摘要
详细描述了龙门山构造带中南段白石 -苟家大型飞来峰多条龙潭组地层剖面 ,讨论了龙潭组的岩石组合特征及其横向变化规律。根据沉积特征及相对海平面变化规律将区内二叠纪阳新组和龙潭组划分为 4个沉积层序并归于两个层序组 ,讨论了各体系域特征。首次发现区内晚二叠世存在强烈的沉积环境差异 。
Several sections of Longtan Formation within Baishi Goujia klippe in the middle south section of Longmenshan structure zone are described. The lithological association and lateral variation are discussed. Four sequences belonging to two supper sequences of Permian in Yangxin Formation and Longtan Formation are recongnized according to sedimentary characteristics and relative sea level changes. The features of each sequence and system tract are also discussed in detail. It is found that there is obivous variation in the sedimentary environment in Late Permian and the sedimentary environment model in Longtan Period is established .
出处
《成都理工学院学报》
CAS
CSCD
北大核心
2001年第3期241-245,共5页
Journal of Chengdu University of Technology
关键词
龙门山
飞来峰
龙潭组
岩石地层
层序地层
沉积环境
二叠纪
Longmen Mountains
klippe
Longtan Formation
lithostratigraphy
sequence stratigraphy
sedimentary environment
