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Did the Nile ever dry up?

 
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Anthony Appleyard
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PostPosted: Fri Oct 05, 2018 9:31 pm    Post subject: Did the Nile ever dry up? Reply with quote

One of the threads in this forum is called "10,000 - 7000 BC" :: 10,000 BC would be well back in the last Ice Age, when the world in general was drier as well as colder. I read somewhere that this may have led to East Africa getting so dry so widely that the Nile in Egypt dried up at times in the Ice Age. What does archaeological / geological evidence say here?
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Lutz
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PostPosted: Sun Oct 07, 2018 6:49 am    Post subject: Reply with quote

" Klimaforschung : Eisberge machen den Nil zu einem kleinen Rinnsal " (Welt.de - Rolf H. Latusseck, 30.06.2008)

Quote:
... Seit 2003 beschäftigt sich Henry Lamb von der walisischen University of Aberystwyth mit dem 2100 Quadratkilometer großen Tanasee im Nordosten Äthiopiens. Der See gilt als Quelle des Blauen Nils, und als im Nordatlantik vor 17.000 Jahren viele Eisberge schwammen, trocknete er vollständig aus. Das zumindest zeigten die ersten Bohrproben vom Seeboden. Zur Überraschung von Lamb und seinen Kollegen enthielt der Bohrkern unter den obersten Schlammschichten eine 40 Zentimeter starke Schicht braunen Torfs, die wiederum auf extrem hartem Ton auflag. ...

Quote:
... Since 2003, Henry Lamb of the Welsh University of Aberystwyth deals with the 2100 square kilometer Lake Tana in northeastern Ethiopia. The lake is considered to be the source of the Blue Nile, and when many icebergs swam in the North Atlantic 17,000 years ago, it completely dried up. At least that's what the first drill samples from the lake floor showed. To the surprise of Lamb and his colleagues, the core contained a 40-centimeter thick layer of brown peat under the top layers of mud, which in turn lay on extremely hard clay. ...

Quote:
... Auch der Viktoriasee, eine wichtige Wasserquelle des Weißen Nils, lag vor 16000 Jahren trocken, sodass der große afrikanische Fluss kaum noch floss. Seine wichtigsten Quellen waren versiegt. Vor allem weil um den Äquator viele Jahre kein Regen mehr gefallen war. ...

Quote:
... Also Lake Victoria, an important source of water for the White Nile, was dry 16,000 years ago, so that the great African river hardly flowed. His most important sources had dried up. Especially because there had been no rain for many years around the equator. ...


Prof Henry Lamb - Aberystwyth Research Portal, see "Publications".
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Anthony Appleyard
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PostPosted: Mon Oct 08, 2018 3:02 pm    Post subject: Reply with quote

If even Lake Tana and Lake Victoria dried out, that drought must indeed have been severe; and any water that got past would likely have evaporated out in the Sudd in south Sudan.
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