Stratigraphic correlation of the Givetian (late Middle Devonian) deposits in Qujing,Yunnan, southwestern China and the paleogeographic implications

IF 1.3 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Turkish Journal of Earth Sciences Pub Date : 2022-01-01 DOI:10.55730/1300-0985.1773
Jianhua Wang, Yunchuan Mi, X. Ma, Yukun Bi
{"title":"Stratigraphic correlation of the Givetian (late Middle Devonian) deposits in Qujing,Yunnan, southwestern China and the paleogeographic implications","authors":"Jianhua Wang, Yunchuan Mi, X. Ma, Yukun Bi","doi":"10.55730/1300-0985.1773","DOIUrl":null,"url":null,"abstract":": Detailed description of spatio-temporal framework of fossil-bearing strata is of fundamental significance for understanding the evolution of organisms and regional tectonics. The Qujing and Haikou formations are two lithological units exposed in eastern Yunnan, southwestern China, and both bear rich fossils indicative of a Middle Devonian age, while their relationship or lateral correlation remains unclear. Based on detailed observations of outcrops of these two formations in Qujing, eastern Yunnan, and as well as their typical rock characteristics and fossil contents, we propose that the two formations are basically contemporaneous heterotopic facies. From north to south of the Qujing area, the transition from the Haikou Formation to the Qujing Formation is gradual and shows an increase of carbonate component (in terms of the cumulative thickness of carbonate rocks) and as offset, a decrease of the siliciclastic component. The distribution of the Haikou/Qujing Formation indicates the development of a marine environment in the Qujing area during the Givetian, as a part of the South China Sea connected to the Paleo-Tethys Ocean","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Turkish Journal of Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.55730/1300-0985.1773","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

: Detailed description of spatio-temporal framework of fossil-bearing strata is of fundamental significance for understanding the evolution of organisms and regional tectonics. The Qujing and Haikou formations are two lithological units exposed in eastern Yunnan, southwestern China, and both bear rich fossils indicative of a Middle Devonian age, while their relationship or lateral correlation remains unclear. Based on detailed observations of outcrops of these two formations in Qujing, eastern Yunnan, and as well as their typical rock characteristics and fossil contents, we propose that the two formations are basically contemporaneous heterotopic facies. From north to south of the Qujing area, the transition from the Haikou Formation to the Qujing Formation is gradual and shows an increase of carbonate component (in terms of the cumulative thickness of carbonate rocks) and as offset, a decrease of the siliciclastic component. The distribution of the Haikou/Qujing Formation indicates the development of a marine environment in the Qujing area during the Givetian, as a part of the South China Sea connected to the Paleo-Tethys Ocean
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
云南曲靖中泥盆世晚期给田沉积地层对比及其古地理意义
详细描述含化石地层的时空格局对认识生物演化和区域构造具有重要意义。曲靖组和海口组是云南东部暴露的两个岩性单元,均具有丰富的中泥盆世化石,但它们之间的相互关系或横向对比尚不清楚。通过对滇东曲靖两组露头的详细观察,结合其典型岩石特征和化石含量,认为两组基本为同生异位相。从曲靖地区北至南,海口组向曲靖组的过渡是渐进的,碳酸盐组分(以碳酸盐岩累积厚度计)增加,而相抵消的是硅屑组分减少。海口组/曲靖组的分布表明,曲靖地区在Givetian时期的海洋环境发育,是与古特提斯洋相连的南海的一部分
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Turkish Journal of Earth Sciences
Turkish Journal of Earth Sciences 地学-地球科学综合
CiteScore
2.40
自引率
10.00%
发文量
6
审稿时长
6 months
期刊介绍: The Turkish Journal of Earth Sciences is published electronically 6 times a year by the Scientific and Technological Research Council of Turkey (TÜBİTAK). It is an international English-language journal for the publication of significant original recent research in a wide spectrum of topics in the earth sciences, such as geology, structural geology, tectonics, sedimentology, geochemistry, geochronology, paleontology, igneous and metamorphic petrology, mineralogy, biostratigraphy, geophysics, geomorphology, paleoecology and oceanography, and mineral deposits. Contribution is open to researchers of all nationalities.
期刊最新文献
Soil liquefaction and subsidence disaster in İskenderun related to the 6 February 2023 Pazarcık (Mw: 7.7) and 20 February Defne (Mw: 6.4) earthquakes, Türkiye Investigation of earthquake sequence and stress transfer in the Eastern Anatolia Fault Zone by Coulomb stress analysis Surface rupture during the 6th of February 2023 Mw 7.6 Elbistan-Ekinözü (Kahramanmaraş) earthquake: implications for fault rupture dynamics along the northern branch of East Anatolian Fault Zone Tepehan Rockslide: A large-scale earthquake-induced geological structure formed by Mw:7.8 Kahramanmaraş (Pazarcık) earthquake, Türkiye Preliminary results of the great Kahramanmaraş 6 February 2023 Earthquakes (MW 7.7 and 7.6) and 20 February 2023 Antakya Earthquake (MW 6.4), Eastern Türkiye
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1