Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Isotope Geology of the Norilsk DepositsLead Isotopes

Isotope Geology of the Norilsk Deposits: Lead Isotopes [The discussed below results on Pb isotopic compositions have been obtained by both TIMS and LA-ICP-MS-MC techniques on sulphide and plagioclase mg-weight specimens and single grains correspondingly. General Pb isotopic compositions imply derivation from both, the mantle and crustal sources with the latter being dominant. The obtained results from the Talnakh intrusion notably discrepant from that of the Norilsk and Kharaelakh being less radiogenic, while the latter two cluster together, demonstrating a minor divergence between massive and disseminated ores. Analysis of 207Pb/204Pb versus δ34S along with Th/U assumes three sources of mantle, lower curst and upper crust, while Pb isotopes alone do not provide distinguishing of the massive ores from poor one. Disparity of Pb isotopes in sulphides and plagioclases assumes their chemical and isotopic disequilibrium, precluding their coexistence in a single batch of melt.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Isotope Geology of the Norilsk DepositsLead Isotopes

Download PDF
54 pages

Loading next page...
 
/lp/springer-journals/isotope-geology-of-the-norilsk-deposits-lead-isotopes-Fp0V9MrQEQ
Publisher
Springer International Publishing
Copyright
© Springer Nature Switzerland AG 2019. Translation from the Russian language edition Изотопная геология норильских месторождений, © Коллектив авторов 2017, © ФГБУ «Всероссийский научно-исследовательский геологический институт им. А. П. Карпинского» 2017. Published by Издательство ВСЕГЕИ. All Rights Reserved.
ISBN
978-3-030-05215-7
Pages
133 –187
DOI
10.1007/978-3-030-05216-4_5
Publisher site
See Chapter on Publisher Site

Abstract

[The discussed below results on Pb isotopic compositions have been obtained by both TIMS and LA-ICP-MS-MC techniques on sulphide and plagioclase mg-weight specimens and single grains correspondingly. General Pb isotopic compositions imply derivation from both, the mantle and crustal sources with the latter being dominant. The obtained results from the Talnakh intrusion notably discrepant from that of the Norilsk and Kharaelakh being less radiogenic, while the latter two cluster together, demonstrating a minor divergence between massive and disseminated ores. Analysis of 207Pb/204Pb versus δ34S along with Th/U assumes three sources of mantle, lower curst and upper crust, while Pb isotopes alone do not provide distinguishing of the massive ores from poor one. Disparity of Pb isotopes in sulphides and plagioclases assumes their chemical and isotopic disequilibrium, precluding their coexistence in a single batch of melt.]

Published: May 9, 2019

There are no references for this article.