Premium
Average Lead Isotope Growth Curve and Mxing Line Isochrons for the Lala IOCG Deposit, Kangdian Region, SW China
Author(s) -
LI Zeqin,
HUANG Congjun,
WANG Jiangzhen
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 - 10.1111/1755-6724.12372_11
Subject(s) - geohazard , china , isochron dating , geology , iron oxide copper gold ore deposits , geochemistry , geography , isochron , archaeology , seismology , landslide , fluid inclusions , hydrothermal circulation
IOCG deposit has a very high content of radiogenic lead, and it is much higher in the sulfide minerals (Fig. 1) than the host rocks. Generalized global growth curves, such as that of Stacy and Kramers (1975) and multistage evolution models, are not applicable to interpret the feature. This study is to build the upper mantle and lower crust growth curve of the Proterozoic Kangdian region based on the basic Pb isotopic geochemistry and previous academic achievements, and the Pb isotopic isochron age of the Lala IOCG deposit.