古地理学报Issue(5)：645-652,8.DOI:10.7605/gdlxb.2015.05.053
内蒙古东乌旗地区中下泥盆统泥鳅河组沉积相研究
Sedimentary facies of the Middle-Lower Devonian Niqiuhe Formation in East Ujimqin Qi of Inner Mongolia
摘要
Abstract
The Middle-Lower Devonian Niqiuhe Formation,with about 1 000,m thick,developed at the East Ujimqin Qi of Inner Mongolia.It mainly consists of mudstone,siltstone and limestone.A great deal of brachiopoda and coral fossils are often found in the siltstone.Storm deposit and the trace fossil of Beaconites were found for the first time.The storm deposits consist from the bottom to the top of four seg_ments,namely graded bedding,parallel bedding,hummocky cross_bedding and wavy bedding.Beaco-nites is characterized by pipe wall and horizontal “V” back_packing structure.The research of petrofacies, fossils,storm deposits and Beaconites shows that the Niqiuhe Formation in East Ujimqin Qi area belongs to shallow sea facies.关键词
泥鳅河组/中下泥盆统/沉积相/风暴沉积/Beaconites/遗迹化石/东乌旗/内蒙古Key words
Niqiuhe Formation/Middle_Lower Devonian/sedimentary facies/storm deposit分类
天文与地球科学引用本文复制引用
杜叶龙,程银行,李艳锋,李敏,胡晓佳,张永,张天福,牛文超..内蒙古东乌旗地区中下泥盆统泥鳅河组沉积相研究[J].古地理学报,2015,(5):645-652,8.基金项目
中国地质调查项目《内蒙古15万奥尤特、东方红公社、才伦郭少、巴彦都兰、东乌旗农场、石灰窑幅区域地质矿产调查》（编号1212011220446）资助 （）
