首页|期刊导航|中国地球化学学报（英文版）|Isotope Geochemistry of the Dongchuan Copper Deposit, Yunnan, SW China:Stratigraphic Chronology and Application of Lead Isotopes in Geochemical Exploration
中国地球化学学报（英文版）2002，Vol.21Issue(1)：65-72,8.
Isotope Geochemistry of the Dongchuan Copper Deposit, Yunnan, SW China:Stratigraphic Chronology and Application of Lead Isotopes in Geochemical Exploration
Isotope Geochemistry of the Dongchuan Copper Deposit, Yunnan, SW China:Stratigraphic Chronology and Application of Lead Isotopes in Geochemical Exploration
摘要
Abstract
In this paper the Pb-Pb isochron method was used to determine the isotopic ages of the Luoxue Formation dolomites (1716 ± 56 Ma), the Heishan Formation carbonaceous slates(1607 ± 128 Ma) of the middle sub-group of the Kunyang Group and the Dayingpan Formation carbonaceous slates ( 1258 ± 70Ma) of the upper sub-group of the Kunyang Group. The age of the middle sub-group of the Kunyang Group is about 1800 - 1600 Ma, belonging to the Late Paleo-Proterozoic, and that of the Dayingpan Formation in the upper sub-group of the Kunyang Group is about 1200 - 1300 Ma, belonging to the Middle Proterozoic. In addition, the Pb isotope chemical exploration techniques were used to study systematically the Pb isotopic compositions of rocks and ores across the No. 14 vein in the middle segment of the No. 1 pit of the Tangdan copper deposit and the result showed that the Pb isotope V1 values are negatively correlated with the copper contents. It is the first trial to use the systematic section method to conduct Pb isotope chemical exploration.关键词
Dongchuan copper deposit/Pb-Pb isochron/stratigraphic chronology/Pb isotope chemical explorationKey words
Dongchuan copper deposit/Pb-Pb isochron/stratigraphic chronology/Pb isotope chemical exploration引用本文复制引用
常向阳,朱炳泉..Isotope Geochemistry of the Dongchuan Copper Deposit, Yunnan, SW China:Stratigraphic Chronology and Application of Lead Isotopes in Geochemical Exploration[J].中国地球化学学报（英文版）,2002,21(1):65-72,8.基金项目
This research project was financially supported jointly by the National Natural Science Foundation of China (Grant Nos.49702022, 40073001) and the State 973 Program (No. G1999043215). （Grant Nos.49702022, 40073001）
