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

作　　者：董瀚 张海峰 李鸿睿 

机构地区：[1]甘肃省地勘局第三地质矿产勘查院,甘肃兰州730050

出　　处：《西北地质》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

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.

关 键 词：层序地层 泥盆纪 扬子地台 沉积层序 岩石地层 

分 类 号：P534.44[天文地球—古生物学与地层学]