Discovery of the liaogaoshan tectonic melange belt in the eastern qilian orogenic belt and its geological significance
2.
There exists a series of meso - neoproterozoic tectonic melanges and ophiolitic melanges in jianping - fuxin - tieling area of northern liaoning province
3.
The basic to ultra - basic rocks are distributed along suture zones , whereas the intermediate to acidic intrusives occur mainly to the south and north of the arsuo tectonic melange zone and the angren ophiolitic melange zone
4.
During this evolution , seven second - order tectonic units were formed ; from north to south are the mingqianri cretaceous residual sea basin , the arsuo tectonic melange zone , the taricuo - wenbu yenshan magmatic arc belt , the cuoqin - bangduo late paleozoic composite back - arc basin , the jiangrang - geerdi faulted uplift , the gangdise - chazi himalayan magmatic arc belt , and the xigaze - anba fore - arc basin . these units comprise important parts of a poly - arc - basin system and exhibit evolutional features of mesozoic to cenozoic arc - basin systems . mosaic pattern of these tectonic units delineates the lithosphere coupling processes of the gangdise tectonic belt under mechanisms such as back - arc basin attenuation and arc - continent collision
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