P588.121 P542.2
国家自然科学基金(编号49272138)，北京中关村地区联合分析测试中心资助
本文重点研究内蒙古阿拉善北部地区塔里木板块与华北板块碰撞期及后造山期的岩浆作用。发生于２５１．３Ｍａ左右的热事件是碰撞期Ｃｓ型岩浆作用，仅分布于缝合线之北，其产物不是典型的Ｓ型花岗岩。岩体中片麻理构造及围岩中的透入性劈理是同碰撞期造山作用的构造形迹。发生于２２８Ｍａ左右的热事件是后造山期Ａ型岩作用，源岩是地下壳物质，按源岩差异研究的Ａ型花岗岩分为Ａｓ型和Ａｉ型。前者受陆壳中沉积物混染较强，而后者受
The studied region in this paper involves northern Alaxa region,Inner Mongolia,China. Geo-tectonically it belongs to the Tarim and North China plates. This paper chiefly has studied the magmatism of collisional and post-orogenic period between the Tarim a
王廷印 吴家弘.1998.内蒙古阿拉善北部地区碰撞期和后造山期岩浆作用[J].地质学报,72(2).
Wang Tingyin, Gao Junping, Wang Jinrong.1998. Magmatism of Collisional and Post-Orogenic Period in Northern Alaxa Region in Inner Mongolia[J]. Acta Geologica Sinica,72(2).
