Found 44 datasets matching "Uranium-thorium analysis".
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This data release contains three tables of U-Pb zircon isotopic data generated from analyses of 40 metaplutonic and metavolcanic rocks from the Yukon-Tanana Upland of western Yukon and...
Search relevance: 115.93 | Views last month: 0 -
Sample Analyses: Four samples of silica sinter from Giant and Castle Geysers compo sedof opal-A or opal-A/C were analyzed for U-Th isotopes at USGS laboratories in Denver, CO...
Search relevance: 115.31 | Views last month: 0 -
This dataset contains U-Pb isotopic data and ages, Hf isotope data, and trace element concentrations of zircon from igneous rocks collected from the Yukon-Tanana Upland, eastern Alaska. The sample...
Search relevance: 77.47 | Views last month: 0 -
This dataset contains U-Pb isotopic data and ages, Hf isotope data, and trace element concentrations of zircon from igneous rocks collected from the western Alaska Range of south-central Alaska....
Search relevance: 73.30 | Views last month: 0 -
Concentrations of major and trace elements as determined by chemical analysis of the less than 2-millimeter size fraction of bed-sediment and floodplain samples in the Tri-State Mining District,...
Search relevance: 66.41 | Views last month: 0 -
This dataset contains uranium–lead (U-Pb) isotopic data and ages, hafnium (Hf) isotope data, and trace element concentrations of zircon from igneous rocks collected from the Darby Mountains area...
Search relevance: 64.18 | Views last month: 0 -
This dataset includes four tables with isotopic data and ages for selected igneous bedrock samples collected in 2001 through 2003 from the Western Alaska Range, southcentral Alaska: (1) the...
Search relevance: 57.75 | Views last month: 0 -
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...
Search relevance: 56.15 | Views last month: 0 -
This data set contains fission track data and associated ages of apatite from igneous and sedimentary rocks, U-Pb isotopic data and associated ages of zircon from a subset of the igneous rock...
Search relevance: 55.33 | Views last month: 0 -
This data set contains U-Pb isotopic data and ages of zircon and titanite from igneous and metamorphic rocks collected from the western Alaska and northern Aleutian Range of south-central Alaska....
Search relevance: 55.31 | Views last month: 0 -
Smelter slag containing copper and other trace elements is widespread in riverbed sediment of the upper Columbia River (UCR) of the United States. To evaluate potential risk to aquatic life...
Search relevance: 54.67 | Views last month: 0 -
This dataset contains U-Pb isotopic data and associated ages of zircons within the lithologic framework of igneous, metaigneous, and metasedimentary rocks collected from the Seldovia quadrangle in...
Search relevance: 54.25 | Views last month: 0 -
This dataset contains U-Pb isotopic data and associated ages of zircons from selected igneous rocks collected from the region surrounding and including the uplands of the United States Territory...
Search relevance: 53.97 | Views last month: 3 -
Sediment traps were deployed in tributaries to the San Juan River during 2021 and 2022. These traps collected sediment during storm events that typically occur as monsoonal convective storms from...
Search relevance: 51.39 | Views last month: 0 -
Apatite [Ca5(PO4)3F], titanite [CaTiSiO5], and rutile [TiO2] samples were collected by the U.S. Geological Survey (USGS) from the Coles Hill uranium deposit, Virginia. The samples (in the form of...
Search relevance: 47.99 | Views last month: 0 -
Cassiterite (SnO2) samples were collected throughout the underground Sullivan Mine near Kimberley, British Columbia. Samples (in the form of mounted loose grains, polished thin sections, and rock...
Search relevance: 47.82 | Views last month: 0 -
This dataset contains U-Pb isotopic data and associated ages of detrital zircon from sedimentary and metasedimentary rocks collected from southwestern Alaska and from the Yukon-Tanana upland and...
Search relevance: 47.71 | Views last month: 0 -
Cassiterite (SnO2), a main ore mineral in tin deposits, was collected by multiple Russian geologists or obtained from museum collections in both the USA and Russia and dated at the U.S. Geological...
Search relevance: 47.12 | Views last month: 0 -
Zircon (ZrSiO4) and cassiterite (SnO2) samples were collected by the U.S. Geological Survey (USGS) from the Yazov Granite, Transbaikalia region, Eastern Siberia, Russia. Samples (in the form of...
Search relevance: 46.43 | Views last month: 0 -
Cassiterite (SnO2) samples were collected from alluvial ore concentrate from the Abu Dabbab Granite in eastern Egypt. Samples (in the form of mounted loose grains) were prepared and analyzed for...
Search relevance: 46.11 | Views last month: 0
