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Songnen Massif and Its Research Significance
详细信息   
摘要

Matching of massifs is one of the basic characteristics of Northeast China geotectonic framework. Upon such a background, the Songnen Massif, which has been relatively poorly researched, is studied in the present work in terms of its regional geology. The history of Songnen Massif matching with adjacent massifs has been explored through stratigraphy, palaeobiogeographic zoning, tectono-magmatic assemblage and isotopic chronology. It is found that the Songnen Massif is connected with Higgan fold belt through the Middle-Paleozoic Nenjiang orogenic belt on the west, with the Early-Paleozoic Xar-Moren fold belt in the northern margin of North China Craton through the Late-Paleozoic Central-Jilin orogenic belt on the south, with Jiamusi Massif through the Mesozoic Zhangguangcai Range orogenic belt on the east, and with the Mesozoic Mongolian-Okhotsk orogenic belt on the north.

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