摘要
本文通过对青藏高原冈底斯花岗岩带中段花岗闪长岩中不同矿物裂变径迹年龄研究表明，青藏高原南部的隆升是分阶段的，从岩体就位到约３０Ｍａ为高原缓慢隆升阶段，３０Ｍａ－７Ｍａ期间高原隆升速度加快，７Ｍａ以来高原快速隆升；结合已有的有关青藏高原不同地区隆升速率、时限研究成果认为，青藏高原的隆升具有整体性、阶段性、加速性和区域的不均衡性。
From the results of fission track dating of different minerals from the granodiorite of the middle Gangdise granitoids belt in Qinghai Xizang Plateau,the authors suggest that the uplifting of southern Qinghai Xizang Plateau is episodic,there having occurred a slow uplifting from the emplacement of the intrusive to about 30 Ma,which was followed by an acceleration in velocity from 30 to 7 Ma and a rapid uplifting since 7 Ma.
出处
《地质力学学报》
CSCD
1998年第1期13-18,共6页
Journal of Geomechanics
基金
地矿部重点研究课题
关键词
矿物裂变径迹
年龄
青藏高原
隆升速率
mineral fission track date
Qinghai Xizang Plateau,uplifting
