Quaternary Deposits of the Pritaymyr Islands (the Kara Shelf)

IF 1.2 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Russian Geology and Geophysics Pub Date : 2023-03-24 DOI:10.2113/rgg20224510

E. Gusev, Ya.D. Yarzhembovsky, A. Makariev, A. Molodkov, F. Maksimov, N. V. Kupriyanova, N. A. Kostromina, O. Rudenko, A. Krylov, V. Sharin, A. Sharapova

引用次数: 0

Abstract

—The rarely visited islands of the Kara Sea in its Prytaimyr zone have been studied during a geological survey on the scale 1:1,000,000. The Quaternary deposits of the islands are represented by the Middle Paleo-Pleistocene to Holocene marine, lacustrine-marsh, alluvial and slope sediments. New radiocarbon and uranium-thorium dating has been obtained for the Quaternary sediments, using organic remains (wood, peat, mollusk shells). For the first time, dating on sandy sediments was obtained for the islands, using the method of infrared optically stimulated luminescence (IR-OSL). The sediments of marine terraces are of the greatest distribution on the islands; these sediments can be correlated with the Karginsky (MIS 3) horizon, lacustrine-marsh sediments and deposits of the cover complex, containing flora remains, mainly the Holocene.

查看原文本刊更多论文

普里塔米尔群岛第四纪沉积物（卡拉大陆架）

-在一项规模为1:10万的地质调查中，研究了喀拉海Prytaimyr地区很少有人参观的岛屿。岛上的第四纪沉积以中古更新世至全新世海相、湖沼沉积、冲积沉积和斜坡沉积为代表。利用有机残留物(木材、泥炭、软体动物壳)对第四纪沉积物进行了新的放射性碳和铀钍定年。首次利用红外光激发发光(IR-OSL)方法对沙质沉积物进行了测年。海相阶地沉积物在岛屿上分布最广;这些沉积物可以与Karginsky (MIS 3)层位、湖沼沉积物和覆盖复合体沉积物相对应，其中包含植物遗迹，主要是全新世。

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分钟内获得全文求助全文

来源期刊

Russian Geology and Geophysics 地学-地球科学综合

CiteScore

2.00

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal publishes original reports of theoretical and methodological nature in the fields of geology, geophysics, and geochemistry, which contain data on composition and structure of the Earth''s crust and mantle, describes processes of formation and general regularities of commercial mineral occurrences, investigations on development and application of geological-geophysical methods for their revealing. As to works of regional nature, accelerated publication are available for original papers on a variety of problems of comparative geology taking into account specific character of Siberia, adjacent Asian countries and water areas. The journal will also publish reviews, critical articles, chronicle of the most important scientific events, and advertisements.