| 翻訳と辞書 |
| Holocene Wet Phase ： ウィキペディア英語版 |
Neolithic Subpluvial
The Neolithic Subpluvial, or the Holocene Wet Phase, was an extended period (from about 7500–7000 BCE to about 3500–3000 BCE) of wet and rainy conditions in the climate history of northern Africa. It was both preceded and followed by much drier periods.
The Neolithic Subpluvial was the most recent of a number of periods of "Wet Sahara" or "Green Sahara", during which the Sahara region was much more moist and supported a richer biota and human population than the present-day desert.
== Date ranges ==
The Neolithic Subpluvial began during the 7th millennium BC and was strong for about 2,000 years; it waned over time and ended after the 5.9 kiloyear event (3900 BCE). Then the drier conditions that prevailed prior to the Neolithic Subpluvial returned; desertification advanced, and the Sahara Desert formed (or re-formed). Arid conditions have continued through to the present day.〔Sources differ on specific date ranges, which necessarily varied over such a wide geographic expanse. One (Bard, Kathryn A. (1999), ed. ''Encyclopedia of the Archaeology of Ancient Egypt.'' London, Routledge, pg 863) gives "9000–5000 BP," or 7000–3000 BCE, for the duration of the subpluvial. Another (Wilkinson, Toby A. H. (1999), ''Early Dynastic Egypt.'' London, Routledge, pg 372) places the end of the subpluvial c. 3300 BCE.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Neolithic Subpluvial」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|