Luminescence chronology and climatic implication of the late quaternary glaciation in the Nubra valley, Karakoram Himalaya, India

Ganju, Ashwagosha; Nagar, Y.C.; Sharma, L. N.; Sharma, Shubhra; Juyal, Navin

doi:10.1016/j.palaeo.2018.04.022

Cited by 37 publications

(40 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The drowned coral reefs and the sedimentary sequences from deltas and estuaries suggest that meltwater pulses from the large Northern Hemisphere, as well as Antarctic ice sheets, had largely ceased by ~7 ka (Blanchon and Shaw, 1995; Lambeck, et al, 2002; Hori and Saito 2007; Harris et al, 2008). However, studies suggest that during the Mid-Holocene, a phase of deglaciation was witnessed in the upper Indus River basin (Sharma et al, 2016; Ganju et al, 2018; Sharma and Shukla, 2018), which added a meltwater pulse from the Himalayan cryosphere. Therefore, we suggest that the observed RSL high stand during the Mid-Holocene has a large contribution from the increased glacial melt from the upper Indus basin in addition to the marginal contribution from the northern ice sheets during the Mid-Holocene.…”

Section: Discussionmentioning

confidence: 99%

Causes and implications of Mid- to Late Holocene relative sea-level change in the Gulf of Kachchh, western India

et al. 2020

Self Cite

View full text Add to dashboard Cite

The relict intertidal deposits from the Kharod River Estuary, Gulf of Kachchh, and the distal end of Kori Creek are used to infer the Mid- to Late Holocene relative sea-level (RSL) change in western India. Employing sedimentology, geochemistry, palynology, ichnology, and optical and radiocarbon dating, the study suggests the dominance of fluvial activity between 16.5 ± 1.6 and 9.9 ± 0.7 ka. After ~7 ka (7.3 ± 0.4, 6.8 ± 0.5 ka), the sea level showed a positive tendency until 4.7 ± 0.2 ka. The tectonically corrected Mid-Holocene RSL change is estimated as 1.45 ± 0.33 m between ~7 and ~5 ka. The study suggests that the Mid-Holocene RSL high was due to the meltwater contribution from the Himalayan cryosphere, with subordinate contribution from glacio-isostatic adjustment and crustal subsidence. The Late Holocene tectonically corrected RSL change at ~1 ka (1.1 ± 0.1 ka and 1045 ± 175 cal yr BP) is estimated as 0.53 ± 0.43 m. This is ascribed to monsoon wind-driven tidal ingression that might have affected the tidal amplitude positively. The study suggests that the Mid-Holocene RSL change did not play a deterministic role in the abandonment of the Harappan coastal settlements.

show abstract

Section: Discussionmentioning

confidence: 99%

Causes and implications of Mid- to Late Holocene relative sea-level change in the Gulf of Kachchh, western India

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The evidence of past glaciations is manifested by the presence of huge lateral moraines present along the valley flanks that extend to tens of kilometers downstream of present-day glacier snout. Chronology of the glacier moraines along Nubra valley advocate for a major trunk valley glaciation during MIS-4, when the valley was occupied by ~ 700 m thick glacier that extended up to Nubra-Shyok confluence (Ganju et al 2018). Besides the lateral moraines, outwash gravel terraces, relict as well as active fan deposits, sand dunes, relict lake sediments and braided river channel in the wider valley settings are also observed.…”

Section: Study Areamentioning

confidence: 96%

“…The region approximately marks the maximum extent of Indian summer monsoon precipitation (ISMR) and is dominantly influenced by the midlatitude westerly that account for two-third of the annual precipitation (Hewitt 1999;Ding and Liu 1992;Richardson and Reynolds 2000;Bhutiyani et al 2010). The region experiences a hyperarid climate with mean annual precipitation of ~ 150 mm (Ganju et al 2018;Bhutiyani et al 2007). The two main rivers, i.e., Nubra and Shyok (snout at 77°11′53.169″E, 35°12′33.243″N, and 77°36′55.094″E, 35°21′13.937″N, respectively) originate from Siachin and Rimo group of glaciers, respectively.…”

Section: Study Areamentioning

confidence: 99%

Lake Inventory and Evolution of Glacial Lakes in the Nubra-Shyok Basin of Karakoram Range

et al. 2019

View full text Add to dashboard Cite

The trends of glacier lake evolution during the past few decades and their future development are still not well understood. The aim of the present study is to investigate the growth and changes in moraine and bed rock dammed glacier lakes of the Nubra and Shyok basin, Karakoram Range using multi-temporal satellite images. The glacier lake inventory is based on Landsat 7 and 8 (15 m spatial resolution), and Sentinels 2A (10 m spatial resolution) satellite imageries. The data revealed that during the years 2002-2017, the number of glacial lakes increased from 215 to 255. The glacial lake area also increased from ~ 9.0 km 2 in 2003 to ~ 9.36 km 2 in 2013 and ~ 11.27 km 2 in 2017. During 2002-2017, the lake area increased by ~ 2.27 km 2 , out of which ~ 1.9 km 2 increase is recorded between 2013 and 2017 accounts for almost 84% of the total increase. The lakes with an area of ≥ 0.2 km 2 have been considered for glacial lake outburst flood (GLOF) susceptibility studies and volume estimation. Analyses of the data show a progressive increase in number of glacial lakes and their areal extent. This study would help planners to minimize the adverse effects of GLOF in the Nubra-Shyok basin.

show abstract

“…Contrary to this, in the monsoon-dominated central Himalaya, the existing paleoclimatic data suggest fluctuating lake levels throughout the Holocene, and the majority of the records with reasonable chronologies advocate for a gradual intensification of the ISM (punctuated by dry spells) since the mid-Holocene (Rühland et al, 2006; Kotlia and Joshi, 2013; Sanwal et al, 2013; Rawat et al, 2015; Bali et al, 2017; Bhushan et al, 2018; Srivastava et al, 2018). Interestingly, the NW Himalaya (Zanskar, Ladakh) has been and continues to be influenced by both the ISM and the mid-latitude westerlies throughout the late Quaternary (Benn and Owen, 1998; Owen and Dortch, 2014; Mishra et al, 2015; Ganju et al, 2018; Sharma et al, 2018), and recently a water isotope-based study by Sharma and colleagues (2017) reported a significant contribution of ISM precipitation in the upper Indus catchment. However, the hydroclimatic conditions and the geographical extent of the ISM influence in the NW Himalaya is still being debated (Owen and Dortch, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…(a) The regional setup of the area along with the trajectories of weather systems—the summer monsoon and the mid-latitude westerlies. The white dots show important terrestrial palaeoclimatic sites that have been discussed in this paper including (1) the Penzi-la (yellow circle; present study), (2) Ali et al, 2018, (3) Bhushan et al, 2018, (4) Srivastava et al, 2018, (5) Rühland et al, 2006, (6) Kotlia and Joshi, 2013, (7) Sanwal et al, 2013, (8) Bali et al, 2017, (9) Rawat et al, 2015, (10) Sinha et al, 2007, (11) Wünnemann et al, 2010, (12) Mishra et al, 2015, (13) Leipe, Demske, and Tarasov, 2014, (14) Kotlia et al, 2015, (15) Sharma et al, 2018, (16) Sharma and Shukla, 2018, (17) Ganju et al, 2018, (18) Lee et al, 2014, (19) Kumar et al, 2019, (20) Sarkar et al, 2015, (21) Kumar et al, 2019, (22) Kathayat et al, 2017, (23) Dixit et al, 2014, (24) Dixit et al, 2018, (25) Dutt et al, 2015, (26) Prasad et al, 2014, and (27) Rühland et al, 2006. (b) The cumulative annual rainfall (mm) map of the western Himalaya (after Juyal, 2014).…”

Section: Introductionmentioning

confidence: 99%

Holocene hydroclimatic variability in the Zanskar Valley, Northwestern Himalaya, India

et al. 2020

View full text Add to dashboard Cite

A 1.3-m-long sediment core from the Penzi-la pass, Zanskar Valley, provides a record of hydroclimatic conditions and abrupt climate changes over short time scales since the mid-Holocene. These climatic changes of centennial time scale are crucial to understanding the hydroclimatic variability in northwestern (NW) Himalaya. Relatively higher δ13C values complemented by total organic carbon, loss on ignition, grain size parameters, and lower Rubidium/Strontium ratios during the Late Northgrippian imply that the area had a dry climate during the period from ~6200–4500 cal yr BP. Subsequently, a relatively stable hydroclimatic environment was experienced between ~4500 and 3400 cal yr BP. After ~3400 cal yr BP the multiproxy data show gradual strengthening of hydroclimatic conditions, however, this trend is interrupted by high-amplitude abrupt reversals (dry events) with a stepwise decreasing intensity at ~3300, 2600, 1700, and 400 cal yr BP. The two most important climatic events of the last millennia (i.e., Medieval Climate Anomaly and the Little Ice Age) were also recorded from the sedimentary archive. Overall, our data show a progressive increase in the moisture availability in the Zanskar Valley and are in agreement with the late Holocene climatic trends of central and western Himalaya.

show abstract

Luminescence chronology and climatic implication of the late quaternary glaciation in the Nubra valley, Karakoram Himalaya, India

Cited by 37 publications

References 63 publications

Causes and implications of Mid- to Late Holocene relative sea-level change in the Gulf of Kachchh, western India

Causes and implications of Mid- to Late Holocene relative sea-level change in the Gulf of Kachchh, western India

Lake Inventory and Evolution of Glacial Lakes in the Nubra-Shyok Basin of Karakoram Range

Holocene hydroclimatic variability in the Zanskar Valley, Northwestern Himalaya, India

Contact Info

Product

Resources

About