【摘要】 通过对川西 1∶2 5万甘孜县幅内侵入岩的填图和详细研究 ,划分出印支期和燕山期两个完整的侵入岩序列 ,并依据各时期侵入岩的岩石特征、岩石成因和岩浆源区分析 ,结合岩体的构造特征及侵位机制研究 ,总结了本区松潘—甘孜造山带的各动力学演化阶段及其不同侵入岩岩石构造组合的特点。从侵入岩研究的角度 ,首次提出本区造山带经历了燕山期陆内造山作用过程 ,属多旋回复合造山更多还原

【Abstract】 Mapping and detailed research for intrusive rocks in 1∶250,000 Garzê quadrangle, west Sichuan indicate that the intrusive rocks may be divided into such two whole intrusive sequences as Indochinese and Yanshan. On the basis of petrographic features, petrogenesis and magmatic source in combination with petrotectonics and emplacement mechanism, this paper summarizes geodynamically evolutional history and petrotectonic association of intrusive rocks in the Songpan-Garzê orogenic zone and points out Yanshan multicycle intracontinental orogeny in this region.更多还原