塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义

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塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义

方国庆, 刘德良

文章导航 > 沉积学报 > 2000 > 18(1): 68-72

方国庆, 刘德良. 塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义[J]. 沉积学报, 2000, 18(1): 68-72.

引用本文:

方国庆, 刘德良. 塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义[J]. 沉积学报, 2000, 18(1): 68-72.

FANG Guo qing, LIU De liang. Paleoenviromental Significance of Trace Fossils in Tempestite of Qilang Fm.(Middle Ordovician)of Northwestern Tarim Basin in China[J]. Acta Sedimentologica Sinica, 2000, 18(1): 68-72.

Citation:

FANG Guo qing, LIU De liang. Paleoenviromental Significance of Trace Fossils in Tempestite of Qilang Fm.(Middle Ordovician)of Northwestern Tarim Basin in China[J]. Acta Sedimentologica Sinica, 2000, 18(1): 68-72.

方国庆, 刘德良. 塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义[J]. 沉积学报, 2000, 18(1): 68-72.

引用本文:

方国庆, 刘德良. 塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义[J]. 沉积学报, 2000, 18(1): 68-72.

FANG Guo qing, LIU De liang. Paleoenviromental Significance of Trace Fossils in Tempestite of Qilang Fm.(Middle Ordovician)of Northwestern Tarim Basin in China[J]. Acta Sedimentologica Sinica, 2000, 18(1): 68-72.

Citation:

FANG Guo qing, LIU De liang. Paleoenviromental Significance of Trace Fossils in Tempestite of Qilang Fm.(Middle Ordovician)of Northwestern Tarim Basin in China[J]. Acta Sedimentologica Sinica, 2000, 18(1): 68-72.

塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义

1.
中国科学院兰州地质研究所兰州 730000;
2.
中国科学技术大学地球与空间科学系合肥 230026

作者简介:
方国庆,男,1963年出生,副研究员,沉积及构造地质学

中图分类号: Q911.28;P534.42

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文章访问数: 635
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Paleoenviromental Significance of Trace Fossils in Tempestite of Qilang Fm.(Middle Ordovician)of Northwestern Tarim Basin in China

1.
Lanzhou Institute of Geology,Chinese Academy of Sciences,Lanzhou 730000;
2.
Department of Earth & Space Sciences,China Science and Technology University, Hefei 230026

摘要: 塔里木盆地西北缘柯坪断隆中奥陶统其浪组中上段L M灰泥互层沉积地层中发育远源钙质风暴岩,其中发育属Zoophycos遗迹相的Phycodes Megagrapton遗迹组合,包括Belorhape,Circulichnus,Dendrichnites,Gordia,Granularia,Megagrapton,Phycodes,Planolites,Protopaleodictyon,Rhabdoglyphas等遗迹属。该组合遗迹形态主要为分枝迹,习性以觅食迹为主,显著特点是包含多种深水遗迹分子。这些特征与以往报道的风暴岩中遗迹组合特征有明显的差别。该组合反映其浪组风暴岩形成于滨外风暴浪基面以下水体较深且水动力较弱的静水地带。此组合可以成为判定远源风暴岩以及区分事件和正常灰岩的良好辅助标志。
- 遗迹化石 /
- 风暴岩 /
- 中奥陶统 /
- 塔里木盆地
Abstract: The Qilang Formation of Middle Ordovician in northwest Tarim basin is composed of laminae marl and laminae limestone with abundance graptolites and trilobites.This kind of marl and limestone thin alternation is typical L-M (limestone-marl) cycle.There are about thirty beds of distal calcareous tempestites in Middle-Upper Qilang Formation.In the plane and bottom of the tempestites ten trace fossils were found and they are： Belorhape, Circulichnus, Dendrichnus,Gordia, Granularia,Megagrapton,Phycodes,Planolites,Protopaleodictyon and Rhabdoglyphas. Because of abundance of Phycodes and Magagrapton,these trace fossils can be named Phycodes-Magagrapton assemblage which are predominant in fodinichnia and shape of ramification,and belong to Zoophycos ichnofacies proposed by Seilacher.This assemblage represent quiet lower energy sedimentary environments under main storm wave level.Based on the fact that event deposition has close relation to the trace fossils,it is believed that Phycodes-Megagrapton assemblage can be a fine auxiliary marker to judge distal tempestite and to differentiate the e vent and normal limestone.
- trace fossil tempestite /
- Middle Ordovician /
- Tarim basin /

参考文献(17)

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[2]	Einsele G.Limestone-marl alternation：an overview〔A〕.In：Einsele G, Ricken W, Seilacher A,eds.Cycles and events in stratigraphy〔C〕.Springer-Verlag,Berlin. 1991.23～47
[3]	周志毅，陈丕基.塔里木生物地层和地质演化〔M〕.北京：科学出版社，1991
[4]	周志毅，林焕令.西北地区地层、古地理和板块构造〔M〕.南京：南京大学出版社，1995
[5]	Aigner T.Calcareous tempestites：storm dominated stratification in Upper Muschelkalk limstones(Middle Trias,SW-German)〔A〕.In：Einsele G,Seilacher A.eds.Cycles and events stratigraphy〔C〕. Springer-Verlag,Berlin.,1982.180～198
[6]	方国庆，王多云，张晓宝.甘肃天祝斜壕地区上奥陶统远源钙质风暴岩的发现[J].地层学杂志，1994，18(4)：296～298
[7]	Wu X.Storm generated depositional types and associated trace fossil in Lower Cretaceous shallow marine carbonates of Three Cliffs Bay and Ogmore-by-Sea,South Wales〔J〕. Palaeograph, Palaeoclimatology, Palaeoecology,1982，39：187～202
[8]	Pemberton S G ,Frey R W.Ichnology of storm-influenced shallow marinesequence：Cardium Fm.(U.Cret.) at Seabe,Alberta〔A〕.In： Stott D F,Glass D J, eds.The Mesozoic of Middle North America〔C〕.Canadian Society of Petroleum Geologists Memoir，1984，9：281～304
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[10]	Seilacher A,Aigner T.Storm deposition at the bed,facies,and basin scale：the geologic perspective〔A〕. In：Eins ele G，Ricken W ,Seilacher A, eds.Cycles and events in stratigraphy〔C〕. Springer -Verlag,Berlin：1991.249～267
[11]	吴贤涛，胡斌，王冠中等.豫西焦作地区上石炭统浅海碳酸盐岩中的风暴沉积〔J〕.沉积学报，1987，5(4)：1～13
[12]	Frey R W, Seilacher A.Uniformity in marine invertebrate ichnology〔J〕. Lethaia,1980，13：183～207
[13]	Einsele G,Seilacher A.Distinction of tempestites and turbidites〔A〕. In： Einsele G,Ricken W, Seilacher A,eds.Cycles and events in stratigraphy 〔C〕.Springer -Verlag,Berlin.1991.377～382
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文章访问数: 635
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塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义

1. 中国科学院兰州地质研究所兰州 730000;

2. 中国科学技术大学地球与空间科学系合肥 230026

作者简介:
方国庆,男,1963年出生,副研究员,沉积及构造地质学

收稿日期: 1999-05-05
刊出日期: 2000-03-10

中图分类号: Q911.28;P534.42

关键词:

塔里木盆地

摘要: 塔里木盆地西北缘柯坪断隆中奥陶统其浪组中上段L M灰泥互层沉积地层中发育远源钙质风暴岩,其中发育属Zoophycos遗迹相的Phycodes Megagrapton遗迹组合,包括Belorhape,Circulichnus,Dendrichnites,Gordia,Granularia,Megagrapton,Phycodes,Planolites,Protopaleodictyon,Rhabdoglyphas等遗迹属。该组合遗迹形态主要为分枝迹,习性以觅食迹为主,显著特点是包含多种深水遗迹分子。这些特征与以往报道的风暴岩中遗迹组合特征有明显的差别。该组合反映其浪组风暴岩形成于滨外风暴浪基面以下水体较深且水动力较弱的静水地带。此组合可以成为判定远源风暴岩以及区分事件和正常灰岩的良好辅助标志。

English Abstract

方国庆, 刘德良. 塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义[J]. 沉积学报, 2000, 18(1): 68-72.

引用本文:

方国庆, 刘德良. 塔里木盆地西北缘中奥陶统其浪组风暴岩中遗迹化石及其环境意义[J]. 沉积学报, 2000, 18(1): 68-72.

FANG Guo qing, LIU De liang. Paleoenviromental Significance of Trace Fossils in Tempestite of Qilang Fm.(Middle Ordovician)of Northwestern Tarim Basin in China[J]. Acta Sedimentologica Sinica, 2000, 18(1): 68-72.

Citation:

FANG Guo qing, LIU De liang. Paleoenviromental Significance of Trace Fossils in Tempestite of Qilang Fm.(Middle Ordovician)of Northwestern Tarim Basin in China[J]. Acta Sedimentologica Sinica, 2000, 18(1): 68-72.

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参考文献 (17)

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