الفهرس 
lithostra tigraphyOnly 14 pages are availabe for public view
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Abstract
The um bogma formation is located to the east of abu zeneima town on the east coast of the gulf of suez, southwest of sinai penensula. these formation is located between longetitude 33 15` 33 E and latitude 28 57 - 29 05 N convering an area of about 700 km2.