Basement of Junggar Basin and Its Seismic Velocity Characteristics

Abstract

Abstract: This paper makes statistics and analysis of seismic velocity in seismic transformed wave in Junggar basin and Tarim basin, and comparison of these with compressional wave velocity features from Yangzi platform (Yun-nan province), Erdos platform (Ningxia-Inner Mongolia) and Huabei platform (North China). It is considered that in Junggar basin sialic layer is absent, and epimetamorphic Yolded basement”of Lower Paleozoic directly overlapped on sialma, without hypometamorphic rock formation (i.e, “Crystalline basement”). However, Tarim basin, Yangzi platform, Erdos platform and Huabei platform are all characterized by similar crust-mantle velocity.

Key words: Junggar basin, basement, characteristics, transformed wave, compressional wave velocity

CLC Number:

TE111.1

CHEN Jun-xiang, CHEN Jing-liang. Basement of Junggar Basin and Its Seismic Velocity Characteristics[J]. Xinjiang Petroleum Geology, 2002, 23(6): 474-477.

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Basement of Junggar Basin and Its Seismic Velocity Characteristics

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