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- W2363439108 abstract "Structures are developed in Rencha Basin.Among them the volcanic rock roof,fragmentized belt and basement groove are closely related to mineral deposit.The compositions of acid(somewhat alkaline) volcanic rocks are characterized by Al-supersaturation and Si-rich while depleted in Ca and Mg.The content of uranium in host rocks is comparatively high(almost 10 times higher than its clarke value),with an average background value of 38×10-6(ranges from 21×10-6 to 51×10-6).In addition,the value of Th/U is 3.5,with its evaluating parameter up to 26.26,indicating an advantage in ore-forming.The U content of Rencha Basin volcanic rocks ranges from 5.9×10-6 to 16.8×10-6 in the geological record.In the metamorphic sandshale of Pre-devonian,the concentrations of Cu and Ag are respectively up to 30.32×10-6 and 0.04×10-6.Thus the metalliferous original strata(source rocks) can contribute abundant ore metals to the formation of polymetallic ore deposits when the in-situ melting occurs.In conclusion,due to the excellent ore-forming conditions of the Rencha Basin,as the prospect area for volcanic polymetallic ore deposits,the east and south of the Basin and the basement should be preferentially considered.." @default.
- W2363439108 created "2016-06-24" @default.
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- W2363439108 date "2007-01-01" @default.
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- W2363439108 title "Analysis on Metallogenic Conditions of Rencha Volcanic Basin" @default.
- W2363439108 hasPublicationYear "2007" @default.
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