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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Alaska Division of Geological & Geophysical Surveys Decker, P.L. State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Wartes, M.A. LePain, D.L. More... Tag Types Theme (5) Place (5) Tag Schemes Alaska Division of Geological & Geophysical Surveys (4) None (1) ISO 19115 Topic Category (5) View Results as: JSON ATOM CSV

Major-oxide and trace-element geochemical data from rocks collected in 2010 in the Tyonek Quadrangle, Alaska Cook Inlet has been recognized as the second-largest petroleum province in Alaska, second only to the North Slope. The south-central Tyonek Quadrangle is an area of significant geologic interest because it is the only location in Cook Inlet where the entire producing stratigraphy of the basin is exposed on the surface. Additionally, this area encompasses the structural boundary between the forearc basin and its sediment source rocks. To better understand the petroleum system and the geologic relationships between the exhumed arc intrusive rocks and adjacent Cenozoic stratigraphy of the Cook Inlet forearc basin, during the summer of 2010 the Alaska Division of Geological & Geophysical Surveys conducted a federally-funded... Tags: Alaska Range, Analyses, Analyses and Sampling, Analytical Lab Results, Analytical Results, All tags... Bedrock, Bedrock Geology, Chemistry, Cook Inlet, Cook Inlet Basin, Exploration, Geochemical Data, Geochemical Surveys, Geochemistry, Geology, Igneous, Igneous Rocks, Lab Methods, Magmatic Arc, Major Oxides, Minor Oxides, Neacola Mountains, Petrology, Resources, Rocks, STATEMAP Project, Sample Location, Tordrillo Mountains, Trace Elements, Trace Geochemical, Tyonek, Tyonek Quadrangle, Volcanic, Volcanic Arc, Volcanic Rocks, geoscientificInformation, Fewer tags Geologic context, age constraints, and sedimentology of a Pleistocene volcaniclastic succession near Mount Spurr volcano, south-central Alaska A physiographically prominent, approximately 40 square km plateau lies roughly 20 km east of Mount Spurr volcano, northwestern Cook Inlet region, Alaska, and comprises the preserved remnant of a volcaniclastic succession, designated in this study as map unit Qvc. Although this readily mappable package of volcaniclastic rocks has been recognized in numerous studies during the past five decades, uncertainties regarding its age and origin have persisted. We describe the general characteristics of the volcaniclastic plateau, provide new age constraints for deposits, present lithofacies descriptions and interpretations of the volcaniclastic strata, and synthesize our observations and lithofacies analysis to propose an... Tags: Age Dates, Alluvial, Alluvial Deposits, Bedrock, Bedrock Geology, All tags... Capps Glacier, Debris Flow, Debris Flow Deposit, Depositional Environment, Depositional Environments, Detrital Zircon, Facies Analysis, Geochronology, Geological Process, Geology, Lahar, Lahar Runout Flow, Liquefaction, Mount Spurr, Paleoenvironment, Paleogeography, STATEMAP Project, Sediment Transport, Sedimentary, Sedimentary Rocks, Sedimentation, Sedimentology, Tyonek Quadrangle, U-Pb, Volcaniclastics, geoscientificInformation, Fewer tags Geologic map of the Kavik River area, northeastern Brooks Range, Alaska The 1:63,360 Kavik River geologic map area consists of ~620 square miles and ties together previous DGGS mapping in the Sadlerochit and Shublik Mountains area of the western Arctic National Wildlife Refuge (ANWR) on the east and the structurally complex foothills and mountain front near the Kemik gas accumulation on the west. The map area exposes a unique intersection of North Slope stratigraphy where all three major depositional megasequences are mappable in close association (Ellesmerian, Beaufortian, and Brookian). Tags: Arctic National Wildlife Refuge, Canning River, Fin Creek, Geologic, Geologic Map, All tags... Geology, Juniper Creek, Kavik River, Mount Michelson Quadrangle, North Slope, North Slope Basin, Oil and Gas Basin, Rock Units, STATEMAP Project, Sedimentary, Sedimentary Rocks, Sedimentation, Sedimentology, Seismic Profile, Structural Geology, Structure, Structure Map, geoscientificInformation, Fewer tags Geologic map of the south-central Sagavanirktok Quadrangle, North Slope, Alaska This geologic map and report present 1:63,360-scale geologic mapping of the south-central Sagavanirktok Quadrangle in northern Alaska. This area encompasses approximately 600 square miles in the northern foothills of the Brooks Range, and includes stratigraphic and structural elements important to understanding the oil and gas potential of Alaska's North Slope. Tags: Alaska Pipeline, Apatite, Arctic Alaska, Arctic National Wildlife Refuge, Aufeis State #1, All tags... Brookian, Brooks Range, Colville Basin, Cross Section, Dalton Highway, Echooka River, Energy Resources, Exhumation, Fission Track, Geologic Map, Happy Valley, Hydrocarbon, Icecut, Inoceramus, Ivishak River, Lupine River, Lupine State #1, Lupinvanirktok, North Slope, Oil Seeps, Oil and Gas Basin, Petroleum, Philip Smith Mountains, Planolites, Regression, STATEMAP Project, Sagashak Creek, Sagavanirktok Quadrangle, Sagavanirktok River, Sagwon Bluffs, Sedimentary Rocks, Seismic Interpretation, Sequence Stratigraphy, Susie State #1, Thermal History, Thermal Maturity, Thermochronology, Trace Fossils, Trans-Alaska Pipeline, Transgression, Uplift, Well Logs, geoscientificInformation, Fewer tags Major-oxide and trace-element geochemical data from rocks collected in 2015 in lower Cook Inlet, Iniskin - Tuxedni region, Alaska The Iniskin-Tuxedni Bay area contains excellent exposures of nearly all of the lower Cook Inlet Mesozoic succession, including most of the stratigraphic sections that define the interval and the petroleum source rocks that comprise the basin. An underdeveloped understanding of the Mesozoic petroleum system has led the Alaska Department of Natural Resources' Division of Geological & Geophysical Surveys and Division of Oil and Gas, and the U.S. Geological Survey to collaborate on a multi-year project that includes two major mapping campaigns. Geologic mapping between Chinitna Bay and the Johnson River during the 2015 field season encompassed volcanic arc rocks northwest of the Bruin Bay fault system, and Mesozoic... Tags: Analyses, Analyses and Sampling, Analytical Lab Results, Analytical Results, Chemistry, All tags... Chitina, Cook Inlet, Geochemical Data, Geochemistry, Geology, Igneous, Igneous Rocks, Iliamna, Kenai, Lab Methods, Magmatic Arc, Major Oxides, Minor Oxides, STATEMAP Project, Sample Location, Trace Elements, Volcanic, Volcanic Arc, Volcanic Rocks, geoscientificInformation, Fewer tags