内蒙古银根-额济纳旗盆地白垩纪轮藻化石  

CRETACEOUS CHAROPHYTES FROM THE INGGEN-EJIN QI BASIN OF INNER MONGOLIA

作　　者：彭维松 王启飞[2] 薛铎 卢辉楠[2] 张放 

机构地区：[1]中国石油华北油田分公司勘探开发研究院,河北任丘062552 [2]中国科学院南京地质古生物研究所,南京210008 [3]华北石油地质局规划设计研究院,郑州450006

出　　处：《微体古生物学报》2003年第4期365-376,共12页Acta Micropalaeontologica Sinica

基　　金：国家重点基础研究发展规划(G2 0 0 0 0 7770 0 );中国科学院资源环境领域知识创新工程课题(KZCX2 -114 )资助项目

摘　　要：本文记述了内蒙古银根 -额济纳旗盆地 8口钻井的白垩纪轮藻化石 ,建立两个轮藻化石组合 :Mesocharastipitata- Clypeator jiuquanensis- Flabellochara hebeiensis组合 ,分布于巴音戈壁组与苏红图组 ,地质时代为Barrem ian期 ;Aclistochara mundula- Mesochara voluta组合产于银根组 ,地质时代为 Aptian—The paper records some Cretaceous charophytes from eight boreholes in the desert Inggen Ejin Qi Basin of Inner Mongolia. Two local charophyte assemblages have been established. Mesochara stipitata Clypeator jiuquanensis Flabellochara hebeiensis Assemblage occurs in Bayingebi Formation and Suhongtu Formation; its geologic age is attributed to Barremian. The assemblage also includes Mesochara xuanziensis, M. xiagouensis, Atopochara trivolvis triquetra, Aclistochara huihuibaoensis, A. (Caucasuella) sterra, Peckisphaera paragranulifera and P. multispira . The Inggen Formation of Aptian to Albian, yields Aclistochara mundula Mesochara voluta Assemblage, which is predominent with Aclistochara , including A. bransoni, A. mundula, A. (Caucasuella) raricostata, A . cf. linxiensis, A . cf. huihuibaoensis , and contains Mesochara voluta, M . sp., Lamprothamnium cf. altanulaensis.

关 键 词：轮藻 白垩纪 银根-额济纳旗盆地 内蒙古 

分 类 号：Q913[天文地球—古生物学与地层学]