Singh, Ajab (2024) Open paleoenvironment and dry climate in south India immediately before the Youngest Toba Tuff eruption (∼75 ka) are suggested by Vondrichnus structures at the Jwalapuram locality, Jurreru valley. Quaternary Research, 121. pp. 132-140. ISSN 0033-5894, DOI https://doi.org/10.1017/qua.2024.11.
Full text not available from this repository.Abstract
The Younger Toba Tuff (YTT) eruption is regarded as one of the largest of its time and possibly responsible for changing past climate and vegetation from C-3 to C-4 in the Indian subcontinent. A paleosol constituting a Toba pre-tephra horizon at the Jwalapuram locality, exhibits the preservation of biogenic structures identified as Vondrichnus planoglobus and Vondrichnus obovatus. This study investigated their paleoecological and paleoenvironmental significance. These structures are hard and compact, rounded to sub-rounded, spherical to sub-spherical bodies with empty chambers, surrounded by carbonate layers, and preserved in close proximity to termite pipes and nests and rhizolith structures. Their occurrence in the Jwalapuram area is significant, as the locality has been well documented as suitable for reconstruction of past climate and vegetation in light of the impact of the YTT eruption. Based on the present findings, we assume that the investigated locality would likely have an insect population and bush to scrub vegetation, indicating a dry environment immediately before the YTT eruption.
| Item Type: | Article |
|---|---|
| Funders: | Science and Engineering Research Board (SERB), New Delhi, India (SB/SE/S4-2013), SGB Amravati University, Maharashtra, India |
| Uncontrolled Keywords: | Paleosol; Vondrichnus; Dry climate; YTT eruption; Quaternary |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Science > Department of Geology |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 08 Jan 2025 08:57 |
| Last Modified: | 08 Jan 2025 08:57 |
| URI: | http://eprints.um.edu.my/id/eprint/47007 |
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