摘要
内蒙古苏尼特左旗地区A型花岗岩位于索伦山-贺根山构造带内。高精度锆石SHRIMPU-Pb测年结果显示该花岗岩的侵位年龄为222Ma±4Ma。其成因可能与中亚造山带碰撞造山后的岩石圈伸展作用有关。
A-type granites occur along the Solon-Hegen tectonic zone in the Sonid Zuoqi area, central Inner Mongolia. High-precision SHRIMP U-Pb zircon dating of the A-type granites indicates that they were emplaced at 222±4 Ma. Their genesis might be related to post-coUisional orogenic lithospheric extension of the Central Asian orogenic belt during the Triassic.
出处
《地质通报》
CAS
CSCD
北大核心
2007年第2期183-189,共7页
Geological Bulletin of China
基金
国家自然科学基金重点项目(批准号:40234045)
国家自然科学基金面上项目(批准号:40473030)资助。