Constraints on the age and geodynamic setting of the iron formations and anhydrite Fe-(Ba) deposits in the Bulunkuole Group of the Taxkorgan area, NW China
Ore Geology Reviews(2021)
Abstract
•Bulunkuole Group (BG) and associated mineral deposits is both early Cambrian in age.•Volcanic-sedimentary rocks in the BG reveal a back-arc basin depositional setting.•Iron formations deposited in newborn back-arc basin from redox-stratified water column.•Anhydrite Fe-(Ba) deposits formed in restricted sulfate-rich water during back-arc basin collapse.
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Key words
Early Cambrian,Iron formation,Anhydrite Fe-(Ba) deposit,Geodynamic evolution,Bulunkuole Group,Taxkorgan area
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