Results 21 to 30 of about 16,929 (223)

The Use of Intrinsic Markers for Studying the Migratory Movements of Bats

open access: yesAnimals, 2021
Mortality of migratory bat species at wind energy facilities is a well-documented phenomenon, and mitigation and management are partially constrained by the current limited knowledge of bat migratory movements.
Caralie T. Brewer   +2 more
doaj   +1 more source

Cretaceous-to-recent record of elevated 3He/4He along the Hawaiian-Emperor volcanic chain [PDF]

open access: yes, 2004
Helium isotopes are a robust geochemical tracer of a primordial mantle component in hot spot volcanism. The high 3He/4He (up to 35 RA, where RA is the atmospheric 3He/4He ratio of 1.39 × 10−6) of some Hawaiian Island volcanism is perhaps the classic ...
Duncan, R. A.   +4 more
core   +1 more source

Impact of Climate Change on Past Indian Monsoon and Circulation: A Perspective Based on Radiogenic and Trace Metal Geochemistry

open access: yesAtmosphere, 2021
The Indian summer monsoon (ISM), one of the dramatic illustrations of seasonal hydrological variability in the climate system, affects billions of lives.
Harunur Rashid   +2 more
doaj   +1 more source

A Crustal Control on the Fe Isotope Systematics of Volcanic Arcs Revealed in Plutonic Xenoliths From the Lesser Antilles

open access: yesFrontiers in Earth Science, 2022
Lavas produced at subduction zones represent the integration of both source heterogeneity and an array of crustal processes, such as: differentiation; mixing; homogenisation; assimilation.
G. F. Cooper, E. C. Inglis
doaj   +1 more source

Comparison of γ-ray spectrometry and ICP-MS methods for measuring radioactive heat-producing elements of rocks: a case study on borehole samples from the Sichuan Basin, China [PDF]

open access: yes, 2017
We compared the consistency of γ-ray spectrometry and inductively coupled plasma mass spectrometry by analyzing measurement results of the radioactive heat-producing elements U, Th, and K from borehole samples.
Hu, Shengbiao   +3 more
core   +1 more source

Radiogenic power and geoneutrino luminosity of the Earth and other terrestrial bodies through time

open access: yes, 2020
We report the Earth's rate of radiogenic heat production and (anti)neutrino luminosity from geologically relevant short-lived radionuclides (SLR) and long-lived radionuclides (LLR) using decay constants from the geological community, updated nuclear ...
Enomoto S.   +6 more
core   +1 more source

A geoneutrino experiment at Homestake [PDF]

open access: yes, 2006
A significant fraction of the 44TW of heat dissipation from the Earth's interior is believed to originate from the decays of terrestrial uranium and thorium.
A. A. Kremenetsky   +30 more
core   +4 more sources

Insights into the Galápagos plume from uranium‐series isotopes of recently erupted basalts

open access: yesGeochemistry, Geophysics, Geosystems, 2011
Uranium‐series isotopes (238U‐230Th‐226Ra‐210Pb), major element, trace element, and Sr‐Nd isotopic data are presented for recent (
Heather K. Handley   +4 more
doaj   +1 more source

Lead and neodymium isotopic results from metabasalts of the Haveri Formation, southern Finland: Evidence for Palaeoproterozoic enriched mantle [PDF]

open access: yesBulletin of the Geological Society of Finland, 1999
Tholeiitic metabasalts and coexisting sulphides have been analysed for their Pb and Nd isotopic compositions from the Proterozoic Haveri Formation, which forms the basal unit of the Tampere Schist Belt in southern Finland. Ten whole rock samples analysed
M. Vaasjoki, H. Huhma
doaj   +1 more source

Tracing crustal contamination of the Cenozoic basalts with OIB-affinity in northern marginal region of North China Craton: An Os perspective

open access: yesChina Geology, 2021
The Cenozoic basalts with OIB-affinity in northern marginal region of the North China Craton are thought to experience minor even no crustal contamination during the magma evolution.
Zhuang Li, Bin Chen
doaj   +1 more source

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