Dokhan Gr
Period:
Neoproterozoic
Age Interval:
Ediacaran, Eg2
Province:
Egypt general
Lithology and Thickness
Volcanics. Volcanics, mainly andesites. Porphyrites including the Purple Imperial Porphyry. Type section thickness of 1200m.
Lithology Pattern:
Volcanics
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Shaitian Granites Gr
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Hammamat Gr
Regional extent
GeoJSON
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Fossils
Age
Ediacaran. "formation age of the volcanic and subvolcanic rocks ranging between 592 ± 5 Ma and 618 ± 4 Ma" -- from "Neoproterozoic SHRIMP U-Pb zircon ages of Dokhan volcanics in the northern part of the eastern desert, Egypt by Christoph Breitkreuz, TU Bergakademie Freiberg (Germany) et al. at IGC Oslo, Aug 2012 (http://www.cprm.gov.br/33IGC/1338330.html)
Age Span:
Beginning stage:
Ediacaran
Fraction up in beginning stage:
0.15
Beginning date (Ma):
620.57
Ending stage:
Ediacaran
Fraction up in the ending stage:
0.45
Ending date (Ma):
591.71
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Said, R. The Geology of Egypt, 1962 pg. 19-20, 138.