Hostname: page-component-848d4c4894-xm8r8 Total loading time: 0 Render date: 2024-06-26T16:15:37.107Z Has data issue: false hasContentIssue false

Pleistocene Climatic Changes and Landscape Evolution in the Kashmir Basin, India: Paleopedologic and Chronostratigraphic Studies

Published online by Cambridge University Press:  20 January 2017

Arnt Bronger
Affiliation:
Geographical Institute, University of Kiel, D-2300 Kiel, Federal Republic of Germany
Rajendra K. Pant
Affiliation:
Physical Research Laboratory, Ahmedabad-380 009, India
Ashok K. Singhvi
Affiliation:
Physical Research Laboratory, Ahmedabad-380 009, India

Abstract

The Kashmir Basin is filled with Pliocene-Pleistocene fluvio-lacustrine sediments. On the flank of the Pir Panjal these sediments, called “Lower Karewas”, are covered with loess deposits up to 25 m thick that contain numerous middle and late Pleistocene paleosols, mostly polygenetic pedocomplexes, which were classified by micromorphological studies. Thermoluminescence dates provide a chronostratigraphy of the late Pleistocene loess-paleosol sequences. On the Himalayan flank, the “Upper Karewas” are covered only with late Pleistocene loess-paleosol sequences. Their base is the last interglacial soil, developed ca. 110,000 ± 10,000 yr B.P. This soil is genetically comparable to the modern soil and, therefore, is thought to have developed under a deciduous forest in a “xeric” soil moisture regime. The loesses of last glacial age on both flanks of the basin contain three humus-rich Ah, mostly Aht, horizons, indicating three warm and mostly humid climatic episodes between ca. 80,000 and 50,000 yr B.P. The middle Pleistocene loesses contain at least four Bwt, or thick Bt, horizons developed during four interglacial periods, having climates similar to the present. Large parts of the Karewa Lake must have lasted until the end of the penultimate glacial age.

Type
Research Article
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Agrawal, D.P. Krishnamurthy, R.V. Kusumgar, S. Nautiyal, V. Athavale, R.N. Radhakrishnamurthy, C., (1979). Chronostratigraphy of loessic and lacustrine sediments in the Kashmir Valley, India Acta Geologica Academiae Scientiarum Hungaricae 22, 185196 Google Scholar
Bhatt, D.K., (1982). A review of the stratigraphy of the Karewa Group (Pliocene/Quaternary), Kashmir Man and Environment 6, 4655 Google Scholar
Bhatt, D.K. Chatterji, A.K., (1976). An appraisal of field observations on the geology of Plio-Pleistocene Karewa Group and more recent Quaternary deposits of Kashmir Valley Proc., 6th Indian Coll. Micropaleont Strat. 1121 New Delhi Google Scholar
Bronger, A., (1966). Lösse, ihre Verbraunungszonen und fossilen Böden-ein Beitrag zur Stratigraphie des oberen Pleistozäns in Südbaden Schriften des Geograph. Instituts d. Universität Kiel 25/2, 1113 Google Scholar
Bronger, A. (1969/1970). Zur Mikromorphogenese und zum Tonmineralbestand quartärer Lößböden in Südbaden Geoderma 3, 281320 CrossRefGoogle Scholar
Bronger, A., (1975). Paläoböden als Klimazeugen—dargestellt an Lößböden—Abfolgen des Karpatenbeckens Eiszeitalter und Gegenwart 26, 131154 Google Scholar
Bronger, A., (1976). Zur quartären Klima- und Landschaftsentwicklung des Karpatenbeckens auf paläopedologischer und bodengeographischer Grundlage Kieler Geographische Schriften 45, 1268 Google Scholar
Bronger, A., (1978). Climatic sequences of steppe soils from eastern Europe and the USA with emphasis on the genesis of the “argillic horizon” Catena 5, 3351 CrossRefGoogle Scholar
Bronger, A., (1979). Zur Struktur und Genese der Bodendecke der Great Plains der USA: Ein Überblick Kieler Geographische Schriften 50, 471490 Google Scholar
Bronger, A. Heinkele, Th., (1985). Tonverlagerung in Böden mit einem “xeric” Bodenwasserhaushalt? Mitteilungen der Deutschen Bodenkundl. Gesellschaft 43, 719724 Google Scholar
Bronger, A. Pant, R.K., (1985). Micromorphology and Genesis of Paleosols of Some Selected Loess Profiles in the Kashmir Valley and Their Relevance to Stratigraphy and Paleoclimate: Current Trends in Geology Vol. VI, 131140 New Delhi Google Scholar
Burbank, D.W., (1983). The chronology of intermontane-basin development in the north-western Himalaya and the evolution of the northwest syntaxis Earth and Planetary Science Letters 64, 7792 CrossRefGoogle Scholar
Burbank, D.W. Johnson, G.D., (1982). Intermontane-basin development in the past 4 myr in the north-west Himalaya Nature (London) 298, 432436 CrossRefGoogle Scholar
Gupta, Das, (1982). National Atlas of India Vol. 3, Calcutta Google Scholar
Debenham, N.C., (1985). Use of U.V. emissions in TL dating of sediments Nuclear Tracks and Radiation Measurements 10, 4–6 717724 CrossRefGoogle Scholar
Debenham, N.C. Walton, A.J., (1983). TL properties of some wind blown sediments PACT Journal 9, 531538 Google Scholar
De Terra, H. Paterson, T.T., (1939). Studies on the Ice Age in India and Associated Human Cultures Carnegie Institute 1354 Washington, DC Google Scholar
Ermlich, C., (1986). Zur mittel-und jungpleistozänen Klima-und Landschaftsentwicklung des Kashmir Valley: Untersuchungen an Löß-Paläoboden-Sequenzen Diplomarbeit Kiel (unpublished) Google Scholar
FAO-UNESCO (1974). Soil Map of the World Vol. 1, 2123 Google Scholar
Heinkele, Th., (1986). Zur holozänen Landschaftsentwicklung der Löß-Plateaus im Kashmir Valley auf bodengeographischer Grundlage Diplomarbeit Kiel (unpublished) Google Scholar
Krishnamurthy, R.V. Bhattacharya, S.K. Pant, R.K. De Niro, M.J., (1985). Stable Carbon Isotope Ratios of Paleosols and Their Paleoecological Implications: Current Trends in Geology Vol. VI, 147150 New Delhi Google Scholar
Krishnamurthy, R.V. De Niro, M.J. Pant, R.K., (1982). Isotope evidence for Pleistocene climatic changes in Kashmir, India Nature (London) 298, 640641 CrossRefGoogle Scholar
Mather, J.R., (1964). Average Climatic Water Balance Data of the Continents Vol. 17, C. W. Thornthwaite Assoc. Lab. Climatol. Publ Nos. 1–3 Google Scholar
Pant, R.K. Agrawal, D.P. Krishnamurthy, R.V., (1978). Whalley, W.B. Scanning Electron Microscope and Other Studies on the Karewa Beds of Kashmir India: Scanning Electron Microscopy in the Study of Sediments Norwich (Geo-Abstracts) 275282 Google Scholar
Pant, R.K. Krishnamurthy, R.V. Tandon, S.K. Bisht, K., (1985). Loess Lithostratigraphy of the Kashmir Basin, India: Current Trends in Geology Vol. VI, 123129 New Delhi Google Scholar
Rajaguru, S.N. Kaul, K. Kajale, M.D., (1983). Comparative Geomorphology of Some Loess-like Deposits in India National Symposium on Central Asia and Western Himalaya, Srinagar. (Abstracts) Google Scholar
Shackleton, N.J. Opdyke, N.D., (1973). Oxygen isotope and paleomagnetic stratigraphy of Equatorial Pacific Core V 28–238: Oxygen isotope temperatures and ice volumes on a 105 year and 106 year scale Quaternary Research 3, 3955 CrossRefGoogle Scholar
Singhvi, A.K. Bronger, A. Pant, R.K. Sauer, W., (1987). Thermoluminescence Dating and Its Implications on the Chronostratigraphy of Loess-Paleosol Sequences in the Kashmir Valley (India) Vol. VI, No. 1 Isotope Geoscience Google Scholar
Singhvi, A.K. Mejdahl, V., (1985). Thermoluminescence dating of sediments Nuclear Tracks and Radiation Measurements 10, 1–2 137161 CrossRefGoogle Scholar
Soil Survey Staff (1975). Soil Taxonomy Agriculture Handbook No. 436, Washington, DC Google Scholar
Wilding, L.P. Smeck, N.E. Hall, G.F., (1983). Glossary of Horizon Designations: Pedogenesis and Soil Taxonomy Vol. 2, Elsevier Amsterdam 383387 Google Scholar