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塔里奇克组是南疆北部地区煤田的重要生产层系之一。过去一直将其划归侏罗系的底部,和北疆地区的八通湾组对比。本文根据南北疆三叠、侏罗纪煤系地层的剖面结构、层序和内部接触关系、关键岩组的平面分布、沉积特点和现有生物化石资料,论证了该组是三叠系的顶部层位。北疆与其相应的沉积是郝家沟组而非八道湾组。郝家沟组与八道湾组之间的界线是新疆三叠系和侏罗系的分界线,也是西北地区的层型界线。并从沉积形成过程与地壳运动之关系,指出了形成南北疆三叠、侏罗纪煤系地层之间差异的原因,提出了北疆型和南疆型侏罗系的概念。这对划分对比和研究新疆及近邻地区陆相三叠、侏罗纪煤系地层会有一定参考价值。
The Tarim Basin is one of the important production strata in the coal field in the northern part of southern Xinjiang. In the past it has been assigned to the bottom of the Jurassic, compared with the Batongwan Formation in northern Xinjiang. According to the section structure, sequence and internal contact of the Triassic and Jurassic coal measures strata in South and North Xinjiang, the plane distribution and sedimentary characteristics of the key rocks and the existing biological fossil data, it is demonstrated that this group is the top layer of the Triassic Bit. Beijiang and its corresponding sediments are Haojiagou Formation rather than Badaowan Formation. The boundary between Haojiagou Formation and Badaowan Formation is the dividing line between Triassic and Jurassic in Xinjiang and also the stratified boundary in northwest China. The reasons for the formation of the Triassic and Jurassic coal measures strata in the northern and southern Xinjiang are pointed out. The concepts of the northern and southern Xinjiang Jurassic formations are proposed. It is of some reference value for the division and comparison of terrestrial Triassic and Jurassic coal measures strata in Xinjiang and its adjacent areas.