The Tectonics of the Continental Barents Sea Shelf (Russia): The Formation Stages of the Basement and Sedimentary Cover

IF 1 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Geotectonics Pub Date : 2024-03-14 DOI:10.1134/s0016852123060043
O. V. Grushevskaya, A. V. Soloviev, E. A. Vasilyeva, E. P. Petrushina, I. V. Aksenov, A. R. Yusupova, S. V. Shimanskiy, I. N. Peshkova
{"title":"The Tectonics of the Continental Barents Sea Shelf (Russia): The Formation Stages of the Basement and Sedimentary Cover","authors":"O. V. Grushevskaya, A. V. Soloviev, E. A. Vasilyeva, E. P. Petrushina, I. V. Aksenov, A. R. Yusupova, S. V. Shimanskiy, I. N. Peshkova","doi":"10.1134/s0016852123060043","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Based on the results of field complex geophysical studies in the northwestern part of the Russian sector of the Barents Sea shelf, as well as on the processing and comprehensive interpretation of new and retrospective geophysical materials in the volume of 25 500 linear kilometers and deep well drilling data in the section of the Barents Sea sedimentary cover, regional tectonostratigraphic units were identified between reflecting horizons (RH): (i) a Paleozoic complex (between RH VI(PR?) and RH I<sub>2</sub>(P‒T)); (ii) a Triassic complex (between RH I<sub>2</sub>(P‒T) and RH B(T‒J)); (iii) a Jurassic complex (between RH B(T‒J) and RH C′(J<sub>3</sub>‒K<sub>1</sub>)); and (iv) a Cretaceous‒Cenozoic complex (between RH V′(J<sub>3</sub>‒K<sub>1</sub>) and the Barents Sea floor). According to the structural analysis results, three structural floors were established: the lower structural level, which includes Riphean terrigenous-effusive deposits and Lower Paleozoic‒Lower Permian terrigenous-carbonate deposits; the middle structural level is formed mainly by Upper Devonian‒Lower Permian carbonate deposits; the upper structural level combines Lower and Upper Permian terrigenous deposits and Mesozoic–Cenozoic deposits. This article presents a new tectonic model of the Barents Sea region, including elements of all structural levels with sublevels. In accordance with the tectonic zoning, paleostructural and paleotectonic analyses, the article outlines the main stages of the Barents Sea shelf development: stage of the Late Proterozoic compression and Early–Middle Paleozoic continental rifting (I), a Late Paleozoic stabilization stage (II), an Early Mesozoic tectonogenesis stage (III), a Middle Mesozoic thermal subsidence stage (IV), a Late Jurassic stabilization stage (V), a Cretaceous subsidence stage (VI), and the final stage as a Cenozoic uplift of a large part of the Barents Sea shelf (VII). In the northwestern part of the Russian sector of the Barents Sea shelf, synchronous subsidence of the sedimentary cover basement took place, associated with spreading and formation of the Arctic Ocean.</p>","PeriodicalId":55097,"journal":{"name":"Geotectonics","volume":"22 1","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geotectonics","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1134/s0016852123060043","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 0

Abstract

Based on the results of field complex geophysical studies in the northwestern part of the Russian sector of the Barents Sea shelf, as well as on the processing and comprehensive interpretation of new and retrospective geophysical materials in the volume of 25 500 linear kilometers and deep well drilling data in the section of the Barents Sea sedimentary cover, regional tectonostratigraphic units were identified between reflecting horizons (RH): (i) a Paleozoic complex (between RH VI(PR?) and RH I2(P‒T)); (ii) a Triassic complex (between RH I2(P‒T) and RH B(T‒J)); (iii) a Jurassic complex (between RH B(T‒J) and RH C′(J3‒K1)); and (iv) a Cretaceous‒Cenozoic complex (between RH V′(J3‒K1) and the Barents Sea floor). According to the structural analysis results, three structural floors were established: the lower structural level, which includes Riphean terrigenous-effusive deposits and Lower Paleozoic‒Lower Permian terrigenous-carbonate deposits; the middle structural level is formed mainly by Upper Devonian‒Lower Permian carbonate deposits; the upper structural level combines Lower and Upper Permian terrigenous deposits and Mesozoic–Cenozoic deposits. This article presents a new tectonic model of the Barents Sea region, including elements of all structural levels with sublevels. In accordance with the tectonic zoning, paleostructural and paleotectonic analyses, the article outlines the main stages of the Barents Sea shelf development: stage of the Late Proterozoic compression and Early–Middle Paleozoic continental rifting (I), a Late Paleozoic stabilization stage (II), an Early Mesozoic tectonogenesis stage (III), a Middle Mesozoic thermal subsidence stage (IV), a Late Jurassic stabilization stage (V), a Cretaceous subsidence stage (VI), and the final stage as a Cenozoic uplift of a large part of the Barents Sea shelf (VII). In the northwestern part of the Russian sector of the Barents Sea shelf, synchronous subsidence of the sedimentary cover basement took place, associated with spreading and formation of the Arctic Ocean.

Abstract Image

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
巴伦支海大陆架构造(俄罗斯):基底和沉积覆盖层的形成阶段
摘要 根据在巴伦支海大陆架俄罗斯区西北部进行的野外综合地球物理研究的结果,以及对巴伦支海沉积覆盖区段 25 500 延公里的新的和回顾性地球物理资料和深井钻探数据的处理和综合解释,在反射地层(RH)之间确定了区域构造地层单元:(i) 古生代复合体(RH VI(PR?和 RH I2(P-T)之间);(ii) 三叠纪复合层(RH I2(P-T)和 RH B(T-J)之间);(iii) 侏罗纪复合层(RH B(T-J)和 RH C′(J3-K1)之间);(iv) 白垩纪-新生代复合层(RH V′(J3-K1)和巴伦支海海底之间)。根据构造分析结果,确定了三个构造层:下部构造层,包括里皮安世陆相-喷出沉积和下古生界-下二叠统陆相-碳酸盐沉积;中部构造层主要由上泥盆世-下二叠统碳酸盐沉积形成;上部构造层由下二叠统、上二叠统陆相沉积和中生代-新生代沉积组合而成。本文提出了一个新的巴伦支海地区构造模型,包括所有构造层级的要素和子层。根据构造分区、古构造和古构造分析,文章概述了巴伦支海大陆架发展的主要阶段:晚新生代压缩和早-中古生代大陆裂陷阶段(I)、晚古生代稳定阶段(II)、早中生代构造形成阶段(III)、中中生代热沉降阶段(IV)、晚侏罗世稳定阶段(V)、白垩纪沉降阶段(VI),以及巴伦支海大陆架大部分地区新生代隆起的最后阶段(VII)。在巴伦支海大陆架的俄罗斯西北部,沉积覆盖基底同步下沉,与北冰洋的扩张和形成有关。
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
Geotectonics
Geotectonics 地学-地球化学与地球物理
CiteScore
1.90
自引率
9.10%
发文量
28
审稿时长
3 months
期刊介绍: Geotectonics publishes articles on general and regional tectonics, structural geology, geodynamics, and experimental tectonics and considers the relation of tectonics to the deep structure of the earth, magmatism, metamorphism, and mineral resources.
期刊最新文献
The Tectonic Inversion Prediction in Fold-and-Thrust Belts by Using Numerical Modeling Theoretical and Experimental Modeling of Geodynamiс Processes in the Slopes of Uplifts Tectonic Basis for Oil and Gas Potential in the North Kara Prospective Oil and Gas Region (Western Arctic, Russia) Active Faults of Northern Central Mongolia, Their Correlation with Neotectonics and Deep Structure of the Region Pre-Existing Structures and Stress Evolution Controlling a Pull-Apart Basin in the Tunisian Atlas Domain (Siliana Area): Geodynamic Implication
×
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