Review of and Contribution to the Stratigraphy of the Cenozoic Igneous Rocks in the Republic of Yemen PDF

Keywords

Stratigraphy, Cenozoic, Igneous rocks, Yemen

Abstract

In Yemen the Cenozoic igneous rocks consist of intrusive and extrusive rocks with interlayered sediments, all of which are included within the Manakhah Group (latest Cretaceous-Holocene). This group is subdivided into the Haraz Formation which includes the latest Cretaceous-Tertiary volcanics and the interlayered sediments, the Aden Formation which includes the Late Tertiary-Holocene volcanics, and the Bura' Formation which includes the Tertiary alkaline granites. The Manakhah Group, Haraz and Bura' Formations are introduced here as new units. The Haraz Formation replaces the informal names: Trap Series, Yemen Volcanics, and Aden Trap Series. The Aden Formation is a readaptation of the term Aden Volcanic Series. A stratotype for the Aden Formation is designated in the Shuqra-Ahwar area.