Sulfur and Lead Isotopic Geochemistry of the Mayuan Pb-Zn deposit in Shanxi Province: Implications for ore-forming material source

DOI

10.2991/mmme-16.2016.90How to use a DOI?

Keywords

Mayuan; Mayuan Pb-Zn deposit; lead isotope; sulfur isotope; sources of ore-forming material

Abstract

Mayuan Pb-Zn ore deposit is tectonically located in the southeastern margin of the Beiba Arch in the northern of Yangtze Plat. Its orebodies occur in the Upper Sinian Dengying Formation dolomite. Sulfide minerals are selected from the deposit for sulfur and lead isotope compositional analyses. The 34S values of sulfide miner-als vary from 15.5% to 19.6% and the average is 17.67%, indicating that the sulfur was mainly derived from marine sulfate reduction and reduced sulfurs that were probably derived from thermo-chemical sulfate reduc-tion (TSR). The 206Pb/204Pb values vary from 17.62%~18.02% and the range is 0.4%, the 207Pb/204Pb values vary from 15.49~15.65% and the range is 0.16 , and the 208Pb/204Pb values vary from 37.57~38.35 , the range is 0.78 . The uniformity of lead isotope composition displays the same feature as normal lead. The Pb isotope compositions of these sulfide minerals are same to that of the upper crustal lead according to the Zartman diagrams and the - diagrams, implying that Pb may come from rocks in the Upper crust. Based on the geochemical characteristics of the sulfur and lead isotope compositions from the Mayuan Pb-Zn deposit, the ore –forming materials may derived from the basement.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - H. Wang
AU  - Y.S. Li
PY  - 2016/10
DA  - 2016/10
TI  - Sulfur and Lead Isotopic Geochemistry of the Mayuan Pb-Zn deposit in Shanxi Province: Implications for ore-forming material source
BT  - Proceedings of the 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering
PB  - Atlantis Press
SP  - 396
EP  - 398
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmme-16.2016.90
DO  - 10.2991/mmme-16.2016.90
ID  - Wang2016/10
ER  -