2023
DOI: 10.1029/2023jf007216
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10Be Exposure Age Dating of Moraine Boulders and Glacially Polished Bedrock Surfaces in Karakoram and Ladakh Ranges, NW Himalaya: Implications in Quaternary Glaciation Studies

Partha Sarathi Jena,
Ravi Bhushan,
Shubhra Sharma
et al.

Abstract: Terrestrial cosmogenic nuclide (TCN) dating has emerged as one of the most useful techniques in the last two decades for quantifying geomorphological processes and building the chronology of late Quaternary glacial advances/retreats. The chronology based on TCN and optically stimulated luminescence (OSL) dating of glacial landforms from the northwestern (NW) Himalaya suggests that glaciers responded to a complex interaction between temperature and moisture essentially derived from either of the climate systems… Show more

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“…An important application is the dating of glacially transported boulders to constrain the timing of deglaciation. Multiple published datasets for boulders on moraines show a wide range of TCN concentrations (Applegate et al, 2012, Larsen et al, 2021, Çiner et al, 2017, Jena et al, 2023), indicating that the deglaciation signal is complicated by noise, or ‘geological uncertainty’ (Balco, 2011). Common sources of noise in boulder populations in glaciated terrains include inherited exposure (Putkonen and Swanson, 2003) and reworking (Ivy‐Ochs and Kober, 2008).…”
Section: Introductionmentioning
confidence: 99%
“…An important application is the dating of glacially transported boulders to constrain the timing of deglaciation. Multiple published datasets for boulders on moraines show a wide range of TCN concentrations (Applegate et al, 2012, Larsen et al, 2021, Çiner et al, 2017, Jena et al, 2023), indicating that the deglaciation signal is complicated by noise, or ‘geological uncertainty’ (Balco, 2011). Common sources of noise in boulder populations in glaciated terrains include inherited exposure (Putkonen and Swanson, 2003) and reworking (Ivy‐Ochs and Kober, 2008).…”
Section: Introductionmentioning
confidence: 99%