阿纳巴-列拿沉积盆地(西伯利亚北极拉普捷夫海岸)斜形上侏罗统地层学及沉积成因

IF 1.2 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Russian Geology and Geophysics Pub Date : 2023-11-01 DOI:10.2113/rgg20234620

V.P. Devyatov, B.L. Nikitenko

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引用次数: 0

摘要

摘要/ Abstract摘要:本文介绍了阿纳巴—勒拿盆地巴统—新科统地层和构造特征的新资料。在泰米尔山褶皱系附近，发现了上侏罗统斜状构造，与该地区东部相邻剖面相比，其厚度较大。提出Chernokhrebetnaya组为上-下牛津系-下伏拉系的电层型。编制了最完整、最连续的地层剖面，并将其岩性和年代地层对比与邻近地区的化石组合剖面进行了详细比较。为该区新的岩石地层划分提供了依据，明确了沉积相分带，提出了Khatanga-Olenek断裂带上巴统—北贝里亚地层厚度图。

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Stratigraphy and Sedimentogenesis of the Clinoform Upper Jurassic of the Anabar–Lena Sedimentary Basin (Arctic Siberia, Laptev Sea Coast)

Abstract —New materials on the stratigraphy and structural features of the Bathonian–Neocomian sections of the Anabar–Lena basin are presented. In the territory adjacent to the Taimyr mountain-folded system, a clinoform-like structure of the Upper Jurassic strata has been revealed, which are characterized by high thickness compared to adjacent sections in the east of this region. The lectostratotype of the Chernokhrebetnaya Formation (uppermost Lower Oxfordian–lowermost Volgian) is proposed. The most complete and continuous stratigraphic section is compiled, its litho- and chronostratigraphic correlations are given comparing to the sections of adjacent territories characterized in detail by fossil assamblages. The evidences for a new lithostratigraphic division of the territory are provided, facies zoning of sediments is clarified, a thickness chart of the Upper Bathonian–Boreal Berriasian strata of the Khatanga–Olenek interfluve is proposed.

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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.