Tanganyika has been formed by the subsidence of a long narrow tract of country relatively to the surrounding plateaus, which fall to the lake in abrupt cliffs, some thousands of feet high in places.
In breadth, slopes in an intricate series of plateaus and terraces to the Mediterranean.
The range has not so many offshoots as occur on the west side of Lebanon; under its precipitous slopes stretch table-lands and broad plateaus, which, especially on the east side looking towards the steppe, steadily increase in width.
Mr Gardiner regarded these banks as plateaus rising to different elevations beneath the surface of the sea from a main plateau rising steeply from the great depths of the Indian Ocean.
With broad plateaus which join those of central Russia, but their orographical relations to other upheavals must be more closely studied before they can be definitely pronounced on.