| 河南板厂银多金属矿床钾长石氩-氩年龄及其地质意义 |
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| 关键词:40Ar/39Ar dating potash feldspar Ag-Cu-Pb-Zn-(Mo) deposit Banchang Henan |
| 基金项目:中国地质调查局《我国西部重要成矿区带矿产资源潜力评估》项目(编号:1212010535804); 《中国成矿体系综合研究》项目(编号:1212010634002); 《我国重要矿产和区域成矿规律研究》项目(编号:1212010633903); 自然科学重点基金《华北及邻区晚中生代大规模成矿与岩石圈伸展耦合关系》项目(编号:40434011) |
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| 40Ar-39Ar Age of Potash Feldspar from the Banchang Ag-Cu-Pb-Zn-(Mo) Deposit in Henan and Its Geological Significance |
| The Banchang large-size porphyry-hydrothermal type Ag-Cu-Pb-Zn-(Mo) deposit in Neixiang County, Henan Province, was discovered recently. Based on Ar-Ar geochronology of potash feldspar from this deposit, there are two chronological plateaus: ① 900～1150℃ chronological plateau includes 43.4% of 39Ar and has plateau age of (148.1 ±1.6) Ma and revised isochronal age of (145.7 ± 2.3) Ma; ② 1200～1450℃ chronological plateau includes 48.8% of 39Ar and has plateau age of (161.0 ± 1.6) Ma and revised isochronal age o... |
| LI Hou-min,WANG Deng-hong,GUO Bao-jian,CHEN Yi-chuan,BAI Feng-jun,QIU Jian-jun.2008.40Ar-39Ar Age of Potash Feldspar from the Banchang Ag-Cu-Pb-Zn-(Mo) Deposit in Henan and Its Geological Significance[J].Acta Geoscientica Sinica,29(2):154-160. |
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