Lithology and Sedimentation Conditions of the Latest Cretaceous in the Klementyev Mountain Section (Eastern Crimea)

IF 0.7 4区 地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS Lithology and Mineral Resources Pub Date : 2024-07-13 DOI:10.1134/S0024490224700573
D. M. Korshunov, P. A. Proshina, I. P. Ryabov, B. G. Pokrovsky, V. A. Musatov
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Abstract

A comprehensive study of the Maastrichtian–Danian boundary rocks in the Klementyev Mountain section (eastern Crimea) was carried out. The lithological characteristics of carbonate, carbonate–clayey, and clastic rocks are scrutinized. The dynamic of changes in the benthic and planktonic foraminiferal assemblages is analyzed. The geochemical and isotopic data were obtained for this section for the first time. The stratigraphic range of the upper Maastrichtian and lower Danian has been specified. The late Campanian–early Maastrichtian age of the underlying rocks has been confirmed for the first time. Sediments of the Klementyev Formation were deposited in a deep-sea pelagic paleoenvironment on the submerged part of the outer shelf, whereas the overlying Lower Danian sediments were deposited in shallow waters of the inner shelf with terrigenous sedimentation and high hydrodynamic activity.

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克莱门特耶夫山地段(东克里米亚)最新白垩纪的岩性和沉积条件
摘要 对克莱门特耶夫山地段(克里米亚东部)的马斯特里赫特-达尼安边界岩石进行了全面研究。仔细研究了碳酸盐岩、碳酸盐-粘土岩和碎屑岩的岩性特征。分析了底栖和浮游有孔虫组合的动态变化。首次获得了该剖面的地球化学和同位素数据。明确了上元古界和下元古界的地层范围。首次确认了下层岩石的坎盘纪晚期-马斯特里赫特纪早期年龄。克莱门特耶夫地层的沉积物沉积在外陆架水下部分的深海浮游古环境中,而上覆的下丹江沉积物则沉积在内陆架的浅水中,其中有陆相沉积和高度的水动力活动。
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来源期刊
Lithology and Mineral Resources
Lithology and Mineral Resources 地学-地球化学与地球物理
CiteScore
1.30
自引率
37.50%
发文量
29
审稿时长
>12 weeks
期刊介绍: Lithology and Mineral Resources is an international peer reviewed journal that publishes articles on a wide range of problems related to the formation of sedimentary rocks and ores. Special attention is given to comparison of ancient sedimentary rock and ore formation with present-day processes. The major part of the journal is devoted to comparative analysis of sedimentary processes on the continents and in oceans, as well as the genetic aspects of the formation of sedimentary and hydrothermal–sedimentary mineral resources. The journal welcomes manuscripts from all countries in the English or Russian language.
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