青海省野骆驼泉地区志留纪侵入岩地球化学特征及地质意义

摘要

研究区大地构造位置属秦祁昆晚加里东造山系,赛什腾山一阿尔茨托山造山亚带,柴达木准地台北缘残山断褶带西赛什腾山复向斜南翼.区内岩浆活动强烈,侵入岩发育,通过对研究区侵入岩地球化学特征深入分析,提出志留纪侵入岩形成于板块同碰撞期的挤压造山构造环境,对以后的工作具有十分重要参考价值.%Our research area,a tectonic position,is located at Qinli-Qilian-Kunlun that belongs to the late Caledonian orogeny,Chaidamu paraplatform of relict Mountain in fault zone Saixiteng mountain to the south.The Permian intrusive rock zone is NW trending with regional control and fault reconstruction effect.The product line of late Variscan shows kinds of magmatic activities.In this paper,the geochemical characteristics of Permian intrusive rocks are analyzed in detail.The tectonic significance is studied,which will bring about a important reference value for future work.