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一深断裂活动与岩浆分熔作用1.深断裂的发展、成矿带及矿床分布深断裂切割较深,常可达到上地幔;断距较大,有时水平位移可达数百公里;有些断裂出现明显的弧形.如西准葛尔优地槽的达拉布特-布尔克斯台深断裂带,是一个压扭性断层,属加里东-海西期基底深断裂.它和北部略呈y字型的玛南基底断裂同时出现,可能受后者控制,类似于张文佑断块学说的对应前弧出现横断裂的第三类弧形构造.该深断裂带控制着超基性岩的分布
A deep fault activity and magmatic sub-melting 1. The development of deep faults, deep metallogenic belt and the distribution of deep deep cleavage, often reach the upper mantle; large offsets, and sometimes horizontal displacement of up to hundreds of kilometers; some rupture Such as the Dalabott-Bourkesi-Tai deep fault zone in the Xizhiligou trench, is a compressive-shear fault that belongs to the deep Caledonian-Hercynian fault, which is slightly different from the northern part The Y-shaped Mannan basement faults occur simultaneously and may be controlled by the latter, similar to the third arc structure with transverse faults corresponding to the Zhang Wenyou fault block theory, which controls the evolution of ultrabasic rocks distributed