豫西潭头盆地上白垩统秋扒组遗迹化石与沉积环境

王长征; 胡斌; 杨凯

豫西潭头盆地上白垩统秋扒组遗迹化石与沉积环境

王长征¹,
胡斌^1,2,
杨凯¹

1.
河南理工大学资源环境学院河南焦作 454000;
2.
河南省生物遗迹与成矿过程重点实验室河南焦作 454000

基金项目: 国家自然科学基金项目(批准号:41272117)资助

详细信息

作者简介:
王长征男 1979年生博士研究生讲师沉积学和遗迹学 E-mail: wangchangzheng@hpu.edu.cn

中图分类号: TE121.3⁺1

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Ichnofossils and Sedimentary Environments of the Upper Cretaceous Qiupa Formation in Tantou Basin of Western Henan

1.
Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454000;
2.
Key Laboratory of Biogenic Traces and Sedimentaty Minerals of Henan Province, Jiaozuo, Henan 454000

摘要

摘要: 豫西潭头盆地上白垩统秋扒组为一套陆相碎屑岩沉积,岩性主要为褐红色厚层状或块状的粉砂质泥岩夹多层不稳定的砾岩、砂砾岩或砂岩.本次工作在该组中发现了丰富的遗迹化石:Palaeophycus tubularis(管状古藻迹)、Beaconites autarcticus(南极似塔形迹)、Planolites ichnosp.1(漫游迹,未定种1)、Planolites ichnosp.2(漫游迹,未定种2)、Scoyenia gracilis(纤细斯柯茵迹)、Skolithos ichnosp.(石针迹,未定种)和Rhizoliths(根迹).根据遗迹化石的产状及其围岩的沉积特征,建立了Beaconites-Scoyenia遗迹组合和Palaeophycus -Rhizoliths遗迹组合,并提出了遗迹化石组合的沉积环境分布模式;基于岩性特征、沉积构造和遗迹化石组成特征的综合分析,划分出五种沉积序列类型.秋扒组形成于冲积扇、扇三角洲和湖泊沉积环境,自下而上经历了从冲积扇到扇三角洲再到湖泊的沉积环境演化过程.
- 潭头盆地 /
- 陆相沉积 /
- 遗迹化石 /
- 沉积环境
Abstract: The Upper Cretaceous Qiupa Formation in Tantou Basin of the western Henan province is a set of terrestrial clastic deposits. The lithology is mainly made up of thick-bedded or massive red brown silty mudstone in which intercalated beds are instability of graded bedding or massive gravel, sandy gravel or sandstone. Abundant ichnofossils were found in the strata, including Palaeophycus tubularis, Beaconites autarcticus, Planolites ichnosp.1, Planolites ichnosp.2, Scoyenia gracilis, Skolithos ichnosp., and Rhizoliths. According to the outcrop characteristics of these ichnofossils and the sedimentary features of their surrounding rocks, the Beaconites-Scoyenia ichnoassemblage and Palaeophycus-Rhizoliths ichnoassemblage were established and their sedimentary environmental models were proposed. The Beaconites-Scoyenia ichnoassemblage which is consisted of Beaconites antarcticus, Scoyenia gracilis, Planolites ichnosp.2 and Skolithos ichnosp represents the shore and shallow lacustrine sedimentary environments. The Palaeophycus-Rhizoliths ichnoassemblage which is consisted of Palaeophycus tubularis, Planolites ichnosp.1, Beaconites antarcticus and Rhizoliths represents the lacustrine fan-delta plain to fan-delta front sedimentary environments. Based on the comprehensive analysis of the lithology, sedimentary structures, sedimentary sequences and ichnofossil assemblages of the strata, 5 types of depositional sequences are differentiated and the Qiupa Formation is explained to have formed sequentially from the alluvial fan to lacustrine fan delta and then to shore and shallow lake environments.. In addition, the evolution of sedimentary environments represented in the formation is discussed. The research results not only may enrich the ichnofossil database of terrestrial basins in China and offer new data to complete further continental ichnofacies mode, but also offer scientific evidence to explain the palaeobios survival and preserved palaeoenvironments in Tantou basins of western Henan.
- Tantou Basin /
- terrestrial deposit /
- ichnofossil /
- sedimentary environment

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参考文献(15)

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豫西潭头盆地上白垩统秋扒组遗迹化石与沉积环境

作者简介:
王长征男 1979年生博士研究生讲师沉积学和遗迹学 E-mail: wangchangzheng@hpu.edu.cn

计量

Ichnofossils and Sedimentary Environments of the Upper Cretaceous Qiupa Formation in Tantou Basin of Western Henan

计量

目录

豫西潭头盆地上白垩统秋扒组遗迹化石与沉积环境

1. 河南理工大学资源环境学院河南焦作 454000;

2. 河南省生物遗迹与成矿过程重点实验室河南焦作 454000

作者简介:
王长征男 1979年生博士研究生讲师沉积学和遗迹学 E-mail: wangchangzheng@hpu.edu.cn

English Abstract

Ichnofossils and Sedimentary Environments of the Upper Cretaceous Qiupa Formation in Tantou Basin of Western Henan

1. Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454000;

2. Key Laboratory of Biogenic Traces and Sedimentaty Minerals of Henan Province, Jiaozuo, Henan 454000

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豫西潭头盆地上白垩统秋扒组遗迹化石与沉积环境

作者简介: 王长征 男 1979年生 博士研究生 讲师 沉积学和遗迹学 E-mail: wangchangzheng@hpu.edu.cn

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Ichnofossils and Sedimentary Environments of the Upper Cretaceous Qiupa Formation in Tantou Basin of Western Henan

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出版历程

目录

豫西潭头盆地上白垩统秋扒组遗迹化石与沉积环境

1. 河南理工大学资源环境学院 河南焦作 454000; 2. 河南省生物遗迹与成矿过程重点实验室 河南焦作 454000

作者简介: 王长征 男 1979年生 博士研究生 讲师 沉积学和遗迹学 E-mail: wangchangzheng@hpu.edu.cn

English Abstract

Ichnofossils and Sedimentary Environments of the Upper Cretaceous Qiupa Formation in Tantou Basin of Western Henan

1. Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454000; 2. Key Laboratory of Biogenic Traces and Sedimentaty Minerals of Henan Province, Jiaozuo, Henan 454000

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
王长征男 1979年生博士研究生讲师沉积学和遗迹学 E-mail: wangchangzheng@hpu.edu.cn

1. 河南理工大学资源环境学院河南焦作 454000;

2. 河南省生物遗迹与成矿过程重点实验室河南焦作 454000

作者简介:
王长征男 1979年生博士研究生讲师沉积学和遗迹学 E-mail: wangchangzheng@hpu.edu.cn

1. Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454000;

2. Key Laboratory of Biogenic Traces and Sedimentaty Minerals of Henan Province, Jiaozuo, Henan 454000