Attempt to Explain the Enigma of“Chinese Geological Bermuda”

Abstract

Abstract: The triangular Songpan-Ganzi folded area in eastern Qinghai-Tibetan plateau is almost covered with very thick Triassic turbidite deposit and lots of geologic information may be enveloped, so it becomes a mysterious land in China. Its particularity of geologic structure, multi-explanation of most geologic problems and uncertainty of domestic experts’recognitions allowed this area to be even called“Chinese Geological Bermuda”(after Xu Zhi-qin, 1991). This paper discussed this problem in detail in aspects of old plate tectonic evolution, “Emei mantle plume”, “Emei taphrogeny”and sedimentary basin evolution, etc., trying to uncover the mysterious geological veil. In addition, this paper puts forward several fundamental issues to be discussed that are most interested in nowadays in domestic geosciences field.

Key words: Chinese Geological Bermuda, Songpan-Ganzi folded system, tubidite deposit basin, old plate tectonic evolution, Emei mantle plume, Emei tafrogeny

CLC Number:

TE111

LUO Zhi-li, YAO Jun-hui, SUN Wei, ZHAO Xi-kui, LIU Shu-gen. Attempt to Explain the Enigma of“Chinese Geological Bermuda”[J]. Xinjiang Petroleum Geology, 2006, 27(1): 1-4.

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