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| 山东省焦家矿区深部超大型金矿床及其对“焦家式”金矿的启示 | |
| 引用本文： | 宋明春,崔书学,周明岭,姜洪利,袁文花,魏绪峰,吕古贤.山东省焦家矿区深部超大型金矿床及其对“焦家式”金矿的启示[J].地质学报,2010,84(9):1349-1358. |
| 作者姓名： | 宋明春 崔书学 周明岭 姜洪利 袁文花 魏绪峰 吕古贤 |
| 作者单位： | 1. 山东省地质矿产勘查开发局,济南,250013 2. 山东省第六地质矿产勘查院,山东招远,265400 3. 中国地质科学院地质力学研究所,北京,100083 |
| 基金项目： | 国家自然科学基金，山东省地质矿产勘查开发局地矿科技项目资助的成果 |
| 摘 要： | 通过三年的地质勘查研究,发现了山东焦家矿区深部105吨特大型金矿床,圈定了89个矿体,归并为4个矿体群,其中Ⅰ-1号主矿体沿焦家断裂主裂面分布。焦家矿区共探获金矿资源储量230多吨,成为世界级超大规模金矿床。通过焦家深部金矿床和浅部金矿床对比研究,揭示了新的金矿成矿规律:浅部金矿床和深部金矿床之间为无矿间隔或弱矿化带;金矿床矿体厚大部位在剖面上产于焦家断裂由陡变缓转折点下部;焦家带金矿床构成了沿"一条构造带、二段矿化富集带、三层矿化蚀变带"产出的矿床模式。通过同位素年龄测定,焦家断裂断层泥的K-Ar年龄为131.05～123.53Ma和48.57～41.18Ma,早期指示断裂构造的主要形成期与金矿的主成矿期同步;晚期金矿的同位素年龄略晚于郭家岭花岗岩年龄,略早于崂山花岗岩年龄,位于伟德山花岗岩年龄值高峰段内,说明伟德山花岗岩岩浆活动是导致"焦家式"金矿成矿的直接因素。 |
| 关 键 词： | 深部金矿床 "焦家式"金矿 成矿规律 断裂活动时代 伟德山花岗岩 |
| 收稿时间： | 2009/4/17 0:00:00 |
| 修稿时间： | 2009/12/13 0:00:00 |
The Deep Oversize Gold Deposit in the Jiaojia Field ,Shandong Province and Its Enlightenment for the Jiaojia gold type |
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| songmingchun,Cui Shuxue,Zhou Mingling,Jiang Hongli,Yuan Wenhu,Wei Xufeng and Lv Guxian.The Deep Oversize Gold Deposit in the Jiaojia Field ,Shandong Province and Its Enlightenment for the Jiaojia gold type[J].Acta Geologica Sinica,2010,84(9):1349-1358. | |
| Authors: | songmingchun Cui Shuxue Zhou Mingling Jiang Hongli Yuan Wenhu Wei Xufeng and Lv Guxian |
| Institution: | Shandong Provincial Bureau of Geology and Mineral Resources,No.6 Exploration Institute of Geology and Mineral Resources,No.6 Exploration Institute of Geology and Mineral Resources,No.6 Exploration Institute of Geology and Mineral Resources,No.6 Exploration Institute of Geology and Mineral Resources,No.6 Exploration Institute of Geology and Mineral Resources,Chinese Academy of Geological Sciences |
| Abstract: | Three years of geological exploration found a 105-ton deep oversize gold deposit and defined 89 orebodies in the Jiaojia field,Shandong province. They are classified into four orebody groups,in which the I-1main orebody was found to occur along the major fault surface of the Jiaojia fault. The total reserves of gold in the Jiaojia deposit amounts to 230 ton or so,and made it one of world-class largest gold deposits. Comparison study of gold deposits located at both depth and shallow reveals the law of gold ... |
| Keywords: | deep gold deposit Jiaojia-type gold metallogenic law age of the fault Weideshan granite |
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