Significance of Paleoproterozoic thermodynamic activity-traces on the;tectonic boundary in North China protoplatform.

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	Significance of Paleoproterozoic thermodynamic activity-traces on the;tectonic boundary in North China protoplatform.
	Bai, J
刊名	ACTA PETROLOGICA SINICA
	2000
卷号	16 期号:1 页码:39-48
关键词	Paleoproterozoic traces of thermodynamic activity temperature lowering-pressure elevating tendency tectonic boundary facing
ISSN号	1000-0569
英文摘要	Thermodynamic activity-traces acted as the regional metamorphic facies and its belts. In addition to road pressure, the lateral compresso-shearing stress plays an important role in the thermodynamic metamorphism. There is just the striking evidence that the penetrative schistosity exists everywhere in mountain making belts, which is formed by the parallel directive arrangement of syntectonic metamorphic mineral assemblage. During the opposite blocks moved inwards, a linear mobile belt, shortened to make mountain, was operated under the invertial reference system, and the lateral pressure decreased gradually effected by the bottom fractional force. Finally, when the opposite blocks collided with each other, the invertial reference system was thoroughly destroyed to enlarge the lateral pressure, and give rise to the low temperature-high pressure metapmorphic facies to exhibit the temperature lowering-pressure elevating tendency, which is one of the valuable indicators for the search of tectonic boundary.;Since the Paleoproterozoic the primitive continent split, then the crustal evolution was restricted by the regime like that of modern prate tectonics to exhibit a configuration of co-existence of varied mobile belts and rigid blocks. The north China proto-platform is considered to have been separated from the neighbourhood. But the nearly north-south primary structural trend of the Paleoproterozoic formations within the northern margin of the modern north China platform indicates that the north China protoplatform had been connected with the Siberia craton during and before Paleoproterozoic times.
学科主题	前寒武纪地质
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000088761700005
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37384]
专题	中国地质调查局天津地质调查中心
作者单位	CAGS, Tianjin Inst Geol & Mineral Resources, Tianjin 300170, Peoples R China.
推荐引用方式 GB/T 7714	Bai, J. Significance of Paleoproterozoic thermodynamic activity-traces on the;tectonic boundary in North China protoplatform.[J]. ACTA PETROLOGICA SINICA,2000,16(1):39-48.
APA	Bai, J.(2000).Significance of Paleoproterozoic thermodynamic activity-traces on the;tectonic boundary in North China protoplatform..ACTA PETROLOGICA SINICA,16(1),39-48.
MLA	Bai, J."Significance of Paleoproterozoic thermodynamic activity-traces on the;tectonic boundary in North China protoplatform.".ACTA PETROLOGICA SINICA 16.1(2000):39-48.