摘要
笔者在 1∶ 5万堡子坝幅、临江幅区域地质调查中 ,对扬子地台西北缘文县地区的泥盆纪地层进行了重新研究 ,共识别出 个三级层序 ,层序均发育有 TST和 HST,前 3阶层序缺乏 L ST和 SMST,第四个层序发育 SMST。通过对区内沉积层序的对比 ,初步建立了扬子西北缘泥盆纪地层格架 ,并对泥盆系区域地层格架作了探讨。
The strata of Devonian in the north-west border of Wengxian country of yangtze region was explored by the authors during the surveying of the 1∶5000 Buziba sheet and Lingjiang sheet.The results of reseach show that it may be divided into four three-order sequences.And each sequence exists TST and HST.The first three-sequence didn't find LST and SMST. The last one has SMST.After sedimentary sequences contrast of the region,the stratigraphic framework of Devonian was bas built and analycised at north-west border in yangtze region.
出处
《西北地质》
CAS
CSCD
2001年第4期61-66,共6页
Northwestern Geology
基金
1: 5万堡子坝幅
临江幅区调成果
