Research Geologist
Geology, Geophysics, and Geochemistry Science Center
Email:
ctaylor@usgs.gov
Office Phone:
303-236-2499
Fax:
303-236-3200
ORCID:
0000-0001-6376-6298
Supervisor:
Eric D Anderson
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This data release presents the major and trace element chemistry of rock samples collected by the U.S. Geological Survey (USGS) from trenches, channel cuts, test pits, and surface exposures of the Dotson and I and L Zone rare earth element deposits at Bokan Mountain, located in the southern part of Prince of Wales Island, southeastern Alaska. Bokan Mountain was formed by an Early Jurassic peralkaline igneous complex that intruded into lower Paleozoic rocks of the Alexander terrane of southeast Alaska. The pluton and surrounding country rocks host numerous mineral deposits and occurrences, including heavy rare earth element (HREE)-rich pegmatites and felsic dikes, as well as mineral deposits rich in uranium, thorium,...
Categories: Data;
Tags: Alaska,
Alexander terrane,
Bokan Mountain,
Exploration,
GGGSC, All tags...
Geochemical surveys,
Geochemistry,
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
Igneous rocks,
Jurassic,
Kendrick Bay,
MRP,
Mesozoic,
Mineral Resources Program,
Mineral deposits,
Prince of Wales Island,
Prospecting,
Rare Earth Elements,
Southeast Alaska,
U.S. Geological Survey,
USA,
USGS,
USGS Science Data Catalog (SDC),
United States of America,
Uranium,
geoscientificInformation, Fewer tags
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Thirty-four ore, twenty-nine mine waste, seven host rock, two pegmatite, and one slag sample were collected from iron oxide-apatite (IOA) mines in the eastern Adirondack Highlands near Mineville and Ticonderoga, New York, from March 2016 to August 2018. The waste pile samples included twenty-five samples collected from rubble-sized mine waste piles and four samples from processed tailings piles. The ore from historic iron mines of the eastern Adirondack Highlands, New York, contain abundant quantities of rare earth element (REE)-bearing apatite crystals. These apatite crystals are especially enriched in Y, La, Ce, and Nd. In-ground ore, mine waste piles, and tailings piles could contain apatite...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Adirondack Mountains,
Energy Resources,
Geochemistry,
ICP-MS,
ICP-OES, All tags...
Mineville,
New York,
Ticonderoga,
USGS Science Data Catalog (SDC),
WDXRF,
apatite,
geochemistry,
iron,
mine tailings,
mine waste,
mineral resources,
rare earth elements,
tailing piles, Fewer tags
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This data release presents the major and trace element chemistry of rock samples collected by the U.S. Geological Survey (USGS) from surface exposures of the Dora Bay igneous complex (DBIC), located in the southern part of Prince of Wales Island, southeastern Alaska. The DBIC is Early Jurassic in age (Bala and others, 2014) and is U-Th-heavy rare earth element (HREE)-enriched like the Bokan Mountain intrusive complex 30 km to the south (Philpotts and others 1998; Dostal and others, 2011; Taylor and others, 2016; 2017). However, the DBIC is significantly less-well-mineralized and is under-explored due to complicated private land status issues. HREE-enriched eudialyte-bearing pegmatites and felsic dikes have been...
Categories: Data;
Tags: Alaska,
Alexander terrane,
Dora Bay,
Economic Geology,
Exploration, All tags...
Fluorite,
Geochemical surveys,
Geochemistry,
Geochemistry,
ICP-MS,
ICP-OES,
Igneous rocks,
Jurassic,
MRP,
Mesozoic,
Mineral Resources,
Mineral Resources Program,
Mineral deposits,
Mineral resources,
Molybdenite,
Prince of Wales Island,
Prospecting,
Rare Earth Elements,
Southeast Alaska,
Thorium,
USA,
USGS,
USGS Science Data Catalog (SDC),
United States Geological Survey,
United States of America,
Uranium,
WDXRF,
inductively coupled plasma-mass spectrometry,
inductively coupled plasma-optical emission spectrometry,
wavelength dispersive X-ray fluorescence spectrometry, Fewer tags
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This data release provides electron microprobe geochemical data that was collected as part of a scoping study to evaluate whether unconventional critical element resources may be associated with sediment-hosted copper systems in the Midcontinent Rift. We report abundances of trace elements in native copper and sulfide minerals in 12 thin sections from samples of the Mesoproterozoic lower Nonesuch Formation that were collected from underground exposures in the White Pine deposit. Approximately 350 spots were analyzed for Cu, Pb, Zn, Fe, Ni, Co, As, Sb, Ag, Hg, and S. The electron microprobe data were collected by personnel of the Central Region Minerals Program in Denver, Colorado, for the U.S. Geological Survey...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Ag,
Antimony,
Arsenic,
As,
Central Region Minerals Program, All tags...
Co,
Cobalt,
Copper,
Cu,
Economic Geology,
Fe,
GGGSC,
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
Hg,
Iron,
Keweenaw Peninsula,
Lead,
MRP,
Mercury,
Michigan,
Midcontinent Rift,
Mineral Resources,
Mineral Resources Program,
Ni,
Nickel,
Ontonagon County,
Pb,
S,
Sb,
Silver,
Sulfur,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
White Pine,
White Pine Mine,
White Pine sediment-hosted copper deposit,
Zinc,
Zn,
chemical analysis,
critical elements,
electron microprobe,
geochemistry,
geoscientificInformation,
mineral chemistry,
mineral resources,
mineral resources,
mineralogy,
sediment-hosted copper, Fewer tags
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