CAJ | 학술논문

通过对四川盆地及周缘钻测井资料、野外剖面等观察分析，把志留系划分为两个三级层序，奥陶系五峰组－志留系龙马溪组－石牛栏组组成下部三级层序、志留系韩家店组组成上部三级层序；明确了陆棚沉积体系是志留系主要沉积模式，局部发育台地及三角洲沉积，其中志龙马溪组以深水陆棚沉积为主，发育富有机质笔石页岩、石牛栏组主要为浅水碎屑陆棚、韩家店组主要发育深－浅水陆棚，岩性为紫红色泥页岩，局部为条带状砂岩。
통과대사천분지급주연찬측정자료、야외부면등관찰분석，파지류계화분위량개삼급층서，오도계오봉조－지류계룡마계조－석우란조조성하부삼급층서、지류계한가점조조성상부삼급층서；명학료륙붕침적체계시지류계주요침적모식，국부발육태지급삼각주침적，기중지룡마계조이심수륙붕침적위주，발육부유궤질필석혈암、석우란조주요위천수쇄설륙붕、한가점조주요발육심－천수륙붕，암성위자홍색니혈암，국부위조대상사암。
Based on the detailed analysis of well drilling , logging, and outcrop data, divide the Silurian into two third sequence, Ordovician Wufeng-Silurian Longmaxi-Shiniulan formation composed the lower third sequence, Silurian Hanjiadian formation formed the upper third sequence. Indicated that the shelf faces deposit system was the main sedimentary model in Silurian, platform and delta deposit developed in local areas. The Longmaxi formation sedimentary environment mainly is deep shelf, the lithology characterized by graptolite shale, which with rich organic matter, the Shiniulan formation mainly shallow detrital shelf deposited, Hanjiadian formation developed deep-shallow shelf sedimentary, the lithology was purplish red mud-shale, band sandstone developed in local areas.