牧牛山二长花岗岩体是胶东郭城地区出露面积最为广泛的岩体,为区内重要的赋矿围岩之一.采用锆石LA-ICPMS U-Pb定年方法,获得岩体结晶成岩年龄为(2 105 ±26)Ma,并经历了约1.85 Ga时期的变质改造事件.岩体侵位与区内金成矿作用时间差距甚远,因此直接提供金或成矿流体的可能性不大.
参考文献
| [1] | 沈远超,杨金中,刘铁兵,曾庆栋,李光明.胶东新型金矿--层间滑动角砾岩型金矿床[J].地质与勘探,2002(02):11-14. |
| [2] | 山东省第一地质矿产勘查院 .山东省海阳市土堆-沙旺矿区金矿详查报告[R].烟台:山东烟台鑫泰黄金矿业有限责任公司,2001. |
| [3] | Liu, YS;Hu, ZC;Gao, S;Gunther, D;Xu, J;Gao, CG;Chen, HH .In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard[J].Chemical geology,2008(1/2):34-43. |
| [4] | Liu Y S;Gao S;Hu Z C et al.Continental and oceanic crust recycling-induced melt-peridotite interactions in the Trans-North China Orogen:U Pb dating,Hf isotopes and trace elements in zircons of mantle xenoliths[J].Journal of Petrology,2010,51:537-571. |
| [5] | 吴元保,郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报,2004(16):1589-1604. |
| [6] | Hoskin PWO.;Black LP. .Metamorphic zircon formation by solid-state recrystallization of protolith igneous zircon[J].Journal of Metamorphic Geology,2000(4):423-439. |
| [7] | Hidaka H.;Shimizu H.;Adachi M. .U-Pb geochronology and REE geochernistry of zircons from Palaeoproterozoic paragneiss clasts in the Mesozoic Kamiaso conglomerate, central Japan: evidence for an Archean provenance[J].Chemical geology,2002(3-4):279-293. |
| [8] | 高玉娟,张亚明,闫平科.山东海阳土堆金矿床成矿控制条件及成矿类型研究[J].辽宁工学院学报,2006(04):239-242. |
| [9] | Li Jian-Wei;Paulo Vasconcelos;Zhou Mei-Fu .Geochronology of the Pengjiakuang and Rushan Gold Deposits, Eastern Jiaodong Gold Province, Northeastern China: Implications for Regional Mineralization and Geodynamic Setting[J].Economic geology and the bulletin of the Society of Economic Geologists,2006(5):1023-1038. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%