Results 111 to 120 of about 16,800 (234)
The North American Repository for Archaeological Isotopes
Scientific DataHere, we present the North American Repository for Archaeological Isotopes (NARIA), the largest open-access compilation of previously reported isotopic measurements (n = 28,374) from bioarchaeological samples in North America (i.e., Canada, Greenland ...
Traci N. Billings +7 more
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Potential of Geo-neutrino Measurements at JUNO
, 2016 The flux of geoneutrinos at any point on the Earth is a function of the abundance and distribution of radioactive elements within our planet. This flux has been successfully detected by the 1-kt KamLAND and 0.3-kt Borexino detectors with these ...
Cao, Jun +5 more
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Археология евразийских степейThis study analyzes the ratios of strontium isotopes, and stable isotopes of nitrogen and carbon, in samples from human and animal remains originating from multicultural sites in the Orenburg Urals region dating to the end of the Middle and the beginning
Lidiya V. Kuptsova, Maria B. Mednikova
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Partial radiogenic heat model for Earth revealed by geoneutrino measurements [PDF]
, 2011 The Earth has cooled since its formation, yet the decay of radiogenic isotopes, and in particular uranium, thorium and potassium, in the planet’s interior provides a continuing heat source. The current total heat flux from the Earth to space is 44:2±1.0
Dwyer, D. A. +3 more
core
Revista Mexicana de Ciencias Geológicas, 2018 Petrography, major (including four trace elements), stable isotopes (carbon and oxygen), and 87Sr/86Sr geochemistry of limestones of the Shahabad Formation, Bhima basin, Karnataka, southern India are reported.
Ramasamy Nagarajan +4 more
doaj
Stored mafic/ultramafic crust and early Archean mantle depletion [PDF]
Both early and late Archean rocks from greenstone belts and felsic gneiss complexes exhibit positive epsilon(Nd) values of +1 to +5 by 3.5 Ga, demonstrating that a depleted mantle reservoir existed very early.
Chase, Clement G., Patchett, P. J.
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Detrital Input Sustains Diatom Production off a Glaciated Arctic Coast
Geophysical Research LettersIn the Arctic and subarctic oceans, the relatively low supply of silicon (compared to other nutrients) can make it limiting for the growth of diatoms, a fundamental building block of the oceanic food web.
Hong Chin Ng +6 more
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Radiogenic age and isotopic studies: report 7
, 1993 Granulite facies ortho- and paragneisses and felsic intrusive rocks form the crystalline core of the Boothia Uplift, which extends northward from Boothia Peninsula into the Arctic Archipelago. The rocks dated come from northern Boothia Peninsula, western Somerset Island, and eastern Prince of Wales Island, between 71 °N and 74°N.
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Radiogenic age and isotopic studies: Report 2
, 1988 Numerical error analysis is applied to typical 40Ar/39Ar data. It extends previous error treatments to al! possible variables used in the calculation of ages of samples and shows that in some cases minor corrections may contribute significantly to age uncertainties.
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Radiogenic age and isotopic studies: report 5
, 1992 U-Pb zircon ages of 2658.0 + 1.21-0.8 Ma and 2661 .3 +l.21-1.1 Ma were determined for Je/sic volcanic rocks in the Russell Lake and Clan Lake areas, respective/y, in the southwestern Slave Province. These are some of the youngest supracrustal rocks dated thus far in the Slave Province.
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