Results 1 to 10 of about 4,093 (226)

Radiogenic isotopes in fluid inclusions

Lithos, 2001
Abstract Radiogenic isotopes studied in fluid inclusions are still a limited field, with great potential for expansion as analytical techniques improve. The main limitation for Sr, Ar and He isotope work is the very small number of radiogenic atoms produced in a typical fluid inclusion. The requirements to analysts are correspondingly high.
Igor M Villa
exaly   +3 more sources

Andean surface uplift constrained by radiogenic isotopes of arc lavas [PDF]

Nature Communications, 2018
Multiple complex tectonic and climatic processes have formed the Andes, which today provides a unique ecological niche. Here, Scott et al. investigate how the chemical composition of lavas from stratovolcanoes can be used to give insight on the uplift of
Erin M. Scott, Mark B. Allen, Colin G. Macpherson, Ken J. W. McCaffrey, Jon P. Davidson, Christopher Saville, Mihai N. Ducea   +6 more
doaj   +2 more sources

A database of radiogenic Sr–Nd isotopes at the “three poles” [PDF]

Earth System Science Data, 2022
The radiogenic isotope compositions of strontium (Sr) and neodymium (Nd) on the surface of the Earth are powerful tools for tracing dust sources and sinks on the Earth's surface.
Z. Du, J. Yang, L. Wang, N. Wang, A. Svensson, Z. Zhang, X. Ma, Y. Liu, S. Wang, J. Xu, C. Xiao   +10 more
doaj   +4 more sources

Radiogenic Isotopes and Mantle Evolution

, 2021
The radiogenic decay products of radioactive isotopes have been widely used to constrain the extent of compositional heterogeneity in Earth's mantle and the evolution of the silicate Earth.
Rob M. Ellam, Ellam, Rob M.
openaire   +2 more sources

A global survey of radiogenic strontium isotopes in river sediments

Chemical Geology, 2021
International audienceRadiogenic strontium isotopes are routinely used in provenance studies, but their application to sediments is often complicated by various grain size and weathering effects, which can influence measured 87Sr/86Sr ratios.
Germain Bayon, Nicolas Freslon, Ilya N Bindeman   +2 more
exaly   +2 more sources

Experimental evidence for mineral-controlled release of radiogenic Nd, Hf and Pb isotopes from granitic rocks during progressive chemical weathering

Chemical Geology, 2019
The role of accessory minerals in the incongruent release of Hf and Pb during continental weathering and its implications for the generation of distinct seawater isotope compositions is subject of debate.
Veit Daußmann, Marcus Gutjahr, Martin Frank   +2 more
exaly   +2 more sources

Radiogenic and stable isotope measurement using a MC-ICP-MS

Journal of Analytical Science and Technology, 2011
In this study, we presented newly developed analytical methods for radioactive, radiogenic, and stable isotopes using a multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS), where the elemental purification, and precision and accuracy
Min Seok Choi, Jong-Sik Ryu, Sin-Woo Lee, Chang-Sik Cheong, Hyung Seon Shin, Kwang-Sik Lee   +5 more
doaj   +1 more source

Non-nucleosynthetic heterogeneity in non-radiogenic stable Hf isotopes: Implications for early solar system chronology

Earth and Planetary Science Letters, 2010
Nucleosynthetic heterogeneity and secondary neutron capture reactions may have important implications for 176Lu–176Hf chronology and modelling of early planetary evolution.
Peter Sprung, Erik E Scherer, Dewashish Upadhyay   +2 more
exaly   +2 more sources

Provenance of clay-sized detrital sediments in the North Sea and the Skagerrak region based on radiogenic Nd-Sr-Hf isotopes and clay mineral compositions: assessing the impact of coastal and seabed erosion

Frontiers in Marine Science
The Skagerrak basin represents the main sink area for fine-grained sediment in the North Sea region and constitutes a natural deposition center for sediments that are supplied from the Atlantic, the Baltic Sea and the surrounding continental margins and ...
Timo Spiegel, Ed C Hathorne, Klaus Wallmann   +2 more
exaly   +3 more sources

Fractionation of radiogenic Pb isotopes in meteorites and their components induced by acid leaching

Geochimica Et Cosmochimica Acta
In this study we test the possibility that radiogenic 207Pb/206Pb ratios (207Pb*/206Pb*) in meteorites can be fractionated during partial dissolution, and explore the consequences of this fractionation for Pb-isotope chronology of meteorites.
Yuri Amelin, Qing-zhu Yin, Piers Koefoed   +2 more
exaly   +2 more sources