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  • 2015-2019  (14)
  • 1
    Call number: 9/M 07.0421(462)
    In: Geological Society Special Publication
    Description / Table of Contents: Abstract The Himalaya mountains contain not only one of the largest concentrations of ice outside the polar regions, but contribute to the hydrological requirements of large populations spread over seven nations. The exceptionally high elevations of this low-latitude cryosphere presents a natural laboratory and archives to study climate–tectonics interactions as well as regional v. global climate influences. The existing base-level data on the Himalayan cryosphere are highly variable. Several climate fluctuations occurred during the late Quaternary (MIS1–MIS5, especially the last c. 100 ka), which led to the evolution of the Himalayan landscape. Detailed studies of these archives, along with those of the present cryosphere and related hydrosphere, are essential for understanding the controls on present and future hydrology of the glacial-fed mountain rivers. This volume, a follow-up of the XII International Symposium on Antarctic Earth Science, Goa (A SCAR symposium), provides new data from locales spread over the entire Himalaya region and from Tibet. It provides a glimpse of the late Quaternary cryosphere, as well as a discussion in the last section on sustainability in the context of geohazard mitigations as well as the hydrological budget.
    Type of Medium: Monograph available for loan
    Pages: 210 Seiten , Illustrationen, farbige Abbildungen
    ISBN: 9781786203243
    Series Statement: Geological Society Special Publication 462
    Classification:
    Regional Geology
    Language: English
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Keywords: Himalaya ; cryosphere ; glaciology
    Description / Table of Contents: The Himalayan cryosphere: past and present variability of the ‘third pole’ / N. C. Pant, Rasik Ravindra, Deepak Srivastava and Lonnie Thompson / Geological Society, London, Special Publications, 462, 1-6, 27 April 2018, https://doi.org/10.1144/SP462.13 --- The Past --- Global-scale abrupt climate events and black swans: an ice-core-derived palaeoclimate perspective from Earth's highest mountains / Lonnie G. Thompson, Ellen Mosley-Thompson, Mary E. Davis, Stacy E. Porter, Donald V. Kenny and Ping-Nan Lin / Geological Society, London, Special Publications, 462, 7-22, 29 September 2017, https://doi.org/10.1144/SP462.6 --- Formation and breaching of two palaeolakes around Leh, Indus valley, during the late Quaternary / S. A. I. Mujtaba, Ravish Lal, H. S. Saini, Pawan Kumar and N. C. Pant / Geological Society, London, Special Publications, 462, 23-34, 29 September 2017, https://doi.org/10.1144/SP462.3 --- Depth profiling and recessional history of the Hamtah and Parang glaciers in Lahaul and Spiti, Himachal Pradesh, Indian Himalaya / A. K. Swain, M. A. Mukhtar, Z. Majeed and S. P. Shukla / Geological Society, London, Special Publications, 462, 35-49, 1 November 2017, https://doi.org/10.1144/SP462.11 --- Geomorphic evolution of glacier-fed Baspa Valley, NW Himalaya: record of Late Quaternary climate change, monsoon dynamics and glacial fluctuations / S. Dutta, S. A. I. Mujtaba, H. S. Saini, R. Chunchekar and P. Kumar / Geological Society, London, Special Publications, 462, 51-72, 29 September 2017, https://doi.org/10.1144/SP462.5 --- The Present --- A precipitation perspective of the Hydrosphere-cryosphere interaction in the Himalaya / Abul Amir Khan, N. C. Pant, Rasik Ravindra, Apurva Alok, Manika Gupta and Shikha Gupta / Geological Society, London, Special Publications, 462, 73-87, 9 October 2017, https://doi.org/10.1144/SP462.2 --- Development of an operational algorithm for estimating snow-cover fraction / K. V. Mitkari, M. K. Arora, V. D. Mishra, H. S. Gusain and N. K. Gupta / Geological Society, London, Special Publications, 462, 89-98, 29 September 2017, https://doi.org/10.1144/SP462.7 --- Mass-balance modelling of Gangotri glacier / A. Agrawal, R. J. Thayyen and A. P. Dimri / Geological Society, London, Special Publications, 462, 99-117, 29 September 2017, https://doi.org/10.1144/SP462.1 --- Annual cycle of temperature and snowmelt runoff in Satluj River Basin using in situ data / Sarita Tiwari, Sarat C. Kar, R. Bhatla and R. Bansal / Geological Society, London, Special Publications, 462, 119-138, 29 September 2017, https://doi.org/10.1144/SP462.4 --- Temporal variations in snow albedo at glaciated upper elevation zone of an Eastern Himalayan river basin / N. Chiphang, P. Mishra, A. Bandyopadhyay and A. Bhadra / Geological Society, London, Special Publications, 462, 139-154, 28 September 2017, https://doi.org/10.1144/SP462.8 --- Wintertime surface energy balance of a high-altitude seasonal snow surface in Chhota Shigri glacier basin, Western Himalaya / Mohd Soheb, Alagappan Ramanathan, Arindan Mandal, Thupstan Angchuk, Naveen Pandey and Som Dutta Mishra / Geological Society, London, Special Publications, 462, 155-168, 29 September 2017, https://doi.org/10.1144/SP462.10 --- Sustainability --- Earth surface processes and landscape evolution in the Himalaya: a framework for sustainable development and geohazard mitigation / Lewis A. Owen / Geological Society, London, Special Publications, 462, 169-188, 28 September 2017, https://doi.org/10.1144/SP462.9 --- The sustainability of water resources in High Mountain Asia in the context of recent and future glacier change / Ann V. Rowan, Duncan J. Quincey, Morgan J. Gibson, Neil F. Glasser, Matthew J. Westoby, Tristram D. L. Irvine-Fynn, Phillip R. Porter and Michael J. Hambrey / Geological Society, London, Special Publications, 462, 189-204, 1 November 2017, https://doi.org/10.1144/SP462.12
    Pages: Online-Ressource (210 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 9781786203243
    Language: English
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  • 3
    Publication Date: 2017-08-23
    Description: Extract Perhaps the most important advance in our knowledge of the Precambrian Earth over the last three decades has been the general consensus on the episodic nature of the amalgamation and dispersal of supercontinents (e.g. Rogers 1996; Condie & Aster 2010; Nance et al. 2014). The Precambrian history of the Earth is thought to be punctuated by the assembly and breakdown of at least three supercontinents: Columbia (Nena), Rodinia and Gondwana (Fig. 1; e.g. McMenamin & McMenamin 1990; Rogers & Santosh 2002; Meert 2012). ... This 250-word extract was created in the absence of an abstract.
    Print ISSN: 0305-8719
    Electronic ISSN: 2041-4927
    Topics: Geosciences
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  • 4
    Publication Date: 2017-09-30
    Description: Records of fluctuations of the East Antarctic Ice Sheet (EAIS) are best preserved in proximal marine sediments. The examined section is a part of a drillcore at Site U1359 of IODP (Integrated Oceanic Drilling Program) 318 located at the eastern levee of Jussieau submarine channel off the coast of Wilkes Land. Drillcore U1359 from 200 m below seafloor (mbsf) to 600 mbsf represents samples from Mid-Miocene to Late Miocene. Heavy media separation, characterization of heavy minerals and quantification of their population were carried out using scanning electron microscopy and electron microprobe analysis. Relative abundance of various minerals at different depths revealed that amphiboles and pyroxene show antipathic relationship at some depths. Multiple sources for supply of sediments at drillhole Site U1359 have been proposed with both magmatic and metamorphic minerals and rock fragments contributing clastic sediments. Factor analysis was carried out to test this inference. Six factors were obtained out of which the first three explain 76.6% of the variance. Relating variability of the factors to the provenance allows inference of four major ice advance phases during Mid to Late Micene which are largely positively correlatable with the global climate record. Supplementary material: Table showing the linear relationship between the rows and columns of the matrix of correlation coefficients of samples is available at https://doi.org/10.6084/m9.figshare.c.3805726
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  • 5
    Publication Date: 2017-10-11
    Description: The hydrological budget of the three major Asian rivers, namely the Indus, the Ganga and the Brahmaputra, is controlled by the Indian monsoon and Westerlies but their contribution in these basins are highly variable. Widely varying average annual precipitation has been reported within these basins. A poor network of in situ rain gauges, particularly in mountainous regions, inaccessible terrain, high variations in altitude and the significantly large size of basins forces adaption of satellite-based average annual precipitation. We investigate precipitation patterns for these three basins by using satellite-based Tropical Rainfall Measuring Mission (TRMM-3B42) data and compare and validate it with Asian Precipitation Highly Resolved Data Integration Towards Evaluation (APHRODITE) and India Meteorological Department (IMD) interpolated gridded precipitation data. The entire basins as well as basinal areas within the geographic limits of India have been considered. Our study shows that the precipitation broadly follows an east–west and north–south gradient control. The easternmost Brahmaputra Basin has the highest amount of precipitation followed by the Ganga Basin, and the westernmost Indus Basin has the least precipitation; precipitation is highest on the higher elevations than compared to lower elevations of the basins. A seasonal- and elevation-based approach is adapted to estimate snow precipitation and is discussed in terms of overall precipitation.
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  • 6
    Publication Date: 2017-10-05
    Description: Of the several types of Quaternary deposits formed by glacial, alluvial and mass-wasting processes, with vast climatic and tectonic significance lake deposits stand out prominently in the Indus valley around the town of Leh. We studied a number of palaeolake deposits between the Zinchan–Indus confluence and Shey village and carried out optically stimulated luminescence (OSL) quartz dating of samples from critical sections. Our results indicate that, during the late Quaternary, the Indus River was dammed at least twice in the narrow gorge downstream of Spituk Gompa, forming a reservoir up to 35 km long in which 20–68 m thick sediments were deposited under fluvial and lacustrine environments. During the older phase, the Indus was blocked by debris of moraines/landslides in the narrow zone near the Zinchan–Indus confluence. The resulting lake existed between c. 125 ± 11 and 87 ± 8 ka during marine isotopic stage (MIS) 5. No evidence of damming material is preserved. Present-day elevations of lake deposits suggest a possible extension of the lake up to Ranbirpura upstream. After the lake breach, the Indus River was again dammed near Phey village by the advancing alluvial fan of the Phyang River. This lake, extending up to Karu, formed at c. 79 ± ka. The lake existed in this phase during c. 72–49 ka, during cold-stage MIS-4. The lake was breached after c. 46 ± 3 ka, however.
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  • 7
    Publication Date: 2018-04-29
    Description: Extract The Tibetan Plateau and the Himalaya, which comprise a major portion of the region often referred to as the ‘third pole’, contain the largest surface area of the cryosphere outside the polar regions (Fig. 1). Unlike in other domains, glacier melting in this region is complex and highly variable. The glaciers in the western part of the region, dominated by the Karakoram and Western Himalaya, are either advancing or retreating relatively slowly, whereas the glaciers in the monsoon-dominated Eastern and Central Himalaya are retreating at a faster rate (Fig. 1). ... This 250-word extract was created in the absence of an abstract.
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  • 8
    Publication Date: 2017-04-15
    Description: The 600–660 Ma East African Orogen (EAO) granulites of the Mozambique Belt were correlated and extended into a coast marginal area of East Antarctica through the NNW–SSW-trending granulite-bearing Schirmacher Oasis. Tracing similarities in lithological association, granulite-facies metamorphism and geochronological data, the 640 Ma EAO was extended by another 110 km south of Schirmacher into the Humboldt Mountains in central Dronning Maud Land (cDML). Based on younger anorogenic magmatism east and west of the Humboldt Mountains, a 10–20 km-wide linear corridor of the EAO from the Schirmacher to the Humboldt Mountains was proposed. There are eight nunataks between Schirmacher and the Humboldt Mountains projected above the ice sheet. These nunataks are strategically placed because they represent the small (4–10 km 2 ), isolated rock exposures in approximately 5000 km 2 of ice-covered area. Baalsrudfjellet is one of these nunataks that is located at the easternmost margin of the proposed EAO corridor and represents a significant outcrop to validate the presence of the EAO between Schirmacher and the Humboldt Mountains. This study brings out a two-stage metamorphic evolution ( c. 660–680 Ma and c. 580 Ma) with melt generation associated with the younger event. Geochronological constraints by monazite chemical dating from metapelites confirm and validate the continuation of the EAO in-between the Schirmacher Oasis and the Humboldt Mountains. Supplementary material: Monazite analyses, computed ages and age errors of three grains from the high- and low-melt metapelite are available at https://doi.org/10.6084/m9.figshare.c.3738362
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  • 9
  • 10
    Publication Date: 2017-10-09
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