| 湖北大冶沙田下三叠统菊石、双壳动物群的发现及其地层意义 |
| |
| 引用本文： | 朱利东,丁梅华,刘华夏.湖北大冶沙田下三叠统菊石、双壳动物群的发现及其地层意义[J].地球科学,1992(3). |
| |
| 作者姓名： | 朱利东 丁梅华 刘华夏 |
| |
| 作者单位： | 中国地质大学地质系
(朱利东，丁梅华)，中国地质大学地质系(刘华夏) |
| |
| 摘 要： | 本文所研究的湖北大冶沙田下三叠统菊石、双壳动物群,包括菊石10属11种,双壳类4属9种。文中建立了5个菊石带:Lytophiceras带、Gyronites带、Flemingites带、Pseudosagece-ras—Xenodiscoides带和Anasibirites带;2个双壳动物带:Claraia griesbachi带和Cl.concentrica带,并依据动物群面貌,将原大冶群的时代详细划分为大冶组和观音山组。大冶组的时代相当于格里斯巴赫期至亭纳尔期,观音山组的时代相当于斯密斯期至斯派斯期。
|
| 关 键 词： | 下三叠统 菊石 双壳 动物群 沙田 大冶县 湖北省 |
THE DISCOVERY OF AMMONOID AND BIVALVE FAUNAS OF THE LOWER TRIASSIC AND THEIR STRATIGRAPHIC SIGNIFICANCE IN SHATIAN, DA YE COUNTY,HUBEI PROVINCE |
| |
| Zhu Lidong Ding Meihua Liu Huaxia.THE DISCOVERY OF AMMONOID AND BIVALVE FAUNAS OF THE LOWER TRIASSIC AND THEIR STRATIGRAPHIC SIGNIFICANCE IN SHATIAN, DA YE COUNTY,HUBEI PROVINCE[J].Earth Science-Journal of China University of Geosciences,1992(3). |
| |
| Authors: | Zhu Lidong Ding Meihua Liu Huaxia |
| |
| Abstract: | The Lower Triassic ammonoids and bivalves dealt with in this paper are collected from Shatian, Daye County, Hubei Province. The ammonoids studied include 11 species of 10 genera and the bivalves 9 species of 4 genera. Five ammonoid zones (Lytophiceras zone, Gyronites zone, Flemingites zone, Pseudosageceras - Xenodiscoides zone and Anasibirites zone) and two bivalve zones (Claraia griesbachi zone and Cl. concentrica zone) were recognized. According to the lithological and faunal features, the Lower Triassic of this area, i. e. Daye Group is divided into Daye Formation and Guanyinshan Formation. The age of the Daye Formation is considered from Griesbachian to Dienerian, and the age of the Guan yinshan Formation is considered from Smithian to Spathian. |
| |
| Keywords: | Lower Triassic ammonoid bivalve fauna Shatian Daye County Hubei Province |
| 本文献已被 CNKI 等数据库收录！ |
