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N. Mulchandani ¹, S. Bhandari ¹, Rachna Raj ¹, S. I. Vaid ¹

Affiliations
1 Department of Geology, M.S.University of Baroda, Vadodara - 390 002, IN

Abstract

Sedimentation in an alluvial fan environment in Heran and Kara river valley of lower Narmada basin has been recognized. The fans are incised by Heran and Kara rivers due to vertical movements along faults. The architecture of the fans is built by various lithofacies (Gc, Gms, Gh, Gp, Gm, Sh, Sp and Gsh) with maximum clast size ranging from cobbles to large isolated boulders, mainly of basalts. The variations in the lithofacies are considered to be largely controlled by the then prevailing climates. Tectonics created the accommodation space within which fan aggradation took place and shaped their present morphology. The fan aggradation in Heran and Kara rivers appear to have taken place during Late Pleistocene and Early Holocene, respectively. An overall humid climate together with tectonic activity is inferred for the formation of alluvial fans in Heran and Kara rivers.

Keywords

Alluvial fan, Tectonics, Geomorphology, Late Quaternary, Lower Narmada basin.

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N. Juyal ¹, L. S. Chamyal ², S. Bhandari ², D. M. Maurya ², A. K. Singhvi ¹

Affiliations
1 Physical Research Laboratory, Navrangpura, Ahmedabad - 380 009, IN
2 Department of Geology, M S University of Baroda, Vadodara - 390 002, IN

Abstract

Chronometric and sedimentological data generated from the exposed Quaternary sequences of the Orsang River basin indicate close correspondence between the environmental changes and fluvial aggradation. The oldest and regionally extensive fine Silty-Clay occurring at the base of the successions is dated to >97 ka suggesting prevalence of high sinuosity suspended load fluvial regime. Its stratigraphics portion suggests that the deposition occurred during the enhanced southwest monsoon corresponding to the Marine isotopic Stage-5 (MIS-5). The gravel deposits that overlie provide an age of -60 ka indicating dominance of braided system (MIS-4) during the reduced southwest monsoon. The pluvial interstadial (MIS-3) is represented by flood plain facies that was deposited under the persistent fluvial system strengthened by enhanced southwest monsoon and assigned ages ranging between 50 and 30 ka. An extensive aeolian sand sheet that blankets the topography, is luminescence dated to 21 ka suggesting the onset of Last Glacial Maximum in the Orsang River basin.

Keywords

Late Pleistocene, Fluvial Aggradation, Environmental Change, Orsang River Basin, Western India.

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S. Bhandari ¹, S. K. Tak ¹, S. Goyal ¹

Affiliations
1 Depariment of Pediatrics, R. N. T. Medical College, Udaipur, Rajasthan, IN

Abstract

In India, though the breast feeding is traditional child rearing practice, yet some women resort to feeding of bovine milk to their babies because of various reasons. In recent years, numerous advantages of breast milk have been emphasized based on scientific experimentation.

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