":"Petroleum source potential of the Lower Cretaceous mudstone succession of the NPRA and Colville Delta area, North Slope Alaska, based on sonic and resistivity logs","docAbstract":"Resource assessment of the North Slope of Alaska by the U. S. Geological Survey includes evaluation of the petroleum source potential of Mesozoic and Cenozoic rocks using the delta log R technique (Passey and others, 1990). Porosity and resistivity logs are used in combination with thermal maturity data to produce a continuous profile of total organic carbon content in weight % (TOC). From the pattern and amount of TOC in the profile produced, the depositional setting and thus the petroleum source-rock potential (kerogen type) of the organic matter can be inferred and compared to interpretations from other data such as Rock-Eval pyrolysis. TOC profiles determined by this technique for the contiguous interval of pebble shale unit, Hue Shale (including the Gamma Ray Zone or GRZ), and lower part of the Torok Formation indicate important potential for petroleum generation in the Tunalik 1, Inigok 1, N. Inigok 1, Kuyanak 1, Texaco Colville Delta 1, Nechelik 1, and Bergschrund 1 wells of the western North Slope region. TOC profiles suggest that this interval contains both type II and III kerogens – consistent with proposed depositional models -- and is predominantly greater than 2 wt. % TOC (cut-off used for effective source potential). Average TOC for the total effective section of the pebble shale unit + Hue Shale ranges from 2.6 to 4.1 wt % TOC (values predominantly 2-8% TOC) over 192-352 ft. Source potential for the lower Torok Formation, which also has interbedded sandstone and lean mudstone, is good to negligible in these 7 wells.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03325","usgsCitation":"Keller, M.A., and Bird, K.J., 2003, Petroleum source potential of the Lower Cretaceous mudstone succession of the NPRA and Colville Delta area, North Slope Alaska, based on sonic and resistivity logs: U.S. Geological Survey Open-File Report 2003-325, Sheet 1: 96.00 x 48.00 inches; Sheet 2: 96.00 x 48.00 inches, https://doi.org/10.3133/ofr03325.","productDescription":"Sheet 1: 96.00 x 48.00 inches; Sheet 2: 96.00 x 48.00 inches","costCenters":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":181942,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03325.jpg"},{"id":5254,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0325/","linkFileType":{"id":5,"text":"html"}},{"id":285773,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0325/pdf/sheet1.pdf"},{"id":285774,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0325/pdf/sheet2.pdf"}],"country":"United States","state":"Alaska","otherGeospatial":"North Slope","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -165.0,68.0 ], [ -165.0,72.0 ], [ -140.0,72.0 ], [ -140.0,68.0 ], [ -165.0,68.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adfe4b07f02db687ce8","contributors":{"authors":[{"text":"Keller, Margaret A. mkeller@usgs.gov","contributorId":1017,"corporation":false,"usgs":true,"family":"Keller","given":"Margaret","email":"mkeller@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":246566,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bird, Kenneth J. kbird@usgs.gov","contributorId":1015,"corporation":false,"usgs":true,"family":"Bird","given":"Kenneth","email":"kbird@usgs.gov","middleInitial":"J.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":246565,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":53076,"text":"ofr2003324 - 2003 - Alaskan North Slope petroleum systems","interactions":[],"lastModifiedDate":"2022-10-05T20:41:18.919069","indexId":"ofr2003324","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","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":"2003-324","title":"Alaskan North Slope petroleum systems","docAbstract":"<p>Six North Slope petroleum systems are identified, described, and mapped using oil-to-oil and oil-to-source rock correlations, pods of active source rock, and overburden rock packages. To map these systems, we assumed that: a) petroleum source rocks contain 3.2 wt. % organic carbon (TOC); b) immature oil-prone source rocks have hydrogen indices (HI) &gt;300 (mg HC/gm TOC); c) the top and bottom of the petroleum (oil plus gas) window occur at vitrinite reflectance values of 0.6 and 1.0% Ro, respectively; and d) most hydrocarbons are expelled within the petroleum window.</p><p>The six petroleum systems we have identified and mapped are: a) a southern system involving the Kuna-Lisburne source rock unit that was active during the Late Jurassic and Early Cretaceous; b) two western systems involving source rock in the Kingak-Blankenship, and GRZ-lower Torok source rock units that were active during the Albian; and c) three eastern systems involving the Shublik-Otuk, Hue Shale and Canning source rock units that were active during the Cenozoic. The GRZ-lower Torok in the west is correlative with the Hue Shale to the east. Four overburden rock packages controlled the time of expulsion and gross geometry of migration paths: a) a southern package of Early Cretaceous and older rocks structurally-thickened by early Brooks Range thrusting; b) a western package of Early Cretaceous rocks that filled the western part of the foreland basin; c) an eastern package of Late Cretaceous and Paleogene rocks that filled the eastern part of the foreland basin; and d) an offshore deltaic package of Neogene rocks deposited by the Colville, Canning, and Mackenzie rivers.</p><p>This petroleum system poster is part of a series of Northern Alaska posters on modeling. The poster in this session by Saltus and Bird present gridded maps for the greater Northern Alaskan onshore and offshore that are used in the 3D modeling poster by Lampe and others. Posters on source rock units are by Keller and Bird as well as Peters and others. Sandstone and shale compaction properties used in sedimentary basin modeling are covered in a poster by Rowan and others. The results of this modeling exercise will be used in our next Northern Alaska oil and gas resource assessment.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr2003324","usgsCitation":"Magoon, L.B., Lillis, P., Bird, K.J., Lampe, C., and Peters, K.E., 2003, Alaskan North Slope petroleum systems: U.S. Geological Survey Open-File Report 2003-324, 3 Sheets: 96.78 × 38.71 inches or smaller, https://doi.org/10.3133/ofr2003324.","productDescription":"3 Sheets: 96.78 × 38.71 inches or smaller","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":181941,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8873,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/of03-324/","linkFileType":{"id":5,"text":"html"}},{"id":407998,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_59066.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"North Slope","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -160,\n              68\n            ],\n            [\n              -146,\n              68\n            ],\n            [\n              -146,\n              71.4167\n            ],\n            [\n              -160,\n              71.4167\n            ],\n            [\n              -160,\n              68\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db6880c2","contributors":{"authors":[{"text":"Magoon, L. B.","contributorId":44531,"corporation":false,"usgs":true,"family":"Magoon","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":246562,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lillis, P. G. 0000-0002-7508-1699","orcid":"https://orcid.org/0000-0002-7508-1699","contributorId":17630,"corporation":false,"usgs":true,"family":"Lillis","given":"P. G.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":246561,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bird, K. J.","contributorId":57824,"corporation":false,"usgs":false,"family":"Bird","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":246563,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lampe, C.","contributorId":104138,"corporation":false,"usgs":true,"family":"Lampe","given":"C.","email":"","affiliations":[],"preferred":false,"id":246564,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Peters, K. E.","contributorId":17295,"corporation":false,"usgs":true,"family":"Peters","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":246560,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70222382,"text":"70222382 - 2003 - Correlates to survival of juvenile sea otters in Prince William Sound, Alaska, 1992-1993","interactions":[],"lastModifiedDate":"2021-07-26T17:24:00.99648","indexId":"70222382","displayToPublicDate":"2003-09-30T12:18:13","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Correlates to survival of juvenile sea otters in Prince William Sound, Alaska, 1992-1993","docAbstract":"<p><span>We estimated&nbsp;</span>survival<span>&nbsp;of&nbsp;</span>sea<span>&nbsp;</span>otters<span>&nbsp;(Enhydra lutris) for 1 year post weaning during&nbsp;</span>1992<span>-</span>1993<span>&nbsp;</span>in<span>&nbsp;</span>Prince<span>&nbsp;</span>William<span>&nbsp;</span>Sound<span>&nbsp;(PWS), location of the 1989 Exxon Valdez oil spill. We sampled 38 pups&nbsp;</span>in<span>&nbsp;eastern PWS (EPWS), an unoiled area occupied by&nbsp;</span>sea<span>&nbsp;</span>otters<span>&nbsp;for &lt;15 years, and 33 pups from oiled western PWS (WPWS), occupied for &gt;25 years. We compared&nbsp;</span>survival<span>&nbsp;between areas, sexes, and condition groups. We also examined the relation of blood parameters to&nbsp;</span>survival<span>.&nbsp;</span>Survival<span>&nbsp;was estimated at 0.74&nbsp;</span>in<span>&nbsp;EPWS and 0.52&nbsp;</span>in<span>&nbsp;WPWS. Female&nbsp;</span>survival<span>&nbsp;was 0.86&nbsp;</span>in<span>&nbsp;EPWS and 0.64&nbsp;</span>in<span>&nbsp;WPWS, whereas male&nbsp;</span>survival<span>&nbsp;was lower, 0.61&nbsp;</span>in<span>&nbsp;EPWS and 0.44&nbsp;</span>in<span>&nbsp;WPWS.&nbsp;</span>Sea<span>&nbsp;</span>otters<span>&nbsp;from EPWS were&nbsp;</span>in<span>&nbsp;better condition (mass/length) than WPWS&nbsp;</span>sea<span>&nbsp;</span>otters<span>. Pups&nbsp;</span>in<span>&nbsp;better condition had higher&nbsp;</span>survival<span>&nbsp;</span>in<span>&nbsp;EPWS but not&nbsp;</span>in<span>&nbsp;WPWS. Foraging success was greater&nbsp;</span>in<span>&nbsp;EPWS than&nbsp;</span>in<span>&nbsp;WPWS, consistent with either an effect of length of occupation or the effects of oil on the prey base or a combination of these effects. Area differences&nbsp;</span>in<span>&nbsp;blood parameters suggested liver damage&nbsp;</span>in<span>&nbsp;WPWS&nbsp;</span>sea<span>&nbsp;</span>otters<span>, perhaps resulting from continued exposure to oil. Thus, both length of occupation and oiling history likely influenced&nbsp;</span>juvenile<span>&nbsp;</span>survival<span>&nbsp;</span>in<span>&nbsp;PWS.</span></p>","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/z03-121","usgsCitation":"Ballachey, B.E., Bodkin, J.L., Howlin, S., Doroff, A., and Rebar, A., 2003, Correlates to survival of juvenile sea otters in Prince William Sound, Alaska, 1992-1993: Canadian Journal of Zoology, v. 81, no. 9, p. 1494-1510, https://doi.org/10.1139/z03-121.","productDescription":"17 p.","startPage":"1494","endPage":"1510","costCenters":[],"links":[{"id":387431,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United  States","state":"Alaska","otherGeospatial":"Prince William Sound","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -148.86474609375,\n              59.701013531997326\n            ],\n            [\n              -145.43701171875,\n              59.701013531997326\n            ],\n            [\n              -145.43701171875,\n              61.13262899079795\n            ],\n            [\n              -148.86474609375,\n              61.13262899079795\n            ],\n            [\n              -148.86474609375,\n              59.701013531997326\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"81","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ballachey, Brenda E. 0000-0003-1855-9171 bballachey@usgs.gov","orcid":"https://orcid.org/0000-0003-1855-9171","contributorId":2966,"corporation":false,"usgs":true,"family":"Ballachey","given":"Brenda","email":"bballachey@usgs.gov","middleInitial":"E.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":819892,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bodkin, James L. 0000-0003-1641-4438 jbodkin@usgs.gov","orcid":"https://orcid.org/0000-0003-1641-4438","contributorId":748,"corporation":false,"usgs":true,"family":"Bodkin","given":"James","email":"jbodkin@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":819893,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Howlin, S.","contributorId":94624,"corporation":false,"usgs":true,"family":"Howlin","given":"S.","affiliations":[],"preferred":false,"id":819894,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Doroff, A. M.","contributorId":92995,"corporation":false,"usgs":false,"family":"Doroff","given":"A. M.","affiliations":[],"preferred":false,"id":819895,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rebar, A.H.","contributorId":40150,"corporation":false,"usgs":true,"family":"Rebar","given":"A.H.","email":"","affiliations":[],"preferred":false,"id":819896,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70159930,"text":"70159930 - 2003 - Reproductive maturation and senescence in the female brown bear","interactions":[],"lastModifiedDate":"2021-02-08T16:38:28.751633","indexId":"70159930","displayToPublicDate":"2003-09-07T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3671,"text":"Ursus","active":true,"publicationSubtype":{"id":10}},"title":"Reproductive maturation and senescence in the female brown bear","docAbstract":"<p><span>Changes in age-specific reproductive rates can have important implications for managing populations, but the number of female brown (grizzly) bears (<i>Ursus arctos</i>) observed in any one study is usually inadequate to quantify such patterns, especially for older females and in hunted areas. We examined patterns of reproductive maturation and senescence in female brown bears by combining data from 20 study areas from Sweden, Alaska, Canada, and the continental United States. We assessed reproductive performance based on 4,726 radiocollared years for free-ranging female brown bears (age ≥3); 482 of these were for bears ≥20 years of age. We modeled age-specific probability of litter production using extreme value distributions to describe probabilities for young- and old-age classes, and a power distribution function to describe probabilities for prime-aged animals. We then fit 4 models to pooled observations from our 20 study areas. We used Akaike's Information Criterion (AIC) to select the best model. Inflection points suggest that major shifts in litter production occur at 4-5 and 28-29 years of age. The estimated model asymptote (0.332, 95% CI = 0.319-0.344) was consistent with the expected reproductive cycle of a cub litter every 3 years (0.333). We discuss assumptions and biases in data collection relative to the shape of the model curve. Our results conform to senescence theory and suggest that female age structure in contemporary brown bear populations is considerably younger than would be expected in the absence of modern man. This implies that selective pressures today differ from those that influenced brown bear evolution.</span></p>","language":"English","publisher":"International Association for Bear Research & Management","usgsCitation":"Schwartz, C.C., Keating, K.A., Reynolds III, H., Barnes, V.G., Sellers, R.A., Swenson, J.E., Miller, S.D., McLellan, B.N., Keay, J.A., McCann, R., Gibeau, M., Wakkinen, W.F., Mace, R.D., Kasworm, W., Smith, R., and Herrero, S., 2003, Reproductive maturation and senescence in the female brown bear: Ursus, v. 14, no. 2, p. 109-119.","productDescription":"11 p.","startPage":"109","endPage":"119","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":311890,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":383098,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/3873012"}],"country":"Canada, Sweden, United States","volume":"14","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"566175e0e4b06a3ea36c56e6","contributors":{"authors":[{"text":"Schwartz, Charles C.","contributorId":124574,"corporation":false,"usgs":false,"family":"Schwartz","given":"Charles","email":"","middleInitial":"C.","affiliations":[{"id":5119,"text":"Retired from U.S. Geological Survey, Interagency Grizzly Bear Study Team, Northern Rocky Mountain Science Center, 2327 University Way, suite 2, Bozeman, MT 59715","active":true,"usgs":false}],"preferred":false,"id":581120,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Keating, Kim A.","contributorId":44660,"corporation":false,"usgs":true,"family":"Keating","given":"Kim","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":581121,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reynolds III, Harry V.","contributorId":150230,"corporation":false,"usgs":false,"family":"Reynolds III","given":"Harry V.","affiliations":[{"id":7058,"text":"Alaska Department of Fish and Game","active":true,"usgs":false}],"preferred":false,"id":581122,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barnes, Victor G. Jr.","contributorId":95113,"corporation":false,"usgs":true,"family":"Barnes","given":"Victor","suffix":"Jr.","email":"","middleInitial":"G.","affiliations":[{"id":35655,"text":"Kodiak Brown Bear Trust, Westcliffe, CO","active":true,"usgs":false}],"preferred":false,"id":581123,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sellers, Richard A.","contributorId":150231,"corporation":false,"usgs":false,"family":"Sellers","given":"Richard","email":"","middleInitial":"A.","affiliations":[{"id":7058,"text":"Alaska Department of Fish and Game","active":true,"usgs":false}],"preferred":false,"id":581124,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Swenson, J. E.","contributorId":45518,"corporation":false,"usgs":false,"family":"Swenson","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":581125,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Miller, Sterling D.","contributorId":7205,"corporation":false,"usgs":true,"family":"Miller","given":"Sterling","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":581126,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"McLellan, B. N.","contributorId":82929,"corporation":false,"usgs":false,"family":"McLellan","given":"B.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":581127,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Keay, Jeffrey A. jkeay@usgs.gov","contributorId":331,"corporation":false,"usgs":true,"family":"Keay","given":"Jeffrey","email":"jkeay@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":581128,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"McCann, Robert","contributorId":150232,"corporation":false,"usgs":false,"family":"McCann","given":"Robert","email":"","affiliations":[],"preferred":false,"id":581129,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Gibeau, Michael","contributorId":150233,"corporation":false,"usgs":false,"family":"Gibeau","given":"Michael","email":"","affiliations":[{"id":6658,"text":"Parks Canada","active":true,"usgs":false}],"preferred":false,"id":581130,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Wakkinen, Wayne F.","contributorId":150234,"corporation":false,"usgs":false,"family":"Wakkinen","given":"Wayne","email":"","middleInitial":"F.","affiliations":[{"id":16279,"text":"Idaho Department of Fish & Game","active":true,"usgs":false}],"preferred":false,"id":581131,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Mace, Richard D.","contributorId":150235,"corporation":false,"usgs":false,"family":"Mace","given":"Richard","email":"","middleInitial":"D.","affiliations":[{"id":5099,"text":"Montana Department of Fish, Wildlife, and Parks","active":true,"usgs":false}],"preferred":false,"id":581132,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Kasworm, Wayne","contributorId":150237,"corporation":false,"usgs":false,"family":"Kasworm","given":"Wayne","affiliations":[{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":581133,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Smith, Rodger","contributorId":150238,"corporation":false,"usgs":false,"family":"Smith","given":"Rodger","email":"","affiliations":[{"id":7058,"text":"Alaska Department of Fish and Game","active":true,"usgs":false}],"preferred":false,"id":581134,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Herrero, Steven","contributorId":150239,"corporation":false,"usgs":false,"family":"Herrero","given":"Steven","email":"","affiliations":[{"id":16660,"text":"University of Calgary","active":true,"usgs":false}],"preferred":false,"id":581135,"contributorType":{"id":1,"text":"Authors"},"rank":16}]}}
,{"id":51153,"text":"ofr2002297 - 2003 - Unified Ecoregions of Alaska: 2001","interactions":[],"lastModifiedDate":"2022-09-07T15:04:05.182315","indexId":"ofr2002297","displayToPublicDate":"2003-09-01T00:00:00","publicationYear":"2003","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":"2002-297","title":"Unified Ecoregions of Alaska: 2001","docAbstract":"<p>Unified Ecoregions of Alaska map portrays major ecosystems of the state of Alaska and neighboring portions of Canada and Russia. The word \"Unified\" in the title refers to the interdisciplinary, interagency, and international effort to derive this broad-scale ecosystem map. The ecoregions, as portrayed on this dataset , are large ecosystems primarily defined by climate and topography, with refinements from vegetation patterns, lithology, and surficial deposits. Ecoregions are tens of millions of acres in size and correspond to the Province level of Bailey's hierarchy (1980, 1995).</p><p>A total of thirty-two ecoregion units were mapped representing the major ecosystems of Alaska. Ecoregions were mapped in their entirety, with some spanning international boundaries to include portions of Canada and Russia. 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,{"id":51405,"text":"ofr03238 - 2003 - Magnetotelluric data in the Delta River mining district, near the Tangle Lakes area of southcentral Alaska","interactions":[],"lastModifiedDate":"2021-09-14T19:34:03.993841","indexId":"ofr03238","displayToPublicDate":"2003-08-01T00:00:00","publicationYear":"2003","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":"2003-238","title":"Magnetotelluric data in the Delta River mining district, near the Tangle Lakes area of southcentral Alaska","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr03238","usgsCitation":"Pellerin, L., and Sampson, J., 2003, Magnetotelluric data in the Delta River mining district, near the Tangle Lakes area of southcentral Alaska (Version 1.0): U.S. Geological Survey Open-File Report 2003-238, 184 p., https://doi.org/10.3133/ofr03238.","productDescription":"184 p.","costCenters":[],"links":[{"id":178927,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":389230,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_55336.htm"},{"id":4412,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-238/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Delta River mining district","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -145.5,\n              62.9167\n            ],\n            [\n              -146.1667,\n              62.9167\n            ],\n            [\n              -146.1667,\n              63.4\n            ],\n            [\n              -145.5,\n              63.4\n            ],\n            [\n              -145.5,\n              62.9167\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db64943a","contributors":{"authors":[{"text":"Pellerin, Louise","contributorId":20824,"corporation":false,"usgs":true,"family":"Pellerin","given":"Louise","email":"","affiliations":[],"preferred":false,"id":243480,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sampson, Jay","contributorId":65915,"corporation":false,"usgs":true,"family":"Sampson","given":"Jay","affiliations":[],"preferred":false,"id":243481,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":51439,"text":"wri034114 - 2003 - Estimating annual high-flow statistics and monthly and seasonal low-flow statistics for ungaged sites on streams in Alaska and conterminous basins in Canada","interactions":[],"lastModifiedDate":"2026-02-17T16:52:05.212443","indexId":"wri034114","displayToPublicDate":"2003-08-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2003-4114","title":"Estimating annual high-flow statistics and monthly and seasonal low-flow statistics for ungaged sites on streams in Alaska and conterminous basins in Canada","docAbstract":"Methods for estimating daily mean flow-duration statistics for seven regions in Alaska and low-flow frequencies for one region, southeastern Alaska, were developed from daily mean discharges for streamflow-gaging stations in Alaska and conterminous basins in Canada. The 15-, 10-, 9-, 8-, 7-, 6-, 5-, 4-, 3-, 2-, and 1-percent duration flows were computed for the October-through-September water year for 222 stations in Alaska and conterminous basins in Canada. The 98-, 95-, 90-, 85-, 80-, 70-, 60-, and 50-percent duration flows were computed for the individual months of July, August, and September for 226 stations in Alaska and conterminous basins in Canada. The 98-, 95-, 90-, 85-, 80-, 70-, 60-, and 50-percent duration flows were computed for the season July-through-September for 65 stations in southeastern Alaska. The 7-day, 10-year and 7-day, 2-year low-flow frequencies for the season July-through-September were computed for 65 stations for most of southeastern Alaska. Low-flow analyses were limited to particular months or seasons in order to omit winter low flows, when ice effects reduce the quality of the records and validity of statistical assumptions. \r\n\r\nRegression equations for estimating the selected high-flow and low-flow statistics for the selected months and seasons for ungaged sites were developed from an ordinary-least-squares regression model using basin characteristics as independent variables. Drainage area and precipitation were significant explanatory variables for high flows, and drainage area, precipitation, mean basin elevation, and area of glaciers were significant explanatory variables for low flows. The estimating equations can be used at ungaged sites in Alaska and conterminous basins in Canada where streamflow regulation, streamflow diversion, urbanization, and natural damming and releasing of water do not affect the streamflow data for the given month or season. Standard errors of estimate ranged from 15 to 56 percent for high-duration flow statistics, 25 to greater than 500 percent for monthly low-duration flow statistics, 32 to 66 percent for seasonal low-duration flow statistics, and 53 to 64 percent for low-flow frequency statistics.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri034114","usgsCitation":"Wiley, J.B., and Curran, J.H., 2003, Estimating annual high-flow statistics and monthly and seasonal low-flow statistics for ungaged sites on streams in Alaska and conterminous basins in Canada: U.S. Geological Survey Water-Resources Investigations Report 2003-4114, 61 p., https://doi.org/10.3133/wri034114.","productDescription":"61 p.","costCenters":[],"links":[{"id":178999,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4449,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri034114/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e47a5e4b07f02db498026","contributors":{"authors":[{"text":"Wiley, Jeffrey B.","contributorId":59746,"corporation":false,"usgs":true,"family":"Wiley","given":"Jeffrey","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":243581,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Curran, Janet H. 0000-0002-3899-6275 jcurran@usgs.gov","orcid":"https://orcid.org/0000-0002-3899-6275","contributorId":690,"corporation":false,"usgs":true,"family":"Curran","given":"Janet","email":"jcurran@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":120,"text":"Alaska Science Center Water","active":true,"usgs":true}],"preferred":true,"id":243580,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":51396,"text":"ofr03266 - 2003 - Brookian structural plays in the National Petroleum Reserve, Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:11:22","indexId":"ofr03266","displayToPublicDate":"2003-08-01T00:00:00","publicationYear":"2003","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":"2003-266","title":"Brookian structural plays in the National Petroleum Reserve, Alaska","docAbstract":"As part of the U.S. Geological Survey assessment of undiscovered oil and gas\r\nresources in the National Petroleum Reserve-Alaska (NPRA), two structural plays were\r\nassessed in thrust-faulted and folded Upper Cretaceous rocks of the Brookian\r\nmegasequence. These are the Brookian Topset Structural Play and the Torok Structural\r\nPlay, located in the Brooks Range foothills and the southern part of the coastal plain,\r\nwithin the Tertiary-age frontal part of the Jurassic to Tertiary Brooks Range orogenic\r\nbelt. A new regional structural interpretation, developed through regional seismic\r\nanalyses, reconnaissance field investigations, and new thermal constraints, guided the\r\ngeologic evaluation and risking of these plays. Volumetric parameters were derived from\r\nseismic reflection data, well data and oil and gas field analogs.\r\nThe fundamental elements of the Brookian Topset Structural Play, exemplified by\r\nthe undeveloped Umiat oil field, include: (1) reservoirs in Nanushuk Group and\r\nuppermost Torok Formation shallow-marine to nonmarine sandstones draped over\r\nanticlines caused by structural thickening in underlying Torok mudstones; (2) seals\r\nprovided by overlying shale drapes in the Nanushuk, and locally by thrust faults; (3)\r\nTorok, gamma-ray-zone (GRZ) or pebble shale source rocks; (4) remigration of\r\nhydrocarbons from early formed (Late Cretaceous) stratigraphic traps disrupted by 60 Ma\r\nthrusting, into newly formed structural traps. The 60 Ma thrusting was probably\r\naccompanied by new generation and migration of natural gas resulting from late\r\nstructural thickening and tectonic loading. Subsurface data from the Umiat field and\r\nother seismic reflection data within the play area indicate that the structural traps are\r\ncommonly compartmentalized by thrust faults.\r\nThe fundamental elements of the Torok Structural Play, exemplified by the\r\nundeveloped East Kurupa gas accumulation just south of NPRA, include: (1) reservoirs\r\nin lower Torok Formation basin-floor sandstones, and perhaps in small sandstone bodies\r\nintercalated with middle to upper Torok mudstones; (2) structural traps provided by\r\nfolded sandstone bodies above thrust faults within a pervasively deformed passive-roof\r\nduplex beneath the foothills and a less-strongly deformed domain to the north; (3) seals\r\nprovided by Torok mudstone, both stratigraphically above the sandstone bodies and\r\nsmeared along bounding thrust faults; (4) Torok, GRZ, pebble shale, or Kingak Shale\r\nsource rocks; (5) a migration and charging scenario similar to that of the Brookian Topset\r\nStructural Play. According to our estimates, the Brookian Topset Structural Play contains 137\r\nmillion barrels of technically recoverable oil and 10.6 trillion cubic feet (TCF) of\r\ntechnically recoverable, non-associated natural gas, with both values representing the\r\nmean estimate (expected value). The Torok Structural Play contains about 35 million\r\nbarrels of technically recoverable oil and 17.9 TCF of technically recoverable, nonassociated\r\nnatural gas.","language":"ENGLISH","doi":"10.3133/ofr03266","usgsCitation":"Potter, C.J., and Moore, T.E., 2003, Brookian structural plays in the National Petroleum Reserve, Alaska: U.S. Geological Survey Open-File Report 2003-266, 49 p., https://doi.org/10.3133/ofr03266.","productDescription":"49 p.","costCenters":[],"links":[{"id":179410,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4403,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/of03-266/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb343","contributors":{"authors":[{"text":"Potter, Christopher J. 0000-0002-2300-6670 cpotter@usgs.gov","orcid":"https://orcid.org/0000-0002-2300-6670","contributorId":1026,"corporation":false,"usgs":true,"family":"Potter","given":"Christopher","email":"cpotter@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":243453,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, Thomas E. 0000-0002-0878-0457 tmoore@usgs.gov","orcid":"https://orcid.org/0000-0002-0878-0457","contributorId":1033,"corporation":false,"usgs":true,"family":"Moore","given":"Thomas","email":"tmoore@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":243454,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":51395,"text":"ofr03268 - 2003 - Density and magnetic susceptibility values for rocks in the Talkeetna Mountains and adjacent region, south-central Alaska","interactions":[],"lastModifiedDate":"2023-06-23T14:03:04.202275","indexId":"ofr03268","displayToPublicDate":"2003-08-01T00:00:00","publicationYear":"2003","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":"2003-268","title":"Density and magnetic susceptibility values for rocks in the Talkeetna Mountains and adjacent region, south-central Alaska","docAbstract":"This report presents a compilation and statistical analysis of 306 density and 706 magnetic susceptibility measurements of rocks from south-central Alaska that were collected by U.S. Geological Survey (USGS) and Alaska Division of Geological and Geophysical Surveys (ADGGS) scientists between the summers of 1999 and 2002. This work is a product of the USGS Talkeetna Mountains Transect Project and was supported by USGS projects in the Talkeetna Mountains and Iron Creek region, and by Bureau of Land Management (BLM) projects in the Delta River Mining District that aim to characterize the subsurface structures of the region. These data were collected to constrain potential field models (i.e., gravity and magnetic) that are combined with other geophysical methods to identify and model major faults, terrane boundaries, and potential mineral resources of the study area. Because gravity and magnetic field anomalies reflect variations in the density and magnetic susceptibility of the underlying lithology, these rock properties are essential components of potential field modeling. In general, the average grain density of rocks in the study region increases from sedimentary, felsic, and intermediate igneous rocks, to mafic igneous and metamorphic rocks. Magnetic susceptibility measurements performed on rock outcrops and hand samples from the study area also reveal lower magnetic susceptibilities for sedimentary and felsic intrusive rocks, moderate susceptibility values for metamorphic, felsic extrusive, and intermediate igneous rocks, and higher susceptibility values for mafic igneous rocks. The density and magnetic properties of rocks in the study area are generally consistent with general trends expected for certain rock types.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03268","usgsCitation":"Sanger, E.A., and Glen, J., 2003, Density and magnetic susceptibility values for rocks in the Talkeetna Mountains and adjacent region, south-central Alaska: U.S. Geological Survey Open-File Report 2003-268, Report: ii, 42 p.; Data File, https://doi.org/10.3133/ofr03268.","productDescription":"Report: ii, 42 p.; Data File","numberOfPages":"44","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":179334,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03268.jpg"},{"id":4402,"rank":5,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0268/","linkFileType":{"id":5,"text":"html"}},{"id":390693,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_55295.htm"},{"id":285722,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0268/pdf/of03-268.pdf"},{"id":285723,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0268/rock_prop.txt"}],"country":"United States","state":"Alaska","otherGeospatial":"Talkeetna Mountains","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -150.0,62.1667 ], [ -150.0,63.6667 ], [ -145.0,63.6667], [ -145.0,62.1667 ], [ -150.0,62.1667 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab2e4b07f02db66eb62","contributors":{"authors":[{"text":"Sanger, Elizabeth A.","contributorId":50219,"corporation":false,"usgs":true,"family":"Sanger","given":"Elizabeth","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":243452,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glen, Jonathan M. G.","contributorId":45756,"corporation":false,"usgs":true,"family":"Glen","given":"Jonathan M. G.","affiliations":[],"preferred":false,"id":243451,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":51399,"text":"ofr03253 - 2003 - Structural plays in Ellesmerian sequence and correlative strata of the National Petroleum Reserve, Alaska","interactions":[],"lastModifiedDate":"2023-06-23T14:04:19.42066","indexId":"ofr03253","displayToPublicDate":"2003-07-01T00:00:00","publicationYear":"2003","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":"2003-253","title":"Structural plays in Ellesmerian sequence and correlative strata of the National Petroleum Reserve, Alaska","docAbstract":"<p>Reservoirs in deformed rocks of the Ellesmerian sequence in southern NPRA are assigned to two hydrocarbon plays, the Thrust-Belt play and the Ellesmerian Structural play. The two plays differ in that the Thrust-Belt play consists of reservoirs located in allochthonous strata in the frontal part of the Brooks Range fold-and-thrust belt, whereas those of the Ellesmerian Structural play are located in autochthonous or parautochthonous strata at deeper structural levels north of the Thrust-Belt play. Together, these structural plays are expected to contain about 3.5 TCF of gas but less than 6 million barrels of oil.</p> \n<br>\n<p>These two plays are analyzed using a two-stage deformational model. The first stage of deformation occurred during the Neocomian, when distal strata of the Ellesmerian sequence were imbricated and assembled into deformational wedges emplaced northward onto regionally south-dipping authochon at 140-120 Ma. In the mid-Cretaceous following cessation of the deformation, the Colville basin, the foreland basin to the orogen, was filled with a thick clastic succession. During the second stage of deformation at about 60 Ma (early Tertiary), the combined older orogenic belt-foreland basin system was involved in another episode of north-vergent contractional deformation that deformed pre-existing stratigraphic and structurally trapped reservoir units, formed new structural traps, and caused significant amounts of uplift, although the amount of shortening was relatively small in comparison to the first episode of deformation.</p>\n<br>\n<p>Hydrocarbon generation from source strata (Shublik Formation, Kingak Shale, and Otuk Formation) and migration into stratigraphic traps occurred primarily by sedimentary burial principally between 100-90 Ma, between the times of the two episodes of deformation. Subsequent burial caused deep stratigraphic traps to become overmature, cracking oil to gas, and some new generation to begin progressively higher in the section. Structural disruption of the traps in the Early Tertiary is hypothesized to have released sequestered hydrocarbons and caused remigration into newly formed structural traps formed at higher structural levels. Because of the generally high maturation of the Colville basin at the time of the deformation and remigration, most of the hydrocarbons available to fill traps were gas.</p> \n<br>\n<p>In the the Thrust-Belt play, the primary reservoir lithology is expected to be dolomitic carbonate rocks of the Lisburne Group, which contain up to 15% porosity. Antiformal stacks of imbricated Lisburne Group strata form the primary trapping configuration, with chert and shale of the overlying Etivluk Group forming seals on closures. Traps are expected to have been charged primarily with remigrated gas, but oil generated from local sources in the Otuk Formation may have filled some traps at high structural levels. The timing for migration of gas into traps is excellent, but only moderate for oil because peak oil generation for the play as a whole occurred 30 to 40 m.y. before trap formation. Reservoir and seal quality in the play are questionable, reducing the likelyhood of hydrocarbon accumulations being present in the play. Our analysis suggests that the play will hold 5.7 million barrels of technically recoverable oil and 1.5 TCF gas (mean values).</p> \n<br>\n<p>In the Ellesmerian Stuctural play, the primary reservoir lithologies will be dolomitic carbonate rocks of the Lisburne Group and, less likely, clastic units in the Ellesmerian sequence. Traps in the play are anticlinal closures caused by small amounts of strain in the footwall below the basal detachment for most early Tertiary thrusting. Because these traps lie beneath the main source rock units (Shublik, Kingak, lower Brookian sequence), reservoirs that are juxtaposed by faulting against source-rock units are expected to have the most favorable migration pathways. The charge will be primarily remigrated gas; no oil is expected because of the great depths (15,000 to 26,000 ft) and consequent high thermal maturity of this play. Although the the probability of charge and timeliness of trap formation and gas remigration are excellent, seal and reservoir qualities are anticipated to be poor. Our analysis suggests that about 2.0 TCF of techncially recoverable gas can be expected in the play.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03253","usgsCitation":"Moore, T.E., and Potter, C.J., 2003, Structural plays in Ellesmerian sequence and correlative strata of the National Petroleum Reserve, Alaska: U.S. Geological Survey Open-File Report 2003-253, 40 p., https://doi.org/10.3133/ofr03253.","productDescription":"40 p.","numberOfPages":"58","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":178739,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03253.jpg"},{"id":285706,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0253/pdf/of03-253.pdf"},{"id":4406,"rank":3,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0253/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"National Petroleum Reserve","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -160.0,68.0 ], [ -160.0,71.0 ], [ -150.0,71.0 ], [ -150.0,68.0 ], [ -160.0,68.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b13e4b07f02db6a37bd","contributors":{"authors":[{"text":"Moore, Thomas E. 0000-0002-0878-0457 tmoore@usgs.gov","orcid":"https://orcid.org/0000-0002-0878-0457","contributorId":1033,"corporation":false,"usgs":true,"family":"Moore","given":"Thomas","email":"tmoore@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":243460,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Potter, Christopher J. 0000-0002-2300-6670 cpotter@usgs.gov","orcid":"https://orcid.org/0000-0002-2300-6670","contributorId":1026,"corporation":false,"usgs":true,"family":"Potter","given":"Christopher","email":"cpotter@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":243459,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":51459,"text":"ofr03100 - 2003 - Preliminary assessment of landslide-induced wave hazards: Tidal Inlet, Glacier Bay National Park, Alaska","interactions":[],"lastModifiedDate":"2021-12-20T22:00:27.258954","indexId":"ofr03100","displayToPublicDate":"2003-07-01T00:00:00","publicationYear":"2003","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":"2003-100","title":"Preliminary assessment of landslide-induced wave hazards: Tidal Inlet, Glacier Bay National Park, Alaska","docAbstract":"A large potential rock avalanche above the northern shore of Tidal Inlet, Glacier Bay National Park, Alaska, was investigated to determine hazards and risks of landslide-induced waves to cruise ships and other park visitors. Field and photographic examination revealed that the 5 to 10 million cubic meter landslide moved between AD 1892 and 1919 after the retreat of Little Ice Age glaciers from Tidal Inlet by AD 1890. The timing of landslide movement and the glacial history suggest that glacial debuttressing caused weakening of the slope and that the landslide could have been triggered by large earthquakes of 1899-1900 in Yakutat Bay. Evidence of recent movement includes fresh scarps, back-rotated blocks, and smaller secondary landslide movements. However, until there is evidence of current movement, the mass is classified as a dormant rock slump. An earthquake on the nearby active Fairweather fault system could reactivate the landslide and trigger a massive rock slump and debris avalanche into Tidal Inlet. Preliminary analyses show that waves induced by such a landslide could travel at speeds of 45 to 50 m/s and reach heights up to 76 m with wave runups of 200 m on the opposite shore of Tidal Inlet. Such waves would not only threaten vessels in Tidal Inlet, but would also travel into the western arm of Glacier Bay endangering large cruise ships and their passengers.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr03100","usgsCitation":"Wieczorek, G.F., Jakob, M., Motyka, R.J., Zirnheld, S.L., and Craw, P., 2003, Preliminary assessment of landslide-induced wave hazards: Tidal Inlet, Glacier Bay National Park, Alaska (Version 1.0): U.S. Geological Survey Open-File Report 2003-100, HTML Document, https://doi.org/10.3133/ofr03100.","productDescription":"HTML Document","costCenters":[],"links":[{"id":393162,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54948.htm"},{"id":4467,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-100/ofr-03-100.html","linkFileType":{"id":5,"text":"html"}},{"id":179377,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Glacier Bay National Park, Tidal Inlet","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -136.461181640625,\n              58.79951639742835\n            ],\n            [\n              -136.23046875,\n              58.79951639742835\n            ],\n            [\n              -136.23046875,\n              58.859223547066584\n            ],\n            [\n              -136.461181640625,\n              58.859223547066584\n            ],\n            [\n              -136.461181640625,\n              58.79951639742835\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c9af","contributors":{"authors":[{"text":"Wieczorek, Gerald F.","contributorId":81889,"corporation":false,"usgs":true,"family":"Wieczorek","given":"Gerald","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":243648,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jakob, Matthias","contributorId":82179,"corporation":false,"usgs":true,"family":"Jakob","given":"Matthias","email":"","affiliations":[],"preferred":false,"id":243649,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Motyka, Roman J.","contributorId":68165,"corporation":false,"usgs":true,"family":"Motyka","given":"Roman","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":243646,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zirnheld, Sandra L.","contributorId":13863,"corporation":false,"usgs":true,"family":"Zirnheld","given":"Sandra","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":243645,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Craw, Patricia","contributorId":71055,"corporation":false,"usgs":true,"family":"Craw","given":"Patricia","email":"","affiliations":[],"preferred":false,"id":243647,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":51537,"text":"ofr03200 - 2003 - Geophysical identification and geological Implications of the southern Alaska magnetic trough","interactions":[],"lastModifiedDate":"2025-08-19T21:07:22.635149","indexId":"ofr03200","displayToPublicDate":"2003-07-01T00:00:00","publicationYear":"2003","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":"2003-200","title":"Geophysical identification and geological Implications of the southern Alaska magnetic trough","docAbstract":"The southern Alaska magnetic trough (SAMT) is one of the fundamental, crustal-scale, magnetic features of Alaska. It is readily recognized on 10 km upward-continued aeromagnetic maps of the state. The arcuate SAMT ranges from 30 to 100 km wide and extends in two separate segments along the southern Alaska margin for about 1200 km onshore (from near the Alaska/Canada border at about 60 degrees north latitude to the Bering Sea) and may continue an additional 500 km or more offshore (in the southern Bering Sea). The SAMT is bordered to the south by the southern Alaska magnetic high (SAMH) produced by strongly magnetic crust and to the north by a magnetically quiet zone that reflects weakly magnetic interior Alaska crust. Geophysically, the SAMT is more than just the north-side dipole low associated with the SAMH. Several modes of analysis, including examination of magnetic potential (pseudogravity) and profile modeling, indicate that the source of this magnetic trough is a discrete, crustal-scale body. Geologically, the western portion of the SAMT coincides to a large degree with collapsed Mesozoic Kahiltna flysch basin. This poster presents our geophysical evidence for the extent and geometry of this magnetic feature as well as initial geological synthesis and combined geologic/geophysical modeling to examine the implications of this feature for the broad scale tectonic framework of southern Alaska.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr03200","usgsCitation":"Saltus, R.W., Hudson, T.L., and Wilson, F.H., 2003, Geophysical identification and geological Implications of the southern Alaska magnetic trough (Version 1.0): U.S. Geological Survey Open-File Report 2003-200, Poster, 72 by 36 inches, https://doi.org/10.3133/ofr03200.","productDescription":"Poster, 72 by 36 inches","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":178022,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4554,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-200","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c4bc","contributors":{"authors":[{"text":"Saltus, R. W.","contributorId":85588,"corporation":false,"usgs":true,"family":"Saltus","given":"R.","middleInitial":"W.","affiliations":[],"preferred":false,"id":243881,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hudson, T. L.","contributorId":13992,"corporation":false,"usgs":true,"family":"Hudson","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":243879,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":243880,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":53174,"text":"pp1673 - 2003 - Revised Cretaceous and Tertiary stratigraphic nomenclature in the Colville Basin, Northern Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:11:47","indexId":"pp1673","displayToPublicDate":"2003-07-01T00:00:00","publicationYear":"2003","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":"1673","title":"Revised Cretaceous and Tertiary stratigraphic nomenclature in the Colville Basin, Northern Alaska","docAbstract":"A revised stratigraphic nomenclature is proposed for Cretaceous and Tertiary geologic units of the central and western North Slope of Alaska. This revised nomenclature is a simplified and broadly applicable scheme suitable for a suite of digital geologic quadrangle maps being prepared jointly by the U.S. Geological Survey and the Alaska Department of Natural Resources, Division of Geological and Geophysical Surveys and Division of Oil and Gas. This revised nomenclature scheme is a simplification of a complex stratigraphic terminology that developed piecemeal during five decades of geologic investigations of the North Slope. It is based on helicopter-supported geologic field investigations incorporating information from high-resolution aerial photography, satellite imagery, paleontology, reflection seismic records, and sequence stratigraphic concepts. \r\nThis revised nomenclature proposes the abandonment of the Colville Group; demotion of the Nanushuk Group to formation status; abandonment of six formations (Kukpowruk, Tuktu, Grandstand, Corwin, Chandler, and Ninuluk); revision of four formations (Sagavanirktok, Prince Creek, Schrader Bluff, and Seabee); elevation of the Tuluvak Tongue of the Prince Creek Formation to formation status; revision of two members (Franklin Bluffs Member and Sagwon Member of the Sagavanirktok Formation); abandonment of eight members or tongues (Kogosukruk, Rogers Creek, Barrow Trail, Sentinel Hill, Ayiyak, Shale Wall, Niakogon, and Killik); and definition of one new member (White Hills Member of the Sagavanirktok Formation).","language":"ENGLISH","doi":"10.3133/pp1673","usgsCitation":"Mull, C.G., Houseknecht, D.W., and Bird, K.J., 2003, Revised Cretaceous and Tertiary stratigraphic nomenclature in the Colville Basin, Northern Alaska (Version 1.0): U.S. Geological Survey Professional Paper 1673, 59 p., https://doi.org/10.3133/pp1673.","productDescription":"59 p.","costCenters":[],"links":[{"id":174826,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4757,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/p1673/ ","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fbc45","contributors":{"authors":[{"text":"Mull, Charles G.","contributorId":49343,"corporation":false,"usgs":true,"family":"Mull","given":"Charles","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":246830,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Houseknecht, David W. 0000-0002-9633-6910 dhouse@usgs.gov","orcid":"https://orcid.org/0000-0002-9633-6910","contributorId":645,"corporation":false,"usgs":true,"family":"Houseknecht","given":"David","email":"dhouse@usgs.gov","middleInitial":"W.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":246828,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bird, Kenneth J. kbird@usgs.gov","contributorId":1015,"corporation":false,"usgs":true,"family":"Bird","given":"Kenneth","email":"kbird@usgs.gov","middleInitial":"J.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":246829,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":51455,"text":"ofr03105 - 2003 - Preliminary geologic map of the northeast Dillingham quadrangle (D-1, D-2, C-1, and C-2), Alaska","interactions":[],"lastModifiedDate":"2023-04-03T19:16:07.31536","indexId":"ofr03105","displayToPublicDate":"2003-06-01T07:00:00","publicationYear":"2003","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":"2003-105","title":"Preliminary geologic map of the northeast Dillingham quadrangle (D-1, D-2, C-1, and C-2), Alaska","docAbstract":"<p>Open-File Report 03-105 contains a digital geologic map database for the northeast part of the Dillingham 1:250,000-scale quadrangle, specifically the D-1, D-2, C-1, and C-2 1:63,360-scale map sheets. The report includes:</p><ol><li>A Postscript file showing the geologic map on a topographic and land-grid base, and containing a Correlation of Map Units diagram (CMU), and a List of Map Units. (Note the size of the map when printed at publication scale (1:100,000) is 30 by 24 inches (76 by 61 cm).</li><li>A PDF document providing Introductory text, Description of Map Units (DMU), References, and a table of radiometric ages.</li><li>A collection of ARC/INFO (http://www.esri.com, Environmental Systems Research Institute) version 7.2.1 coverages (as export files) of the elements of the geologic map, including:<blockquote><p>a. Network coverage containing the geologic polygons, contacts, and faults,</p><p>b. Annotation coverage containing the geologic unit labels and leaders,</p><p>c. Point coverage containing the radiometric age sample localities,</p><p>d. Template files containing the lookup table structure used to produce the map. Data to populate the template files is provided in comma-separated value (.csv) text files as follows: napkey.csv plutonkey.csv geoline.csv</p><p>e. Network coverage containing the Correlation of Map Units (CMU) for the map.</p></blockquote></li><li>Portable Document Format (.pdf) files consisting of: a. Introductory text, Description of Map Units (DMU), References, and a table of radiometric ages for the map. b. A graphic of the map as in the Postscript file above.</li><li>FGDC compliant metadata for the digital data files (coverages).</li></ol><p>The Correlation of Map Units and Description of Map Units are in a format similar to that of the USGS Geologic Investigations Series (I-series) maps but have not been edited to comply with I-map standards. Even though this is an Open-File Report and includes the standard USGS Open-File disclaimer, the report closely adheres to the Stratigraphic Nomenclature of the U.S. Geological Survey.</p><p>ARC/INFO symbolsets (shade and line) as used for these maps have been made available elsewhere as part of Geologic map of Central (Interior) Alaska, published as a USGS Open-File Report (Wilson and others, 1998, http://geopubs.wr.usgs.gov/open-file/of98-133-a/).</p><p>This product does not include the digital topographic base or land-grid files used to produce the map, nor does it include the AML and related ancillary key and other files used to assemble the components of the map.</p><p><br></p><p>A Postscript file showing the geologic map on a topographic and land-grid base, and containing a Correlation of Map Units diagram (CMU), and a List of Map Units. (Note the size of the map when printed at publication scale (1:100,000) is 30 by 24 inches (76 by 61 cm).</p><p>A PDF document providing Introductory text, Description of Map Units (DMU), References, and a table of radiometric ages. A collection of ARC/INFO (http://www.esri.com, Environmental Systems Research Institute) version 7.2.1 coverages (as export files) of the elements of the geologic map, including:</p><p><br></p><p>a. Network coverage containing the geologic polygons, contacts, and faults,</p><p><br></p><p>b. Annotation coverage containing the geologic unit labels and leaders,</p><p><br></p><p>c. Point coverage containing the radiometric age sample localities,</p><p><br></p><p>d. Template files containing the lookup table structure used to produce the map. Data to populate the template files is provided in comma-separated value (.csv) text files as follows: napkey.csv plutonkey.csv geoline.csv</p><p><br></p><p>e. Network coverage containing the Correlation of Map Units (CMU) for the map.</p><p><br></p><p>Portable Document Format (.pdf) files consisting of:</p><p><br></p><p>a. Introductory text, Description of Map Units (DMU), References, and a table of radiometric ages for the map.</p><p><br></p><p>b. A graphic of the map as in the Postscript file above.</p><p><br></p><p>FGDC compliant metadata for the digital data files (coverages). The Correlation of Map Units and Description of Map Units are in a format similar to that of the USGS Geologic Investigations Series (I-series) maps but have not been edited to comply with I-map standards. Even though this is an Open-File Report and includes the standard USGS Open-File disclaimer, the report closely adheres to the Stratigraphic Nomenclature of the U.S. Geological Survey.</p><p><br></p><p>ARC/INFO symbolsets (shade and line) as used for these maps have been made available elsewhere as part of Geologic map of Central (Interior) Alaska, published as a USGS Open-File Report (Wilson and others, 1998, http://geopubs.wr.usgs.gov/open-file/of98-133-a/).</p><p><br></p><p>This product does not include the digital topographic base or land-grid files used to produce the map, nor does it include the AML and related ancillary key and other files used to assemble the components of the map.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03105","usgsCitation":"Wilson, F.H., Hudson, T.L., Grybeck, D., Stoeser, D.B., Preller, C.C., Bickerstaff, D., Labay, K., and Miller, M.L., 2003, Preliminary geologic map of the northeast Dillingham quadrangle (D-1, D-2, C-1, and C-2), Alaska (Edition 1.0): U.S. Geological Survey Open-File Report 2003-105, Report: 13 p.; Plate: 30.01 x 24.43 inches; Metadata: HTML Report, https://doi.org/10.3133/ofr03105.","productDescription":"Report: 13 p.; Plate: 30.01 x 24.43 inches; Metadata: HTML Report","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":179303,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03105.jpg"},{"id":293658,"rank":3,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0105/"},{"id":398344,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54896.htm"},{"id":285300,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0105/pdf/of03-105pamph.pdf"},{"id":285301,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0105/pdf/of03-105.pdf"},{"id":285302,"rank":4,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2003/0105/dinegeol_meta.htm"}],"scale":"100000","country":"United States","state":"Alaska","otherGeospatial":"Dillingham quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156.75,\n              59.5\n            ],\n            [\n              -156.75,\n              60\n            ],\n            [\n              -156,\n              60\n            ],\n            [\n              -156,\n              59.5\n            ],\n            [\n              -156.75,\n              59.5\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Edition 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa9e4b07f02db667ebf","contributors":{"authors":[{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":243625,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hudson, Travis L.","contributorId":28288,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":243628,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grybeck, Donald","contributorId":8066,"corporation":false,"usgs":true,"family":"Grybeck","given":"Donald","affiliations":[],"preferred":false,"id":243627,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stoeser, Douglas B. dstoeser@usgs.gov","contributorId":1821,"corporation":false,"usgs":true,"family":"Stoeser","given":"Douglas","email":"dstoeser@usgs.gov","middleInitial":"B.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":243624,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Preller, Cindi C.","contributorId":55898,"corporation":false,"usgs":true,"family":"Preller","given":"Cindi","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":243630,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bickerstaff, Damon","contributorId":49445,"corporation":false,"usgs":true,"family":"Bickerstaff","given":"Damon","affiliations":[],"preferred":false,"id":243629,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Labay, Keith A. 0000-0002-6763-3190 klabay@usgs.gov","orcid":"https://orcid.org/0000-0002-6763-3190","contributorId":2097,"corporation":false,"usgs":true,"family":"Labay","given":"Keith A.","email":"klabay@usgs.gov","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":false,"id":243626,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Miller, Marti L. 0000-0003-0285-4942 mlmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-0285-4942","contributorId":561,"corporation":false,"usgs":true,"family":"Miller","given":"Marti","email":"mlmiller@usgs.gov","middleInitial":"L.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":243631,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":51410,"text":"ofr03230 - 2003 - Digital depth horizon compilations of the Alaskan North Slope and adjacent Arctic regions","interactions":[],"lastModifiedDate":"2022-10-07T20:22:30.774246","indexId":"ofr03230","displayToPublicDate":"2003-06-01T00:00:00","publicationYear":"2003","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":"2003-230","title":"Digital depth horizon compilations of the Alaskan North Slope and adjacent Arctic regions","docAbstract":"Data have been digitized and combined to create four detailed depth horizon grids spanning the Alaskan North Slope and adjacent offshore areas. These map horizon compilations were created to aid in petroleum system modeling and related studies. Topography/bathymetry is extracted from a recent Arctic compilation of global onshore DEM and satellite altimetry and ship soundings offshore. The Lower Cretaceous Unconformity (LCU), the top of the Triassic Shublik Formation, and the pre-Carboniferous acoustic basement horizon grids are created from numerous seismic studies, drill hole information, and interpolation. These horizons were selected because they mark critical times in the geologic evolution of the region as it relates to petroleum. The various horizons clearly show the major tectonic elements of this region including the Brooks Range, Colville Trough, Barrow Arch, Hanna Trough, Chukchi Platform, Nuwuk Basin, Kaktovik Basin, and Canada Basin. The gridded data are available in a variety of data formats for use in regional studies.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr03230","usgsCitation":"Saltus, R.W., and Bird, K.J., 2003, Digital depth horizon compilations of the Alaskan North Slope and adjacent Arctic regions (Version 1.0): U.S. Geological Survey Open-File Report 2003-230, Report: 21 p.; Readme; Data Directory, https://doi.org/10.3133/ofr03230.","productDescription":"Report: 21 p.; Readme; Data Directory","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":179504,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":408127,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54950.htm","linkFileType":{"id":5,"text":"html"}},{"id":4425,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-230/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Arctic region, North Slope","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -171,\n              66\n            ],\n            [\n              -135,\n              66\n            ],\n            [\n              -135,\n              73\n            ],\n            [\n              -171,\n              73\n            ],\n            [\n              -171,\n              66\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d4e6","contributors":{"authors":[{"text":"Saltus, Richard W. saltus@usgs.gov","contributorId":777,"corporation":false,"usgs":true,"family":"Saltus","given":"Richard","email":"saltus@usgs.gov","middleInitial":"W.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":243494,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bird, Kenneth J. kbird@usgs.gov","contributorId":1015,"corporation":false,"usgs":true,"family":"Bird","given":"Kenneth","email":"kbird@usgs.gov","middleInitial":"J.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":243495,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":51482,"text":"ofr0353 - 2003 - Alaska resource data file: Black River quadrangle","interactions":[],"lastModifiedDate":"2025-06-03T15:37:14.85713","indexId":"ofr0353","displayToPublicDate":"2003-06-01T00:00:00","publicationYear":"2003","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":"2003-53","title":"Alaska resource data file: Black River quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr0353","usgsCitation":"Clautice, K.H., 2003, Alaska resource data file: Black River quadrangle: U.S. Geological Survey Open-File Report 2003-53, 13 p., https://doi.org/10.3133/ofr0353.","productDescription":"13 p.","costCenters":[],"links":[{"id":489472,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0053/ofr0353.pdf"},{"id":4483,"rank":4,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389452,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54577.htm"},{"id":178249,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2003/0053/coverthb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Black River 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              67\n            ],\n            [\n              -141,\n              67\n            ],\n            [\n              -141,\n              66\n            ],\n            [\n              -144,\n              66\n            ],\n            [\n              -144,\n              67\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ce4b07f02db60836b","contributors":{"authors":[{"text":"Clautice, Karen H.","contributorId":43852,"corporation":false,"usgs":true,"family":"Clautice","given":"Karen","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":243707,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
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