塔河-十八站地区兴华渡口岩群原岩恢复及构造背景浅析

Tahe-Shi Bazhan area Xinghuadukou ferry protolith restoration and tectonic background analyses

出露于塔河-十八站地区的兴华渡口岩群时一套经历低角闪岩相变质的中深变质岩系,自下而上镁铁质火山岩渐少,中酸—酸性火山岩、泥质岩、细碎屑岩则渐多,反映了一个类似于大陆边缘弧后裂谷型火山—沉积盆地的构造环境。

The exposed rocks in Tahe-Shi Bazhan of xinghua ferry when a set of living through a period of low amphibolite phase change properties of deep metamorphic rock series,mafic volcanic rocks from bottom to top,less acid-acid volcanic rocks,argillaceous rocks,in the fine clastic rock is more,reflects a similar to the continental margin type back-arc rift volcanic sedimentary basin tectonic environment.