Petrogenesis and Chronology of Intermediate-Acidic Intrusive Rocks in Tongling Area, Anhui Province, China

Zi Long Yue; Yan Li Gao; Zhao Ge Zeng

doi:10.4028/www.scientific.net/AMR.1010-1012.1372

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1010-1012Petrogenesis and Chronology of Intermediate-Acidic...

Petrogenesis and Chronology of Intermediate-Acidic Intrusive Rocks in Tongling Area, Anhui Province, China

Abstract:

The intermediate-acidic intrusive rocks in Tongling area of Anhui province can be divided into two magmatic series, namely the shoshonitic series and the high-potassium(K) calc-alkaline series. The shoshonitic series is characterized by an association of pyroxene monzodiorites + monzodiorites + quartz monzonites, and high Rittmann indices. This series has common association with gold deposits. The high-potassium(K) calc-alkaline series is characterized by an association of diorite + quartz monzodiorites + granodiorites. It has lower Rittmann indices and REEs than the shoshonitic series and is associated with copper deposits. Results obtained from the studies show that the former is derived from the differentiation of the alkaline basic magma in mantle and the later is mixture between the differentiated mantle magma and crustal magma. The chronology of intermediate-acidic intrusive rocks is about 140Ma.

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Periodical:

Advanced Materials Research (Volumes 1010-1012)

Pages:

1372-1375

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1010-1012.1372

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Online since:

August 2014

Authors:

Zi Long Yue*, Yan Li Gao, Zhao Ge Zeng

Keywords:

High-Potassium (K) Calc-Alkaline Series, Intrusive Rock, Shoshonitic Series

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