摘要
起源于被动大陆边缘的层序地层学在应用于我国东部中新生代陆相断陷盆地时,遇到许多与海相层序地层模式不同的现象,诸如陆相层序地层形成的控制因素、自旋回和异旋回、体系域及岩石地层学与层序地层学的区别。笔者认为构造沉降和气候是控制陆相层序形成的因素,并通过湖平面的相对变化反映出来;通过精细的单相分析是在异旋回中识别自旋回现象的重要方法之一,也是解决陆相层序地层划分多重性的重要方法;陆相断陷盆地在进行体系域划分时,应该考虑具有断层坡折带和无断层坡折带的情况,并分析在具断层坡折带盆地的不同情况;层序地层学与岩石地层学既有区别又有联系,但层序地层的界面具有相对等时性。
When sequence stratigraphy originated from the passive continental margin applied to the meso cenozoic continental rift basin in eastern China,having encountered many phenomenons that different from marine sequence stratigraphic model,such as the controlling factors of continental sequence stratigraphy formation,spin echo and allocyclicity,system tract,the difference between lithostratigraphy and sequence stratigraphy.Author holds that tectonic subsidence and climate are the factors of controlling continental sequence formation,which are reflected out from lake level＇s relative change.By the elaborate single phase analysis not only is one of the important method that identifying the spin echo＇s phenomenons in the allocyclicity,but also is the important method of solving continental sequence stratigraphy dividing multiplicity.When continental rift basin proceeding system tract＇s division,the case of with or without fault slope break should be considered and analysising different conditions of the basin which has fault slope break.There are both difference and connection in the sequence stratigraphy and lithostratigraphy,but sequence stratigraphy＇s interface has relative isochronism.
出处
《微计算机信息》
2011年第8期122-123,149,共3页
Control & Automation
关键词
控制因素
自旋回
异旋回
体系域
岩石地层学
controlling factors
spin echo
allocyclicity
system tract
lithostratigraphy
