170 research outputs found
Reply to the comment on 'Environmental impact of the 73 ka Toba super-eruption in South Asia' by M. A. J. Williams, S. H. Ambrose, S. van der Kaars, C. Ruehlemann, U. Chattopadhyaya, J. Pal, P. R. Chauhan
No full textHaslam and Petraglia raise three broad questions concerning our paper ‘Environmental impact of the 73 ka Toba super-eruption in South Asia’, by Martin A. J. Williams, Stanley H. Ambrose, Sander van der Kaars, Carsten Ruehlemann, Umesh Chattopadhyaya, Jagannath Pal, Parth R. Chauhan [Palaeogeography, Palaeoclimatology, Palaeoecology 284 (2009) 295–314]. (a) What was the relationship between the 73 ka Toba eruption and the cold stade between the Dansgaard–Oeschger interstades 20 and 19? (b) What was the regional impact of the eruption on vegetation? (c) What was the possible effect of the eruption upon humans and mammals? In response to questions (a) and (b) we note that the 73 ka Toba eruption was followed by several centuries of intense cooling and wind-blown dust accession in the Greenland GISP2 ice core, by a change from forest to grassland or open woodland in central India (carbon isotopic analysis) and in the wider region (pollen analysis of a marine sediment core in the Bay of Bengal). In regard to (c), the genetic evidence is as yet too imprecisely dated to demonstrate causality as is the archaeological evidence cited by Haslam and Petraglia in favour of minimal impact. Future work supported by higher resolution chronologies than are presently available is needed to provide a less equivocal picture of the environmental impact of the 73 ka Toba eruption.Martin A.J. Williams, Stanley H. Ambrose, Sander van der Kaars, Carsten Ruehlemann, Umesh Chattopadhyaya, Jagannath Pal and Parth R. Chauha
Forum : Asian archaeology: Recent discoveries and controversies, 28 mars 2016
No full textAsian archaeology: Recent discoveries and controversies 28 mars 2016, 14h-16h Harvard-Yenching Institute Annual Forum Lower Level Seminar Room, Center for European Studies, 27 Kirkland St., Cambridge Co-sponsored by HYI and the Asia Center, Harvard University Reception to follow roundtable Roundtable panelists: Parth R. Chauhan (Assistant Professor, Dept. of Humanities & Social Sciences, Indian Institute of Science Education & Research, Mohali, Punjab) Piphal Heng (PhD Candidate, De..
Early Homo Occupation Near the Gate of Tears: Examining the Paleoanthropological Records of Djibouti and Yemen
No full textPaleolithic Exploitation of Rounded and Sub-Angular Quartzites in the Indian Subcontinent
No full textHuman Evolution in the Center of the Old World: An Updated Review of the South Asian Paleolithic
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Interpretative shifts in understanding the prehistoric settlement of the Indian Subcontinent
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