|
|||||
|
|
| 冀北滦平盆地大店子组中网雕饰叶肢介Clithrograpta属的发现及其意义 | |
| 引用本文： | 牛绍武,李佩贤,等.冀北滦平盆地大店子组中网雕饰叶肢介Clithrograpta属的发现及其意义[J].地质通报,2003,22(2):95-104. |
| 作者姓名： | 牛绍武 李佩贤 |
| 作者单位： | 1. 中国地质调查局天津地质矿产研究所,天津,300170 2. 中国地质科学院地质研究所,北京,100037 3. 石家庄经济学院资源与环境系,河北,石家庄,050031 |
| 基金项目： | 中国地质调查局地质调查项目“中国地层标志化石及重点层型剖面”(No:200013000173),国家科技部项目“中国典型地层剖面的立典研究”(No:DEA20020),基础性工作专项资金资助。 |
| 摘 要： | 在深入研究滦平盆地大店子组叶肢介化石时,于该组上部首次发现了网雕饰叶肢介Clithrograpta属,产出层数多,个体数量大,种的分异度高,为冀北滦平盆地大店子组的地层划分与对比,正确建立冀北-辽西陆相侏罗-白垩系的地层格架,提供了关键而有力的古生物证据。根据这一发现和大北沟组至西瓜园组叶肢介化石组合序列,本区大店子组上部（3-4段）可与辽西建昌盆地“义县组”下部（原大新房子组）对比;证明辽西地区缺失相当于本区的大店子组下部（1-2段）地层,西瓜园组大体相当于辽西的义县组。 |
| 关 键 词： | 网雕饰叶肢介 冀北 滦平盆地 大店子组 |
| 文章编号： | 1671-2552(2003)02-0095-10 |
| 修稿时间： | 2002/9/25 0:00:00 |
Discovery of conchostracan genus Clithrograpta and its significance in the Dadianzi Formation,Luanping basin,northern Hebei |
|
| NIU Shaowu,LI Peixian,TIAN Shugang,PANG Qiqing,LIU Yongqing.Discovery of conchostracan genus Clithrograpta and its significance in the Dadianzi Formation,Luanping basin,northern Hebei[J].Geologcal Bulletin OF China,2003,22(2):95-104. | |
| Authors: | NIU Shaowu LI Peixian TIAN Shugang PANG Qiqing LIU Yongqing |
| Abstract: | In an intensive study of fossil conchostracans from the Lower Cretaceous Dadianzi Formation in the Luanping basin,northern Hebei,the authors found the genus Clithrograpta W.Wang,1987in the upper part of this formation.It is characterized by occurrence in many beds,large numbers of individuals and a high diversity of species.This discovery provides key and strong paleontological evidence for the stratigraphic division and correlation in the Lower Cretaceous Dadianzi Formation in the Luanping basin,northern Hebei and the correct establishment of the continental Jurassic-Cretaceous stratigraphic framework in northern Hebei-western Liaoning.According to this discovery and the conchostracan assemblage se-quence in the Dabeigou Formation and Xiguayuan Formation,the upper part(3rd and4th Members)of the Dadianzi Formation in the area may be correlated with the lower part(original Daxinfangzi Formation)of the"Yixian Formation"in the Jianchang basin,western Liaoning,suggesting that the lower part(1st and2nd Members)of the Dadianzi Formation of the area is absent in western Liaoning;the Xiguayuan Formation is largely equivalent to the Yixian Formation of western Liaoning. |
| Keywords: | Clithrograpta northern Hebei Luanping basin Dadianzi Formation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《地质通报》浏览原始摘要信息 | |
| 点击此处可从《地质通报》下载免费的PDF全文 | |