中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China

文献类型:期刊论文

作者Yu XinQi3; Liu JunLai3; Zhang DeHui3; Zheng Yong2; Li ChunLin3; Chen ShuaiQi3; Li Tan1
刊名CHINESE SCIENCE BULLETIN
出版日期2013
卷号58期号:35页码:4459-4471
关键词APATITE-FISSION-TRACK U-PB EXHUMATION HISTORY QINLING OROGEN ANNEALING KINETICS TECTONIC EVOLUTION DATING CALIBRATION TAIHUA COMPLEX GEOCHRONOLOGY ZIRCON apatite fission track Ar-39/Ar-40 dating uplift and exhumation Wenyu granitic pluton metamorphic complex
ISSN号1001-6538
其他题名Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China
英文摘要Xiaoqinling District is an important gold-producing area in China. It ranks second to Jiaodong with regard to gold deposits. The uprising period of the Wenyu granitic pluton and the wall-rocks of the deposit, as well as the mineralizing depth and reserved place of gold ore bodies, are significant to ore exploration. Fission-track (FT) analysis of zircons and apatites of granitic rocks from the Wenyu granitic pluton shows that apatite FT (AFT) data modeling indicates a rapid cooling rate of 20A degrees C/Ma from 138 to 120 Ma after emplacement at 138 Ma. Thermal evolution and inversion curves suggest a secondary phase of fast cooling and uprising from 45 to 35 Ma, and 35 Ma, respectively, with a cooling rate of 6.7A degrees C/Ma and a denudation quantity of similar to 4.3 km. The last cooling phase took place from < 4 Ma, with an average cooling rate of similar to 11.3A degrees C/Ma and a denudation amount of 1.3 km. Total exhumation quantity of 5.6 km and uprising elevation of 7.3 km are similar to the estimated results of fluid inclusions from the Dongtongyu and Wenyu gold deposits. The Ar-39/Ar-40 dating of sericite from the fault planes of the Xunmadao-Xiaohe and Taiyao faults demonstrate two uprising activities of the ore-host metamorphic complex. The Huashan and Wenyu granitic plutons intensively occurred during 77 and 45 Ma, respectively. These data sets are valuable for understanding the uplifting process and for preserving gold ore bodies in the Xiaoqinling area, as well as for further studies on tectonic evolutions of the Taihua Complex and the Qinling-Dabie Orogen.
资助项目[National Natural Science Foundation of China]
语种英语
CSCD记录号CSCD:5019433
源URL[http://ir.imr.ac.cn/handle/321006/154670]  
专题金属研究所_中国科学院金属研究所
作者单位1.中国科学院金属研究所
2.中国科学院
3.China University Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Yu XinQi,Liu JunLai,Zhang DeHui,et al. Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China[J]. CHINESE SCIENCE BULLETIN,2013,58(35):4459-4471.
APA Yu XinQi.,Liu JunLai.,Zhang DeHui.,Zheng Yong.,Li ChunLin.,...&Li Tan.(2013).Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China.CHINESE SCIENCE BULLETIN,58(35),4459-4471.
MLA Yu XinQi,et al."Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China".CHINESE SCIENCE BULLETIN 58.35(2013):4459-4471.

入库方式: OAI收割

来源:金属研究所

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