| 肖美瑄.遵化北部金矿区同位素地球化学研究[J].地质找矿论丛,1994,(4):86-92 |
| 遵化北部金矿区同位素地球化学研究 |
| ISOTOPE GEOCHEMISTRY REASEARCH ON Au-MINES IN THE NORTH OF ZUNHUA, HEBEI PROVINCE |
| 投稿时间：1994-04-18 修订日期：1994-06-16 |
| DOI：10.6053/j.issn.1001-1412.1994.4. 011 |
| 中文关键词: 金矿床 铅、硫同位素 遵化 |
| 英文关键词: |
| 基金项目: |
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| 中文摘要: |
| 对采自遵化北部茅山金矿、田家村金矿区的黄铁矿及围岩分别进行了铅、硫同位素分析,按三阶段演化模式得出t1=3.3Ga,相当于太古代变质岩成岩年龄,t2=1.4Ga相当于冀东地区第二次变质作用和钾质花岗岩侵入年龄,t3=0.16Ga,相当于燕山花岗岩的侵入年龄。结合部分钾-氩年龄数据可以大致推断本区金矿经历了三次成矿作用。且成矿物质来源于太古界地层。 |
| 英文摘要: |
| Samples collected from Maoshan and Tianjiacun Au-Mines are analysed for Pb and S isotopes of pyrite and those of the wallrocks.t1= 3.3Ga corresponding to rock-forming age of Archean metamorphic rocks,t2=1.4Ga to the second metamorphism in tne east Hebei Area and the intrusion of K-granite,t3= 0.16 Ga,to the intrusion of Yanshanian granites are obtained by three stage evolution model.Together with some K-Ar data it is infered that Au-ore in the area underwent three metallogenic events and ore materials could te derived from the Archean rocks. |
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