埃及Kharga绿洲地区Dakhla组和Esna组古新世似锦岩的赋存特征

M.S. Mahmoud, A.M. Omran
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引用次数: 1

摘要

埃及哈尔加绿洲东北部两个剖面的最上层Dakhla组演为和最下层Esna组岩石中几乎没有古新世孢粉岩。已鉴定的花粉形态主要以小尺寸被子植物花粉为主。有孔虫试验衬里丰富。光滑的陆生孢子和海生鞭毛囊是罕见的,后者总是扭曲的,不容易识别。裸子植物的花粉从未被观察到。由于形态学较差且多样性较低,研究剖面的年代由以前的有孔虫研究控制。然而,这种孢粉植物组合证实了已知的开放海相沉积环境。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the occurrence of some Paleocene palynomorphs from the Dakhla and Esna formations, Kharga Oasis area, Egypt

Paleocene palynomorphs are hardly extracted from the uppermost Dakhla Formation succession and the lowest Esna Formation rocks in two surface sections, northeast Kharga Oasis, Egypt. The identified palynomorphs are mainly dominated by small-sized angiosperm pollen. Foraminiferal test linings are abundant. Smooth land-derived spores and marine dinoflagellate cysts are rare, the latter are always distorted and not easy to identify. Gymnosperm pollen are never observed. Due to poor and less diverse palynomorphs, the dating of the studied section is controlled by previous foraminiferal studies. However, such palynofloral assemblage confirms the already known open marine depositional environment.

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