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How can SSA ancestry=True Negro and Niger Kongo, when....
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[QUOTE]Originally posted by Swenet: [QB] [QUOTE]Originally posted by 42Tribes: Interesting. Was it the desertification?[/QUOTE]Marks et al don’t think desertification is the only reason why areas south of the 2nd cataract were largely depopulated because: [QUOTE][w]hile the region from south of the Batn el Hajar to well above Khartoum was arid during the Late Pleistocene (Wickens 1975,1982; Williams 1982), [b]this cannot in itself account for the absence of populations along the Nile, since it was equally arid north of the Batn el Hajar where there was continuous occupation until almost the very end of the Pleistocene (Connor and Marks 1985).[/b][/QUOTE]Marks et al are saying lower Sudan suffered the same deteriorating conditions, but populations there are very visible in the archaeological record along the Nile in Late Palaeolithic times. But desertification did play some sort of role in their view because they see immediate repopulation in central Sudan (by Mesolithic Nubians) as soon as the climate gets better: [QUOTE]The absence of preceramic Late Paleolithic occupation is particularly strange because of the [b]rather extensive distribution of early ceramic Khartoum Mesolithic-related sites between the Second Cataract and Khartoum (Arkell 1949a; Caneva 1983; Shiner 1968b), the earliest of which well may date to the very beginning of the Holocene[/b] (Khabir 1985). At the moment, it seems as if the central Nile Valley, south of the Batn el Hajar, [b]saw no significant Late Pleistocene human occupation and that the Khartoum Mesolithic peoples, with their distinctive ceramics and their undistinguished stone tools, arrived as immigrants from some adjacent region.[/b][/QUOTE][URL=https://www.researchgate.net/publication/44790784_Late_Pleistocene_and_Early_Holocene_Occupations_in_the_Upper_Atbara_River_Valley]Source[/URL] See the paper for more context and comments. I recommend reading it in spite of the jargon. Marks et al and this entire subject is filled with details important for ongoing conversations (e.g. the controversial interpretations by new age multiregionalists like [URL=http://www.egyptsearch.com/forums/ultimatebb.cgi?ubb=get_topic;f=8;t=010087]clueless Cabrera, Jeffrey Rose, Petraglia et al[/URL] being one example). It's all connected. I’ll leave it to you guys to get to the bottom of it. [/QB][/QUOTE]
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