| 新疆阿尔泰铁热克提岩体热历史的磷灰石裂变径迹法研究 |
| |
| 关键词:thermal history uplift and denudation fission track apatite Altay Mountains in Xinjiang |
| 基金项目:国家重点基础研究发展规划项目(编号:2001CB409804)，国家自然科学基金项目(编号:10175076和40072068) |
|
| 摘要点击次数: 2996 |
| 全文下载次数: 2310 |
| 摘要: |
| Thermal History of the Tiereketi Batholith in Altay Mountains, Northern Xinjiang:Evidence from Apatite Fission Track Analysis |
| Fission track analysies of 4 apatite samples from Tiereketi granite batholith in the Altay Mountains of northern Xinjiang show three stages of thermal history. Before 120 Ma,the temperatures were 105～130℃ to 90～120 ℃;during 60～120 Ma,the temperatures ranged from 90～120 ℃to 20～65 ℃;since 60 Ma,the temperatures have varied in the range of 20～65 ℃ to 12～18 ℃.The 60～90 Ma period was a rapid cooling and uplifting stage,with the cooling rate being 2.5～3.23 ℃/Ma and uplifting rate 3.3～107.7 m/Ma. The rapid uplift during the 60～120 Ma and the apatite fission track ages of 80.4～91.9 Ma indicate that there once existed an intracontinental compressional orogeny in about 60～120 Ma. |
| YUAN Wan-ming,DONG Jin-quan,YANG Yun-hui,BAO Zeng-kuan.2004.Thermal History of the Tiereketi Batholith in Altay Mountains, Northern Xinjiang:Evidence from Apatite Fission Track Analysis[J].Acta Geoscientica Sinica,25(2):199-204. |
| 查看全文 查看/发表评论 下载PDF阅读器 |