Results 31 to 40 of about 888,623 (212)

Rapid Purification of Sr and Nd for Isotope Analysis with Multiple-column Method

Yankuang ceshi, 2020
BACKGROUND The Sr and Nd isotopic compositions of a sample depend on its initial isotopic ratios, the ratios between the parent nuclide and daughter product, and the decay time.
ZHU Zhi-yong, PAN Chen-xu, ZHU Xiang-kun
doaj   +1 more source

Sr-Nd-Pb isotope systematics of fine sediments from the modern rivers in SW Japan: Implications for sediment provenance of the Northwest Pacific

Journal of Asian Earth Sciences: X, 2020
As reference data for comprehensive provenance analyses of deep-sea sediments in the Northwest Pacific region, we present Sr-Nd-Pb isotopic compositions of fine sediments sampled from 48 rivers in southwest Japan.
Yu Saitoh, Masaharu Tanimizu, Tsuyoshi Ishikawa   +2 more
doaj   +1 more source

Comparison and Optimization of Sr Isotope Analysis in Carbonate Rocks by Multiple-step Leaching Method

Yankuang ceshi, 2023
BACKGROUNDMarine sedimentary carbonate rock is an important carrier for recording seawater information. The Sr isotope composition (87Sr/86Sr) of carbonate rocks can reflect the relative contribution of the continental crust and mantle to the Sr isotope ...
Xu PAN, Ziwei SUN, Jiwei GAO, Hongmei GONG, Xiaohong WANG, Meng DUAN, Yuanyuan XIAO   +6 more
doaj   +1 more source

Direct Rubidium-Strontium Dating of Hydrocarbon Charge Using Small Authigenic Illitic Clay Aliquots from the Silurian Bituminous Sandstone in the Tarim Basin, NW China

Scientific Reports, 2019
Illitic clay is ubiquitous in clastic hydrocarbon reservoirs, and the host for several radiometric isotopes such as the potassium-argon (K-Ar) and rubidium-strontium (Rb-Sr) systems.
Shaojie Li, Xuan-Ce Wang, Chao-Feng Li, Simon A. Wilde, Youyu Zhang, Suzanne D. Golding, Keyu Liu, Yuxiang Zhang   +7 more
doaj   +1 more source

Conservation of 87Sr/86Sr During Wine-Making of White Wines: A Geochemical Fingerprint of Geographical Provenance and Quality Production

Frontiers in Environmental Science, 2020
The measuring of 87Sr/86Sr in wine, grape, and bioavailable soil fraction samples with the same uncertainty of geological materials allows fully comparing the whole wine-production chain with the peculiar geochemical isotope signature of any geographic ...
Ines Tescione, Ines Tescione, Martina Casalini, Sara Marchionni, Eleonora Braschi, Massimo Mattei, Sandro Conticelli, Sandro Conticelli   +7 more
doaj   +1 more source

Channelling of hydrothermal fluids during the accretion and evolution of the upper oceanic crust: Sr isotope evidence from ODP Hole 1256D

, 2015
ODP Hole 1256D in the eastern equatorial Pacific is the first penetration of a complete section of fast spread ocean crust down to the dike–gabbro transition, and only the second borehole to sample in situ sheeted dikes after DSDP Hole 504B.
M. Harris, R. Coggon, C. Smith-Duque, M. Cooper, J. Milton, D. Teagle   +5 more
semanticscholar   +1 more source

Natural Clinopyroxene Reference Materials for in situ Sr Isotopic Analysis via LA-MC-ICP-MS

Frontiers in Chemistry, 2020
Clinopyroxene is a major host mineral for lithophile elements in the mantle lithosphere, and therefore, its origin is vital for constraints on mantle evolution and melt generation. In situ Sr isotopic measurement of clinopyroxene has been available since
Han Zhao, Han Zhao, Han Zhao, Xin-Miao Zhao, Xin-Miao Zhao, Xin-Miao Zhao, P. J. Le Roux, Wen Zhang, Hao Wang, Hao Wang, Hao Wang, Lie-Wen Xie, Lie-Wen Xie, Lie-Wen Xie, Chao Huang, Chao Huang, Chao Huang, Shi-Tou Wu, Shi-Tou Wu, Shi-Tou Wu, Jin-Hui Yang, Jin-Hui Yang, Jin-Hui Yang, Fu-Yuan Wu, Fu-Yuan Wu, Fu-Yuan Wu, Yue-Heng Yang, Yue-Heng Yang, Yue-Heng Yang   +28 more
doaj   +1 more source

The IRHUM (Isotopic Reconstruction of Human Migration) database – bioavailable strontium isotope ratios for geochemical fingerprinting in France [PDF]

Earth System Science Data, 2014
Strontium isotope ratios (87Sr / 86Sr) are a key geochemical tracer used in a wide range of fields including archaeology, ecology, food and forensic sciences.
M. Willmes, L. McMorrow, L. Kinsley, R. Armstrong, M. Aubert, S. Eggins, C. Falguères, B. Maureille, I. Moffat, R. Grün   +9 more
doaj   +1 more source

Mg, Ca and Sr isotope dynamics in a small forested catchment underlain by paragneiss: The role of geogenic, atmospheric, and biogenic sources of base cations

Geoderma
Knowledge of the origin of magnesium (Mg) and calcium (Ca) in soil solutions and catchment runoff helps to predict forest ecosystems’ vulnerability to deficiencies in essential nutrients in an era of climate change, environmental pollution and bark ...
Martin Novak, Chris Holmden, Alexandre V. Andronikov, Yulia V. Erban Kochergina, James W. Kirchner, Tomas Paces, Vaclav Kachlik, Frantisek Veselovsky, Jakub Hruška, Frantisek Laufek, Magdalena Koubova, Marketa Stepanova, Eva Prechova, Ondrej Sebek, Jan Curik, Miroslav Tesar, Daniela Fottova, Irina E. Andronikova, Arnost Komarek   +18 more
doaj   +1 more source

Absolute frequency measurements on the 5s5p^{3}P_{0} → 5s6d^{3}D_{1} transition in strontium

Physical Review Research
We report the first absolute frequency measurements for the 5s5p^{3}P_{0}→5s6d^{3}D_{1} transition at 394 nm for all the stable strontium isotopes by utilizing repumping induced spectroscopy in a magneto-optical trap.
S. Zhang, B. S. Tiwari, S. Ganesh, Y. Singh, V. V. Flambaum   +4 more
doaj   +1 more source