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Volcanic-exhalative-sedimentary genesis of the Dapingzhang copper-polymetallic deposit, western Yunnan, China



Volcanic-exhalative-sedimentary genesis of the Dapingzhang copper-polymetallic deposit, western Yunnan, China



Dizhi yu Kantan = Geology and Prospecting 37(4): 5-8



The Dapingzhang copper-polymetallic deposit has a typical two-layer structure; it is composed of an upper massive sulfide orebody and a lower veinlet-disseminated sulfide orebody. Sulfides with framboidal and oolitic texture have been found in the massive sulfide ore. The deposit is similar in geological setting, metal and REE distribution patterns, sulfur isotopic composition, and fluid inclusion characteristics to the kuroko-type deposit and modern sulfide deposits in some sea-floor hydrothermal activity regions. This evidence suggests that metallogenesis was related to volcanic-exhalative-sedimentation processes.

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