Filters: Tags: {"scheme":"None"} (X) > partyWithName: Alaska Division of Geological & Geophysical Surveys (X) > partyWithName: Newberry, R.J. (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Andrew, J.E. Athey, J.E. Clautice, K.H. Freeman, L.K. More... Tag Types Theme (84) Place (43) Tags (with Scheme=None) alaska, state of (2) geochemistry (2) major oxides (2) aereal (1) aerial photography (1) aeromagnetic survey (1) age dates (1) More... View Results as: JSON ATOM CSV

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 Geochemical, major-oxide, minor-oxide, trace-element and carbon data from rocks collected in 2008 in the eastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geological field survey, including mapping and sampling in the eastern part of the Bonnifield mining district in the Fairbanks A-1, A-2, Healy D-1 and D-2 quadrangles, Alaska from June 16 to July 18, 2008. The fieldwork provides basic information critical to building an understanding of Alaska geology and is part of an integrated program of airborne geophysical surveys followed by geological mapping. During 2008, 242 rock samples were collected for geochemical trace-element analysis, 106 rock samples were collected for whole rock (major- and minor-oxide and petrogenetically important trace element) analyses, and... Tags: Alaska Range, Alaska, State of, Buzby prospect, Chute Creek, Denali Borough, All tags... Dry Creek, Dry Creek placer mine, Dry Creek prospect, Fairbanks Quadrangle, Forgotten Creek, Geochemistry, Glacier Creek, Glory Creek, Glory Creek prospect, Healy Quadrangle, Kansas Creek, Kansas Creek prospect, LEA Creek prospect, Major Oxides, Newman Creek, Newman Creek placer mine, Red Mountain Creek, Red Mountain Creek prospect, Rogers Creek, STATEMAP Project, Sheep Creek, Slate Creek, Slide Creek, Smog prospect, Snow Mountain Gulch, Stream Sediments, Threemile Creek, Trace Metals, WTF (Western Tundra Flats) prospect, West Fork Little Delta River, Wood River, geoscientificInformation, Fewer tags Chert geochemistry discriminant analysis and K-meas cluster analysis: Rampart Project area, Tanana B-1 Quadrangle, east-central Alaska A pilot study using discriminant analysis on major oxide and minor element data from 67 chert samples in the Rampart area, southeastern Tanana and southwest Livengood Quadrangles, western Yukon-Tanana Upland, Alaska, generally indicates a unique geochemical signature for the cherts of a given unit.Chert samples from five known type locales were used as standards of comparison: 1)Livengood Dome Chert (Ordovician), 2)Amy Creek unit (Proterozoic to early Paleozoic), 3)Rampart Group (Mississippian to Triassic), 4)Troublesome Creek unit (Devonian), and 5)Permian-Triassic clastic unit (associated with the Triassic-dated gabbro). Samples from the above units were compared to chert from Tanana B-1 area-units of unknown... Tags: Barium, Bedrock Geologic Map, Chemistry, Chert, Geochemical Data, All tags... Geochemical Surveys, Geochemistry, Livengood Quadrangle, Major Oxides, Metasedimentary rocks, Methods, Phosphorus, Potassium, Rampart Mining District, Rampart-Manley Mining District, Rare Earth Elements, Rubidium, Silica, Strontium, Tanana Quadrangle, Titanium, Trace Elements, Vanadium, Yttrium, Zirconium, Fewer tags