This paper presents the mineral and lithological features,tectonic setting and direction of the north provenance-depositional system of Jurassic,and the Jurassic strata in the north of eastern depression of North Yellow Sea Basin are as a target strata.The Jurassic strata are a set of terrigenous clastic rocks mainly with lithic quartz sandstone and lithic sandstone in type.Studying the sedimentary sequences of eastern depression of North Yellow Sea Basin,the authors identify three kinds of sedimentary environment which contain delta deposit,fan delta deposit and lake deposit.Based on the fragment composition and content of limestone,the north provenance-depositional system is defined as a weathered provenance added by volcanic materials,the provenance is the recycled orogeny and the depositional system is the fan delta system of a direction from north to south.Studying the microscopic and particle characteristics of samples,the authors identify four microfacies in this area including distal-bar,mouth bar,underwater channel and gravity underwater channel of fan delta front subfacies.
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