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Location Folder Show Tree ROOT _ScienceBase Catalog __Alaska Science Center (ASC) ____Geology & Natural Hazards Sediment Transport Data from the Totatlanika River, Alaska, August 2021 Filters Date Types (for Date Range) Contacts Alaska Science Center Alaska Division of Geological & Geophysical Surveys John N Aleinikoff Cynthia Dusel-Bacon USGS ScienceBase Team More... Categories Data (2) Tag Types Place (2) Theme (2) USGS Scientific Topic Keyword (2) Harvest Set (2) Tag Schemes Alaska Division of Geological & Geophysical Surveys (1) NASA GCMD Earth Science Keyword Thesaurus (1) USGS Thesaurus (1) USGS Geographic Names Information System (GNIS) (1) ISO 19115 Topic Category (2) View Results as: JSON ATOM CSV Browse Folder

Seward Peninsula Airborne Electromagnetic Survey, Kigluiak, Bendeleben, and Darby Mountains Seward Peninsula airborne electromagnetic survey, Kigluiak, Bendeleben, and Darby Mountains, Geophysical Report 2024-2, covers parts of the Teller, Bendeleben, Nome, and Solomon 1:250,000-scale U.S. Geological Survey (USGS) quadrangles on the Seward Peninsula north of Nome, Alaska. Time-domain electromagnetic data were collected with the SkyTEM 306HP system, which was towed by a helicopter, from September 8 to October 3, 2023, and from June 5 to July 18, 2024. A total of 4,330-line kilometers (km) were collected covering 4,817 km2. The survey was flown with semi-parallel lines spaced approximately 1 km apart and oriented perpendicular to regional geologic strike. Electromagnetic data were used to create resistivity... Categories: Data; Tags: Aeromagnetic, Aeromagnetic Data, Aeromagnetic Map, Aeromagnetic Survey, Airborne Geophysical Survey, All tags... Analytic Signal, Bendeleben Mountains, Bunker Hill, Central River, Chauik Mountain, Cobblestone River, Copper Mountain, Council Mining District, Crater Lake, DGGS, Darby Mountains, Exploration, Feather River, Fish River, Geologic, Geology, Geophysical Map, Geophysical Survey, Geophysics, Geophysics Search Tag, Grand Central River, Grand Singatook, Grass Valley, Gridded Data, Imuruk Basin, Kigluaik Mountains, Kougarok Mining District, Kougarok River, Koyuk Mining District, Kuzitrin Lake, Kuzitrin River, Libby River, Line Data, Magnetic Data, Magnetic Survey, Magnetics, Mineral Resources, Mosquito Pass, Mount Bendeleben, Mount Osborn, Mount Ost, Niukluk River, Nome Mining District, Nome River, Omiaktalik Lake, Omilak, Omilak Mountain, Pargon River, Pilgrim River, Pilgrim Springs, Port Clarence Mining District, Remote Sensing, Salmon Lake, Seward Peninsula, Sinuk, Sinuk River, Tigaraha Mountain, Tisuk River, Tubutulik River, USGS Science Data Catalog (SDC), White River, Wild Goose Pipeline, geoscientificInformation, Fewer tags Sulfide Electron Microprobe Analyses and Petrography of Mineralized Samples from the Stratabound Sheep Creek Sediment-Hosted Zn-Pb-Ag-Sn Prospect, and SHRIMP U–Pb Zircon Data for Metaigneous Rocks in the Bonnifield Mining District, Healy Quadrangle, Alaska This dataset contains 99 electron microprobe analyses of cassiterite, chalcopyrite, galena, pyrite, sphalerite, and tetrahedrite from seven Sheep Creek drill core samples and one outcrop; and a table that describes the textures, mineralogy, and rock type of 15 thin sections of Sheep Creek drill core and observations from our study and from drill core logging by industry. These data were used to compare this prospect with others in the Bonnifield district. The dataset also contains tables of sensitive high-resolution ion microprobe (SHRIMP) U-Pb zircon dates, zircon characteristics (crystal shape, external morphology, internal features, color, aspect ratio, and cathodoluminescence zoning), and 139 U-Th-Pb analyses... Categories: Data; Tags: Age determinations, Alaska, Bonnifield, Electron microprobe, GeoScientificInformation, All tags... Geochemistry, Geochronology, Healy, Igneous rocks, Isotopes, Isotopic analysis, Metamorphic rocks, Mineral Resources, Mineral chemistry, Radioactive elements, Radiometric dating, Sulfide petrography, U-Pb geochronology, USGS Science Data Catalog (SDC), Uranium-lead analysis, Uranium-thorium analysis, Fewer tags