| [an error occurred while processing this directive] |
Global Geology 2023, 26(2) 98-113 DOI:
ISSN: 1673-9736 CN: 22-1371/P |
|
|
|
|
本期目录 |
下期目录 |
过刊浏览 |
高级检索
[打印本页]
[关闭] |
|
| 论文 |
|
|
|
|
|
|
|
|
|
|
|
摘要：
|
|
|
关键词：
|
|
|
Gold mineralization in Jiaodong Peninsula and destruction of North China Craton: Insights from Mesozoic granite |
|
|
WANG Bin1,2,3, ZHOU Jianbo1* , DING Zhengjiang2,3, ZHAO Tiqun2,3, SONG Mingchun2,3, BAO Zhongyi2,3, LYU Junyang2,3, XU Shaohui2,3, YAN Chunming2,3, LIU Xiangdong2,3 and LIU Jialiang2,3 |
|
|
1. College of Earth Sciences, Jilin University, Changchun 130061, China;
2. Shandong Provincial Engineering Laboratory of Application and Development of Big Data for Deep Gold Exploration, Weihai 264209, Shandong, China; 3. Shandong Provincial No.6 Exploration Institute of Geology and Mineral Resources, Weihai 264209, Shandong, China |
|
|
Abstract:
Large-scale tectonic magmatism and extensive gold mineralization have occurred in the eastern North China Craton (NCC) (Jiaodong and Liaodong peninsulas) since Mesozoic, which indicated that the region experienced decratonization process. The genesis type of granites evolved from S-type to I-type and A-type during Late Jurassic to Early Cretaceous, and thus reflects the evolution of geodynamics in the Late Mesozoic, indicating the varied subduction process of the Paleo-Pacific Plate (PPP) and the craton destruction. The evolution of geochemical features shows that the mantle beneath the Jiaodong Peninsula evolved from EM-II in Jurassic to EM-I in Early Cretaceous, demonstrating that the mantle switched from enriched to depleted. The gold of decratonic gold deposits in Jiaodong Peninsula mainly comes from the lithospheric mantle domains metasomatized by fluids derived from the metamorphism and dehydration of the subducted slab in the mantle transition zone. The rapid decomposition of minerals leads to the concentrated release of ore-forming fluids, and this process leads to the explosive gold mineralization during the craton destruction. Extensive magmatic uplift and extensional structures, triggered by the craton destruction in Early Cretaceous formed the extensional tectonic system, providing space for the decratonic gold deposits in Jiaodong Peninsula. |
|
|
Keywords:
Jiaodong Peninsula
Mesozoic granite
craton destruction
decratonic gold deposit
extensional structure
|
|
|
收稿日期 修回日期 网络版发布日期 |
|
|
DOI: |
|
|
基金项目:
|
|
|
通讯作者: |
|
|
作者简介: |
|
作者Email: |
|
|
| 参考文献： |
| |
| 本刊中的类似文章 |
| 1．. [J]. Global Geology, 2023,26(3): 189-198 |
| 2．. [J]. Global Geology, 2023,26(3): 146-156 |
| 3．. [J]. Global Geology, 2023,26(3): 133-145 |
| 4．. [J]. Global Geology, 2023,26(3): 157-166 |
| 5．. [J]. Global Geology, 2023,26(3): 167-176 |
| 6．. [J]. Global Geology, 2023,26(3): 177-188 |
| 7．. [J]. Global Geology, 2023,26(2): 114-121 |
| 8．. [J]. Global Geology, 2023,26(2): 63-73 |
| 9．. [J]. Global Geology, 2023,26(2): 74-97 |
| 10．. [J]. Global Geology, 2023,26(2): 122-132 |
| 11．. [J]. Global Geology, 2023,26(1): 40-46 |
| 12．. [J]. Global Geology, 2023,26(1): 1-8 |
| 13．. [J]. Global Geology, 2023,26(1): 9-20 |
| 14．. [J]. Global Geology, 2023,26(1): 21-30 |
| 15．. [J]. Global Geology, 2023,26(1): 31-39 |
|
| Copyright by Global Geology |
