Extending the limit of widespread dispersed Toba volcanic glass shards and identification of new in-situ volcanic events in the Central Indian Ocean Basin

We report the widespread extent of Toba volcanic glass shards in the Central Indian Ocean Basin. Investigation of four sediment cores (7º–17ºS) revealed several shard-rich horizons (SRH) that provide the first detailed tephrochronology for volcanic glass shards in the CIOB. A comparative study of su...

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Bibliographic Details
Published in:Journal of Earth System Science 2020-12, Vol.129 (1), p.175, Article 175
Main Authors: Amonkar, Ankeeta, Iyer, Sridhar D, Babu, E V S S K, Manju, S
Format: Article
Language:English
Subjects:
Age
Comparative analysis
Comparative studies
Cores
Earth and Environmental Science
Earth Sciences
Ocean basins
Oceans
Palaeomagnetism
Paleomagnetism
Sediment
Sedimentation rates
Sediments
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Tuff
Volcanic glass
Volcanoes
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Summary:We report the widespread extent of Toba volcanic glass shards in the Central Indian Ocean Basin. Investigation of four sediment cores (7º–17ºS) revealed several shard-rich horizons (SRH) that provide the first detailed tephrochronology for volcanic glass shards in the CIOB. A comparative study of surface sediments floored with Youngest Toba Tuff (YTT), indicate that irrespective of the rate of sedimentation, YTT in the basin is restricted to a depth of
ISSN:2347-4327
0253-4126
0973-774X
DOI:10.1007/s12040-020-01429-6