The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa (1903) (14587904637)

Identifier: tanganyikaproble00moo (find matches)
Title: The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa
Year: 1903 (1900s)
Authors: Moore, John Edward S
Subjects: Zoology Marine animals Freshwater animals
Publisher: London, Hurst and Blackett, limited
Contributing Library: Smithsonian Institution Libraries
Digitizing Sponsor: Biodiversity Heritage Library



Text Appearing Before Image:
Mfunbiro Mountains, Kilima-Njaro, Kenia, andinnumerable smaller volcanoes, some active, some extinct,but always in their position more or less closely doggingthe course of the Great African Range. The processes ofelevation which find their maximum expression in the Alpsand the Pyrenees have affected wide areas, especially tothe north of these heights, and so also in Africa we find thatthe great tendency towards elevation along an axis runningnorth and south through the continent has, in the sameway, afiected to a less degree an enormous area of theearths surface east and west of the range. This isevidenced by the rising of the coast line which can be seento have occurred at innunierable places, both on the east andthe west of the continent. It is very apparent for exampleat Mombasa, Zanzibar, Bagamoyo, Delagoa Bay, Shupanga,and near the eastern slopes of Mount Morambala, at all ofwhich points there are to be found marine dejxDsits ofdifferent ages now elevated above the sea level; and
Text Appearing After Image:
~ ^ THE TANGANYIKA PRO BLEAT. 39 though the upthrust has been far greater along the GreatCentral Range in the interior of the continent, it is obviousthat these same earth movements have affected in a lessdegree an area which is at any rate as wide as thecontinent itself. We are, in fact, here in Africa encounter-ing again phenomena similar to those noticed by Darwinas havinP Pfone forward in the gradual elevation of thatpart of the earths surface which finds its maximum ofexpression along the crests of the Southern Andes. Theeffect of crinkling such as this, greatest along an axial linerunning approximately north and south in Africa, andbecoming less and less as we pass from this longitudinalaxis, east and west, would if it had gone on evenly anduninterruptedly have tended to raise the continent into agreat hogs back ; and south of the equator, this is as amatter of fact the form which it actually possesses,the earths surface has been bent up into a greatarch ; but as we become bette