地质科学
     首页 | 过刊浏览 |  本刊介绍 |  编委会 |  投稿指南 |  期刊征订 |  留言板 |  批评建议 |  联系我们 |  English
地质科学  1980, Vol. 15 Issue (2): 112-124    DOI:
论文 最新目录 | 下期目录 | 过刊浏览 | 高级检索  |   
中国南方的二叠—三叠系界线
范嘉松, 孙亦因, 张守信
ON THE PERMIAN-TRIASSIC BOUNDARY IN SOUTHERN CHINA
Fan Jiasong, Sun Yiyin, Chang Shouxin
 全文: PDF (600 KB)   HTML( )   输出: BibTeX | EndNote (RIS)      背景资料
摘要 

海相三叠系广泛发育于中国南方,含有丰富的动物化石:瓣鳃类、菊石、腹足类及介形虫等。在此区内,海相二叠系也极为发育,有许多二叠—三叠系连续沉积剖面。因此,二叠—三叠系的界限剖面,可以在许多地点见到。 二叠—三叠系的界限日益受到国际地层学界的注意。

服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
关键词:   
Abstract

The Permian-Triassic Boundary profiles described in this paper were studied by the authors from Zunyi district, northern Guizhou, and other profiles surveyed by other colleagues from Zhejiang and Jiangxi prov are also cited here for the purpose of fully understanding the general feature of the Permian-Triassic boundary in southern China.The marine Triassic formation of Zunyi district, northern Guizhou is one of the well-developed marine Triassic in southwestern China, it is composed of carbonates and elastics with total thickness up to serveral hundred meters. In this district, the Triassic formation is underlain by upper Permian Changxing formation composed of ’ dark grey thick-bedded or massive limestones with a lot of cherty nodules. The stra-tigraphical boundary between the two formations is very distinct with continuous succession of sedimentation, thus providing fortunate conditions for studying Permian-Triassic boundary.From the lowermost Triassic at Zunyi district, a rich collection of bivalves with predominately Claraia wangi, Cl. griesbachi, Oxytoma scythicum and Bakevellia costata has been found, but no ammonites occur; through percentage calculation of the number of the total individuals of each species, we have noted that the fauna is composed predominately of Claraia wangi, about 50%. Since Claraia griesbachi is usually associated with Otoceras, Ophiceras in Himalaya, the horizon with Claraia wangi at the basal part of Lower Triassic in South China may be equivalent to Lower Griesba-chian or Otoceras woodwardi zone.The occurrence and its world distribution of Claraia wangi, Cl. griesbachi assemblage have important significance in defining the Permian-Triassic boundary. According to present information available, the distribution of Claraia wangi is confined in southern China and the northern part of Vietnam, although this species has been reported in Transcaucas, the occurrence of this species is yet to be substantiated. The species of Claraia griesbachi is distributed in Himalaya, South China, North Vietnam and Malaya. Oxytoma scythicum occurs only in Southern China, no Oxytoma has been found from other regions of the world, thus it could be assumed that South China may be regarded as a special faunal realm during early Early Triassic, and that this assemblage may be regarded as the most primary fauna-assemblage, of which Claraia wangi was spread eastward and westward into Tethys and Arctic-Pacific region respectively, and eventually evolved into Claraia clarai, Cl. aurita, having a worldwide distribution during the later time.The Permian-Triassic mixed fauna have been found at many localities in South China, of which the typical Permian brachiopod Crurithyris usually associates with Early Triassic bivalves. It seems true that the typical Permian brachiopod might survive into Early Triassic, therefore we suggest that the first occurrence of Claraia wangi in basal part of Lower Triassic can be regarded as the beginning of the lowermost Triassic, even though it contains Permian BraChiopods.

Key words:   
引用本文:   
. 1980, 中国南方的二叠—三叠系界线. 地质科学, 15(2): 112-124.
. ON THE PERMIAN-TRIASSIC BOUNDARY IN SOUTHERN CHINA[J]. Chinese Journal of Geology, 1980, 15(2): 112-124.
 
没有本文参考文献
[1] . 封面-目录-封底[J]. 地质科学, 2019, 54(4): 0-0.
[2] 郭旭东 丁林 蔡福龙 王厚起 岳雅慧. 雅鲁藏布江缝合带西段仲巴地区俯冲—增生过程[J]. 地质科学, 2019, 54(4): 1031-1047.
[3] 汤文坤 李正友 段磊 王世锋. 青藏高原南羌塘盆地多玛地区晚新生代伸展构造特征[J]. 地质科学, 2019, 54(4): 1048-1061.
[4] 央金拉姆 季建清 徐芹芹 王昌盛 苏君 涂继耀 彭玉恒 邵媛燕 钟大赉 米玛次仁. 藏东南帕隆藏布现今河流地貌特征及其晚第四纪演化[J]. 地质科学, 2019, 54(4): 1062-1084.
[5] 李洪辉 董洪奎 杜德道 张立平 王祥 陈秀艳 李曰俊. 塔里木盆地麦盖提斜坡及周缘断裂及其对油气成藏的控制作用[J]. 地质科学, 2019, 54(4): 1085-1099.
[6] 吴晓智 周刚 何登发 王小娟 郭秋麟 郑民. 四川盆地川东地区高陡构造形成机制与天然气聚集[J]. 地质科学, 2019, 54(4): 1100-1113.
[7] 李大军 陈洪德 侯明才 徐胜林 庞崇友 郭海洋. 四川盆地中二叠世栖霞期—茅口期岩相古地理特征及其地球动力学机制探讨[J]. 地质科学, 2019, 54(4): 1114-1134.
[8] 叶涛 韦阿娟 曾金昌 邓辉 彭靖淞 鲁凤婷. 渤海湾盆地中生代构造差异演化与潜山油气差异富集[J]. 地质科学, 2019, 54(4): 1135-1154.
[9] 许福美 姜琳 鲍道亮 刘明松 邱占林. 龙永煤田童子岩组层序地层格架与聚煤规律研究[J]. 地质科学, 2019, 54(4): 1155-1166.
[10] 林士扬 季建清 苏君. 全球地震震源深度统计分析与地震层分布[J]. 地质科学, 2019, 54(4): 1167-1184.
[11] 李振伟 宋传中 李加好 王阳阳 袁芳 王微 陈守文. 郯庐断裂带桐城段构造变形解析[J]. 地质科学, 2019, 54(4): 1185-1209.
[12] 何心月 李理. 复杂伸展盆地区平衡剖面的恢复方法[J]. 地质科学, 2019, 54(4): 1210-1222.
[13] 余烨 张昌民 李少华 杜家元 黄俨然 王莉. 低可容纳空间三角洲层序地层及其控砂模式[J]. 地质科学, 2019, 54(4): 1223-1236.
[14] 刘富军 杨庆坤 郭福生 孙传敏 陈留勤 华琛. 粤北丹霞盆地上白垩统丹霞组锦石岩段顶部泥岩岩石地球化学特征及其地质意义[J]. 地质科学, 2019, 54(4): 1237-1251.
[15] 宋宏 郭雪莲 贺陆胜. 晚泥盆世古土壤元素地球化学特征及其古气候意义[J]. 地质科学, 2019, 54(4): 1252-1264.
 
版权所有 © 2009-2017 《地质科学》编辑部
地址:北京9825信箱  邮政编码:100029
电话:010-82998109  010-82998115