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The Geochemical Characteristics and Metallogenic Mechanism of the Daliangzi Pb‐Zn Deposit in Sichuan Province
Author(s) -
WANG Hai,
CHENG Xiyin,
SUN Zijian,
JIANG Binbin
Publication year - 2017
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 - 10.1111/1755-6724.13298
Subject(s) - geology , geochemistry , mechanism (biology) , mining engineering , epistemology , philosophy
Daliangzi large-sized Pb-Zn deposit, located in the Western Margin of Yangtze Plate, is typical Pb-Zn deposit in the sichuan-yunnan-guizhou polymetallic metallogenic belt. Ore bodies are hosted in Sinian Dengying Formation dolostone as lenticular, vein and cystic. The ore minerals are mainly sphalerite, galena with minority of pyrite and copper, and the gangue minerals consist of dolomite, calcite and quartz. Ore minerals are always filled in the cracks or as the cement of dolostone breccia, which are characterized by epigenetic mineralization. Some researches have been done on the geological and geochemical features, and a wealth of achievements have been obtained, but there is few studies on the source of metallogenic materials and the features of metallogenic fluid. So in this paper, based on the previous researches, the geochemical characteristics of REE and some isotopes, including C, O, Sr, S and Pb isotope, of hydrothermal calcite, ore minerals, and some strata in the mining area were studied. As a result, some realizations on the source of metallogenic materials and the features of metallogenic fluid are concluded.