扬子地台西北缘泥盆纪层序地层研究
On the Devonian sequence stratigraphy of the north-west margin of the Yangtze platform in China
-
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LST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。Abstract: 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 in to 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.
-
Keywords:
- sequence stratigraphy /
- Devonian /
- north-west margin of the Yangtze
-
-
杨祖才.甘肃省西秦岭南部海相泥盆系研究新进展和三河口群的解体[J].甘肃地质,1991,(12). 杜远生.秦岭造山带泥盆纪沉积地质学研究[M].北京:中国地质大学出版社,1997. 董瀚.西秦岭南带石坊群与下泥盆统角度不整合面的发现及地质意义[J].西北地质,1999,(4).
计量
- 文章访问数: 2641
- HTML全文浏览量: 8
- PDF下载量: 3683