Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in 2010 in the Tolovana mining district, Livengood B-3 and B-4 quadrangles, Alaska

Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geological field survey, including mapping and sampling near Livengood in the Livengood B-3 and B-4 quadrangles, Alaska from June 10 to June 30, 2010. The fieldwork provides basic information critical to building an understanding of Alaska’s geology and is part of an integrated program of airborne geophysical surveys followed by geological mapping. During 2010, 130 rock samples were collected for geochemical trace-element analysis, and 20 rock samples were collected for whole rock (major- and minor-oxide) analysis. Petrogenetically important trace elements for additional rock samples will be analyzed and published...

Tags: Alaska, State of, Brooks Creek, Cascaden Ridge, Cleary Creek, Eagle Creek, All tags... Elliot Highway, Ester Creek, Geochemistry, Livengood, Livengood Creek, Livengood Quadrangle, Major Oxides, McCord Creek, Minor Oxides, Olive Creek, Ranney Hollow, Shorty Creek, Slate Creek, Steel Creek, Tolovana Hot Springs, Tolovana Hot Springs Dome, Tolovana River, Trace Metals, Trans-Alaska Pipeline, West Fork Tolovana River, Wilber Creek, Winter Creek, geoscientificInformation, Fewer tags

Geologic map of the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska

The Alaska Division of Geological & Geophysical Surveys (DGGS), in partnership with the U.S. National Cooperative Geologic Mapping Program, mapped approximately 450 mi2 of the Talkeetna Mountains region of central Alaska at 1:50,000 scale over the course of six weeks in 2014. This area contains significant exposures of Late Triassic mafic volcanics and gabbro sills that have been the focus of region-wide exploration for the Strategic and Critical platinum-group elements (PGEs). The area also exposes numerous inactive and possibly active faults which project through the area of proposed hydropower development. The resulting geologic map offers an improved understanding of the geology, structural history, and mineral...

Tags: 40Ar/39Ar, Aerial Geology, Aerial Photography, Alluvial, Alluvial Deposits, All tags... Amphibolite Facies Units, Bedrock Geologic Map, Bedrock Geology, Brachiopods, Cleary Creek, Colluvial Deposits, Cordilleran Ice Sheet, Crinoids, Esker, Faulting, Faults, Floodplain, Fluvial, Fossils, Geochronology, Geologic Map, Geologic Materials, Geomorphology, Glacial, Glacial Deposits, Glacial Drift, Glacial Geology, Glacial Geomorphology, Glacial History, Glacial Lake, Glacial Processes, Glacial Stratigraphy, Glaciation, Ice Contact Deposits, Ice-Contact, Iron Creek, Lacustrine, Lacustrine Sedimentation, Landslide, Landslide Deposit, Outwash, Outwash Fan, Paleochannel, Permafrost and Periglacial, Remote Sensing, Rock Glaciers, Rock-Glacier Deposits, Rockfall, STATEMAP Project, Sand and Gravel, Slides, Slope Instability, Soil Creep, Stephan Lake, Surficial, Surficial Geologic Map, Surficial Geology, Talkeetna Mountains, Talkeetna Mountains Quadrangle, Talkeetna River, Till, geoscientificInformation, Fewer tags