Results 11 to 20 of about 53,167 (298)

Geochemical and Sr-Nd-Os Isotopic Characteristics of Middle Silurian Volcanic Rocks in Northwest of the Xiemisitai Mountains, West Junggar and Its Tectonic Implications

Yankuang ceshi, 2017
Volcanic rocks in the Xiemisitai Mountains, in Northwest Junggar were recently considered to form in the Silurian rather than the Devonian period. However, the characteristic and tectonic setting of Middle Silurian volcanic rocks in this area are poorly ...
CHEN Jia-fu, MA Xu, LI Chao, QU Wen-jun, DU Hou-yuan, ZHAO Ran, HAN Bao-fu   +6 more
doaj   +1 more source

Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Frontiers in Chemistry, 2021
The recent advances in analytical methods of Re-Os and PGE in geological materials including sample dissolution, chemical separation, mass spectrometric determinations, as well as the developments of matrix-matched reference materials for data quality ...
Zhuyin Chu, Zhuyin Chu
doaj   +1 more source

Heterogeneous Os isotope compositions in the Kalatongke sulfide deposit, NW China: the role of crustal contamination [PDF]

, 2012
Re-Os isotope compositions of mantle-derived magmas are highly sensitive to crustal contamination because the crust and mantle have very different Os isotope compositions.
Gao, JF, Lightfoot, PC, Qu, W, Zhou, MF
core   +1 more source

Mineral separation protocol for accurate and precise rhenium-osmium (Re-Os) geochronology and sulphur isotope composition of individual sulphide species

MethodsX, 2020
A temporal framework for mineral deposits is essential when addressing the history of their formation and conceptualizing genetic models of their origin.
N.J. Saintilan, D. Selby, J.W. Hughes, D. Schlatter, J. Kolb, A. Boyce   +5 more
doaj   +1 more source

The Constraints of Carbonaceous Mudstone Re-Os and Detrital Zircons U-Pb Isotopic Dating on the Diagenetic and Metallogenic Ages from the Dabaoshan Copper Deposit in Guangdong Province

Yankuang ceshi, 2022
BACKGROUND With the development of high-precision negative thermal ionization mass spectrometry (N-TIMS) technology, Re-Os isotopic dating of carbonaceous mudstone is more and more widely used in the determination of sedimentary age. The controversy over
LIU Wusheng, ZHAO Hong, ZHAO Ruyi, QIN Jinhua, ZHANG Xiong, JIANG Jinchang, ZHAO Chenhui, LI Tingjie, WANG Chenghui   +8 more
doaj   +1 more source

Re-Os isotope and platinum group elements of a FOcal ZOne mantle source, Louisville Seamounts Chain, Pacific ocean [PDF]

, 2015
The Louisville Seamount Chain (LSC) is, besides the Hawaiian-Emperor Chain, one of the longest-lived hotspot traces. We report here the first Re-Os isotope and platinum group element (PGE) data for Canopus, Rigil, and Burton Guyots along the chain, which
Akira Ishikawa, Barnes, Becker, Beier, Bennett, Bezos, Brandon, Bryce, Burton, Chazey, Cheng, Cohen, Courtillot, Dale, Day, Eisele, Farley, Fischer-Gödde, Fitton, Fitton, Fleet, Gaffney, Godfrey Fitton, Hanan, Hanyu, Hanyu, Hart, Hauri, Hawkins, Ireland, Ishikawa, Jackson, Jackson, Jamais, Katsuhiko Suzuki, Kellogg, Koppers, Koppers, Koppers, Lassiter, Lassiter, Lassiter, Lee, Lonsdale, Luguet, Mahoney, Mahoney, Maria Luisa G. Tejada, Martin, Martin, Meisel, Meisel, Mungall, Nichols, Norman, Palme, Peucker-Ehrenbrink, Peucker-Ehrenbrink, Pitcher, Rebecca Williams, Reisberg, Reisberg, Roy-Barman, Ryoko Senda, Schiano, Schiano, Sen, Shinotsuka, Sobolev, Sobolev, Stracke, Takeshi Hanyu, Tatsumi, Tatsumi, Tejada, Tejada, Tejada, Tejada, Vanderkluysen, Walker, Watts   +80 more
core   +1 more source

Study on the Causes for ICP-MS Signal Intensity Declination of Os Water Absorption Liquid

Yankuang ceshi, 2018
BACKGROUND Os can be separated from the sample matrix by distillation, and the absorbing liquid can be introduced into ICP-MS directly, which is a key step of the molybdenite Re-Os isotopic age analysis.
ZHOU Li-min, LI Chao, LI Xin-wei, ZHAO Hong, QU Wen-jun, DU An-dao   +5 more
doaj   +1 more source

The possible existence of Hs in nature from a geochemical point of view [PDF]

, 2006
A hypothesis of the existence of a long-lived isotope 271Hs in natural molybdenites and osmirides is considered from a geochemical point of view. It is shown that the presence of Hs in these minerals can be explained only by making an additional ad hoc ...
A. D. Brandon, A. D. Smith, A. Meibom, A. Meibom, A. Narinov, A. Sobiczewski, A. V. Ivanov, A. V. Ivanov, Ch. E. Düllmann, D. L. Anderson, D. Selby, G. R. Foulger, G. Royer, H. J. Stein, H. J. Stein, H. Meier, J. G. Raith, J. M. Bird, J. Morris, J. P. Davidson, J. V. Kratz, K. A. Petrzhak, R. D. Cherry, R. Eichler, R. Gentry, R. J. Walker, R. J. Walker, S. Hofmann, S. V. Balyshev, T. V. Galashvili, V. P. Perelygin, W. M. White, Yu. Oganessian   +32 more
core   +2 more sources

Re-Os isotope geochemistry of three Chinese chondrites

Chinese Science Bulletin, 2007
Three Chinese ordinary chondrites, including Jilin (H5), Boxian (LL3.8) and Lujiang (LL6), have been studied for their Re and Os abundances and Os isotopic composition in whole-chondrite samples, separated magnetic and nonmagnetic fractions, and nodules. The results indicate that the Re and Os abundances of the whole-chondrite samples are in the ranges
XiaChen Zhi, Xie Qin, RenDeng Shi, JiAn Hong   +3 more
openaire   +1 more source

Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach [PDF]

Ore Geology Reviews, 2017
The Andean IOCG clan in the Coastal Cordillera of northern Chile, comprises the iron oxide-Cu-Au sensu stricto, the iron oxide-apatite (IOA), and the stratabound Cu(− Ag) deposits, also known as Manto-type Cu(− Ag) deposits. IOCGs and Manto-type deposits constitute the second source of copper in Chile, after porphyry Cu-Mo systems, whereas IOAs are an ...
Barra Pantoja, Fernando, Reich Morales, Martín, Selby, David, Rojas, Paula, Simon, Adam C., Salazar, Eduardo, Palma, Gisella   +6 more
openaire   +7 more sources