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Wadhawan, Sudesh K.
- Morphostratigraphy and Palaeoclimate Appraisal of the Leh Valley, Ladakh Himalayas, India
Abstract Views :191 |
PDF Views:1
Authors
Dhananjay A. Sant
1,
Sudesh K. Wadhawan
2,
Rajinder K. Ganjoo
3,
Nathani Basavaiah
4,
Prabhin Sukumaran
1,
Sourabh Bhattacharya
5
Affiliations
1 Department of Geology, Maharaja Sayajirao University of Baroda, Vadodara - 390 002, IN
2 Geological Survey of India, Desert and Environmental Geology Division, Jaipur - 302 004, IN
3 Department of Geology, University of Jammu, Jammu - 180 006, IN
4 Indian Institute of Geomagnetism, Plot 5, Sector 18, Kalamboli, New Panvel (W), Navi Mumbai - 410 218, IN
5 Department of Geology and Geophysics, IIT Kharagpur - 721 302, IN
1 Department of Geology, Maharaja Sayajirao University of Baroda, Vadodara - 390 002, IN
2 Geological Survey of India, Desert and Environmental Geology Division, Jaipur - 302 004, IN
3 Department of Geology, University of Jammu, Jammu - 180 006, IN
4 Indian Institute of Geomagnetism, Plot 5, Sector 18, Kalamboli, New Panvel (W), Navi Mumbai - 410 218, IN
5 Department of Geology and Geophysics, IIT Kharagpur - 721 302, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 6 (2011), Pagination: 499-510Abstract
In the present paper we study morphology, occurrence and mutual interrelationship of erosional (amphitheaters) and depositional landforms belonging to glacial (moraines), fluvio-glacial (glacial out wash), mass wasting (alluvial fans), aeolian (obstacle dune and sand sheets) and lacustrine (palaeo-lake sediments) processes within the Leh valley. These landforms are the geomorphic expression of past deglaciation grouped into five Formative Stages of Landform (FSL 1 to FSL 5) development in the Leh valley. The broad age bracket for the formative stages are based on the empirical relationship of the landforms, available chronology and their correlation with comparable climate phases. The retreat of glaciers in the Leh valley, along the southern slopes of Ladakh hill range and their retention over the northern slopes and Karakoram is further explained.Keywords
Leh Valley, Ladakh Himalayas, Geomorphology, Climate Change, Snow Accumulation Zone, Westerlies.
- Linkage of Paraglacial Processes from Last Glacial to Recent Inferred from Spituk Sequence, Leh Valley, Ladakh Himalaya
Abstract Views :170 |
PDF Views:0
Authors
Dhananjay A. Sant
1,
Sudesh K. Wadhawan
2,
Rajinder K. Ganjoo
3,
Nathani Basavaiah
4,
Prabhin Sukumaran
1,
Sourabh Bhattacharya
5
Affiliations
1 Department of Geology, Maharaja Sayajirao University of Baroda, Vadodara - 390 002, IN
2 Geological Survey of India, Desert and Environmental Geology Division, Jaipur - 302 004, IN
3 Department of Geology, University of Jammu, Jammu - 180 006, IN
4 Indian Institute of Geomagnetism, Plot 5, Sector 18, Kalamboli, New Panvel (W), Navi Mumbai - 410 218, IN
5 Department of Geology and Geophysics, Indian Institute of Technology Kharagpur - 721 302, IN
1 Department of Geology, Maharaja Sayajirao University of Baroda, Vadodara - 390 002, IN
2 Geological Survey of India, Desert and Environmental Geology Division, Jaipur - 302 004, IN
3 Department of Geology, University of Jammu, Jammu - 180 006, IN
4 Indian Institute of Geomagnetism, Plot 5, Sector 18, Kalamboli, New Panvel (W), Navi Mumbai - 410 218, IN
5 Department of Geology and Geophysics, Indian Institute of Technology Kharagpur - 721 302, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 78, No 2 (2011), Pagination: 147-156Abstract
The paraglacial sequence in the Leh valley, Ladakh Himalaya preserves imprints of various processes active during deglaciation in the late phase of Last Glacial. In present work, a high resolution sedimentological record generated for Spituk is presented identifying aeolian episodes, mudflow events from Ladakh Range and debris flows extending from Zanskar Range across present Indus River. Two temporal phases of water ponding within Spituk Sequence are also identified. The seismites recorded at various stratigraphic depths and their association with the sediment facies signifies gravity induced process besides possible seismic activity as an added phenomena. Linkage between paraglacial processes since Last Glacial to Recent is tracked and evaluated.Keywords
Paraglacial, Soft-Sediment Deformation Structures, Leh, Spituk, Ladakh Himalaya.References
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