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  1998, Vol. Issue (3): 257-266    DOI:
论文 最新目录 | 下期目录 | 过刊浏览 | 高级检索  |   
东喀喇昆仑北坡三叠纪复理石中遗迹化石及地质意义
张国成1, 李继亮2
1. 西南石油学院石油天然气勘探开发国家重点实验室 南充 637001;
2. 中国科学院地质研究所 北京 100029
TRIASSIC FLYSCH TRACE FOSSILS AND THER GEOLOGICAL SIGNIFICANCE FROM EAST KARAKORUM MOUNTAINS, CHINA
Zhang Guocheng1, Li Jiliang2
1. Southwest Petroleum Institute, Nanchong, Sichuan Province 637001;
2. Institute of Geology, Chinese Academy of Sciences, Beijing 100029
 全文: PDF (470 KB)   HTML( )   输出: BibTeX | EndNote (RIS)      背景资料
摘要 新疆喀喇昆仑山东北侧的中下三叠统河尾滩群是形成于海底浊积扇中外扇环境的浊积岩,其薄层和中厚层砂岩中发育了一套半深水-深水遗迹化石,共有11属12种:Bergaueria sp.;Chondrites sp.;Cosmorhaphe lobata;Glockeria sp.;Gordia sp.;Helminthopsis sp.;Muensteria sp.;Palaeophycos striatus;P.tubularis;Spirophycos sp.;Thalassinoides sp.和简单型Zoophycos sp该遗迹群落不能简单地归入Seilacher的深海Nereites遗迹相。根据共生关系,该遗迹群落可以划分为3个组合。组合1包括Bergaueria sp.,Muensteria sp.,Palaeophycos striatusThalasinoides sp.;组合2只有Zoophycos组成;组合3由深水类型遗迹化石组成,包括Chondrites sp.,Cosmorhaphe lobata,Gordia sp.,Helminthopsis sp.,Palaeophycos tubularis,Spirophycos sp..遗迹组合的生态分析表明其形成水深在300-2000m。遗迹化石产出岩层未见浅水沉积标志支持这一推论。该套遗迹化石在青海省的果洛、玉树地区相同时代的复理石沉积中亦有产出, 表明喀喇昆仑以北在三叠纪时有一个延伸范围较大的深海盆或洋盆。
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
张国成
李继亮
关键词东喀喇昆仑   三叠纪   遗迹化石     
Abstract: The Lower Middle Triassic Heweitan Group on the northeastern side of the Karakorum Ranges in Xinjiang,China,is interpreted as having been deposited in middle to outer deep-sea fan complex.The strata are composed of turbiditic sandstone that exhibit Tbe,Tbcde,Tcde and Tde Bomma sequences and mudstones.A moderately diverse and relatively abundant trace fossil community is found in the Group,consisting,at ichnospecific level,of eleven froms: Bergaueria sp.; Chondrites sp.; Cosmorhaphe lobata;Glockeria sp.; Gordia sp.; Helminthopsis sp.; Muensteria sp.; Palaeophycos striatus;P.tubularis;Spirophycos sp., Thalassinoides sp. and Zoophycos simple form.The trace fossil community occurred in the deep-sea fan does not fit simply into Seilacher’s deep-sea Nereites ichnofacies.Based on the co-occurring relation,three associations have been recognized.Association 1 contains Bergaueria sp., Muensteria sp., Palaeophycos striatus,Thalassinoides sp.Though they are typical shallow water types in Seilacher’s ichnofacies model,they occur in turbidited deposited in middle submarine fan herein.The host rock that does not have shallow water marks indicates that they had been formed below strom wave base.Association 2 consists of only Zoophycos. The analysis of its morphology and comparison to its modern analogues suggest that it was built in a well-oxygenzted substrate with a depth of as much as 2000m.Association 3 is mostly diverse,comprising typical deep water Nereites ichnofacies representatives,such as Cosmorhaphe lobata,Glockeria sp.and Chondrites sp.,and ichnofacies breaking forms of Palaeophycos tubularis,Gordia sp., Helminthopsis sp and Spirophycos sp.The ethological and ecological analyses suggest a probable water depthranging from 300m to 2000m,which is accordant to the conclusion deduced from lithological analysis.These three ichnofossil associations occurred vertically from 3/2 to 1,showing a upward decrease of waterdepth. Similar trace fossil suite had been found in the turbidites of same age at Yushu and Guoluo districts of Qinghai Province,which indicates that there probably was a wide ocean to the north of the Qiangtang Micro-contient.
Key wordsEast Karakorum   Trinssic   Trace fossils   
收稿日期: 1996-11-12;
基金资助:国家“三○五”项目
引用本文:   
张国成,李继亮. 1998, 东喀喇昆仑北坡三叠纪复理石中遗迹化石及地质意义. 地质科学, (3): 257-266.
Zhang Guocheng,Li Jiliang. TRIASSIC FLYSCH TRACE FOSSILS AND THER GEOLOGICAL SIGNIFICANCE FROM EAST KARAKORUM MOUNTAINS, CHINA[J]. Chinese Journal of Geology, 1998, (3): 257-266.
 
没有本文参考文献
[1] 马德龙 潘建国 张虎权 王宏斌 王彦君 魏彩茹 陈雪珍. 准噶尔盆地南缘小渠子背斜T/P 同构造不整合几何学、运动学特征及地质意义[J]. 地质科学, 2018, 53(1): 146-154.
[2] 张强, 张光亚, 李曰俊, 温志新, 磊, 赵岩, 刘亚雷. 卡拉库姆盆地晚二叠世-三叠纪的构造属性讨论[J]. 地质科学, 2016, 51(1): 157-164.
[3] 申亮, 刘永江, 温泉波, 李伟民, 冯志强. 内蒙古科尔沁右翼前旗哈拉黑地区地层锆石U-Pb年代学研究及其地质意义[J]. 地质科学, 2016, 51(1): 220-238.
[4] 王军. 哈密坳陷二叠纪—三叠纪原型盆地恢复及沉积中心演化特征[J]. 地质科学, 2013, 48(1): 149-166.
[5] 陶辉飞, 王清晨, 孙枢, 阳孝法, 姜琳. 准噶尔盆地东北缘早石炭世南明水组沉积环境及构造背景分析[J]. 地质科学, 2012, 47(4): 941-954.
[6] 齐英敏, 李曰俊, 王月然, 刘亚雷, 朱海燕, 刘立炜, 莫涛, 陈延贵. 塔里木盆地西北缘沙井子构造带断裂构造分析[J]. 地质科学, 2012, (2): 265-277.
[7] 唐立梅1,2陈汉林1,2 董传万1,2 沈忠悦1,2 程晓敢1,2 付璐露1,2. 海南岛三叠纪中基性岩的年代学、地球化学及其地质意义[J]. 地质科学, 2010, 45(04): 1139-1155.
[8] 李曰俊1 张洪安2 钱一雄2 孟庆龙2 赵岩1 刘亚雷1. 关于南天山碰撞造山时代的讨论[J]. 地质科学, 2010, 45(01): 57-065.
[9] 袁文芳, 陈世悦, 曾昌民, 胡斌. 渤海湾盆地东营凹陷古近纪Paleodictyon遗迹化石的发现及其意义[J]. 地质科学, 2007, (4): 779-786.
[10] 邓希光, 郑祥身, 刘小汉, 杨式溥. 西南极利文斯顿岛晚三叠世遗迹化石及其环境意义[J]. 地质科学, 2000, (4): 422-431.
[11] 吴浩若. 桐柏“三叠纪早期”放射虫质疑[J]. 地质科学, 1998, (1): 125-126.
[12] 杜远生, 冯庆来. 桐柏“三叠纪早期”放射虫的补充说明——答吴浩若[J]. 地质科学, 1998, (1): 127-128.
[13] 王慧中. 东营凹陷沙河街组生物扰动构造半定量分析试验[J]. 地质科学, 1996, (3): 287-296.
[14] 晋慧娟, 李育慈. 西秦岭二叠纪-三叠纪遗迹化石及其环境意义[J]. 地质科学, 1995, (4): 321-328.
[15] 李菊英, 晋慧娟. 新疆准噶尔盆地西北缘石炭纪浊积岩系中遗迹化石的发现及其意义[J]. 地质科学, 1989, (1): 9-15.
 
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
京ICP备05029136号-10