Abstract

The results of sedimentological, palynological, and paleomagnetic studies of the Upper Cretaceous Alan-Kyr section (Central Crimea) are presented. The rock nomenclature is characterized and a deep-water genesis is determined. Based on the palynological data, the sediments are estimated as Lower Campanian and, partially, Upper Campanian (under two-part subdivision of the stage); palynomorphs are not found in the lower and upper parts of the section. A reverse polarity magnetozone distinguished in the lower part of the section is a probable analog of the C33r magnetic chron, whose base, according to the recommendations of Wolfring et al. (2018), should be used as a primary attribute to determine the lower boundary of the Campanian stage in the section. The obtained age data demonstrate significant differences relative to the dates inferred earlier from microfaunal data (Bragina et al., 2016).

中文翻译：

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白垩纪上部艾伦-基尔断层（中克里米亚）的新沉积学，磁地层学和孢粉学数据

摘要

提出了上白垩统艾伦-基尔断层（中克里米亚）的沉积学，孢粉学和古磁学研究的结果。表征岩石的名称并确定深水成因。根据古生物学数据，沉积物估计为下坎帕尼阶，部分为上坎帕尼阶（在该阶段分为两部分）；在该部分的上部和下部未发现古怪物。根据该部分的下部，一个反极性的磁区可能是C33r时钟的一个类似物，根据Wolfring等人的建议，它的基础是C33r。（2018），应作为主要属性来确定该部分中坎帕尼亚阶的下边界。