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Polygenetic Mineralization of the Early Proterozoic Tongkuangyu Metaporphyry Copper Deposit in the Zhongtiao Mountains, Shanxi Province
Author(s) -
Wenming CHEN,
Chengxin ZHANG,
Jiren LU,
Zefa DANG,
Shuping LI,
Wenbin CUI,
Yuan NING,
Yongjun CAO
Publication year - 1998
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1998.tb00391.x
Subject(s) - proterozoic , geology , geochemistry , protolith , mineralization (soil science) , metamorphic rock , copper , precambrian , tourmaline , volcanic rock , stage (stratigraphy) , volcano , paleontology , chemistry , tectonics , organic chemistry , soil water , soil science
The Tongkuangyu metaporphyry copper deposit formed in the Early Proterozoic is tectonically located in the northern part of the Zhongtiao Λ‐type palaeorift depression, on the southern margin of the North China platform. The genesis of the deposit has long been a hot subject of research of geologists working on mineral deposits. By means of the protolith reconstruction and fluid inclusion and isotope studies of host rocks of the deposits, the authors hold that this deposit is the product of combined exogenic, endogenic and metamorphic processes. Its formation mainly involved the following four stages: (1) the stage of formation of Mg‐ and Fe‐rich tuffaceous variegated cupriferous sand‐shale and K‐rich biomodal volcanic rocks; (2) the early stage of formation of the metaporphyry copper deposit; (3) the stage of formation of the metaporphyry copper deposit; and (4) the stage of reworking of the metaporphyry copper deposit.