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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Newberry, R.J. Reifenstuhl, R.R. Pinney, D.S. Blodgett, R.B. Clautice, K.H. More... Tag Types Theme (7) Place (7) Tag Schemes none (5) None (3) ISO 19115 Topic Category (7) View Results as: JSON ATOM CSV

Geologic map of the Tanana A-1 and A-2 quadrangles, central Alaska This report provides detailed (1:63,360-scale) mapping of the Tanana A-1 and A-2 quadrangles (500 square miles; equivalent to eight 7.5-minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the south of the Tanana B-1 Quadrangle. This report includes detailed bedrock, surficial, structural, and stratigraphic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the report also includes derivative maps of geologic construction materials and geologic hazards. The Tanana A-1 and A-2 Quadrangles and surrounding area comprise several isolated mountainous ridges in the western Yukon-Tanana Upland... Tags: 40Ar/39Ar, Aerial Photography, Aeromagnetic Map, Aeromagnetic Survey, Age Dates, All tags... Bibliography, Biostratigraphy, CIPW Norms, Carbonates, Cerium, Clastics, Conductivity Survey, Core Logs, Cultural Resources, Depositional Environment, Diagenesis, Disseminated, Economic Geology, Economic Study, Electromagnetic Survey, Epithermal, Erosion, Faulting, Folding, Fossils, Geologic Map, Geomorphology, Geophysical Map, Glacial, Glacial Processes, Gold, Greenschist, Greisen, Historic Resources, Hot Springs, K-Ar, Lab Methods, Lode, Magnetic Susceptibility, Magnetometer Survey, Major Oxides, Manley Basin, Marine, Measured Stratigraphic Section, Metamorphic Grade, Metamorphism, Mineralogy, Mining, Modal Analysis, Niobium, Ores, Orogeny, Paleobotany, Paleocurrent, Paleoenvironment, Paleontology, Palynology, Petrogenesis, Petrography, Petrology, Placer, Plutonic, Plutonic Hosted, Precious Metals, Production Data, Provenance, Rare Earth Elements, Reconstructions, Regional, Regional Metamorphism, Remote Sensing, Resistivity Survey, Resource Assessment, Sandstone, Sedimentary, Sedimentation, Shale, Silver, Structure, Structure Map, Surficial, Tectonic Map, Tectonics, Terranes, Topographic Map, Turbidites, Type Section, Uplift, Volcanic, Volcanic Hosted, Yukon River, geoscientificInformation, Fewer tags Geologic map of the Circle mining district, Alaska This report provides detailed (1:63,360-scale) mapping of portions of U.S. Geological Survey Circle B-2 (1955), B-3 (1955), B-4 (1952), C-2 (1955), C-3 (1955), and C-4 (1952) quadrangles. The area is part of the Circle mining district and adjacent to the Fairbanks mining district. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards. Tags: Aereal, Aerial Photography, Aeromagnetic Survey, Age Dates, Alaska, State of, All tags... Alluvial Deposits, Alluvium, Amphibolite, Ar-Ar, Bedrock, Bibliography, Birch Creek, C14, Carbonates, Circle Hot Springs, Circle Mining District, Circle Quadrangle, Clastics, Coal, Colluvial Deposits, Colluvium, Conductivity Survey, Conodonts, Crooked Creek, Electromagnetic Survey, Fan, Faulting, Faults, Fluvial, Folding, Fossils, Geologic, Geomorphology, Glacial, Glacial Deposits, Glacial Drift, Granite, Hornblende, Hornfels, Igneous Rocks, K-Ar, Magnetite, Major Oxides, Mammoth Creek, Mastodon Dome, Metamorphic Grade, Metamorphic Minerals, Metamorphism, Mineralogy, Modal Analysis, Petrography, Plutonic, Plutonic Hosted, Porphyry, Precious Metals, Quartz, Regional, Regional Metamorphism, Sample Location, Sandstone, Schist, Sedimentary, Structure, Surficial, Tectonics, Terranes, geoscientificInformation, Fewer tags Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, Central Alaska This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed bedrock, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards. Tags: Aerial Photography, Aeromagnetic Survey, Age Dates, Amphibolite, Bibliography, All tags... Carbonates, Clastics, Coal, Conductivity Survey, Electromagnetic Survey, Faulting, Folding, Geologic, Geomorphology, Geothermometry, Greenschist, Hornfels, Igneous Rocks, Index Minerals, Isograds, Isotopes, K-Ar, Lode, Magnetic Susceptibility, Metamorphic Grade, Metamorphic Minerals, Metamorphism, Petrography, Plutonic, Plutonic Hosted, Precious Metals, Regional, Regional Metamorphism, Resource Assessment, Rifting, Sample Location, Sandstone, Schist, Sedimentary, Shale, Structure, Tectonics, Terranes, Uplift, Volcanic, Yukon-Tanana Terrane, geoscientificInformation, Fewer tags Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Sagavanirktok B-1 Quadrangle (640 square km�equivalent to four 7.5 minute quadrangles). This mapping project reinterprets micropaleontologic correlations for 17 Sagavanirktok Quadrangle wells, and reprocesses data from the one publicly-available seismic line. Surface geologic mapping, subsurface-to-surface stratigraphic age control, and seismic framework are required to reliably decipher the complex geology of this key area of the Brooks Range. Outcrops within the Sagavanirktok B-1 Quadrangle are the closest surface expressions of Prudhoe Bay source and reservoir rocks. This study yields critical petroleum-related... Tags: Arctic National Wildlife Refuge, Basins, Biostratigraphy, Brooks Range, Carbonates, All tags... Clastics, Coal, Depositional Environment, Diagenesis, Faulting, Fluvial, Folding, Formations, Fossils, Geologic, Glacial Processes, Marine, Marine Transgressions, Measured Stratigraphic Section, Modal Analysis, North Slope Basin, Orogeny, Paleobotany, Paleoenvironment, Paleontology, Palynology, Petrography, Petroleum, Provenance, Resource Assessment, Sandstone, Sedimentary, Shale, Shaviovik River, Structure, Surficial, Tectonics, Trace Fossils, Turbidites, Volcanic Ash, geoscientificInformation, Fewer tags Geologic map of the Tanana B-1 quadrangle, central Alaska This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards. Tags: Aerial Photography, Aeromagnetic Survey, Age Dates, Amphibolite, Ar-Ar, All tags... Bibliography, C14, CIPW Norms, Carbonates, Clastics, Coal, Conductivity Survey, Conodonts, Electromagnetic Survey, Faulting, Faults, Folding, Fossils, Geologic, Geomorphology, Geothermometry, Glacial, Glacial Processes, Greenschist, Igneous Rocks, Index Minerals, Isograds, Isotopes, K-Ar, Lode, Major Oxides, Metamorphic Grade, Metamorphic Minerals, Metamorphism, Modal Analysis, Petrography, Plutonic, Plutonic Hosted, Precious Metals, Reconstructions, Regional, Regional Metamorphism, Resource Assessment, Rifting, Sample Location, Sandstone, Schist, Sedimentary, Shale, Structure, Surficial, Tectonics, Terranes, Type Section, Uplift, Volcanic, Yukon River, geoscientificInformation, Fewer tags Bedrock geologic map of the Liberty Bell area, Fairbanks A-4 Quadrangle, Bonnifield mining district, Alaska Report of Investigation 2006-2, "Bedrock geologic map of the Liberty Bell area, Fairbanks A-4 Quadrangle, Bonnifield mining district, Alaska," is the bedrock geologic map of an approximately 131-square-mile area surrounding the Liberty Bell Mine. The geology of the Liberty Bell area, located in the northern Alaska Range foothills, comprises Devonian metasedimentary and meta-igneous rocks of the Totatlanika Schist and Keevy Peak formations, Cretaceous and Tertiary igneous rocks, and overlying unconsolidated Tertiary sedimentary rocks of the Usibelli Group and the younger Nenana Gravel. Tags: 40Ar/39Ar, Alaska, State of, Bedrock Geologic Map, Bonnifield Mining District, Coal, All tags... Fairbanks Quadrangle, Geochemical Data, Geochronology, Geology, Igneous Rocks, Jumbo Dome, Liberty Bell Mine, Metamorphic Rocks, Palynology, Petrography, STATEMAP Project, Sedimentary Rocks, Volcanic Rocks, geoscientificInformation, Fewer tags Geological map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Sagavanirktok B-1 Quadrangle (640 square km�equivalent to four 7.5 minute quadrangles). This geologic map was produced by merging a bedrock geologic map and a surficial geologic map of the Eagle A-2 Quadrangle. This mapping project reinterprets micropaleontologic correlations for 17 Sagavanirktok Quadrangle wells, and reprocesses data from the one publicly-available seismic line. Surface geologic mapping, subsurface-to-surface stratigraphic age control, and seismic framework are required to reliably decipher the complex geology of this key area of the Brooks Range. Outcrops within the Sagavanirktok B-1... Tags: Arctic National Wildlife Refuge, Aufeis, Basins, Biostratigraphy, Brooks Range, All tags... C14, Carbonates, Clastics, Coal, Depositional Analysis, Diagenesis, Eolian, Faulting, Fluvial, Folding, Formations, Geologic, Geologic Map, Geomorphology, Glacial, Glacial Geology, Glacial Processes, Glaciation, Glaciers, Icings, Marine, Marine Transgressions, Measured Stratigraphic Section, Modal Analysis, Moraines, North Slope Basin, Orogeny, Paleobotany, Paleoenvironment, Paleontology, Palynology, Petrography, Petroleum, Provenance, Resource Management, Sandstone, Sedimentary, Shale, Shaviovik River, Silt, Structure, Surficial, Surficial Geology, Tectonics, Thaw Lakes, Trace Fossils, Turbidites, Volcanic Ash, geoscientificInformation, Fewer tags