应用粒度成因单元划分高分辨率层序地层基准面旋回  

Application of Grain-size Genetic Unit to the Division of Baselevel Cycles in High-resolution Isochronous Sequence

作　　者：郑庆华[1] 柳益群[1] 张海军[2] 李寿武[3] 朱静明[3] 马红星[3] 

机构地区：[1]西北大学地质学系,西安710069 [2]中国地质大学资源学院,武汉430074 [3]长庆油田采油五厂,西安710000

出　　处：《沉积学报》2008年第3期376-383,共8页Acta Sedimentologica Sinica

基　　金：吐鲁番坳陷北部及柴窝堡凹陷油气勘探前景综合评价项目;高等学校全国硕士学位论文作者专项资助

摘　　要：在Goodwin和Anderson于1985提出的PAC假说基础上,针对目前基准面旋回级别划分较为混乱的状况,将基准面旋回赋予了自旋回和异旋回的涵义,探索性地提出了粒度成因单元的概念和研究方法,并将其应用到柴窝堡盆地中二叠统芦草沟组高分辨率层序地层的研究中,建立了该区中二叠统芦草沟组高分辨率层序地层格架,划分出了2个长期基准面旋回6个中期粒度成因单元以及和体系域相似的5个层段。On the basis of the hypothesis of PAC which was presented by Goodwin and Anderson in 1985, considering the division of base-level cycles was extremely indefinite, this paper attached the autocyclicity and allocyclicity to the concepts of base-level cycle. The concept of the grain-size genetic unit and its research methods were put forward, and applied to establish high-resolution isochronous sequence framework of Loucaogou Formation of Middle Permian in Chaiwopu basin. There totally 2 long base-level cycle sequence, 6 middle-term grain-size genetic units, 5 members which similar to 5 system tracts , were distinguished from Loucaogou Formation of Middle Permian in Chaiwopu basin.

关 键 词：柴窝堡盆地 中二叠统芦草沟组 高分辨率层序地层 粒度成因单元 

分 类 号：P539.2[天文地球—古生物学与地层学]