Morphostratigraphy and palaeoclimate appraisal of the Leh valley,Ladakh Himalayas,India |
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| Authors: | Dhananjay A. Sant Sudesh K. Wadhawan Rajinder K. Ganjoo Nathani Basavaiah Prabhin Sukumaran Sourabh Bhattacharya |
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| Affiliation: | (1) CSIR Centre for Mathematical Modelling and Computer Simulation (C-MMACS), Bangalore, 560037, India;(2) Indian Institute of Astrophysics, Bangalore, India;(3) G B Pant Institute of Himalayan Environment and Development, Almora, India |
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| Abstract: | 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. |
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