193
samples, were determined. Potassium (K) in the sediments was measured by flame
photometer. Characteristic OSL data depicting the shine-down curve, growth curve
and palaeodose distribution of sample LM-7 is presented in Fig. 1c.
3 Results and Discussion
3.1 Valley Morphology and Distribution of Quaternary
Landforms
The Yamuna River Valley along the stretch from the Higher Himalayas (north of
MCT) upto southward extent of Lesser Himalayas (upto MBT) near Hathiyari
Village, exhibits variable morphology of (i) deeply entrenched (gorge) and narrow
V-shaped valley in upper reaches (upto Kuthnaur village: north of MCT) and (ii)
Fig. 1c OSL signal data of sample LM-2 showing (i) Shine-down of natural OSL signal; (ii)
Growth curve for single aliquot regeneration doses (SAR protocol); and (iii) Equivalent dose distribution. The data shows the well-bleached nature of quartz
Responses of Indian Summer Monsoon Dynamics and Late Quaternary Fluvial…
samples, were determined. Potassium (K) in the sediments was measured by flame
photometer. Characteristic OSL data depicting the shine-down curve, growth curve
and palaeodose distribution of sample LM-7 is presented in Fig. 1c.
3 Results and Discussion
3.1 Valley Morphology and Distribution of Quaternary
Landforms
The Yamuna River Valley along the stretch from the Higher Himalayas (north of
MCT) upto southward extent of Lesser Himalayas (upto MBT) near Hathiyari
Village, exhibits variable morphology of (i) deeply entrenched (gorge) and narrow
V-shaped valley in upper reaches (upto Kuthnaur village: north of MCT) and (ii)
Fig. 1c OSL signal data of sample LM-2 showing (i) Shine-down of natural OSL signal; (ii)
Growth curve for single aliquot regeneration doses (SAR protocol); and (iii) Equivalent dose distribution. The data shows the well-bleached nature of quartz
Responses of Indian Summer Monsoon Dynamics and Late Quaternary Fluvial…