Podcast
Questions and Answers
Which formation represents the peak of the Jurassic marine transgression in the Northern Western Desert?
Which formation represents the peak of the Jurassic marine transgression in the Northern Western Desert?
- Ras Qattara Formation
- Masajid Formation (correct)
- Khatatba Formation
- Alam El Bueib Formation
Which unit unconformably overlies the lower unit with abundant shale beds in the Paleozoic section?
Which unit unconformably overlies the lower unit with abundant shale beds in the Paleozoic section?
- Early Cretaceous shallow-marine clastics of the Alam El Bueib Formation
- Lower Jurassic non-marine clastics of the Ras Qattara Formation
- Middle Jurassic Khatatba Formation
- Late Carboniferous to Early Permian sandstone unit (correct)
What is the approximate thickness of the Paleozoic section in the Siwa area of the Western Desert?
What is the approximate thickness of the Paleozoic section in the Siwa area of the Western Desert?
- 8,000 ft (about 2,440 m) (correct)
- 10,000 ft (about 3,048 m)
- 6,000 ft (about 1,828 m)
- 5,000 ft (about 1,524 m)
During which cycle was a marine shale unit followed by a succession of massive fluvial sand bodies deposited in the Early Cretaceous?
During which cycle was a marine shale unit followed by a succession of massive fluvial sand bodies deposited in the Early Cretaceous?
During which period was a lower unit with abundant shale beds dated as Middle Cambrian intersected in the Bahariya-1 exploratory well?
During which period was a lower unit with abundant shale beds dated as Middle Cambrian intersected in the Bahariya-1 exploratory well?
Study Notes
Jurassic Marine Transgression
- The peak of the Jurassic marine transgression in the Northern Western Desert is represented by the Khatatba Formation.
Paleozoic Section and Unconformity
- A higher unit that unconformably overlies the lower unit with abundant shale beds in the Paleozoic section is the Dakhla Formation.
Thickness of Paleozoic Section
- The approximate thickness of the Paleozoic section in the Siwa area of the Western Desert is about 1,800 meters.
Early Cretaceous Deposits
- A marine shale unit followed by massive fluvial sand bodies was deposited during the Early Cretaceous cycle known as the Albian cycle.
Cambrian Shale Units
- A lower unit with abundant shale beds, dated as Middle Cambrian, was intersected in the Bahariya-1 exploratory well during the drilling operations.
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Description
Test your knowledge of the geology of Egypt's Western Desert, including topics such as oil and gas fields, petroleum systems, tectonic features, and lithostratigraphy.
