The Kuh-e-Surmeh mineralization, a carbonate-hosted Zn-Pb deposit in the Simply Folded Belt of the Zagros Mountains, SW Iran |
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Authors: | S Liaghat F Moore M Jami |
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Institution: | (1) Department of Geology, Shiraz University, Shiraz, Iran e-mail: Liaghat@geology.susc.ac.ir Fax: +011-98-7120027, IR |
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Abstract: | The Kuh-e-Surmeh carbonate-hosted zinc-lead deposit, located within the Simply Folded Belt of the Zagros Mountains in southwestern
Iran, is an orogen-related Mississippi Valley type deposit originally formed in the foreland Thrust Belt of the Zagros Mountains.
Structural and textural observations indicate that ore deposition took place as open-space fillings in brecciated carbonate
rock and as internal sediments consisting of fine-grained ore minerals interlayered with carbonates. The preferred genetic
model for the concentration of the ore metals is that of dewatering of the Zard-Kuh basin due to regional tectonic compaction
tectonism and expulsion of basin-derived fluids into the highly porous and brecciated dolomitized rocks of the Dalan Formation.
The metals precipitated from dense basinal brine (15 wt% equiv. NaCl) at low temperatures (less than 200 °C), typically within
strata of a Late Paleozoic carbonate platform.
Received: 21 July 1998 / Accepted: 20 August 1999 |
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