Filters: Tags: Uranium (X) > partyWithName: Alaska Division of Geological & Geophysical Surveys (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Bachmann, E.N. Benowitz, J.A. Blessington, M.J. Freeman, L.K. Gillis, R.J. More... Tag Types Theme (6) Place (6) Tag Schemes Alaska Division of Geological & Geophysical Surveys (6) ISO 19115 Topic Category (6) View Results as: JSON ATOM CSV

Analyses of historic U.S. Bureau of Mines rock and heavy mineral concentrate samples for geochemical trace-element and rare-earth element data--Ray Mountains and Kanuti-Hodzana uplands area, Alaska Re-analyses of sample pulps and bulk rejects from historic USBM rock and heavy-mineral-concentrate samples were conducted by the Alaska Division of Geological & Geophysical Surveys (DGGS) as part of the State of Alaska's Strategic and Critical Minerals Assessment project, which is designed to evaluate Alaska's potential for these resources. The objective of this resource assessment is to expand the state's geochemical database by obtaining and publishing modern, quantitative geochemical analyses for historic USBM samples, where available. Highlights of this re-analysis project include heavy mineral concentrates with up 7,220 ppm Sn, 5,870 ppm Cr, and 17,000 ppm Mn. Tags: Aluminum, Antimony, Arsenic, Barium, Basalt, All tags... Base Metals, Beaver Quadrangle, Bedrock, Beryllium, Bettles Quadrangle, Bismuth, Bonanza Creek, Cadmium, Calcium, Caribou Mountain, Cerium, Cesium, Chlorite, Chromium, Coal Creek, Cobalt, Copper, Critical Minerals, Dall River, Dalton Highway, Dysprosium, Economic Geology, Erbium, Europium, Exploration, Felsic, Fish Creek, Fluorine, Fort Hamlin Hills, Gadolinium, Galena, Gallium, Geochemical Data, Geochemical Surveys, Geochemistry, Germanium, Gobblers Knob, Gold, Granite, Greisen, Hafnium, Heavy Metals, Holmium, Igneous Rocks, Iron, Ishtalitna Creek, Kanuti Hot Springs, Kanuti Kilolitna River, Kanuti River, Kilo Hot Springs, Koyukuk Mining District, Lanthanide Elements, Lanthanum, Livengood Quadrangle, Lode, Lower Ray Hot Springs, Lutetium, Magnesium, Manganese, McQuesten Creek, Metabasite, Metals, Metamorphic Rocks, Metasedimentary rocks, Metavolcanic rocks, Mineral Assessment, Mineral Deposit, Mineral Resources, Molybdenum, Monazite, Mount Henry Eakin, Mount Tozi, Neodymium, Nickel, Niobium, No Name Creek, Non-Metals, Palladium, Pan Concentrates, Phosphorus, Placer, Placer Gold, Platinum, Platinum Group Elements, Potassium, Praseodymium, Precious Metals, Promethium, Prospect Creek, Rare Earth Elements, Ray Mountains, Ray River, Ray River Hot Springs, Ree, Resource Assessment, Resources, Rubidium, Samarium, Scheelite, Schist, Selenium, Silica, Silver, Sithylemenkat Lake, Sodium, Sphalerite, Strategic Minerals, Stream Sediments, Strontium, Sulfides, Sulfur, Tanana Quadrangle, Tantalum, Thallium, Thorium, Tin, Titanium, Tokusatatquaten Lake, Torment Creek, Tourmaline, Trace Elements, Trace Geochemical, Trace Metals, Trans-Alaska Pipeline, Tungsten, Upper Ray Hot Springs, Uranium, Vanadium, Ytterbium, Zeunerite, Zinc, Zirconium, geoscientificInformation, Fewer tags Zircon U-Pb and 40Ar/39Ar results from dikes collected within the Bruin Bay fault zone, lower Cook Inlet This data release presents zircon U-Pb LA-ICP-MS geochronology from igneous rocks exposed in a coastal exposure at Ursus Head, Iliamna C-2 Quadrangle. Sills and dikes exposed in a coastal exposure at Ursus Head are deformed within the Bruin Bay fault zone. Common dikes intruding late Triassic Kamishak Formation strata composing the hanging-wall of the Bruin Bay fault are cut by numerous small-scale, low-angle, bedding-parallel, and high angle contractional faults. Sample 09MAW006A collected from one of many dikes deformed in the fault zone produced a uni-modal distribution of zircon ages of with a weighted mean of 206.92 +/-0.96 (2 sigma, n=47) and an MSWD of 1.1. Sample 09BG020C collected from a sill of more mafic... Tags: 40Ar/39Ar, Age Dates, Analyses, Analyses and Sampling, Analytical Lab Results, All tags... Analytical Results, Ar-Ar, Bedrock, Bedrock Geology, Contact Point, Cook Inlet, Cook Inlet Basin, Fault Displacement, Geochronology, Geologic, Geology, Igneous, Iliamna Quadrangle, Isotopes, Lab Methods, Lead, Methods, Naknek, Plagioclase, Rocks, Sample Location, Stratigraphy, Structural Geology, Structure, Tectonics, U-Pb, Uranium, Ursus Head, Volcanic, Volcanic Rocks, Zircon, geoscientificInformation, Fewer tags U-Pb and Lu-Hf isotope, age, and trace-element data from zircons at four sites in the western Alaska Range and Talkeetna Mountains, Alaska This Division of Geological & Geophysical Surveys (DGGS) Raw Data File presents U-Pb geochronology and Lu-Hf isotopic compositions, age-dating results, and additional trace-elemental composition of zircons from four granitoids sampled during investigations by DGGS geologists in the western Alaska Range and the Talkeetna Mountains. The purpose of the Lu-Hf and U-Pb isotopic study was to better understand the Jurassic through early Tertiary magmatic and tectonic evolution of the Alaska Range and the significance of that magmatism for the formation of metallic mineral deposits. The U-Pb isotopic data also serve to further refine the crystallization age of plutons, which were previously ambiguous in 40Ar/39Ar geochronology... Tags: Age Dates, Alaska Range, Analyses, Analyses and Sampling, Analytical Lab Results, All tags... Analytical Results, Bedrock, Geochemistry, Geochronology, Geologic, Geology, Geophysics, Granite, Hafnium, Isotopes, Lab Methods, Lead, Lime Hills Quadrangle, Lutetium, Methods, Mineralogy, Minerals, Plutonic, Plutons, Resources, Rocks, STATEMAP Project, Talkeetna Mountains, Talkeetna Mountains Quadrangle, Trace Elements, U-Pb, Uranium, Zircon, geoscientificInformation, Fewer tags Major-oxide, minor-oxide, and trace-element geochemical data from rocks in the Styx River area, Lime Hills C-1 Quadrangle, Lime Hills, McGrath, Talkeetna, and Tyonek quadrangles, Alaska Geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) Mineral Resources Section conducted four weeks of helicopter-supported mapping and fieldwork from June 26 through July 24, 2013. The Styx River project in the Lime Hills C-1 Quadrangle was part of the State-funded Airborne Geophysical/Geological Mineral Inventory (AGGMI) program as part of the State's Strategic Minerals Assessment Project, an initiative designed to evaluate Alaska's potential for rare-earth elements, PGEs, and other similarly supply-challenged resources. The Styx River project area has active and ongoing mineral exploration for deposit types including porphyry copper/molybdenum/gold, reduced intrusion-related gold, and... Tags: Alaska Range, Aluminum, Antimony, Arsenic, Barium, All tags... Basalt, Base Metals, Bedrock, Beryllium, Bismuth, Cadmium, Calcium, Cerium, Cesium, Chalcopyrite, Chlorite, Chromium, Cobalt, Copper, Critical Minerals, Dysprosium, Economic Geology, Erbium, Europium, Exploration, Felsic, Fluorine, Gadolinium, Galena, Gallium, Geochemical Data, Geochemical Surveys, Geochemistry, Geology, Germanium, Gold, Granite, Greisen, Hafnium, Heavy Metals, Holmium, Hornfels, Igneous Rocks, Iron, Lime Hills Quadrangle, Lode, Lutetium, Magnesium, Major Oxides, Manganese, McGrath Quadrangle, Metals, Mineral Assessment, Mineral Deposit, Mineral Localities, Mineral Resources, Minor Oxides, Molybdenum, Neodymium, Nickel, Niobium, Non-Metals, Palladium, Phosphorus, Platinum, Platinum Group Elements, Plutons, Potassium, Precious Metals, Promethium, Rubidium, Selenium, Silica, Silver, Sodium, Sphalerite, Strategic Minerals, Strategic and Critical Minerals Assessment Project, Strontium, Sulfides, Sulfur, Talkeetna Quadrangle, Tantalum, Thallium, Thorium, Tin, Titanium, Tourmaline, Trace Elements, Trace Metals, Tungsten, Tyonek Quadrangle, Uranium, Vanadium, Volcanic, Zinc, Zirconium, geoscientificInformation, Fewer tags Geochemical major-oxide, minor-oxide, trace-element, and rare-earth-element data from rocks and streams sediments collected in 2012 in the Ray Mountains area, Beaver, Bettles, Livengood, and Tanana quadrangles, Alaska Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a helicopter-supported geological and geochemical resource assessment project in the Beaver, Bettles, Livengood, and Tanana quadrangles from June 23 through August 5, 2012. The objectives of DGGS's resource assessment are to improve the trace-element geochemical coverage of selected watersheds; to obtain modern, quantitative geochemical analyses; to understand the petrogenesis of the granites; and to better document established mineral occurrences. Stream-sediment, pan-concentrate, and rock sampling were conducted as part of the State's Rare Earth Elements and Strategic Minerals Assessment project, which is... Tags: Aluminum, Antimony, Arsenic, Augen Gneiss, Barium, All tags... Basalt, Base Metals, Batholith, Beaver Quadrangle, Bedrock, Beryllium, Bettles Quadrangle, Bismuth, Bonanza Creek, Cadmium, Calcium, Caribou Mountain, Cerium, Cesium, Chalcopyrite, Chlorite, Chromium, Coal Creek, Cobalt, Copper, Critical Minerals, Dall River, Dalton Highway, Dysprosium, Economic Geology, Erbium, Europium, Exploration, Felsic, Fish Creek, Fleshlanana Creek, Fluorine, Fort Hamlin Hills, Gadolinium, Galena, Gallium, Geochemical Data, Geochemical Surveys, Geochemistry, Geology, Germanium, Gishna Creek, Gneiss, Gobblers Knob, Gold, Granite, Greisen, Hafnium, Halu Creek, Heavy Metals, Holmium, Hornfels, Igneous Rocks, Iron, Ishtalitna Creek, Kanuti Hot Springs, Kanuti Kilolitna River, Kanuti River, Kilo Hot Springs, Koyuk Mining District, Lanthanide Elements, Lanthanum, Livengood Quadrangle, Lode, Lower Ray Hot Springs, Lutetium, Magnesium, Major Oxides, Manganese, McQuesten Creek, Metabasite, Metals, Metamorphic Rocks, Metasedimentary rocks, Metavolcanic rocks, Mineral Assessment, Mineral Deposit, Mineral Localities, Mineral Resources, Minor Oxides, Molybdenum, Monazite, Mount Henry Eakin, Mount Tozi, Neodymium, Nickel, Niobium, No Name Creek, Non-Metals, Palladium, Pan Concentrates, Phosphorus, Placer, Placer Gold, Platinum, Platinum Group Elements, Potassium, Praseodymium, Precious Metals, Promethium, Prospect Creek, Rare Earth Elements, Ray Mountains, Ray River, Ray River Hot Springs, Ree, Resource Assessment, Resources, Rhyolite, Rubidium, Samarium, Scheelite, Schist, Selenium, Silica, Silver, Sithylemenkat Lake, Sodium, Soil Chemistry, Soil Sampling, Sphalerite, Strategic Minerals, Stream Sediments, Strontium, Sulfides, Sulfur, Tanana Quadrangle, Tantalum, Thallium, Thorium, Tin, Titanium, Tokusatatquaten Lake, Torment Creek, Tourmaline, Trace Elements, Trace Geochemical, Trace Metals, Trans-Alaska Pipeline, Tungsten, Upper Ray Hot Springs, Uranium, Vanadium, Volcaniclastics, Ytterbium, Zeunerite, Zinc, Zirconium, geoscientificInformation, Fewer tags Zircon U-Pb and 40Ar/39Ar results from dikes collected within the Bruin Bay fault zone, lower Cook Inlet This data release presents 40Ar/39Ar step-heating geochronology results from rocks collected roughly 7 km southwest of Contact Point, Iliamna B-3 Quadrangle. Samples obtained from a felsic dike intruding the principal Bruin Bay fault plane near Contact Point produced biotite and plagioclase 40Ar/39Ar ages of 36.5 +/- 0.8 Ma and 31.5+/-0.7 Ma, respectively. The age dates inform stratigraphic, structural, and geochronologic studies along the western margin of lower Cook Inlet basin. The accompanying report also presents zircon U-Pb LA-ICP-MS geochronology results for dikes near Ursus Head. Tags: 40Ar/39Ar, Age Dates, Analyses, Analyses and Sampling, Analytical Lab Results, All tags... Analytical Results, Ar-Ar, Bedrock, Bedrock Geology, Contact Point, Cook Inlet, Cook Inlet Basin, Fault Displacement, Geochronology, Geologic, Geology, Igneous, Iliamna Quadrangle, Isotopes, Lab Methods, Lead, Methods, Plagioclase, Rocks, Sample Location, Stratigraphy, Structural Geology, Structure, Tectonics, U-Pb, Uranium, Ursus Head, Volcanic, Volcanic Rocks, Zircon, geoscientificInformation, Fewer tags