| publication name | Depositional paleoenvironment and hydrocarbon source potential of the Oligocene Dabaa Formation, north Western Desert, Egypt: A palynofacies approach |
|---|---|
| Authors | El Beialy, S. Y.; Zobaa, M. K; Taha, A. A. |
| year | 2016 |
| keywords | palynofacies; paleoenvironment; source rock; Oligocene; Dabaa Formation; Egypt |
| journal | Geosphere |
| volume | 12 |
| issue | 1 |
| pages | 346-353 |
| publisher | The Geological Society of America |
| Local/International | International |
| Paper Link | http://geosphere.gsapubs.org/content/early/2015/11/25/GES01227.1.abstract |
| Full paper | download |
| Supplementary materials | Not Available |
Abstract
A detailed palynofacies study was carried out on 24 shale cutting samples from the Oligocene Dabaa Formation, which was penetrated in the Amana-1X well, Abu El Gharadig Basin, north Western Desert, Egypt. The investigation targeted primarily three main groups of palynological elements: phytoclasts, palynomorphs, and amorphous marine organic matter (AMOM), using transmitted light microscopy. Two major marine palynofacies were recognized: the oldest is palynofacies 1, made up mainly of AMOM (average abundance 47.5%), phytoclasts (31.6%), and palynomorphs (20.9%). A suboxic to anoxic outer shelf to upper slope paleoenvironment is suggested for this palynofacies. Palynofacies 2 is characterized by poorly preserved translucent phytoclasts (average abundance 61.2%) in addition to palynomorphs (24%), AMOM (14.8%), and opaques (