Hostname: page-component-7bb8b95d7b-wpx69 Total loading time: 0 Render date: 2024-09-21T08:55:47.538Z Has data issue: false hasContentIssue false
  • English
  • Français

Radiocarbon Chronology and Magnetic Susceptibility Variation in Kumaon Lake Sediments

Published online by Cambridge University Press:  18 July 2016

Sheela Kusumgar ,
D P Agrawal  and
Prabhakar Sharma
Sheela Kusumgar
Affiliation:
Physical Research Laboratory, Ahmedabad 380 009, India
D P Agrawal
Affiliation:
Physical Research Laboratory, Ahmedabad 380 009, India
Prabhakar Sharma
Affiliation:
Physical Research Laboratory, Ahmedabad 380 009, India
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

This study was carried out to determine time controls of erosion and sedimentation in the catchment area and lakes of the Naini Tal district in the Kumaon Himalayas. We present here our preliminary data from five lakes, Beon Tal, Garud Tal, Sukha Tal, Bhim Tal and Kamal Tal (Naukuchia Tal). A number of 14C dates are now available to estimate the sedimentation rate of the five lakes and magnetic susceptibility (xL; xfd) variation to determine the signature of sediment source. High xfd values indicate a higher proportion of soil component generally characterized by a slower rate of deposition, and low xfd values with a higher rate of sedimentation indicate rock-debris-derived sediment. A 14C chronology enables us to estimate the mean sedimentation rate whereas rock magnetic properties help us to characterize the type of source responsible for sedimentation.

Type
IV. Applications
Information
Radiocarbon , Volume 31 , Issue 3: June 20-25, 1988 Dubrovnik, Yugoslavia , 1989 , pp. 957 - 964
Copyright
Copyright © The American Journal of Science 

References

Agrawal, D P, Dodia, R, Kotlia, B S, Kusumgar, S and Sharma, P, 1986, Quantification of the erosion rates: some new perspectives: Jour Water Resources (Iraq), v 5, no. 2, p 40–52.Google Scholar
Gupta, HP and Khandelwal, A, 1982, Late Holocene palynology from the lake in Sat Tal valley, district Nainital, Kumaun Himalaya, UP: Geophytology, v 12, no. 2, p 313–321.Google Scholar
Sharma, P, Agrawal, DP, Kotlia, BS, Gupta, SK and Brisley, J, 1988, Environmental magnetism of lake sedimentation in Kumaon Himalayas: Indian Natl Sci Acad Proc, v 54 A, no. 4, p 595–604.Google Scholar
Thompson, R and Oldfield, F, 1986, Environmental magnetism: London, Allen and Unwin, 227 p.CrossRefGoogle Scholar
Valdiya, KS, 1983, Lesser Himalayan geology: crucial and controversies: Current Sci, v 52, no. 18, p 839–857.Google Scholar
Valdiya, KS, Joshi, DD, Sanwal, R and Tandon, SK, 1984, Geomorphologic development across the active Main Boundary Thrust, an example from the Nainital hills in Kumaon Himalaya: Jour Geol Soc India, v 25, no. 12, p 761–774.Google Scholar
Walling, DE, Peart, MR, Oldfield, F and Thompson, R, 1979, Suspended sediment sources identified by magnetic measurements: Nature, v 281, p 110–113.CrossRefGoogle Scholar