基于古近系物复合的挪威海中晚第四纪地层和沉积古环境

IF 0.7 4区 地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY Doklady Earth Sciences Pub Date : 2024-09-16 DOI:10.1134/s1028334x24602876
E. A. Novichkova, L. L. Demina, D. P. Starodymova, A. G. Matul, M. D. Kravchishina, M. P. Chekhovskaia, N. S. Oskina, L. A. Lozinskaia, S. V. Slomnyuk, A. S. Solomatina, K. S. Iakimova
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引用次数: 0

摘要

摘要 采用沉积学、地球化学和微古生物学等综合方法,对挪威海中部至北部水下横断面的五个新沉积岩心进行了研究和比较。对冰蚀碎屑、极地/次极地有孔虫、碳酸钙、有机碳和连续地球化学扫描记录的分布进行综合分析后发现,在过去的 26 万年中,第四纪中晚期冰川和间冰期交替出现。与晚更新世(MIS 2-4)相比,在中更新世晚期冰川期(MIS 6、8),土著物质的供应对区域沉积的影响要大得多。图中显示了当地(挪威海中部和北部之间)冰川期和冰期间沉积的差异。
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The Middle to Late Quaternary Stratigraphy and Sedimentation Paleoenvironment in the Norwegian Sea Based on Complex of Paleoproxies

Abstract

A complex of sedimentological, geochemical, and micropaleontological methods was used to study and compare five new sediment cores along a submeridional transect from the middle to the north of the Norwegian Sea. A combined analysis of the distribution of ice-rafted debris, polar/subpolar foraminifera, calcium carbonate, organic carbon, and continuous geochemical scanning records revealed an alternation of Middle–Late Quaternary glacial and interglacial intervals over the last 260 000 years. In the Late Middle Pleistocene glaciation (MIS 6, 8), the supply of terrigenous material had a much greater influence on regional sedimentation than in the Late Pleistocene (MIS 2–4). Local (between the central and northern parts of the Norwegian Sea) differences in glacial and interglacial sedimentation are shown.

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来源期刊
Doklady Earth Sciences
Doklady Earth Sciences 地学-地球科学综合
CiteScore
1.40
自引率
22.20%
发文量
138
审稿时长
3-6 weeks
期刊介绍: Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
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