Base-level changes and nonmarine sequence stratigraphy:an example from the Tarim Basin,Xinjiang

Base-level changes are successfully employed in the genetic explanation and division of stratigarphic sequences,while the theories of sequence stratigarphy are difficult to be ap-plied to nonmarine basins based on sea-level changes.This paper discusses the formation and development of the stratigraphic sequences during the base-level evolution.The stratigraphic sequences have been classified and the sequence stratigraphic frameworks erected with the aid of the construction of the base-level curves and the analysis of the ge-netic stratigraphy.The theories of sequence stratigraphy based on the base-level changes are successfully used for the explanation of the Triassic——Jurassic nonmarine sequences within the outcrop section in the southeastern part of the Tarim Basin,Xinjiang which can be correlated with the stratigraphic sequences in the northern part of the basin.