دورية أكاديمية
أعرض في EDS

Tufas indicate prolonged periods of water availability linked to human occupation in the southern Kalahari.

التفاصيل البيبلوغرافية
العنوان: Tufas indicate prolonged periods of water availability linked to human occupation in the southern Kalahari.
المؤلفون: Jessica von der Meden, Robyn Pickering, Benjamin J Schoville, Helen Green, Rieneke Weij, John Hellstrom, Alan Greig, Jon Woodhead, Wendy Khumalo, Jayne Wilkins
المصدر: PLoS ONE, Vol 17, Iss 7, p e0270104 (2022)
بيانات النشر: Public Library of Science (PLoS), 2022.
سنة النشر: 2022
المجموعة: LCC:Medicine
LCC:Science
مصطلحات موضوعية: Medicine, Science
الوصف: Detailed, well-dated palaeoclimate and archaeological records are critical for understanding the impact of environmental change on human evolution. Ga-Mohana Hill, in the southern Kalahari, South Africa, preserves a Pleistocene archaeological sequence. Relict tufas at the site are evidence of past flowing streams, waterfalls, and shallow pools. Here, we use laser ablation screening to target material suitable for uranium-thorium dating. We obtained 33 ages covering the last 110 thousand years (ka) and identify five tufa formation episodes at 114-100 ka, 73-48 ka, 44-32 ka, 15-6 ka, and ~3 ka. Three tufa episodes are coincident with the archaeological units at Ga-Mohana Hill dating to ~105 ka, ~31 ka, and ~15 ka. Based on our data and the coincidence of dated layers from other local records, we argue that in the southern Kalahari, from ~240 ka to ~71 ka wet phases and human occupation are coupled, but by ~20 ka during the Last Glacial Maximum (LGM), they are decoupled.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1932-6203
Relation: https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0270104
URL الوصول: https://doaj.org/article/7f3280ca72eb4c1591ae316504fcf332
رقم الأكسشن: edsdoj.7f3280ca72eb4c1591ae316504fcf332
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19326203
DOI:10.1371/journal.pone.0270104