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Alaska Division of Oil and Gas personnel collected and interpreted various data sources related to the interpretation of the Base Tertiary unconformity surface in the Cook Inlet Basin, Alaska.Data sources included public literature, public well data information (from the AOGCC-Alaska Oil and Gas Conservation Commission), a palynology database (Greater Cook Inlet Stratigraphic Palynology Control Database and Stud,Zippi, P.A., 2006) and over 2000 miles of 2D marine seismic data (CI-88 and CI-89 licensed from, and complements of, CGGVeritas.) Interpreted formation tops of the Base Tertiary unconformity are tabulated on the map.
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Between 27 and 11 kyr ago, during the last major (Naptowne) glaciation, the northwestern and western Kenai Peninsula and the Cook Inlet trough were covered by ice except for local nunataks and small refugia, like the Caribou Hills. Landforms related to four glacial stades are recognized and paleogeographic maps document ice limits, drainage systems, glacial-impounded lakes, and glaciomarine terraces. Numerous multidisciplinary studies of glacial, vegetation, and insect histories document Holocene climatic changes.
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The Alaska Volcano Observatory (AVO) uses an informal set of names for about 140 'volcanoes.' Some names refer to large, complex volcanic centers, while others indicate only a specific cone. This publication expands the list of 140 named volcanoes to include all volcanic vents where magma has reached the surface over the past 2.6 million years. This database of all known (published, or unpublished with permission) Quaternary volcanic vents was developed to better describe the nature and character of Quaternary volcanism in Alaska and specifically to aid in the discussion of spatial and temporal patterns of Alaska volcanism. This list is a preliminary starting point, and we hope that it is updated and expanded by...
Tags: Adak Quadrangle, Alaska Peninsula, Aleutian Islands, Amukta Quadrangle, Atka Quadrangle, All tags...
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This map shows the subcrop pattern of the Mesozoic rock units present at the top Mesozoic unconformity (also commonly referred to as the base Tertiary unconformity) in Cook Inlet basin, Alaska. The subcrop is projected onto the top Mesozoic unconformity depth surface of Cook Inlet basin, Alaska, published by Shellenbaum and others (2010). Publicly available geologic and geophysical data from multiple sources were collected, interpreted, and integrated into the subcrop map. Formation picks at the top Mesozoic unconformity were determined for 109 wells. Mesozoic horizons from two regional marine two-dimensional (2-D) seismic datasets (approximately 3,300 miles) were interpreted. Eight map units were established for...
Tags: Anchorage, Anchorage Quadrangle, Bedrock Geologic Map, Bedrock Geology, Bibliography, All tags...
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The palynological samples included in this report were collected as part of the Alaska Department of Natural Resources' (Alaska Division of Geological & Geophysical Surveys (DGGS) and Alaska Division of Oil & Gas (DOG)) Cook Inlet Basin Analysis program. The focus of this program is to evaluate the stratigraphic trap potential and reservoir quality of coal-bearing Cenozoic strata in upper Cook Inlet basin and the reservoir quality of Mesozoic strata throughout the basin. The samples included in this report were collected in the Tyonek, Kenai, and Seldovia Quadrangles from September 2006 through July 2010. All samples in this report were processed by Russ Harms in Medicine Toenail Alberta, Canada. Prepared slides...


    map background search result map search result map A Guide to the Late Quaternary History of Northern and Western Kenai Peninsula, Alaska Preliminary database of Quaternary vents in Alaska Palynological analysis of 228 outcrop samples from the Kenai, Seldovia, and Tyonek quadrangles, Cook Inlet region, Alaska Top Mesozoic unconformity depth map of the Cook Inlet Basin, Alaska Top Mesozoic unconformity subcrop map, Cook Inlet basin, Alaska A Guide to the Late Quaternary History of Northern and Western Kenai Peninsula, Alaska Palynological analysis of 228 outcrop samples from the Kenai, Seldovia, and Tyonek quadrangles, Cook Inlet region, Alaska Top Mesozoic unconformity subcrop map, Cook Inlet basin, Alaska Top Mesozoic unconformity depth map of the Cook Inlet Basin, Alaska Preliminary database of Quaternary vents in Alaska