منابع مشابه
Lake Afrera, a structural depression in the Northern Afar Rift (Red Sea)
The boundary between the African and Arabian plates in the Southern Red Sea region is displaced inland in the northern Afar rift, where it is marked by the Red Sea-parallel Erta Ale, Alaita, and Tat Ali volcanic ridges. The Erta Ale is offset by about 20 and 40 km from the two en echelon ridges to the south. The offset area is highly seismic and marked by a depression filled by lake Afrera, a s...
متن کاملThe Red Sea: Birth of an Ocean
Nowhere on the present-day Earth can the transition from a continental to an oceanic rift be observed and studied better than in the Red Sea region, where three rifts in different stages of evolution meet in a triple point located in the Afar region. A thermal and/or compositional mantle plume may have risen from the upper mantle below Afar already at *30 Ma, and may have triggered, at least in...
متن کامل23. Sedimentary History of the Red Sea
Numerous studies have been made of Recent Red Sea sediments concerning their paleontology, mineralogy, or geochemistry. In addition, over 50 reports have been published on the sedimentary environment of the hot brine area (21°N) in the central axial valley (see Degens and Ross, 1969, and contained references; Backer and Schoell, 1972). These studies generally indicate considerable climatic fluc...
متن کامل21. Geologic Background of the Red Sea
New concepts related to the mobility of the earth's crust have focused attention on the Red Sea area. Anyone familiar with the geographic outline of western Arabia and northeast Africa is struck by the apparent jig-saw fit that appears possible in closing the Red Sea. Indeed, the modern paradigm of plate tectonics would have the Arabian Peninsula drifting away from the African continent. Consid...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1969
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800051748