Found 56 datasets matching "Isotopic age".
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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: 105.36 | Views last month: 3 -
This dataset contains a list of geologic station localities on St. Lawrence Island, Alaska, from which thin section samples were examined. The dataset also contains U-Pb isotopic data and ages of...
Search relevance: 104.16 | Views last month: 0 -
This dataset accompanies planned publication 'Paleogene mid-crustal intrusions in the Ruby Mountains Metamorphic Core Complex, northeastern Nevada' [IP-153033], to be published in Geosphere, as...
Search relevance: 98.51 | 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: 79.67 | 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: 78.26 | Views last month: 0 -
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: 72.19 | Views last month: 0 -
This dataset accompanies planned publication 'Lava-ice interactions at late Pleistocene trachyte-basaltic andesite fissure eruptions, Quetrupillán Volcanic Complex (39°30′ S, 71°43′ W), southern...
Search relevance: 70.12 | Views last month: 2 -
Tables of U- and Th-isotopic data used to calculate uranium-series age estimates and initial 234U/238U activity ratios as well as 87Sr/86Sr, δ13C, and δ18O for samples of phreatic speleothems from...
Search relevance: 58.73 | Views last month: 0 -
This dataset includes tables of He-isotopic data used to calculate surface exposure ages for samples of basalt, and U- and Th-isotopic data used to calculate uranium-series age estimates (230Th/U...
Search relevance: 57.73 | Views last month: 0 -
This data release consists of new USGS-generated detrital zircon and sandstone petrography data from the Geosphere paper "Peri-Gondwanan-derived sediment in the Arkoma Basi from the north: The...
Search relevance: 56.57 | Views last month: 0 -
This data set contains tables containing uranium-lead (U-Pb) isotopic data and the crystallization age of zircon from a metamorphic rock from the Manzano Mountains, New Mexico, collected in 2005....
Search relevance: 56.00 | Views last month: 0 -
This dataset includes tables of stratigraphic age-depth information for Paisley Caves 2 and 5, in Oregon U.S.A., along with tables of stable and strontium isotopic data for fish remains and...
Search relevance: 53.09 | Views last month: 0 -
This dataset contains major and trace element geochemical data and 40Ar/39Ar isotopic data and ages for rock samples collected during 2016 fieldwork in Glacier Bay National Park and Preserve. The...
Search relevance: 52.66 | Views last month: 1 -
This dataset includes tables of U- and Th-isotopic data used to calculate uranium-series age estimates (230Th/U method) and initial 234U/238U activity ratios for samples of pedogenic carbonate...
Search relevance: 52.53 | 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: 52.50 | 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: 52.19 | Views last month: 0 -
Recent studies have shown the oxygen isotopic composition (δ18O) of modern terrestrial gastropod shells is determined largely by the δ18O of precipitation. This implies that fossil shells could be...
Search relevance: 51.34 | 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: 50.83 | Views last month: 0 -
This data release includes whole rock geochemical data, and uranium-lead isotopic data collected by both Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Sensitive High...
Search relevance: 50.39 | Views last month: 0 -
This data release documents three Microsoft Excel tables; one contains noble gas isotopic data, one contains data for understanding groundwater ages in the South Rim of the Grand Canyon, and one...
Search relevance: 49.19 | Views last month: 0
