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Готові списки джерел за темами / Last glaciation (MIS3 à 2) / Статті в журналах

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Last glaciation (MIS3 à 2).

Статті в журналах з теми "Last glaciation (MIS3 à 2)"

Автор: Grafiati

Опубліковано: 15 червня 2024

Оновлено: 31 липня 2025

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1

Liakka, J., M. Löfverström, and F. Colleoni. "The impact of the North American ice sheet on the evolution of the Eurasian ice sheet during the last glacial cycle." Climate of the Past Discussions 11, no. 6 (2015): 5203–41. http://dx.doi.org/10.5194/cpd-11-5203-2015.

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Abstract. Modeling studies show that the massive ice sheet expanding over the North American and Eurasian continents in the last glacial cycle has a large impact on the atmospheric stationary waves and thus yielded a glacial climate distinctly different from the present. However, to what extent the two ice sheets influenced each others growth trajectories remains largely unexplored. In this study we investigate how ice sheets in North America influence the downstream evolution of the Eurasian ice sheet, using a thermomechanical ice-sheet model forced by climate data from snapshot simulations o

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2

Liakka, Johan, Marcus Löfverström, and Florence Colleoni. "The impact of the North American glacial topography on the evolution of the Eurasian ice sheet over the last glacial cycle." Climate of the Past 12, no. 5 (2016): 1225–41. http://dx.doi.org/10.5194/cp-12-1225-2016.

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Abstract. Modeling studies have shown that the continental-scale ice sheets in North America and Eurasia in the last glacial cycle had a large influence on the atmospheric circulation and thus yielded a climate distinctly different from the present. However, to what extent the two ice sheets influenced each others' growth trajectories remains largely unexplored. In this study we investigate how an ice sheet in North America influences the downstream evolution of the Eurasian ice sheet, using a thermomechanical ice-sheet model forced by climate data from atmospheric snapshot experiments of thre

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3

Van Meerbeeck, C. J., H. Renssen, and D. M. Roche. "How did Marine Isotope Stage 3 and Last Glacial Maximum climates differ? Perspectives from equilibrium simulations." Climate of the Past Discussions 4, no. 5 (2008): 1115–58. http://dx.doi.org/10.5194/cpd-4-1115-2008.

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Abstract. Dansgaard-Oeschger events occurred frequently during Marine Isotope Stage 3 (MIS3), as opposed to the following MIS2 period, which included the Last Glacial Maximum (LGM). Transient climate model simulations suggest that these abrupt warming events in Greenland and the North Atlantic region are associated with a resumption of the Thermohaline Circulation (THC) from a weak state during stadials to a relatively strong state during interstadials. However, those models were run with LGM, rather than MIS3 boundary conditions. To quantify the influence of different boundary conditions on t

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4

Van Meerbeeck, C. J., H. Renssen, and D. M. Roche. "How did Marine Isotope Stage 3 and Last Glacial Maximum climates differ? – Perspectives from equilibrium simulations." Climate of the Past 5, no. 1 (2009): 33–51. http://dx.doi.org/10.5194/cp-5-33-2009.

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Abstract. Dansgaard-Oeschger events occurred frequently during Marine Isotope Stage 3 (MIS3), as opposed to the following MIS2 period, which included the Last Glacial Maximum (LGM). Transient climate model simulations suggest that these abrupt warming events in Greenland and the North Atlantic region are associated with a resumption of the Thermohaline Circulation (THC) from a weak state during stadials to a relatively strong state during interstadials. However, those models were run with LGM, rather than MIS3 boundary conditions. To quantify the influence of different boundary conditions on t

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5

Ploskov, A. N., A. V. Eliseev, and I. I. Mokhov. "ENSEMBLE MODELLING OF ICE SHEET DYNAMICS IN THE LAST GLACIAL CYCLE." Доклады Российской академии наук. Науки о Земле 510, no. 1 (2023): 99–105. http://dx.doi.org/10.31857/s2686739722602873.

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Ensemble simulations (taking into account uncertainty of paleoclimate reconstructions) with a models for ice sheets dynamics for the last glacial cycle (last 128 kyr) are carried out. The model realistically reproduces spatial structure of major ice sheets and heights of their domes in the Northern hemisphere as well as the associated changes in global sea level. Perturbations with a sufficiently large amplitude applied to the initial paleoreconstruction result in marked differences of the modelling, in particular, durimg the Last Glacial maximu and during 58–51 kyr before present (the initial

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6

Castillo-Llarena, Andrés, Franco Retamal-Ramírez, Jorge Bernales, Martín Jacques-Coper, Matthias Prange, and Irina Rogozhina. "Climate and ice sheet dynamics in Patagonia throughout marine isotope stages 2 and 3." Climate of the Past 20, no. 7 (2024): 1559–77. http://dx.doi.org/10.5194/cp-20-1559-2024.

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Abstract. During the Last Glacial Maximum (LGM, ∼ 23 000 to 19 000 years ago), the Patagonian Ice Sheet (PIS) covered the central chain of the Andes between ∼ 38 to 55° S. Existing paleoclimate evidence – mostly derived from glacial landforms – suggests that maximum ice sheet expansions in the Southern Hemisphere and Northern Hemisphere were not synchronized. However, large uncertainties still exist in the timing of the onset of regional deglaciation and its major drivers. Here we present an ensemble of numerical simulations of the PIS during the LGM. We assess the skill of paleoclimate model

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7

Zolnikov, I. D., I. C. Novikov, E. V. Deev, A. V. Panin, and R. N. Kurbanov. "The Last Glaciation and Ice-Dammed Lakes in the South-East Altai." Journal "Ice and snow" 63, no. 4 (2023): 639–51. http://dx.doi.org/10.31857/s207667342304018x.

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Received June 8, 2023; revised September 4, 2023; accepted October 2, 2023The palaeogeographic scheme of the distribution of glaciers and ice-dammed lakes in the Altai during the last global glaciation (MIS-2) was compiled based on a detailed large-scale geomorphological survey. Analysis of geomorphological traces of glaciers of this time indicates that they occupied smaller areas than those of the first Late Pleistocene glaciation. By this means, the ice dams created by them were smaller that resulted in small sizes of ice-dammed lakes. The preserved levels of terraces indicate that during th

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8

Lian, Olav B., and Stephen R. Hicock. "Lithostratigraphy and limiting optical ages of the Pleistocene fill in Fraser River valley near Clinton, south-central British Columbia." Canadian Journal of Earth Sciences 38, no. 5 (2001): 839–50. http://dx.doi.org/10.1139/e00-103.

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The Fraser River valley near Clinton contains a thick sediment fill that is presently incised down to bedrock. The sequence, approximately 500 m thick, is generally upward fining and consists of up to 100 m of glacigenic debris flow diamicton and glaciofluvialdeltaic gravel and sand at the base, overlain by about 350 m of glaciolacustrine sediments and minor diamicton, which is in turn capped by several metres of till. The sequence is interpreted to represent (i) valley aggradation in response to glaciation, followed by (ii) the impoundment of the valley by sediment and (or) ice, and the form

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9

Lehmkuhl, Frank, Michael Klinge, Henrik Rother, and Daniela Hülle. "Distribution and timing of Holocene and late Pleistocene glacier fluctuations in western Mongolia." Annals of Glaciology 57, no. 71 (2016): 169–78. http://dx.doi.org/10.3189/2016aog71a030.

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Abstract.Despite being a key location for paleoglaciological research in north-central Asia, with the largest number of modern and Pleistocene glaciers, and in the transition zone between the humid Russian Altai and dry Gobi Altai, little is known about the precise extent and timing of Holocene and late Pleistocene glaciations in western Mongolia. Here we present detailed information on the distribution of modern and late Holocene glaciers, and new results addressing the geomorphological differentiation and numerical dating (by optically stimulated luminescence, OSL) of Pleistocene glacial seq

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10

Glushkova, O. Yu, та V. N. Smirnov. "Реконструкция масштабов и морфологических особенностей плейстоценовых оледенений на Северо-Востоке России". Bulletin of the North-East Science Center, № 2 (30 червня 2021): 50–67. http://dx.doi.org/10.34078/1814-0998-2021-2-50-67.

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Based on the currently available data, it has been established that the earliest glaciations occurred in the Late Eopleistocene and at the end of the Early Neopleistocene. They had local distribution in the most uplifted parts of the Chersky Range. Their traces are presented in the form of moraines enclosed in sediments of intermontain depressions. Glacial forms of this age have not been identified in the relief of mountains and plains in the North-East of Russia. The Middle Neopleistocene glaciation was the largest, both in area and length of individual glaciers. It was mountain-valley and re

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11

Shulmeister, James, Glenn D. Thackray, Tammy M. Rittenour, and Olivia M. Hyatt. "Multiple glacial advances in the Rangitata Valley, South Island, New Zealand, imply roles for Southern Hemisphere westerlies and summer insolation in MIS 3 glacial advances." Quaternary Research 89, no. 2 (2018): 375–93. http://dx.doi.org/10.1017/qua.2017.108.

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AbstractStratigraphic evidence and extensive optically stimulated luminescence (OSL) geochronology from an 18-km-long reach of the middle Rangitata Valley, South Island, New Zealand, provide evidence for at least six distinct glacial advances during the last glacial cycle. These include four well-constrained Marine Oxygen Isotope Stage (MIS) 3 and 2 advances at ca. 38 ka, ca. 27 ka, ca. 21 ka and at 18 ka, as well as less well-constrained advances in MIS 4 and/or early MIS 3. Ice occupied a farther downvalley reach of the Rangitata from 38 ka to after 18 ka, indicating that near-full glacial c

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12

Lindner, Leszek, and Jan Dzierżek. "Pleistocene deposits in the western part of the Holy Cross Mountains." Studia Quaternaria 36, no. 2 (2019): 75–85. http://dx.doi.org/10.24425/sq.2019.126381.

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The paper presents characteristics of the Pleistocene sediments in the western part of the Holy Cross Mountains. They are subdivided into four complexes and their stratigraphic setting is referred to the updated scheme for the Pleistocene of Poland. The Preglacial Complex includes fluvial sediments characteristic for its lack of Scandinavian material. Sediments of three main glaciations (Nidanian, Sanian 1 and Sanian 2) within the South Polish Complex, are referred also as the South Polish Glaciations. The oldest of these glaciations (Nidanian) is separated from the middle glaciation (Sanian 1

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13

Pesjak, Lea, Andrew McMinn, Zanna Chase, and Helen Bostock. "Sea ice and productivity changes over the last glacial cycle in the Adélie Land region, East Antarctica, based on diatom assemblage variability." Climate of the Past 19, no. 2 (2023): 419–37. http://dx.doi.org/10.5194/cp-19-419-2023.

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Abstract. Although diatoms can provide important palaeoenvironmental information about seasonal sea ice extent productivity, sea surface temperature, and ocean circulation variability, there are still relatively few studies analysing the last glacial cycle near the Antarctic continent. This study examines diatom assemblages over the last glacial cycle from core TAN1302-44, offshore Adélie Land, East Antarctica. Two distinct diatom assemblages were identified using principal component analysis (PC 1–PC 2). The PC 1 assemblage is characterised by Thalassiosira lentiginosa, Actinocyclus actinochi

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14

Aber, James S., and Jan Lundqvist. "Glaciotectonic Structures in Central Sweden and their Significance for Glacial Theory." Géographie physique et Quaternaire 42, no. 3 (2007): 315–23. http://dx.doi.org/10.7202/032739ar.

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ABSTRACT Various glaciotectonic structures and landforms created by ice pushing are common in drift and interstadial sediments in a narrow belt of central Sweden. Described examples from the Lake Storsjôn vicinity demonstrate that glaciotectonic deformation took place while the area was deeply covered by the last Fennoscandian Ice Sheet. Deformation was controlled by pressure gradients related to position of the ice divide and ice movement away from the divide. As the position of the divide shifted during the last glaciation, so did the orientation of glaciotectonic structures. The regional di

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15

Hicock, Stephen R., and Olav B. Lian. "The Sisters Creek Formation: Pleistocene sediments representing a nonglacial interval in southwestern British Columbia at about 18 ka." Canadian Journal of Earth Sciences 32, no. 6 (1995): 758–67. http://dx.doi.org/10.1139/e95-065.

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Sisters Creek Formation is formally defined, stratotypes are established for it, and the time–space chart is updated for the Fraser Lowland, southwestern British Columbia. The Sisters Creek is a Pleistocene formation comprising in situ and reworked organic-rich sediments, and nonorganic silt, sand, and gravel. The formation was deposited during the Port Moody interstade (within the Late Wisconsinan Fraser Glaciation; δ18O stage 2) between the Coquitlam stade (early Fraser Glaciation) and the main Vashon stadial maximum that occurred about 14.5 ka. The Sisters Creek Formation represents a glaci

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16

Mikharevich, M. V., and S. G. Prudnikov. "RESULTS OF PALYNOLOGICAL AND PALEOCARPOLOGICAL ANALYSES OF THE LATE NEOPLEISTOCENE INTERGLACIAL AND PERIGLACIAL DEPOSITS (EAST TYVA HIGHLANDS, SERLIGKHEM INTERMOUNTAIN BASIN)." Geology and mineral resources of Siberia, no. 2 (2023): 3–9. http://dx.doi.org/10.20403/2078-0575-2023-2-3-9.

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The last Late Pleistocene glaciation deposits of the tongue-like basin, as well as an interglacial alluvium overlapped by glaciofluvial have been studied on the basis of application of palynological and paleocarpological methods of analysis in the basin of the middle course of the Yenisei River. The tongue-like basin deposits were compared with those previously studied by researchers in headwaters of the Kharal River (Azas glacial complex), formed according to OSL dates in the interval of the end of MIS-3–MIS-2. Fluvioglacial overlapping an interglacial alluvium is compared with the same glaci

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17

Siegert, Martin J. "Quantitative reconstructions of the last glaciation of the Barents Sea: a review of ice-sheet modelling problems." Progress in Physical Geography: Earth and Environment 21, no. 2 (1997): 200–229. http://dx.doi.org/10.1177/030913339702100202.

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Reconstructions of the Late Weichselian ice sheet within the Barents Sea have varied from complete coverage of a large (3 km thick) grounded ice mass, to a situation in which glacier extent was restricted to the Svalbard coast. Recently obtained geological data indicate that 1) glaciation of the Barents Sea occurred after 25 000 years ago; 2) the ice sheet was at its maximum extent at around 20 000 years ago; 3) the maximum-sized ice sheet covered the entire Barents Shelf; and 4) ice-sheet decay began at about 16 500 years ago. The ice sheet was, consequently, one of the last to grow and first

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18

Lei, Yanxiang, Xinyi Liu, Yanhui Zhang, et al. "Late Pleistocene Climate–Weathering Dynamics in Bohai Bay: High-Resolution Sedimentary Proxies and Their Global Paleoclimatic Synchronicity." Journal of Marine Science and Engineering 13, no. 5 (2025): 881. https://doi.org/10.3390/jmse13050881.

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Understanding the climate–weathering coupling mechanisms remains pivotal for interpreting global glacial–interglacial cycles, yet advancements have been constrained by the limited high-resolution sedimentary archives. The newly acquired BXZK2017-2 borehole (30.5 m core) from Bohai Bay provides an exceptional sedimentary sequence to investigate the Late Quaternary climate–weathering interactions. Through an integrated high-resolution chronostratigraphic framework (AMS 14C and OSL dating) coupled with multi-proxy sedimentological analyses (major element geochemistry and granulometric parameters)

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19

Gschwentner, Philipp, Hanns Kerschner, and Christoph Spötl. "Late Glacial ice advance in the Kellerjoch region near Schwaz (Tyrol, Eastern Alps)." Austrian Journal of Earth Sciences 113, no. 1-2 (2020): 211–27. http://dx.doi.org/10.17738/ajes.2020.0013.

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Abstract The Kellerjoch forms a small isolated massif at the northernmost rim of the central Eastern Alps of Tyrol and shows a number of geomorphological features of glacial and periglacial origin. Mapping yields evidence of two local glaciations postdating the Last Glacial Maximum. Using a simple glaciological approach the palaeoglaciers related to these events were reconstructed. The older glaciation yields an equilibrium line altitude (ELA) ranging from 1660 m for the maximum extent to 1800 m a.s.l. for the innermost moraine. For the younger glaciation, ELAs were reconstructed at 1905 m and

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20

Zolnikov, I. D., I. S. Novikov, R. N. Kurbanov, E. A. Filatov, N. V. Glushkova, and P. S. Levitskaya. "The age and size of the last glacial-underground lake of the Chui basin (Gorny Altai)." Limnology and Freshwater Biology, no. 4 (2024): 753–56. http://dx.doi.org/10.31951/2658-3518-2024-a-4-753.

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Chronology and size of the last glacier-dammed lake in the Chuya Basin is still actively debated, because it is inextricably linked with the problem of the age and scale of the last glacial megaflood, which passed through the Chuya, Katun, and Ob valleys. For the first time, direct dating of lacustrine sediments of the last glacial-dammed lake of the Chuya Basin reaching up to 1980 m has been carried out. Obtained ages corresponds to the last glacial maximum (MIS-2) and confirms the glaciation of this age in the area within the valet connecting Chuya and Kurai basins.

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21

Thackray, Glenn D. "Extensive Early and Middle Wisconsin Glaciation on the Western Olympic Peninsula, Washington, and the Variability of Pacific Moisture Delivery to the Northwestern United States." Quaternary Research 55, no. 3 (2001): 257–70. http://dx.doi.org/10.1006/qres.2001.2220.

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AbstractLarge glaciers descended western valleys of the Olympic Mountains six times during the last (Wisconsin) glaciation, terminating in the Pacific coastal lowlands. The glaciers constructed extensive landforms and thick stratigraphic sequences, which commonly contain wood and other organic detritus. The organic material, coupled with stratigraphic data, provides a detailed radiocarbon chronology of late Pleistocene ice-margin fluctuations. The early Wisconsin Lyman Rapids advance, which terminated prior to ca. 54,000 14C yr B.P., represented the most extensive ice cover. Subsequent glacier

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22

Kaplan, Michael R., Daniel C. Douglass, Bradley S. Singer, Robert P. Ackert, and Marc W. Caffee. "Cosmogenic nuclide chronology of pre-last glacial maximum moraines at Lago Buenos Aires, 46�S, Argentina." Quaternary Research 63, no. 3 (2005): 301–15. http://dx.doi.org/10.1016/j.yqres.2004.12.003.

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At Lago Buenos Aires, Argentina, 10Be, 26Al, and 40Ar/39Ar ages range from 190,000 to 109,000 yr for two moraines deposited prior to the last glaciation, 23,000�16,000 yr ago. Two approaches, maximum boulder ages assuming no erosion, and the average age of all boulders and an erosion rate of 1.4 mm/103 yr, both yield a common estimate age of 150,000�140,000 yr for the two moraines. The erosion rate estimate derives from 10Be and 26Al concentrations in old erratics, deposited on moraines that are >760,000 yr old on the basis of interbedded 40Ar/39Ar dated lavas. The new cosmogenic ages indic

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23

Sturchio, Neil C., Kenneth L. Pierce, Michael T. Murrell, and Michael L. Sorey. "Uranium-Series Ages of Travertines and Timing of the Last Glaciation in the Northern Yellowstone Area, Wyoming-Montana." Quaternary Research 41, no. 3 (1994): 265–77. http://dx.doi.org/10.1006/qres.1994.1030.

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AbstractUranium-series age determinations by mass spectrometric methods were done for travertines and associated carbonate veins related to clastic deposits of the last glaciation (Pinedale) in the northern Yellowstone area. Dramatic variations in the hydrologic head are inferred from variations in the elevation of travertine deposition with time and are consistent with the expected hydrologic effects of glaciation. We determine the following chronology of the Pinedale Glaciation, with the key assumption that travertine deposits (and associated carbonate veins) perched high above present therm

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24

Delmas, Magali, Yanni Gunnell, Régis Braucher, Marc Calvet, and Didier Bourlès. "Exposure age chronology of the last glaciation in the eastern Pyrenees." Quaternary Research 69, no. 2 (2008): 231–41. http://dx.doi.org/10.1016/j.yqres.2007.11.004.

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We present a chronology of ice recession in the eastern Pyrenees based onin situ-produced10Be data obtained from the Têt paleoglacier complex. The sampling strategy is based on the relative chronology provided by a detailed geomorphological map of glacial landforms. Results indicate that the last maximum ice advance occurred late (i.e., during Marine Isotope Stage 2) compared to the chronology currently established for the rest of the Pyrenees. Despite debatable evidence for a glacial readvance during the Oldest Dryas stade, ice-cap melt-out was rapid, residual cirque glaciers having disappear

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25

Rother, Henrik, Frank Lehmkuhl, David Fink, and Veit Nottebaum. "Surface exposure dating reveals MIS-3 glacial maximum in the Khangai Mountains of Mongolia." Quaternary Research 82, no. 2 (2014): 297–308. http://dx.doi.org/10.1016/j.yqres.2014.04.006.

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AbstractThis study presents results from geomorphological mapping and cosmogenic radionuclide dating (10Be) of moraine sequences at Otgon Tenger (3905 m), the highest peak in the Khangai Mountains (central Mongolia). Our findings indicate that glaciers reached their last maximum extent between 40 and 35 ka during Marine Oxygen Isotope Stage (MIS) 3. Large ice advances also occurred during MIS-2 (at ~ 23 and 17–16 ka), but these advances did not exceed the limits reached during MIS-3. The results indicate that climatic conditions during MIS-3, characterized by a cool-wet climate with a greater-

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26

Saini, Himadri, Katrin J. Meissner, Laurie Menviel, and Karin Kvale. "Impact of iron fertilisation on atmospheric CO₂ during the last glaciation." Climate of the Past 19, no. 7 (2023): 1559–84. http://dx.doi.org/10.5194/cp-19-1559-2023.

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Abstract. While several processes have been identified to explain the decrease in atmospheric CO2 during glaciations, a better quantification of the contribution of each of these processes is needed. For example, enhanced aeolian iron input into the ocean during glacial times has been suggested to drive a 5 to 28 ppm atmospheric CO2 decrease. Here, we constrain this contribution by performing a set of sensitivity experiments with different aeolian iron input patterns and iron solubility factors under boundary conditions corresponding to 70 000 years before present (70 ka), a time period charac

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27

Seguinot, Julien, Susan Ivy-Ochs, Guillaume Jouvet, Matthias Huss, Martin Funk, and Frank Preusser. "Modelling last glacial cycle ice dynamics in the Alps." Cryosphere 12, no. 10 (2018): 3265–85. http://dx.doi.org/10.5194/tc-12-3265-2018.

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Abstract. The European Alps, the cradle of pioneering glacial studies, are one of the regions where geological markers of past glaciations are most abundant and well-studied. Such conditions make the region ideal for testing numerical glacier models based on simplified ice flow physics against field-based reconstructions and vice versa. Here, we use the Parallel Ice Sheet Model (PISM) to model the entire last glacial cycle (120–0 ka) in the Alps, using horizontal resolutions of 2 and 1 km. Climate forcing is derived using two sources: present-day climate data from WorldClim and the ERA-Interim

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28

DOTSENKO, Valeriy, and Ibragim KERIMOV. "ABOUT THE REASONS OF CLIMATE WARMING BASED ON STUDYING THE HISTORY OF QUATERNARY GLACIOSES OF THE CAUCASUS (ON THE EXAMPLE OF THE INTERDURCHIE TEREK AND THE ANDIAN KOISU)." Sustainable Development of Mountain Territories 12, no. 3 (2020): 461–71. http://dx.doi.org/10.21177/1998-4502-2020-12-3-461-471.

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The Greater Caucasus experienced repeated glaciation during the Quaternary (early, middle, upper Pleistocene, late Glacial, and late Holocene), which occurred under changing climatic conditions and differentiated tectonic movements. These glaciations, of course, are associated with changes in terrain, the formation of new deposits, transgressions and regressions of the Caspian Sea, changes in vegetation and soil types, so the problem of glaciation affects all earth Sciences to varying degrees. The study of Quaternary glaciation, especially Holocene glaciation, is currently relevant for underst

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29

Brookes, Ian A. "Ice Marks in Newfoundland: A History of Ideas." Géographie physique et Quaternaire 36, no. 1-2 (2007): 139–63. http://dx.doi.org/10.7202/032474ar.

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ABSTRACT This essay traces the evolution of ideas on the origin of features in Newfoundland now ascribed to glaciation, through the period 1822-1981. It identifies "Pre-cognitive," "Drift," and "Glacial" phases, with the last phase divided into seven sub-phases. In the Glacial Phase, debate centred on 1) the relative roles of Labrador ice and ice from the island of Newfoundland, 2) the areal and vertical extent of ice masses, and 3) the number and chronology of glacial episodes. Alexander Murray is credited with first recognizing glaciation in Newfoundland in 1866, and the background to his pe

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30

Roman, Małgorzata, Danuta Dzieduszyńska, and Joanna Petera-Zganiacz. "Łódź Region and its Northern Vicinity under Vistulian Glaciation Conditions." Quaestiones Geographicae 33, no. 3 (2014): 155–63. http://dx.doi.org/10.2478/quageo-2014-0038.

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Abstract An overview of palaeogeographical findings of the last glacial period (MIS 5d-MIS 2) has been given for the Łódź region. Processes which influenced the area outside of ice-sheet margin are presented with respect to space and time, as predominantly driven by different types of periglacial environment. Attention was paid to leading accumulative and erosional processes and resulting landforms, still well-pronounced in the landscape. Recently, the picture of the area discussed, during the Vistulian was completed and identified was the mechanism of the LGM ice-sheet advance onto the Płock

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31

Zichu, Xik. "Ice Formation and Ice Structure on Law Dome, Antarctica." Annals of Glaciology 6 (1985): 150–53. http://dx.doi.org/10.3189/1985aog6-1-150-153.

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Snow stratigraphical studies, together with crystallographic and oxygen isotope analyses, have affirmed the existence of a complete range of ice formation zones on the Law Dome, Antarctica. Asymmetric distribution of these zones and changes in the types of ice formation with depth in snow pits dug near the boundaries of the zones show an asymmetry in accumulation and thermal conditions in different sites on Law Dome, and a climatic change in past years. Crystallographic studies of ice from two boreholes near Cape Forger (BHC i and BHC 2) show change of microtexture and fabric of the ice crysta

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32

Zichu, Xik. "Ice Formation and Ice Structure on Law Dome, Antarctica." Annals of Glaciology 6 (1985): 150–53. http://dx.doi.org/10.1017/s0260305500010211.

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Snow stratigraphical studies, together with crystallographic and oxygen isotope analyses, have affirmed the existence of a complete range of ice formation zones on the Law Dome, Antarctica. Asymmetric distribution of these zones and changes in the types of ice formation with depth in snow pits dug near the boundaries of the zones show an asymmetry in accumulation and thermal conditions in different sites on Law Dome, and a climatic change in past years. Crystallographic studies of ice from two boreholes near Cape Forger (BHC i and BHC 2) show change of microtexture and fabric of the ice crysta

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33

Marchetti, David W., M. Scott Harris, Christopher M. Bailey, Thure E. Cerling, and Sarah Bergman. "Timing of glaciation and last glacial maximum paleoclimate estimates from the Fish Lake Plateau, Utah." Quaternary Research 75, no. 1 (2011): 183–95. http://dx.doi.org/10.1016/j.yqres.2010.09.009.

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AbstractThe High Plateaus of Utah include seven separate mountain ranges that supported glaciers during the Pleistocene. The Fish Lake Plateau, located on the eastern edge of the High Plateaus, preserves evidence of at least two glacial advances. Four cosmogenic 3He exposure ages of boulders in an older moraine range from 79 to 159 ka with a mean age of 129 ± 39 ka and oldest ages of 152 ± 3 and 159 ± 5 ka. These ages suggest deposition during the type Bull Lake glaciation and Marine Oxygen Isotope Stage (MIS) 6. Twenty boulder exposure ages from four different younger moraines indicate a loca

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34

Foster, G. L., D. J. Lunt, and R. R. Parrish. "Mountain uplift and the glaciation of North America – a sensitivity study." Climate of the Past 6, no. 5 (2010): 707–17. http://dx.doi.org/10.5194/cp-6-707-2010.

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Abstract. The Miocene (~24 to ~5 million years ago) was a period of relative global warmth compared to the Quaternary (~2 million years ago to present; e.g. Zachos et al., 2001) and was characterised by the intermittent glaciation of Antarctica only. Paradoxically, the majority of available proxy data suggest that during the Miocene, pCO2 was similar, or even lower, than the pre-industrial levels (280 ppmv; Pagani et al., 1999; Pearson and Palmer, 2000; Kürschner et al., 1996, 2008) and at times probably crossed the modelled threshold value required for sustained glaciation in the Northern Hem

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35

Heaton, T. H. E., A. S. Talma, and J. C. Vogel. "Dissolved Gas Paleotemperatures and 18O Variations Derived from Groundwater Near Uitenhage, South Africa." Quaternary Research 25, no. 1 (1986): 79–88. http://dx.doi.org/10.1016/0033-5894(86)90045-1.

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Under the near-ideal hydrologic conditions provided by the Uitenhage artesian aquifer, reliable estimates of paleotemperatures were obtained by measurement of the dissolved N2 and Ar in groundwater, confidently dated in the range 28,000 yr B.P. to the present using 14C. The mean annual air temperature in this area during the last glaciation is calculated to have been, on average, 1/2°C lower than during the Holocene. The change in the 18O/16O ratio of the groundwater, corrected for changes in ocean water, amounted to 0.4‰ per °C.

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36

Nisbet, Euan G., and R. Ellen R. Nisbet. "Methane, oxygen, photosynthesis, rubisco and the regulation of the air through time." Philosophical Transactions of the Royal Society B: Biological Sciences 363, no. 1504 (2008): 2745–54. http://dx.doi.org/10.1098/rstb.2008.0057.

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Rubisco I's specificity, which today may be almost perfectly tuned to the task of cultivating the global garden, controlled the balance of carbon gases and O 2 in the Precambrian ocean and hence, by equilibration, in the air. Control of CO 2 and O 2 by rubisco I, coupled with CH 4 from methanogens, has for the past 2.9 Ga directed the global greenhouse warming, which maintains liquid oceans and sustains microbial ecology. Both rubisco compensation controls and the danger of greenhouse runaway (e.g. glaciation) put limits on biological productivity. Rubisco may sustain the air in either of two

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37

Pochocka-Szwarc, Katarzyna. "Some aspects of the last glaciation in the Mazury Lake District (north-eastern Poland)." Acta Palaeobotanica 53, no. 1 (2013): 3–8. http://dx.doi.org/10.2478/acpa-2013-0001.

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ABSTRACT The morphology of the Mazury Lake District (north-eastern Poland) dates from 24-19 ka (main stadial of the youngest Vistulian glaciation). During this last glacial maximum (MIS 2) a belt with lacustrine basins was formed when the ice sheet retreated at the end of the Pomeranian phase. The ice-sheet retreat is morphologically also expressed by the occurrence of end moraines. The study area is situated in the Skaliska Basin, in the northern part of the Lake District (near the Polish/ Russian border), at the periphery of zone with end moraines. Originally the basin was an ice-dammed depr

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38

Vikulina, Marina, Mihail Zimin, and Fedor Romanenko. "Assessment of the size of very small glaciers in Khibiny mountains." InterCarto. InterGIS 27, no. 1 (2021): 409–17. http://dx.doi.org/10.35595/2414-9179-2021-1-27-409-417.

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The presence of very small glaciation in the Khibiny mountains was discovered by V.F. Perov in 1958. Since then and until the beginning of the 21st study of glaciers in this area has not been carried out. In general, warming is recorded on the Kola Peninsula. The average annual increase in temperature is 2.3°C ± 1°C during the last 50 years, which correlates with the data of other researchers. The glaciers in the Khibiny mountains should have significantly reduced their size in this connection. In other Arctic regions degradation of glaciation is noted. Some researchers predicted to disappear

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39

Brauer, Achim, Markus J. Schwab, Brian Brademann, Sylvia Pinkerneil, and Martin Theuerkauf. "Tiefer See – a key site for lake sediment research in NE Germany." DEUQUA Special Publications 2 (August 15, 2019): 89–93. http://dx.doi.org/10.5194/deuquasp-2-89-2019.

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Abstract. Tiefer See formed in a subglacial gully system at the end of the last glaciation in the northeast German lowlands. The lake has been selected as a focus site within the TERENO (Terrestrial Environmental Observatory) NE German observatory because it forms annual laminations (calcite varves) providing detailed information of past climate and environmental changes. Our research integrates palaeolimnology and limnology by combining high-resolution analyses of the sediment record with a comprehensive monitoring of the lake and its sedimentation processes since 2012. This allows evaluation

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40

HEUSSER, C., and L. HEUSSER. "Submillennial palynology and palaeoecology of the last glaciation at Taiquemó (∼50,000calyr, MIS 2–4) in southern Chile." Quaternary Science Reviews 25, no. 5-6 (2006): 446–54. http://dx.doi.org/10.1016/j.quascirev.2005.04.008.

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41

Steinke, Stephan, Markus Kienast, Uwe Pflaumann, Mara Weinelt, and Karl Stattegger. "A High-Resolution Sea-Surface Temperature Record from the Tropical South China Sea (16,500–3000 yr B.P.)." Quaternary Research 55, no. 3 (2001): 352–62. http://dx.doi.org/10.1006/qres.2001.2235.

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AbstractThe timing and magnitude of sea-surface temperature (SST) changes in the tropical southern South China Sea (SCS) during the last 16,500 years have been reconstructed on a high-resolution, 14C-dated sediment core using three different foraminiferal transfer functions (SIMMAX28, RAM, FP-12E) and geochemical (Uk′37) SST estimates. In agreement with CLIMAP reconstructions, both the FP-12E and the Uk′37 SST estimates show an average late glacial–interglacial SST difference of 2.0°C, whereas the RAM and SIMMAX28 foraminiferal transfer functions show only a minor (0.6°C) or no consistent late

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42

Аксенов, А. О., А. С. Пирогова, А. Е. Рыбалко, et al. "EVIDENCE OF THE NORTH KARA SARTAN GLACIATION BASED ON THE GEOPHYSICAL DATA ACQUIRED IN THE TTR-21 RESEARCH EXPEDITION." ГЕОФИЗИКА, no. 2 (May 15, 2023): 21–28. http://dx.doi.org/10.34926/geo.2023.21.62.003.

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В ходе экспедиции плавучего университета ЮНЕСКО – МГУ TTR-21 (21-й экспедиции по программе Training Through Research) в северной части Карского моря по геофизическим данным были диагностированы признаки последнего сартанского оледенения (МИС-2 – морская изотопная стадия 2, поздний неоплейстоцен). Геофизические исследования включали в себя мультичастотную сейсморазведку сверхвысокого разрешения в диапазоне 150–1000 Гц, трехчастотное акустическое профилирование (7, 17,5 и 42 кГц) и многолучевое эхолотирование. В данной статье охарактеризованы обнаруженные ледниковые формы рельефа, их морфология

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43

Stauch, Georg, and Frank Lehmkuhl. "Quaternary glaciations in the Verkhoyansk Mountains, Northeast Siberia." Quaternary Research 74, no. 1 (2010): 145–55. http://dx.doi.org/10.1016/j.yqres.2010.04.003.

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AbstractGeomorphological mapping revealed five terminal moraines in the central Verkhoyansk Mountains. The youngest terminal moraine (I) was formed at least 50 ka ago according to new IRSL (infrared optically stimulated luminescence) dates. Older terminal moraines in the western foreland of the mountains are much more extensive in size. Although the smallest of these older moraines, moraine II, has not been dated, moraine III is 80 to 90 ka, moraine IV is 100 to 120 ka, and the outermost moraine V was deposited around 135 ka. This glaciation history is comparable to that of the Barents and Kar

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44

Waythomas, Christopher F., Peter D. Lea, and Robert C. Walter. "Stratigraphic Context of Old Crow Tephra, Holitna Lowland, Interior Southwest Alaska." Quaternary Research 40, no. 1 (1993): 20–29. http://dx.doi.org/10.1006/qres.1993.1052.

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AbstractA thick deposit of Old Crow tephra was discovered in a bluff exposure along the middle Holitna River near the Kulukbuk Hills (61°20′N latitude, 157°10′W longitude) in interior southwest Alaska. This locality is the southwesternmost-known deposit of Old Crow tephra in Alaska. Thickness and grain-size data from this site support a source volcano in the eastern Aleutian arc. Pleistocene stratigraphic sequences in the lowland are dominated by upward-fining eolian sand-sheet deposits and loess separated by organic silt. These deposits record at least two episodes of regional glaciation and

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45

Mikhalenko, Vladimir N. "Changes in Eurasian glaciation during the past century: glacier mass balance and ice-core evidence." Annals of Glaciology 24 (1997): 283–87. http://dx.doi.org/10.3189/s0260305500012313.

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Glaciers of both the Arctic and mid-latitude mountain systems within Eurasia have retreated intensively during the past century. Measured and reconstructed glacier mass balances show that glacier retreat began around the 1880s. The mean annual mass-balance value for 1880–1990 was −480 mm a−1 for glaciers with maritime climatic conditions, and −140 mm a−1 for continental glaciers. It can be concluded that warming in the Caucasus occurred during at least the last 60 years, according to the distribution of crystal sizes in an ice core from the Dzhantugan firn plateau. Temperatures measured in 196

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46

Mikhalenko, Vladimir N. "Changes in Eurasian glaciation during the past century: glacier mass balance and ice-core evidence." Annals of Glaciology 24 (1997): 283–87. http://dx.doi.org/10.1017/s0260305500012313.

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Glaciers of both the Arctic and mid-latitude mountain systems within Eurasia have retreated intensively during the past century. Measured and reconstructed glacier mass balances show that glacier retreat began around the 1880s. The mean annual mass-balance value for 1880–1990 was −480 mm a−1 for glaciers with maritime climatic conditions, and −140 mm a−1 for continental glaciers. It can be concluded that warming in the Caucasus occurred during at least the last 60 years, according to the distribution of crystal sizes in an ice core from the Dzhantugan firn plateau. Temperatures measured in 196

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47

Wang, Jie, Christine Kassab, Jonathan M. Harbor, Marc W. Caffee, Hang Cui, and Guoliang Zhang. "Cosmogenic nuclide constraints on late Quaternary glacial chronology on the Dalijia Shan, northeastern Tibetan Plateau." Quaternary Research 79, no. 3 (2013): 439–51. http://dx.doi.org/10.1016/j.yqres.2013.01.004.

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AbstractCosmogenic nuclide (CN) apparent exposure dating has become a widely used method for determining the age of glacial landforms on the Tibetan Plateau with > 1200 published ages. We present the first 10Be exposure ages from the Dalijia Shan, the most northeastern formerly glaciated mountain range on the Tibetan Plateau. The moraine groups identified from field and remote sensing imagery mapping record four glacial events at 37.07 ± 3.70 to 52.96 ± 4.70 ka (MIS 3), 20.17 ± 1.79 to 26.99 ± 2.47 ka (MIS 2), 16.92 ± 1.49 to 18.76 ± 1.88 ka (MIS 2), and 11.56 ± 1.03 to 11.89 ± 1.06 ka (You

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48

Liu, Yuming, Xingxing Liu, Long Ma, et al. "Temporal–spatial variations in aeolian flux on the Chinese Loess Plateau during the last 150 ka." Geological Magazine 157, no. 5 (2019): 757–67. http://dx.doi.org/10.1017/s0016756819001067.

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AbstractAeolian dust deposits from continent and ocean have been extensively investigated to reflect past changes in source aridity and atmospheric circulations. Aeolian flux (AF) as a quantitative dust proxy has been widely used in both palaeoenvironmental reconstruction and numerical simulation. However, available AF data on the Chinese Loess Plateau (CLP) is too limited to assess the temporal–spatial variations at glacial–interglacial timescales, and therefore cannot be used as robust input parameters in palaeoclimate models. Here we investigate eight loess profiles along two N–S-aligned tr

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49

Atkinson, Nigel, Daniel J. Utting, and Steven M. Pawley. "Landform signature of the Laurentide and Cordilleran ice sheets across Alberta during the last glaciation." Canadian Journal of Earth Sciences 51, no. 12 (2014): 1067–83. http://dx.doi.org/10.1139/cjes-2014-0112.

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Government geological survey maps and research publications have portrayed the distribution of glacial landforms associated with the advance and retreat of the Laurentide and Cordilleran ice sheets across Alberta at a local, regional, and continental scale. To date, this information has not been systematically synthesized into a single compilation at a consistent scale. Although this original work provided valuable information to constrain reconstructions of former ice sheet extent, configuration, and flow geometry, its derivation primarily from the interpretation of aerial photographs and the

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50

Turon, Jean-Louis, Anne-Marie Lézine, and Michelle Denèfle. "Land–sea correlations for the last glaciation inferred from a pollen and dinocyst record from the Portuguese margin." Quaternary Research 59, no. 1 (2003): 88–96. http://dx.doi.org/10.1016/s0033-5894(02)00018-2.

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AbstractPollen and dinoflagellate cyst assemblages from Core SU 81-18 recovered off Portugal (37°46′N, 10°11′W; 3135-m water depth) have been used to document the short-term environmental changes that occurred in southwest Europe since 25,000 yr B.P. The relationship between the oceanic and continental environments has been further examined by the use of other marine proxies (coarse sedimentary fraction, foraminifera) and by comparison with proximal land pollen records. Heinrich 2 (H2) and Heinrich 1 (H1) events were the most extreme parts of the highly variable last glacial period, with the m

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