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Explore Search: Mass spectrometry

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Mg/Ca, Sr/Ca, and stable isotopes in modern and Holocene Protothaca staminea shells from a northern California coastal upwelling region

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Resolving global versus local/regional Pu sources in the environment using sector ICP-MS

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Drowning of the - 150 m reef off Hawaii: A casualty of global meltwater pulse 1A?

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Isotopic age of the Black Forest Bed, Petrified Forest Member, Chinle Formation, Arizona: An example of dating a continental sandstone

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Selected resin acids in effluent and receiving waters derived from a bleached and unbleached kraft pulp and paper mill

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Enantiomeric composition of chiral polychlorinated biphenyl atropisomers in aquatic bed sediment

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Pesticides in surface water measured at select sites in the Sacramento River basin, California, 1996-1998

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Revised Ages for Laminated Sediment and a Holocene-Marker Diatom from the Northern California Continental Slope

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Argon geochronology data from the Austroalpine-Pennine boundary, Central Alps, Switzerland

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Simultaneous speciation of arsenic, selenium, and chromium: species, stability, sample preservation, and analysis of ash and soil leachates

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Rhenium-osmium isotope systematics of carbonaceous chondrites

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Simultaneous speciation of arsenic, selenium, and chromium: Species stability, sample preservation, and analysis of ash and soil leachates

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Radiocarbon and cation-radio ages for rock varnish on Tioga and Tahoe marainal boulders of Pine Creek, eastern Sierra Nevada, California, and their paleoclimatic implications

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Radiocarbon dating of silica sinter deposits in shallow drill cores from the Upper Geyser Basin, Yellowstone National Park

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GHR1 Zircon – A new Eocene natural reference material for microbeam U-Pb geochronology and Hf isotopic analysis of zircon

Laboratory
Shared instrument lab

Denver Radiogenic Isotope Lab
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Investigation of magnesium isotope fractionation during basalt differentiation: Implications for a chondritic composition of the terrestrial mantle

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Mineralogical anomalies and their influences on elemental geochemistry of the main workable coal beds from the Dafang Coalfield, Guizhou, China

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Uranium-series dating of pedogenic silica and carbonate, Crater Flat, Nevada

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Environmental 90Sr measurements

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Identification of bomb-produced chlorine-36 in mid-latitude glacial ice of North America

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Radiocarbon ages of pre-bomb clams and the hard-water effect in Lakes Michigan and Huron

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Organic geochemistry of the 9.6 km Bertha Rogers No. 1. well, Oklahoma

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New insights into Arctic paleogeography and tectonics from U-Pb detrital zircon geochronology

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Precise determination of δ88Sr in rocks, minerals, and waters by double-spike TIMS: A powerful tool in the study of chemical, geologic, hydrologic and biologic processes

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Trace element contamination in feather and tissue samples from Anna’s hummingbirds

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Consequences of slow growth for 230Th/U dating of Quaternary opals, Yucca Mountain, NV, USA

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Calibrating Late Quaternary terrestrial climate signals: radiometrically dated pollen evidence from the southern Sierra Nevada, USA

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Coral ages and island subsidence, Hilo drill hole

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Rhenium-osmium concentration and isotope systematics in group IIAB iron meteorites

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