Abstract
Using core,logging,seismic data and rock flakes,and based on the results of laboratory analysis and other information,the microfacies of the Member 2 of the Nantun Formation from the Tarbell depression were studied.Results show that in the Tarbell depression,there developed various depositional systems,such as alluvial fan,fan delta,nearshore submarine fan,lake floor fan and lacustrine systems dominated by the fan-delta and lacustrine systems.Through seismic facies analysis,seismic attribute analysis,study of sandstone percentage,diplog,and heavy minerals,the spatial distribution of the above mentioned depositional systems were presented in this paper.
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