Hostname: page-component-848d4c4894-4rdrl Total loading time: 0 Render date: 2024-07-03T23:58:19.005Z Has data issue: false hasContentIssue false
  • English
  • Français

A Comparative Study of Monsoonal and Non-Monsoonal Himalayan Lakes, India

Published online by Cambridge University Press:  18 July 2016

Sheela Kusumgar ,
D. P. Agrawal ,
R. D. Deshpande ,
Rengaswamy Ramesh ,
Chhemendra Sharma  and
M. G. Yadava
Sheela Kusumgar
Affiliation:
Physical Research Laboratory, Navrangpura Ahmedabad 380 009 India
D. P. Agrawal
Affiliation:
Physical Research Laboratory, Navrangpura Ahmedabad 380 009 India
R. D. Deshpande
Affiliation:
Physical Research Laboratory, Navrangpura Ahmedabad 380 009 India
Rengaswamy Ramesh
Affiliation:
Physical Research Laboratory, Navrangpura Ahmedabad 380 009 India
Chhemendra Sharma
Affiliation:
Physical Research Laboratory, Navrangpura Ahmedabad 380 009 India
M. G. Yadava
Affiliation:
Physical Research Laboratory, Navrangpura 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.

Sedimentological, mineral magnetic and carbon isotopic studies on cores from Mansar Lake in the Jammu area provide paleomonsoonal history dating back to 580 bc. From ca. 580 bc to ad 300, the region experienced precipitation similar to the present, whereas from ad 300 to 1400, the monsoon was relatively subdued. A small excursion ca. ad 1100 suggests an effect of medieval warming. Studies in the Kumaon region did not provide a proper precipitation record, as anthropogenic activity interfered with sedimentation. Manasbal Lake in Kashmir gave an inversion of 14C chronology due to younger paleosols in the drainage basin. Further, the episodic nature of sedimentation in Manasbal Lake hampered the reconstruction of precipitation history in the area.

Type
I. 14C in the Reconstruction of Past Environments
Information
Radiocarbon , Volume 37 , Issue 2 , 1995 , pp. 191 - 195
Copyright
Copyright © the Department of Geosciences, The University of Arizona 

References

Gupta, S. K. and Polach, H. A. 1985. Radiocarbon Dating Practices at ANU. Radiocarbon Laboratory, Research School of Pacific Studies, ANU, Canberra: 173 p.Google Scholar
Krishnaswami, S., Lal, D., Martin, J. M. and Maybeck, M. 1971 Geochronology of lake sediments. Earth and Planetary Science Letters 11: 407–414.CrossRefGoogle Scholar
Kusumgar, S., Agrawal, D. P., Bhandari, N., Deshpande, R. D., Raina, A., Sharma, C. and Yadava, M. G. 1992 Lake sediments from the Kashmir Himalayas: Inverted 14C chronology and its implications. In Long, A. and Kra, R. S. eds., Proceedings of the 14th International 14C Conference. Radiocarbon 34(3): 561–565.Google Scholar
Kusumgar, S., Agrawal, D. P. and Sharma, P. 1989 Radiocarbon chronology and magnetic susceptibility variation in Kumaon lake sediments. In Long, A., Kra, R. S. and Srdoč, D., eds., Proceedings of the 13th International 14C Conference. Radiocarbon 31(3): 957–964.CrossRefGoogle Scholar
Mackereth, F. J. H. 1958 A portable core sampler for lake deposits. Limnology and Oceanography 3: 181–191.Google Scholar
Meher-Homji, V. M. 1971 The climate of Srinagar and its variability. Geographical Review of India 33(1): 1–14.Google Scholar
Smith, B. N. and Epstein, S. 1971 Two categories of 13C/12C ratios for higher plants. Plant Physiology 47:380–384.Google Scholar
Thompson, R. and Oldfield, F. 1986 Environmental Magnetism. London, Allen and Unwin: 227 p.Google Scholar