Fincha Fm
Period:
Permian, Triassic
Age Interval:
Asselian – Norian
Province:
Sudan E
Type Locality and Naming
Blue Nile Basin, Southeast Sudan and Northwest Ethiopia
Reference: Jain and Singh, 2019; Jain et al., 2022
[Fig. 1: General stratigraphy of the Blue Nile basin, with major lithological characteristics and age assignment (from Jain and Singh, 2019).]
Lithology and Thickness
400m of sandstone and shale with beds of conglomerates and siltstone (Jain and Singh, 2019).
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Basement Complex
Upper contact
Unconformably overlain by the Adigrat Fm [Rhaetian through Sinemurian is a hiatus.]
Regional extent
Blue Nile Basin, Southeast Sudan and Northwest Ethiopia
GeoJSON
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Fossils
Age
Asselian-Sakmarian to Carnian-Norian (Jain and Singh, 2019)
Age Span:
Beginning stage:
Asselian
Fraction up in beginning stage:
0.00
Beginning date (Ma):
298.89
Ending stage:
Norian
Fraction up in the ending stage:
1.0
Ending date (Ma):
205.74
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Enam O. Obiosio, Solomon Joshua Avong and Henry Nasir Suleiman (2024) - Stratigraphic Lexicon compiled from the following publications:Jain S., Singh A. (2019): First calcareous nannofossil record from the Jurassic strata exposed in the Blue Nile Basin (Ethiopia). Jour. African Earth Sci. 158: 103553.
Jain, S., Mullugetta, M., Benzaggagh, M., Salamon, M. A., & Schmerold, R. (2022). Discovery of chitinoidellids and calpionellids from the Blue Nile Basin and the Jurassic‐Cretaceous boundary in Ethiopia. Cretaceous Research, 132, 105112. https://doi.org/10.1016/j.cretres.2021.105112.