scholarly journals Supplemental Material: Late Pleistocene–Holocene flood history, flood-sediment provenance and human imprints from the upper Indus River catchment, Ladakh Himalaya

2021 ◽  
Author(s):  
Choudhurimayum Pankaj Sharma ◽  
Pradeep Srivastava
Keyword(s):  
Late Pleistocene ◽  
Growth Curve ◽  
Detrital Zircon ◽  
Sediment Provenance ◽  
Indus River ◽  
River Catchment ◽  
Recovery Test ◽  
Infrared Stimulated Luminescence ◽  
Ladakh Himalaya ◽  
Radial Plot

Figure S1: (A) Infrared Stimulated Luminescence (IRSL) of LD-1818 exhibiting feldspar contamination. (B) IRSL counts of all samples after complete etching including LD-1818 after re-etching. (C) Optical Stimulated Luminescence (OSL) decay curves of all samples; Figure S2: (A) Pre heat test (dotted line represents 220 °C plateau) and (B) Dose recovery test of LD-3170; Figure S3: OSL characteristics of LD-2011. (A) Probably distribution of ED all discs and (B) Sensitivity corrected luminescence growth curve; Figure S4: Radial plot of all OSL samples with ages; Table S1: Elemental, isotopic and age details of detrital zircon U-Pb geochronology of paleoflood deposits.

scholarly journals Supplemental Material: Late Pleistocene–Holocene flood history, flood-sediment provenance and human imprints from the upper Indus River catchment, Ladakh Himalaya

2021 ◽  
Author(s):  
Choudhurimayum Pankaj Sharma ◽  
Pradeep Srivastava
Keyword(s):  
Late Pleistocene ◽  
Growth Curve ◽  
Detrital Zircon ◽  
Sediment Provenance ◽  
Indus River ◽  
River Catchment ◽  
Recovery Test ◽  
Infrared Stimulated Luminescence ◽  
Ladakh Himalaya ◽  
Radial Plot

Figure S1: (A) Infrared Stimulated Luminescence (IRSL) of LD-1818 exhibiting feldspar contamination. (B) IRSL counts of all samples after complete etching including LD-1818 after re-etching. (C) Optical Stimulated Luminescence (OSL) decay curves of all samples; Figure S2: (A) Pre heat test (dotted line represents 220 °C plateau) and (B) Dose recovery test of LD-3170; Figure S3: OSL characteristics of LD-2011. (A) Probably distribution of ED all discs and (B) Sensitivity corrected luminescence growth curve; Figure S4: Radial plot of all OSL samples with ages; Table S1: Elemental, isotopic and age details of detrital zircon U-Pb geochronology of paleoflood deposits.

Late Pleistocene−Holocene flood history, flood-sediment provenance and human imprints from the upper Indus River catchment, Ladakh Himalaya

2021 ◽  
Author(s):  
Choudhurimayum Pankaj Sharma ◽  
Poonam Chahal ◽  
Anil Kumar ◽  
Saurabh Singhal ◽  
YP Sundriyal ◽  
...  
Keyword(s):  
Summer Monsoon ◽  
Asian Summer Monsoon ◽  
Phase Relationship ◽  
Human Migration ◽  
Sediment Provenance ◽  
Indus River ◽  
The Holocene ◽  
Extreme Floods ◽  
Ladakh Himalaya ◽  
Extreme Flood

The Indus River, originating from Manasarovar Lake in Tibet, runs along the Indus Tsangpo suture zone in Ladakh which separates the Tethyan Himalaya in the south from the Karakoram zone to the north. Due to the barriers created by the Pir-Panjal ranges and the High Himalaya, Ladakh is located in a rain shadow zone of the Indian summer monsoon (ISM) making it a high-altitude desert. Occasional catastrophic hydrological events are known to endanger lives and properties of people residing there. Evidence of such events in the recent geologic past that are larger in magnitude than modern occurrences is preserved along the channels. Detailed investigation of these archives is imperative to expand our knowledge of extreme floods that rarely occur on the human timescale. Understanding the frequency, distribution, and forcing mechanisms of past extreme floods of this region is crucial to examine whether the causal agents are regional, global, or both on long timescales. We studied the Holocene extreme flood history of the Upper Indus catchment in Ladakh using slackwater deposits (SWDs) preserved along the Indus and Zanskar Rivers. SWDs here are composed of stacks of sand-silt couplets deposited rapidly during large flooding events in areas where a sharp reduction of flow velocity is caused by local geomorphic conditions. Each couplet represents a flood, the age of which is constrained using optically stimulated luminescence for sand and accelerator mass spectrometry and liquid scintillation counter 14C for charcoal specks from hearths. The study suggests occurrence of large floods during phases of strengthened ISM when the monsoon penetrated into arid Ladakh. Comparison with flood records of rivers draining other regions of the Himalaya and those influenced by the East Asian summer monsoon (EASM) indicates asynchronicity with the Western Himalaya that confirms the existing anti-phase relationship of the ISM-EASM that occurred in the Holocene. Detrital zircon provenance analysis indicates that sediment transportation along the Zanskar River is more efficient than the main Indus channel during extreme floods. Post−Last Glacial Maximum human migration, during warm and wet climatic conditions, into the arid upper Indus catchment is revealed from hearths found within the SWDs.

Sediment provenance, reworking and transport processes in the Indus River by U–Pb dating of detrital zircon grains

2011 ◽  
Vol 76 (1-2) ◽  
pp. 33-55 ◽  
Author(s):  
Anwar Alizai ◽  
Andrew Carter ◽  
Peter D. Clift ◽  
Sam VanLaningham ◽  
Jeremy C. Williams ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
Transport Processes ◽  
Sediment Provenance ◽  
Indus River

Sediment provenance in contractional orogens: The detrital zircon record from modern rivers in the Andean fold-thrust belt and foreland basin of western Argentina

2017 ◽  
Vol 479 ◽  
pp. 83-97 ◽  
Author(s):  
Tomas N. Capaldi ◽  
Brian K. Horton ◽  
N. Ryan McKenzie ◽  
Daniel F. Stockli ◽  
Margaret L. Odlum
Keyword(s):  
Detrital Zircon ◽  
Foreland Basin ◽  
Sediment Provenance ◽  
Thrust Belt

The Organisation of Late Pleistocene Robberg Blade Technology in the Doring River Catchment, South Africa

2018 ◽  
Vol 16 (2) ◽  
pp. 168-192 ◽  
Author(s):  
Marika Low ◽  
Alex Mackay
Keyword(s):  
South Africa ◽  
Late Pleistocene ◽  
Raw Materials ◽  
Local Scale ◽  
Technological Characteristic ◽  
Spatial Organisation ◽  
Hunter Gatherers ◽  
River Catchment ◽  
Rock Types ◽  
Provisioning Strategies

AbstractEmphasis on the production of small unretouched blades is the strongest defining technological characteristic of southern African assemblages referred to as the Robberg – a ‘technologically uniform’ technocomplex identified across the sub-continent. This paper explores the spatial organisation of Robberg blade technology from three rockshelter sites in the Doring River catchment of the eastern Cederberg Mountains. The Doring is both a key source of water and toolstone, and the three sites are located at varying distances from it. Blades and blade cores from these sites are used to explore the influence of distance to source on the abundance of raw materials, staging of production and maintenance/reduction of transported artefacts. Results suggest key differences in procurement and provisioning strategies for different materials. Hunter-gatherers ‘geared up’ with hornfels and silcrete blades at the river before moving up the tributaries where toolkits were supplemented by small numbers of blades made from transported silcrete cores and the situational use of local rock types such as quartz. Results demonstrate the importance of understanding local-scale controls on technological organisation before inferring patterns of broader behavioural import.

Accelerating exhumation in the Eocene North American Cordilleran hinterland: Implications from detrital zircon (U-Th)/(He-Pb) double dating

2019 ◽  
Vol 132 (1-2) ◽  
pp. 198-214 ◽  
Author(s):  
Andrew S. Canada ◽  
Elizabeth J. Cassel ◽  
Daniel F. Stockli ◽  
M. Elliot Smith ◽  
Brian R. Jicha ◽  
...  
Keyword(s):  
North American ◽  
Detrital Zircon ◽  
Sedimentary Basins ◽  
Metamorphic Core Complex ◽  
Crustal Thickening ◽  
Sediment Provenance ◽  
Core Complex ◽  
Extensional Faulting ◽  
Lag Times ◽  
Metamorphic Core

AbstractBasins in orogenic hinterlands are directly coupled to crustal thickening and extension through landscape processes and preserve records of deformation that are unavailable in footwall rocks. Following prolonged late Mesozoic–early Cenozoic crustal thickening and plateau construction, the hinterland of the Sevier orogen of western North America underwent late Cenozoic extension and formation of metamorphic core complexes. While the North American Cordillera is one of Earth’s best-studied orogens, estimates for the spatial and temporal patterns of initial extensional faulting differ greatly and thus limit understanding of potential drivers for deformation. We employed (U-Th)/(He-Pb) double dating of detrital zircon and (U-Th)/He thermochronology of detrital apatite from precisely dated Paleogene terrestrial strata to quantify the timing and magnitude of exhumation and explore the linkages between tectonic unroofing and basin evolution in northeastern Nevada. We determined sediment provenance and lag time evolution (i.e., the time between cooling and deposition, which is a measure of upper-crustal exhumation) during an 8 m.y. time span of deposition within the Eocene Elko Basin. Fluvial strata deposited between 49 and 45 Ma yielded Precambrian (U-Th)/He zircon cooling ages (ZHe) with 105–740 m.y. lag times dominated by unreset detrital ages, suggesting limited exhumation and Proterozoic through early Eocene sediment burial (<4–6 km) across the region. Minimum nonvolcanic detrital ZHe lag times decreased to <100 m.y. in 45–43 Ma strata and to <10 m.y. in 43–41 Ma strata, illustrating progressive and rapid hinterland unroofing in Eocene time. Detrital apatite (U-Th)/He ages present in ca. 44 and 39 Ma strata record Eocene cooling ages with 1–20 m.y. lag times. These data reflect acceleration of basement exhumation rates by >1 km/m.y., indicative of rapid, large-magnitude extensional faulting and metamorphic core complex formation. Contemporaneous with this acceleration of hinterland exhumation, syntectonic freshwater lakes developed in the hanging wall of the Ruby Mountains–East Humboldt Range metamorphic core complex at ca. 43 Ma. Volcanism driven by Farallon slab removal migrated southward across northeastern Nevada, resulting in voluminous rhyolitic eruptions at 41.5 and 40.1 Ma, and marking the abrupt end of fluvial and lacustrine deposition across much of the Elko Basin. Thermal and rheologic weakening of the lithosphere and/or partial slab removal likely initiated extensional deformation, rapidly unroofing deeper crustal levels. We attribute the observed acceleration in exhumation, expansion of sedimentary basins, and migrating volcanism across the middle Eocene to record the thermal and isostatic effects of Farallon slab rollback and subsequent removal of the lowermost mantle lithosphere.

Organochlorine pesticides (OCPs) in the Indus River catchment area, Pakistan: Status, soil–air exchange and black carbon mediated distribution

Chemosphere ◽  
2016 ◽  
Vol 152 ◽  
pp. 292-300 ◽  
Author(s):  
Anam Bajwa ◽  
Usman Ali ◽  
Adeel Mahmood ◽  
Muhammad Jamshed Iqbal Chaudhry ◽  
Jabir Hussain Syed ◽  
...  
Keyword(s):  
Black Carbon ◽  
Organochlorine Pesticides ◽  
Catchment Area ◽  
Indus River ◽  
Soil Air ◽  
River Catchment ◽  
Air Exchange

scholarly journals Luminescence Dating of Fluvial Deposits from the Weser Valley, Germany

2015 ◽  
Vol 42 (1) ◽  
Author(s):  
Julia Roskosch ◽  
Sumiko Tsukamoto ◽  
Manfred Frechen
Keyword(s):  
Late Pleistocene ◽  
Luminescence Dating ◽  
Marine Isotope Stage ◽  
Coarse Grained ◽  
Performance Tests ◽  
Luminescence Signal ◽  
Fluvial Deposits ◽  
Fine Grained ◽  
Infrared Stimulated Luminescence ◽  
Off Time

Abstract Luminescence dating was applied on coarse-grained monomineralic potassium-rich feld-spar and polymineralic fine-grained minerals of five samples derived from fluvial deposits of the Riv-er Weser in northwestern Germany. We used a pulsed infrared stimulated luminescence (IRSL) single aliquot regenerative (SAR) dose protocol with an IR stimulation at 50°C for 400 s (50 μs on-time and 200 μs off-time). In order to obtain a stable luminescence signal, only off-time IRSL signal was rec-orded. Performance tests gave solid results. Anomalous fading was intended to be reduced by using the pulsed IRSL signal measured at 50°C (IR50), but fading correction was in most cases necessary due to moderate fading rates. Fading uncorrected and corrected pulsed IR50 ages revealed two major fluvial aggradation phases during the Late Pleistocene, namely during marine isotope stage (MIS) 5d (100 ± 5 ka) and from late MIS 5b to MIS 4 (77 ± 6 ka to 68 ± 5 ka). The obtained luminescence ages are consistent with previous 230Th/U dating results from underlying interglacial deposits of the same pit, which are correlated with MIS 7c to early MIS 6.

Geochronology, sediment provenance, and fossil emplacement at Sumidouro Cave, a classic late Pleistocene/early Holocene Paleoanthropological site in eastern Brazil

2005 ◽  
Vol 20 (8) ◽  
pp. 751-764 ◽  
Author(s):  
Luís B. Piló ◽  
Augusto S. Auler ◽  
Walter A. Neves ◽  
Xianfeng Wang ◽  
Hai Cheng ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Early Holocene ◽  
Sediment Provenance ◽  
Eastern Brazil
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