Reply to Discussion on ‘Acheulian and Tephra from Upland Western Maharashtra, (Deccan Volcanic Province), Peninsular India’, by Deo et al. 2021 (SP 515)

2021 ◽  
pp. jgs2021-145
Author(s):  
Sushama G. Deo ◽  
Andre Baptista ◽  
Sharad N. Rajaguru
Keyword(s):  
Deccan Volcanic Province ◽  
Peninsular India ◽  
Volcanic Province

We acknowledge with gratitude the comments by Pearce et al on our paper on the Acheulian and Tephra in the Deccan Volcanic Province in Peninsula India with reference to the sites of Bori and Morgaon. These comments are appreciated, and have been duly taken under advisement.

Discussion on ‘Acheulian and Tephra from Upland Western Maharashtra, (Deccan Volcanic Province), Peninsular India’, by Deo et al. 2021 (SP 515)

2021 ◽  
pp. jgs2021-120
Author(s):  
Nicholas J.G. Pearce ◽  
Emma Gatti ◽  
Hema Achyuthan
Keyword(s):  
Volcanic Ash ◽  
Fission Track ◽  
Human Occupation ◽  
Deccan Volcanic Province ◽  
Peninsular India ◽  
Volcanic Province ◽  
Ash Layer ◽  
Wide Range ◽  
The Subject ◽  
Toba Caldera

Acheulean artefacts are widely known from archaeological complexes in India and commonly comprise handaxes, picks and cleavers. These provide information on human occupation and evolution across India, and have been the subject of much research on stone technology. In some of these sites, artefacts are associated with a Pleistocene volcanic ash layer derived from the Toba caldera in Sumatra, but various studies have derived a wide range of ages from this deposit leading to differing schools of thought as to the age of the tephra. Recent trace element, fission track and mineralogical studies (since 2011), have enabled accurate recognition of each Toba eruptive unit across their fall out, but these approaches continue to be overlooked in some studies where artefacts and Toba tephra co-exist in India. This leads to significant errors in tephra identification, and thus hampers any derived age interpretations. Most recently, this includes the study by Deo et al. (2021) who, in Geological Society Special Publication 515 (Tiwari et al., 2021), report ages for artefacts and tephra from two sites in the Deccan Volcanic Province which have become pivotal in many arguments, namely Morgaon and Bori. Here we address these issues and reiterate the methods for identification of the three main Toba tephra deposits.

Acheulian and Tephra from Upland Western Maharashtra, (Deccan Volcanic Province), Peninsular India

2021 ◽  
pp. SP515-2020-208
Author(s):  
Sushama G. Deo ◽  
Andre Baptista ◽  
Sharad N. Rajaguru
Keyword(s):  
Late Pleistocene ◽  
High Energy ◽  
Early Pleistocene ◽  
Deccan Volcanic Province ◽  
Peninsular India ◽  
Volcanic Province ◽  
Dating Methods ◽  
Tephra Deposit ◽  
Minimum Age ◽  
Technological Analysis

AbstractThe two Early Acheulian sites of Bori and Morgaon from the Deccan Volcanic Province in Upland Maharashtra, India bear some association with an acidic tephra deposit in a fluvial context. Acheulian artefacts in association with tephra were first reported in India from the site of Bori and numerous efforts to date this tephra have since been undertaken. These efforts employed various dating methods and produced a total of 10 absolute dates ranging from the Early Pleistocene with a maximum age of 1.4 ma to the Late Pleistocene with a minimum age of 23.4 ± 2.4 ka. However, field observations and a typo-technological analysis strongly suggests that these Early Acheulian artefacts occur in a semi-primary context and thus contest the Late Pleistocene age of the tephra and re-deposition of the artefacts as argued by some scholars.At Morgaon, the Acheulian artefacts have been recovered from basal fluvial sediments that contain clasts of laterite. These sediments are capped by two low energy clay facies that are separated by a high energy gravel lense. The tephra at Morgaon has been reported from the upper clay facies and has produced absolute dates ranging from the Matuyama period (> 0.78 ma) to the Late Pleistocene (41 ka).After more than two decades of investigation at these sites, the number of absolute dates procured through methods such as ESR, 39Ar-40Ar, U-Th and Palaeo-magnetism though encouraging, are inconclusive. The present communication is therefore an attempt to gauge the nature of palaeo-landscapes that most probably existed during the Early Quaternary. This will be achieved by studying local geomorphological variability between the two sites along with a preliminary analysis of lithic morphology.

Vertebrate biodiversity of the Deccan volcanic province of India: A review

2012 ◽  
Vol 183 (6) ◽  
pp. 597-610 ◽  
Author(s):  
Guntupalli V.R. Prasad
Keyword(s):  
Volcanic Eruptions ◽  
Flood Basalt ◽  
Time Span ◽  
Deccan Traps ◽  
Mass Extinctions ◽  
Deccan Volcanic Province ◽  
Peninsular India ◽  
Volcanic Province ◽  
Detailed Review ◽  
Faunal Diversity

Abstract The Deccan Traps of peninsular India, representing one of the largest flood basalt eruptions on the earth's surface, have been a subject of intensive research in the last three decades because of the attributed link between the Deccan Traps and the Cretaceous-Tertiary boundary mass extinctions. In this context, the biota from the sedimentary beds intercalated with the volcanic flows and underlying the oldest volcanic flow are more important for understanding the faunal diversity and palaeobiogeography of India during the time span of volcanic eruptions. A detailed review of the vertebrate faunal diversity of the Deccan volcanic province is presented here.

Fluoride Accumulation in Groundwater from Semi-arid Part of Deccan Volcanic Province, India: A Cause of Urolithiasis Outbreak

2017 ◽  
Vol 1 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Sanjay Kale ◽  
N. J. Pawar
Keyword(s):  
Medical Records ◽  
Fluoride Concentration ◽  
Data Generation ◽  
Deccan Volcanic Province ◽  
Temporal And Spatial Distribution ◽  
Volcanic Province ◽  
Fluoride Accumulation ◽  
Hot Days ◽  
Geochemical Investigation ◽  
Relationship Of

Groundwater fluoride and health problem was meticulously studied for dental and skeleton fluorosis except few studies on urolithiasis. Urolithiasis is multi-factorial disease and excess fluoride consumption is one of the causal factors. In view of this, increase of fluoride in groundwater is reported in semiarid Deccan Volcanic Province (DVP), India. To understand the fluoride and urolithiasis association, present study was carried out in Karha river basin of DVP region. Three stages of data generation were adopted for present study such as procuring of medical records of urolithiasis, previous groundwater chemistry data and geochemical investigation of 50 groundwater samples from representative villages. Further, these variables were used for correlation analysis, temporal and spatial distribution to find out their relationships. Result shows medical records of hospitals indicating the gradual increase in urolithiasis is reported during drought situations. In temporal variation, annual fluoride concentration of groundwater and hot days are positively correlated with annual urolith patients as well as spatial study supports the same. In conclusion, present study highlights the relationship of urolith formation with number of hot days, groundwater electrical conductivity and fluoride. However, detailed biomedical study may lead towards understanding of fluoride- urolithiasis relationship.

Mapping the sub-trappean Mesozoic sediments in the western part of Narmada–Tapti region of Deccan Volcanic Province, India

2014 ◽  
Vol 93 ◽  
pp. 15-24 ◽  
Author(s):  
A.S.N. Murty ◽  
Dipankar Sarkar ◽  
Mrinal K. Sen ◽  
V. Sridher ◽  
A.S.S.S.R.S. Prasad
Keyword(s):  
Deccan Volcanic Province ◽  
Volcanic Province
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