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Late Pleistocene Relative Sea-Level Changes from Saurashtra, West Coast of India


Affiliations
1 Active Tectonics Group, Institute of Seismological Research, Gandhinagar 382 009, Korea, Democratic People's Republic of
2 Department of Geology, The M.S. University of Baroda, Vadodara 390 002, Korea, Democratic People's Republic of
3 Department of Geology, Kangwon National University, Kangwon 24341, Korea, Democratic People's Republic of
 

The fluvial systems of Saurashtra, Gujarat, India have archived signatures of sea-level stands for the Late Quaternary Period. Based on geomorphology, sedimentology and optical dating, the lower reaches of Noli river in southwestern Saurashtra reveal the presence of marine, fluvially reworked and aeolian forms of miliolite. Optical chronology permits us to extend the age range of fluvially reworked miliolites from 75 (as previously believed) to 114 ka. The fluvial sequence of southwestern Saurashtra has responded to sea-level changes through meandering. Presence of aeolian miliolites dated to 23 ka suggests regional aridity during the time of their deposition and preservation. Marine notches in Diu mark Middle Holocene high sea-level stand and their preservation implies active tectonism in the region.

Keywords

Fluvial Response, Optical Dating, Miliolites, Sea-Level Change.
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  • Sharma, K., Bhatt, N. P., Shukla, A. D., Cheong, D. and Singhvi, A. K., Optical dating of Late Quaternary carbonate sequences of Saurashtra, western India. Quaternary Res., 2017, 87, 133–150.

  • Evans, J. W., Mechanically-formed limestones from Junagarh (Kathiawar), and other localities. Q. J. Geol. Soc. London, 1900, 56, 559–583.

  • Lele, V. S., The miliolite limestone of Saurashtra, western India. Sediment. Geol., 1973, 10, 301–310.

  • Marathe, A. R., Rajaguru, S. N. and Lele, V. S., On the problem of the origin and age of the miliolite rocks of the Hiran valley, Saurashtra, western India. Sediment. Geol., 1977, 19, 197–215.

  • Rajaguru, S. N. and Marathe, A. R., Miliolite formation in the Hiran Valley. In Ecology and Archaeology of Western India (eds Agrawal, D. P. and Pande, B. M.), Concept, Delhi, 1977, pp. 209– 217.

  • Baskaran, M., Rajagopalan, G. and Somayajulu, B. L. K., 230Th/ 234U and 14C dating of the Quaternary carbonate deposits of Saurashtra, India. Chem. Geol. (Isot. Geosci. Sec.), 1989, 79, 65– 82.

  • Bhatt, N., The Late Quaternary bioclastic carbonate deposits of Saurashtra and Kachchh, Gujarat, western India: a review. Proc. Indian Natl. Sci. Acad., 2003, 69(2), 137–150.

  • Hashimi, N. H., Nigam, R., Nair, R. R. and Rajagopalan, G., Holocene sea level fluctuations on western India continental margin: an update. J. Geol. Soc. India, 1995, 46, 157–162.

  • Rao, P. C., Veerayya, M., Thamban, M. and Wagle, B. G., Evidences of Late Quaternary neotectonic activity and sea-level changes along the western continental margin of India. Curr. Sci., 1996, 71, 213–219.

  • Juyal, N., Chamyal, L. S., Bhandari, S., Bhushan, R. and Singhvi, A. K., Continental record of the southwest monsoon during the last 130 ka: evidence from the southern margin of the Thar desert, India. Quaternary Sci. Rev., 2006, 25, 2632–2650.

  • Pant, R. K. and Juyal, N., Late Quaternary coastal instability and sea level changes: new evidences from Saurashtra coast, western India. Z. Geomorphol., 1993, 37, 2940.

  • Bhatt, N. and Bhonde, U., Geomorphic expressions of Late Quaternary sea level changes along the southern Saurashtra coast, western India. J. Earth Syst. Sci., 2006, 115(4), 395–402.

  • Chamyal, L. S., Maurya, D. M. and Rachna, R., Fluvial systems of the drylands of western India: a synthesis of Late Quaternary environmental and tectonic changes. Quaternary Int., 2003, 104, 69– 86.

  • Das, A., Prizomwala, S., Makwana, N. and Thakkar, M., Late Pleistocene–Holocene climate and sea level changes inferred 1 based on the tidal terrace sequence, Kachchh, western India. Palaeogeogr., Palaeoclimatol., Palaeoecol., 2017, 473, 82–93.

  • Merh, S. S., Geology of Gujarat, Geological Society of India, Bangalore, 1995, p. 224.

  • Boggs, S., Principles of Sedimentology and Stratigraphy, Pearson Prentice Hall, NJ, USA, 2006, 4th edn, pp. 94–97.

  • Bhatt, N. and Bhonde, U., Quaternary fluvial sequences of southern Saurashtra, western India. Curr. Sci., 2003, 84(8), 1065–1071.

  • Leuschner, D. C. and Sirocko, F., Orbital insolation forcing of the Indian monsoon a motor for global climate changes? Palaeogeogr. Palaeoclimatol. Palaeoecol., 2003, 197, 83–95.

  • Baskaran, M., Sahai, B., Sood, R. K. and Somayajulu, B. L. K., Geochronological studies of strandlines of Saurashtra, India, detected by remote sensing techniques. Int. J. Remote Sensing, 1987, 8(2), 169–176.

  • Blum, M. D. and Tornqvist, T. E., Fluvial responses to climate and sea-level change: a review and look forward. Sedimentology, 2000, 47, 2–48.

  • Yadav, R. B. S. et al., The 2007 Talala, Saurashtra, western India earthquake sequence: tectonic implications and seismicity triggering. J. Asian Earth Sci., 2011, 40, 303–314.

  • Singh, A. P., Mishra, O. P., Rastogi, B. K. and Kumar, S., Crustal heterogeneities beneath the 2011 Talala, Saurashtra earthquake, Gujarat, India source zone: seismological evidence for neotectonics. J. Asian Earth Sci., 2013, 62, 672–684.

  • Bhonde, U. and Bhatt, N., Joints as fingerprints of stress in the Quaternary carbonate deposits along coastal Saurashtra, western India. J. Geol. Soc. India, 2009, 74, 703–710.

  • Kazmer, M., Bhatt, N., Ukey, V., Prizomwala, S., Taborosi, S. and Szekely, B., Archaeological evidence for modern coastal uplift at Diu, Saurashtra Peninsula, India. Geoarchaeology, 2016, 31, 376– 387.

  • Juyal, N., Kar, A., Rajaguru, S. N. and Singhvi, A. K., Luminiscence chronology of aeolian deposition during the Late Quaternary on the southern margin of Thar dessert, India. Quaternary Int., 2009, 104, 87–98.

  • Banerji, U. S., Pandey, S., Bhushan, R. and Juyal, N., MidHolocene climate and land–sea interaction along the southern coast of Saurashtra, western India. J. Asian Earth Sci., 2015, 111, 428–439.


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  • Late Pleistocene Relative Sea-Level Changes from Saurashtra, West Coast of India

Abstract Views: 357  |  PDF Views: 165

Authors

S. P. Prizomwala
Active Tectonics Group, Institute of Seismological Research, Gandhinagar 382 009, Korea, Democratic People's Republic of
Gunjan Yadav
Active Tectonics Group, Institute of Seismological Research, Gandhinagar 382 009, Korea, Democratic People's Republic of
Nilesh Bhatt
Department of Geology, The M.S. University of Baroda, Vadodara 390 002, Korea, Democratic People's Republic of
Komal Sharma
Department of Geology, Kangwon National University, Kangwon 24341, Korea, Democratic People's Republic of

Abstract


The fluvial systems of Saurashtra, Gujarat, India have archived signatures of sea-level stands for the Late Quaternary Period. Based on geomorphology, sedimentology and optical dating, the lower reaches of Noli river in southwestern Saurashtra reveal the presence of marine, fluvially reworked and aeolian forms of miliolite. Optical chronology permits us to extend the age range of fluvially reworked miliolites from 75 (as previously believed) to 114 ka. The fluvial sequence of southwestern Saurashtra has responded to sea-level changes through meandering. Presence of aeolian miliolites dated to 23 ka suggests regional aridity during the time of their deposition and preservation. Marine notches in Diu mark Middle Holocene high sea-level stand and their preservation implies active tectonism in the region.

Keywords


Fluvial Response, Optical Dating, Miliolites, Sea-Level Change.

References





DOI: https://doi.org/10.18520/cs%2Fv115%2Fi12%2F2297-2301