Abstract The Campanian-Maastrictian black shales in Egypt comprise a significant part of the worldwide belt of organic-rich shales. These dark-colored shales stretch from the Dakhla in the Western Desert to Safaga area in the east along the Red Sea and are well known in the Middle East and North Africa. A palynological study of these shales hosted mostly in the Duwi and Dakhla formations yields a Campanian to Maastrichtian age. The extracted palynomorph assemblage from the Abu Tartur and Quseir boreholes, which is dominated by dinoflagellate cysts (dinocysts) representing a well-preserved peridinioid association (>90% of the total dinocysts), is indicative of marine origin and very high paleoproductivity. The common dinocysts are Andalusiella mauthei, Andalusiella gabonensis, Cerodinium diebelii, Senegalinium bicavatum, Senegalinium laevigatum, Palaeocystodinium golzowense and Palaeocystodinium australinum. This assemblage is comparable with the dinoflagellate cyst records of the Campanian-Maastrichtian low latitude strata in northwest Africa (Morocco and Tunisia) and southern Europe. The dinocyst distribution in the Abu Tartur and Quseir borehole sections suggests an isochronous signature during the early Maastrichtian age.

中文翻译：

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来自埃及 Duwi 和 Dakhla 地层富含有机质页岩岩心的peridiniacean 甲藻囊肿的分布

摘要 埃及的坎帕阶-马斯特里阶黑色页岩是全球富含有机质页岩带的重要组成部分。这些深色页岩从西部沙漠的达赫拉沿红海一直延伸到东部的萨法加地区，在中东和北非地区广为人知。对这些主要位于 Duwi 和 Dakhla 地层中的页岩进行孢粉学研究，得出坎帕阶至马斯特里赫特时代。从 Abu Tartur 和 Quseir 钻孔中提取的孢粉体组合，主要是甲藻囊肿（甲藻），代表了保存完好的类甲藻组合（> 90% 的甲藻），表明海洋起源和非常高的古生产力。常见的双胞菌有毛泰安达卢西亚菌、加蓬安达卢西亚菌、迪贝利角马尾藻、双腔塞内加林、塞内加林 laevigatum、Senegalinium laevigatum、Cerodinium diebelii、Senegalinium bicavatum、Senegalinium laevigatum、Cerodinium diebelii、Senegalinium bicavatum、Palaeocystodinium golzowense 和 Palaeocystodinium australinum。这种组合与非洲西北部（摩洛哥和突尼斯）和欧洲南部的坎帕尼亚-马斯特里赫特低纬度地层的甲藻囊肿记录相当。Abu Tartur 和 Quseir 钻孔剖面的双囊分布表明马斯特里赫特时代早期的等时特征。