Premium
Geochronology and Geochemistry of the Porphyries in Xuejiping Deposit in Northwestern Yunnan: Petrogenesis and Implication for Mineralization
Author(s) -
LI Xuefeng,
DONG Guochen,
HE Wenyan,
WANG Peng,
JING Guoqing,
DAI Youxu
Publication year - 2014
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 - 10.1111/1755-6724.12374_31
Subject(s) - beijing , china , chinese academy of sciences , petrogenesis , earth science , geology , library science , geochemistry , geography , archaeology , mantle (geology) , computer science
Xuejiping porphyry copper deposit is located in the eastern part of the Shangri-La Country, northwestern Yunnan Province, China. It belongs to PaleotethysHimalayan metallogenic district, which is one of the three large porphyry copper belt in the world. Tectonically. it lies in western Zhongdian island arc, which is the southern part of the Triassic Yidun island arc. Previous studies about age of Xuejiping porphyry complex had a divergence. The hornblende Ar-Ar plateau age of quartz dioritic porphyry was defined as 249.3±3.0 Ma, but zircon U-Pb dating ages were defined as 215.3 Ma. Besides, previous studies didn′t discuss the characteristic of each lithology in Xuejiping porphyry complex and their implication for mineralization. In this study, we present detailed geochronologic and geochemistry of Xuejiping intrusion and its related porphyry type mineralization to address magma genesis and metallogeny.