西昌盆地晚三叠世三角洲的发现及研究意义

STUDY OF LATE TRIASSIC, DELTA AND ITS SIGNIFICANCE IN XICHANG BASIN,SOUTHWESTERN CHINA

本文对西昌盆地上三叠统白湾组（Ｔ＿３ｂ）河湖三角洲沉积特征及其与油气的关系进行详细研究，研究表明，三角洲沉积体系之所以具有丰富的油气资源，是因为它具有自身良好的生储盖组合及圈闭条件。

This paper deals with the sedimentay characteristics of river-lake delta and relative re-lationship with oil and gas of Baiguowan formation ,upper Triassic in Xichang basin,The reasearch result suggests that delta sedimentary systems are of sign ificant oil-gas resources,be-cause of their good source-reservoir-cap rocks associations and traping conditions.