浙江江山奥陶系宁国组疑源类化石的发现及其地质意义  

The Discovery and the Geological Significance of Acritarchs the NingguoFormation in Jiangshan Area, Zhejiang Province

作　　者：许玩宏[1] 尹磊明[2] 郭福生[3] 彭花明[3] 

机构地区：[1]惠州大学地理系,广东惠州516001 [2]中国科学院南京地质古生物研究所,江苏南京210098 [3]华东地质学院地球科学系,江西抚州344000

出　　处：《华东地质学院学报》2002年第1期6-8,共3页Journal of East China Geological Institute

基　　金：广东省教育厅高校自然科学研究项目(0 1 75)

摘　　要：报道了发现于浙江江山奥陶系宁国组的疑源类化石 ,计 16属 ,以Baltisphaeridium ,Leiosphaeridia ,Multipli cisphaeridium ,Peteiosphaeridium ,Rhopaliophora最常见。结合其它地层古生物资料 ,简要讨论这些微体化石的地层及环境意义。The ningguo Formation in Jiangshan Area,Zhejiang Province is 54.70 m thickness and consists of black to grey-green shales with graptolite Azygograptus suecicus, Cardiograptus amplus Glyptograptus austrodentatus etc. which suggest an Arenigian age. A rich acritarch assemblage, including 16 genera, is found from the Ningguo Formation of Lower Ordovician Series 5 km northwest of Jiangshan city, Zhejiang province. All Genera in the assemblage were also described previously from Arenig-Llanvirn in other area. Based on acritarchs,the authors think that Jiangshan area was in shallow water during Arenigian age.

关 键 词：奥陶系 宁国组 凝原类化石 激光 微体化石 古生物 

分 类 号：Q915.642[天文地球—古生物学与地层学] Q915.8[生物学—古生物学]