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Humid periods in southern Arabia; windows of opportunity for modern human dispersal

Rosenberg, T. M ; Preusser, F ; Fleitmann, D ; Schwalb, A ; Penkman, K ; Schmid, T. W ; Al-Shanti, M. A ; Kadi, K ; Matter, A

Geology (Boulder), 2011-12, Vol.39 (12), p.1115-1118 [Periódico revisado por pares]

Boulder: Geological Society of America (GSA)

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Título:
Humid periods in southern Arabia; windows of opportunity for modern human dispersal
Autor: Rosenberg, T. M ; Preusser, F ; Fleitmann, D ; Schwalb, A ; Penkman, K ; Schmid, T. W ; Al-Shanti, M. A ; Kadi, K ; Matter, A
Assuntos: absolute age ; Arabian Peninsula ; arid environment ; Asia ; biogeography ; C-14 ; carbon ; Cenozoic ; Chordata ; climate change ; dates ; Dispersal ; Environmental conditions ; Eutheria ; Freshwater ; Geochronology ; Geological time ; Hominidae ; Hominids ; Homo ; Homo sapiens ; humid environment ; isotopes ; Khujaymah Saudi Arabia ; lacustrine environment ; lake sediments ; Lakes ; Mammalia ; migration ; Mundafan Saudi Arabia ; paleoclimatology ; paleoecology ; Primates ; Quaternary ; Quaternary geology ; radioactive isotopes ; Red Sea region ; relict materials ; Rub' al Khali ; Saudi Arabia ; sediments ; terrestrial environment ; Tetrapoda ; Theria ; upper Quaternary ; Vertebrata
É parte de: Geology (Boulder), 2011-12, Vol.39 (12), p.1115-1118
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Descrição: Arabia is a key area for the dispersal of anatomically modern humans (AMH, Homo sapiens) out of Africa. Given its modern hostile environment, the question of the timing of dispersal is also a question of climatic conditions. Fresh water and food were crucial factors facilitating AMH expansions into Arabia. By dating relict lake deposits, four periods of lake formation were identified: one during the early Holocene and three during the late Pleistocene centered ca. 80, ca. 100, and ca. 125 ka. Favorable environmental conditions during these periods allowed AMH to migrate across southern Arabia. Between ca. 75 and 10.5 ka, arid conditions prevailed and turned southern Arabia into a natural barrier for human dispersal. Thus, expansion of AMH through the southern corridor into Asia must have taken place before 75 ka, possibly in multiple dispersals.
Editor: Boulder: Geological Society of America (GSA)
Idioma: Inglês

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Humid periods in southern Arabia; windows of opportunity for modern human dispersal

Rosenberg, T. M ; Preusser, F ; Fleitmann, D ; Schwalb, A ; Penkman, K ; Schmid, T. W ; Al-Shanti, M. A ; Kadi, K ; Matter, A

Boulder: Geological Society of America (GSA)

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