Cryptotephra from the 74 ka BP Toba super-eruption in the Billa Surgam caves, southern India

QUATERNARY SCIENCE REVIEWS

卷:30

Article

Lane, Christine¹  Haslam, Michael¹  Petraglia, Michael¹  Ditchfield, Peter¹  Smith, Victoria¹  Korisettar, Ravi² 

[1] Univ Oxford, Res Lab Archaeol & Hist Art, Oxford OX1 3QY, England

[2] Karnatak Univ, Dept Hist & Archaeol, Dharwad 580003, Karnataka, India

关键词: Tephrochronology;    Youngest Toba Tuff;    Pleistocene archaeology;    Indian Middle Palaeolithic;    Caves;   

DOI  :  10.1016/j.quascirev.2011.05.010

来源: Elsevier

【 摘 要 】

The similar to 74 ka BP Youngest Toba Tuff (YTT), from the largest known Quaternary volcanic eruption, has been found for the first time as a non-visible (crypto-) tephra layer within the Billa Surgam caves, southern India. The occurrence of the YTT layer in Charnel House Cave provides the first calendrical age estimate for this much debated Pleistocene faunal sequence and demonstrates the first successful application of cryptotephrochronology within a cave sequence. The YTT layer lies similar to 50 cm below a major sedimentological change, which is related to global cooling around the MIS 5 to MIS 4 transition. Using this isochronous event layer the Billa Surgam Cave record can be directly correlated with other archaeological sites in peninsular India and palaeoenvironmental archives across southern Asia. (C) 2011 Elsevier Ltd. All rights reserved.

【 授权许可】

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