Paleoclimate Variability in the Mediterranean and Red Sea Region 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Eelco J. Rohling 作者

University of Chicago

译者

2013-7 出版日期

55 页数

USD 40.00 价格

Paperback

丛书系列

9786132595522 图书编码

Paleoclimate Variability in the Mediterranean and Red Sea Region 在线电子书图书标签: 气象学世界史前史

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发表于2024-09-19

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Paleoclimate Variability in the Mediterranean and Red Sea Region 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

Paleoclimate Variability in the Mediterranean and Red Sea Region 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Paleoclimate Variability in the Mediterranean and Red Sea Region 在线电子书图书描述

The Mediterranean–Red Sea region has been critical to dispersal of hominids and other species between Africa and the rest of the world, and climate and sea level are thought to be key controls on migration pathways. Assessing climate variations, we highlight increased millennial-scale variability at 480–460, 440–400, 380–360, 340–320, 260–220, 200–160, 140–120, and 80–40 thousand years ago (ka), which likely caused intermittent habitat fragmentation. We also find that passageways across the Sahara Desert and the northern out-of-Africa route (from Egypt into the Levant) were intermittently open during pluvials associated with orbital insolation maxima. No such relationship is apparent for the southern out-of-Africa route (across the Red Sea). Instead, we present a novel interpretation of combined sea-level and regional climate control on potential migrations via the southern route, with “windows of opportunity” at 458–448, 345–340, 272–265, 145–140, and 70–65 ka. The 145–140 ka window seems relevant for early colonization of Arabia at 127 ± 16 ka, and the 70–65 ka window agrees with estimates of 65 +5/−8 ka for the final out-of-Africa migration by the anatomically modern human founder group of all non-Africans. Once they reached Eurasian Mediterranean margins, populations benefited from a rich diversity of terrain and microclimates, with persistent favorable conditions in lowlands and potential to occupy higher elevations during milder periods.

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