| 四川广元志留系Ludlow统的再研究兼论车家坝组的含义 |
| |
| 引用本文： | 唐鹏,黄冰,王成源,徐洪河,王怿.四川广元志留系Ludlow统的再研究兼论车家坝组的含义[J].地层学杂志,2010,34(3). |
| |
| 作者姓名： | 唐鹏 黄冰 王成源 徐洪河 王怿 |
| |
| 作者单位： | 现代古生物学和地层学国家重点实验室,江苏南京,210008;中国科学院南京地质古生物研究所,江苏南京,210008;现代古生物学和地层学国家重点实验室,江苏南京,210008;中国科学院南京地质古生物研究所,江苏南京,210008;现代古生物学和地层学国家重点实验室,江苏南京,210008;中国科学院南京地质古生物研究所,江苏南京,210008 |
| |
| 基金项目： | 中国科学院知识创新工程项目(No.KZCX2-YW-Q05-01); 国家重点基础研究发展计划项目(No.2006CB806402); 国家自然科学基金(No.40772007,J09300006,40839910); “Geobiodiversity Database”联合资助 |
| |
| 摘 要： | 四川广元地区志留纪晚期地层曾被划分为金台观组、车家坝组和中间梁组,后被厘定合并为一个组,即车家坝组。通过对岩性组合特征和生物化石群面貌的分析,广元地区晚志留世地层在岩性、生物化石生物群面貌方面具有一致性,赞成将三组归入同一个岩石地层单元——车家坝组,代表近岸、正常浅海(平均浪基面以上)沉积(BA2—BA3)。对比分析表明,该组的牙形刺Ozarkodina crispa应鉴定为Ozarkodina snajdri。这是O.snajdri牙形刺带在中国的首次报道。依据牙形刺化石,车家坝组的时代被修订为中Ludlow世晚期—晚Ludlow世早期。该组上部发现几丁石Sphaerochitina sp.组合,可与O.snajdri牙形刺带和bohemicus tenus-kozlowskii笔石带进行对比。
|
| 关 键 词： | 车家坝组 Ludlow统 志留系 广元 四川 |
RESTUDY AND DEFINITION OF THE LUDLOW CHEJIABA FORMATION OF THE GUANGYUAN AREA,SICHUAN PROVINCE |
| |
| TANG Peng ,HUANG Bing ,WANG Cheng-Yuan ,XU Hong-He , WANG Yi State Key Laboratory of Palaeobiology , Stratigraphy,Nanjing , Nanjing Institute of Geology , Palaeontology,Chinese Academy of Sciences.RESTUDY AND DEFINITION OF THE LUDLOW CHEJIABA FORMATION OF THE GUANGYUAN AREA,SICHUAN PROVINCE[J].Journal of Stratigraphy,2010,34(3). |
| |
| Authors: | TANG Peng HUANG Bing WANG Cheng-Yuan XU Hong-He WANG Yi State Key Laboratory of Palaeobiology Stratigraphy Nanjing Nanjing Institute of Geology Palaeontology Chinese Academy of Sciences |
| |
| Institution: | TANG Peng~ 1) 2),HUANG Bing~ 2),WANG Cheng-Yuan~ 2),XU Hong-He~ 1) 2) , WANG Yi~ 1) 2) 1) State Key Laboratory of Palaeobiology , Stratigraphy,Nanjing 210008,2) Nanjing Institute of Geology , Palaeontology,Chinese Academy of Sciences |
| |
| Abstract: | The Late Silurian stratigraphy of the Guangyuan area,northern Sichuan Province,was subdivided into three formations including,in ascending order,the Jintaiguan Fm,Chejiaba Fm and Zhongjianliang Fm. On the basis new lithostratigraphic and biostratigraphic data,these three formations are combined into the Chejiaba Fm. The Chejiaba Fm,consisting of sandstone and mudstone with near shore marine red beds,intercalated occasionally with calcareous sandstone and limestone lenses in the middle and upper parts; thin-... |
| |
| Keywords: | Chejiaba Formation Ludlow Silurian Guangyuan Sichuan |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
