塔里木盆地北部寒武——奥陶纪层序地层格架

本文根据露头剖面，钻井和地震剖面层序地层研究的成果，以露头剖面和钻井的层序地层研究为主要依据，以地震层序格架为指导，首次在塔里木盆地北部寒武－奥陶纪地层中建立起了以层序为单位的层序地层横向对比关系，并在此基础上建立了该区寒武－奥陶纪的层序地层格架，揭示了塔里木盆地北部寒武－奥陶纪沉积层序的时空分布规律。

SEQUENCE STRATIGRAPHIC FRAMEWORK OF THE CAMBRIAN-ORDOVICIAN IN NORTHERN TARIM BASIN

Sequence stratigraphy is a science to study the distribution model of strata. Sequence stratigraphic framework can reveal the law of distribution of depositional sequences in time and space, so it is one of the most important aspects in sequence stratigraphy. Based on the results of sequence stratigraphic research in the outcrop, boring and seismic sections, the sequence strati-graphic framework of the Cambrian- Ordovician in northern Tarim Basin has been constructed for the first time. It is revealed that the depositional center of the Cambrian-Lower Ordovician is located in eastern Manjiaer area and in the Middle-Upper Ordovician the depositional center shifts to the eastern Manjiaer and western kalpin areas. Accordingly, the composite condensed sections with a better potentiality of oil-generation are mainly developed in the eastern Manjiaer and western Kalpin areas.