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Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a geological field survey, including mapping and sampling in the Chistochina mining district in the Mount Hayes A-2 and A-3 quadrangles, Alaska, from June 30 to July 15, 2009. 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 2009, 57 rock samples were collected for geochemical trace-element analysis, 107 rock samples were collected for whole rock (major- and minor-oxide and petrogenetically important trace elements) analyses, and 2 samples were collected...
Tags: Alaska Range,
Alaska, State of,
Chisna,
Chistochina Mining District,
Geochemical Data, All tags...
Geochemistry,
Major Oxides,
Minor Oxides,
Mount Hayes Quadrangle,
Platinum Group Elements,
STATEMAP Project,
Slate Creek (Mount Hayes),
Slate Creek Prospect,
Trace Elements,
Trace Metals,
geoscientificInformation, Fewer tags
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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
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Twenty-two igneous and metamorphic rock samples were collected in a 20-km-long swath centered on the Alaska Highway between Tetlin Junction, Alaska, and the Canada border. Igneous and metamorphic rock samples were submitted to the Apatite to Zircon, Inc. laboratory (A2Z), where zircon U-Pb age analysis, using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), was performed by Paul O'Sullivan. The 15 felsic plutonic rock samples and one gabbro sample yield Cretaceous zircon U-Pb weighted-mean ages ranging from 95.7 Ma to 106.2 Ma. Zircons from a metadiorite yield a Triassic weighted-mean age of about 241.9 Ma. Metamorphic zircons from two samples with felsic igneous protoliths yield Mississippian...
Tags: Age Dates,
Alaska Highway Corridor,
Analyses and Sampling,
Bedrock,
Bedrock Geology, All tags...
Detrital Zircon,
Geochronology,
Geology,
Igneous Rocks,
Isotopes,
Metamorphic Rocks,
Nabesna Quadrangle,
Tanacross Quadrangle,
U-Pb,
geoscientificInformation, Fewer tags
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Mineral Resources Section personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a geologic field survey, including mapping and sampling, in the eastern part of the Bonnifield mining district in the Fairbanks A-1 and A-2 and the Healy D-1 and D-2 quadrangles, Alaska, from June 16 through July 18, 2008. 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 geologic mapping. Specifically, this work provides geologic context for geophysical surveys conducted in 2006. Interpretation and synthesis of this data has been presented in professional and trade meetings....
Tags: Alaska Range,
Bedrock,
Chute Creek,
Dry Creek,
Dry Creek prospect, All tags...
Fairbanks Quadrangle,
Geologic,
Geology,
Glory Creek,
Glory Creek prospect,
Healy Quadrangle,
Igneous,
Igneous Rocks,
Kansas Creek,
Minerals,
Red Mountain Creek,
Rocks,
Rogers Creek,
STATEMAP Project,
Sedimentary Rocks,
Sheep Creek,
Slide Creek,
Snow Mountain Gulch,
WTF (Western Tundra Flats) prospect,
Wood River,
geoscientificInformation, Fewer tags
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The Preliminary Interpretive Report 2004-3B, "Bedrock geologic map of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska," is the bedrock geologic map of an approximately 123-square-mile area in the central Livengood Quadrangle, Alaska.
Tags: 40Ar/39Ar,
Alaska, State of,
Geochemistry,
Geochronology,
Geologic Map, All tags...
Geology,
Igneous Rocks,
K-Ar,
Livengood Bench,
Livengood Dome,
Livengood Mining District,
Livengood Quadrangle,
Metamorphic Rocks,
Money Knob,
Old Smoky Prospect,
Plutonic Rocks,
STATEMAP Project,
Sedimentary Rocks,
Sm-Nd Dates,
Tolovana Mining District,
geoscientificInformation, Fewer tags
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