Analysis of information sources in references of the Wikipedia article "대지구대" in Korean language version.
동아프리카 열곡대는 아라비아반도와 아프리카 북동부의 경계에서 부채꼴 형태로 남쪽으로 뻗은 대단층 함몰지구대이다. 아프리카 판 내부에 발달한 열곡대의 폭은 35~60 km이며 연장은 약 4,000km로 알려져 있다.
이 열곡대는 제3기초 올리고세(30∼35 Ma)부터 북쪽에서부터 형성되기 시작하여 현재까지 남쪽으로 진행하고 있는 대륙 내부에서 현생 지구조 확장운동이 일어나고 있는 지질학적으로 매우 흥미로운 지역이다... 열곡대는 에티오피아에서 남서쪽으로 발달하다 에티오피아 남부에서 동, 서 및 남서 열곡 분기대로 나누어진다...북쪽 홍해와 아덴만에서는 현재까지 확장 운동에 의해 새로운 해양지각이 생성되고 있다.
The EARS is a lithospheric opening in the African continent, which in terms of plate tectonics results from the divergence of large, regional-scale blocks.
The activity is demonstrated in terms of faulting and volcanism where significant and damaging earthquakes have been recorded and reported from time to time. Previous studies showed that the East African Rift System exhibits significantly high seismic activity (Kebede and Kulhánek, 1991; Macheyeki et al., 2008) and suggested the correlation of earthquakes occurrence with the geologic features
Cenozoic volcanism in the EARS is widespread in the north—especially eastern branch, but sparse in the south...Abundant volcanism in Northeast Africa is related to plume occurrence.
The EAR is composed of a series of fault-bounded basins and volcanic centers stretching through East Africa in a roughly NS direction, with seismicity, active faulting, and volcanism generally localized along narrow belts separating largely aseismic domains.
The EAR is composed of a series of fault-bounded basins and volcanic centers stretching through East Africa in a roughly NS direction, with seismicity, active faulting, and volcanism generally localized along narrow belts separating largely aseismic domains.
