Bioturbation of Donghe Sandstone Member in Tarim Basin

Abstract

Abstract: The effect of bioturbation to deposition process is complex. It is generally recognized that bioturbation exists in surface granular mud sediments, such as the deep sea beds, estuary bays, tidal flats and other conditions. Donghe sandstone member in Tarim basin was deposited in high-energy shore clastic sedimentary environment. The numerous trace fossils and a large number of bioturbation structures may state the fact that there exists bioturbation in high-energy environment. The intensity of bioturbation has further become the evidence of identifying the sedimentary microfacies and the crypto-bioturbation can always reflect the original sedimentary structure.

Key words: Tarim basin, Donghe sandstone member, bioturbation, coastal environment, sedimentary microfacies

CLC Number:

TE112.221

YANG Wei-fang, WANG Bo, ZHANG Hui-liang. Bioturbation of Donghe Sandstone Member in Tarim Basin[J]. Xinjiang Petroleum Geology, 2010, 31(5): 493-495.

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