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  • Journal of Quaternary Science
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  • Abstract: The pollen record of three marine late Quaternary cores off Senegal shows a juxtaposition of Mediterranean, Northern Saharan, Central Saharan elements, which are considered transported by the trade winds from a winter-rainfall area, and Sahelian, Soudanese, Soudano-Guinean elements, considered transported both by winds and mostly by the Senegal River, and coming from the monsoonal, summer tropical rainfall area of southern West Africa. Littoral vegetation is either the edaphically dry and saline Chenopodiaceae from sebkhas at the time of the main regression, or the warm tropical humid mangrove with Rhizophora during the humid optimum period. Four stratigraphic zones reflect, from basis to top: Zone 4. A semi-arid period with a balanced pollen input. Zone 3. A very arid period with the disappearance of monsoonal pollen, probably from the disappearance of the Senegal River, a very saline littoral plain with Chenopodiaceae, a larger input of northern Saharan pollen from intensified trade winds. Zone 2. A quite humid period, much more so than today, very suddenly established, with a northward extension of the monsoonal areas, a rich littoral mangrove, and weakening of the trade winds. Zone l. A slow and steady evolution toward the present semi-humid conditions with regression of the mangrove, and of the monsoonal areas toward the south. Tentative datations and correlations with the Tchad area suggested: zone 4: 22,500 to 19,000 years BP; zone 3: 19,000 to 12,500 years BP; zone 2: 12,500 to 5,500 years BP; zone 1: 5,500 years BP to top of core. Dinoflagellate cysts display a tropical assemblage with mostly estuarine neritic elements and also a weak oceanic component, mostly in the lower slope core 47. Cosmopolitan taxa dominate the assemblage and only a few species point to more specialized environments. Quantitative variations of the assemblage are the basis of stratigraphy which is not similar to the pollen stratigraphy, and an inshore-outshore gradient has to be taken into account to correlate the three cores. Category: geoscientificInformation Source: Supplement to: Rossignol-Strick, Martine; Duzer, Daniele (1979): Late Quaternary pollen and dinoflagellate cysts in marine cores off West Africa. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C30, 1-14 Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 15.443333 * LONGITUDE: -17.306667 * DATE/TIME: 1971-01-01T00:00:00 * ELEVATION: -625.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 15.480000 * LONGITUDE: -17.360000 * DATE/TIME: 1971-11-17T00:00:00 * ELEVATION: -945.0 m * Recovery: 5.5 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 15.825000 * LONGITUDE: -17.861667 * DATE/TIME: 1971-11-17T00:00:00 * ELEVATION: -2576.0 m * Recovery: 6 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer
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  • Abstract: Analyses of terrigenous sediments from the Chilean continental slope off the southern border of the Atacama desert (27.5°S), focusing on illite crystallinity and the Fe:Al ratio of the sediments, reveal a high-frequency variability of the position of the Southern Westerlies, which is very similar to the coeval short-term climatic events known from Greenland ice cores and from North Atlantic sediments. Besides showing dominantly precession-driven variability in precipitation over the Andes, these analyses also reveal rapid changes in weathering intensity along the Chilean Coastal Range during the last 80,000 years. These rapid changes occur at much shorter timescales than the 19-100 kyr orbital forcing of the Milankovitch cycles. Category: geoscientificInformation Source: Supplement to: Lamy, Frank; Klump, Jens; Hebbeln, Dierk; Wefer, Gerold (2000): Late Quaternary rapid climate change in northern Chile. Terra Nova, 12, 8-13, https://doi.org/10.1046/j.1365-3121.2000.00265.x Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: -27.466667 * LONGITUDE: -71.251667 * DATE/TIME: 1995-06-07T00:00:00 * ELEVATION: -1947.0 m * Recovery: 4.89 m * LOCATION: South-East Pacific * CAMPAIGN: SO102/2 * BASIS: Sonne * METHOD|DEVICE: Gravity corer (Kiel type)
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  • Abstract: The CaCO3-contents and the fractions > 40 µm have been analysed from 5 kastenloten, one piston core and two kastengreifer taken between Senegal and Cape Verde Islands. Numerous benthonic and planktonic organisms and different terrigenous components have been distinguished. The four cores off Senegal reach middle Wuerm sediments; cores GIK12329-6 and TAG72-1 reach the V-zone and core GIK12331-4 the X-zone (Eem); the two kastengreifer contain sediments of Holocene age. Correlation of the cores has been made. Holocene sedimentation rates decrease from the shallow cores (6-11 cm/1000 years) to the deep-sea (1-2 cm/1000 years). The following climatic variations could be deduced from the sediments off the Senegal: during Holocene climate was in general as today, the Senegal river transporting fine grained material to the sea. The upper Wuerm was arid with no river influence but with red dune sand transported to the continental slope. During middle Wuerm the climate was humid again. The deep-sea cores have been influenced by eolian material from arid regions during glacial and interglacial periods, indicated by relatively high "Wuestenquarz-numbers". However, during Wuerm "Wuestenquarz-numbers" are higher than during Holocene and Eem, indicating that more intensely red coloured sediment was exposed to wind activity on the continent during this period. Varying amounts of terrigenous material and CaCO3-contents indicate varying wind strengths (lower in Holocene and Eem than during Wuerm). The boundary between humid and arid Wuerm climate was at approximately 20 °N. Influence of upwelling is difficult to establish in the sediments off Senegal, because river influence, while increasing fertility also dilutes the diatoms which are typical for upwelling. High amounts of organic carbon, low plankton/benthos ratios of foraminifers and low plankton foraminifer/radiolarian ratios in Holocene sections might be interpreted as influenced by upwelling. Turbidites occur in cores 72 and 31 and at the Holocene/Pleistocene boundary of core GIK12329-6. Their composition indicates provenance from the continental shelf of the Cape Verde Islands for core 31 and the continental shelf and slope off Senegal for core TAG72-1. Volcanic material, rare in the normal pelagic sediment of core GIK12331-4 is more frequent in the turbidites. Category: geoscientificInformation Source: Supplement to: Diester-Haass, Lieselotte (1975): Sedimentation and climate in the Late Quarternary between Senegal and Cape Verde Islands. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C20, 1-32 Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 19.371700 * LONGITUDE: -18.930000 * DATE/TIME: 1971-11-09T00:00:00 * ELEVATION: -3320.0 m * Recovery: 8.45 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Sphincter corer EVENT LABEL: * LATITUDE: 16.548333 * LONGITUDE: -21.970000 * DATE/TIME: 1971-11-11T00:00:00 * ELEVATION: -3569.0 m * Recovery: 3.05 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Sphincter corer EVENT LABEL: * LATITUDE: 16.600000 * LONGITUDE: -20.450000 * ELEVATION: -3527.0 m * CAMPAIGN: TAG1972 * BASIS: Discoverer (1966) * METHOD|DEVICE: Grab
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  • These dataset includes dating results and age-depth model of core DN in Dahu Swamp from southern China, multiple mineral magnetic parameters and other multiiple proxy records in core DN sediments, and FORC files (core and catchment soil samples). The data are used in the manuscript entitled "Late Quaternary East Asian summer monsoon variability deduced from lacustrine mineral magnetic records of Dahu Swamp, southern China"
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  • Abstract: In the sediments of the NW African continental margin the mainly biogenic carbonate constituents become increasingly diluted with terrigenous material as one approaches the coast, as indicated by the carbonate-CO2 content, the Al2O3/SiO2-ratios, and the presence of ammonia fixed to alumino-silicates, predominantly to illites. In the norther area of the investigation – off Cape Blanc and Cape Bojador . the terrigenous constituents are mainly quartz from the Sahara Desert, whereas in the south – off Senegal – more alumino-silicates as clay minerals are admixed with the carbonate constituents. The organic carbon content of the continental slope sediments off Senegal is higher than in samples of the continental rise or of the preservation of organic matter as a result of high production and relatively rapid sedimentation. The zone of manganese-oxide enrichment follows the redox potential of + 330 mV from the surface (0-5 cm) into the sediments (20-30 cm deep) at 2000--3000 m and 3700 m of water depths, respectively. At shallower water depths, low redox potentials preclude deposition of manganese oxides and cause their mobilization from the sediments. About 1/3 of the total sedimentary Zn and 1/4 of the Cu is associated with the carbonate mineral fraction, probably in calcium phosphate overgrowths as a result of the mineralization of phosphorus-containing organic matter. Besides the precipitation of calcium phosphate, the mineralization of organic matter mediated by bacterial sulfate reduction also results in calcium carbonate precipitation and the exchange of ammonia for potassium on illites. Because of these simultaneous reactions, the depth distribution of all mineralization constituents in the interstitial water can be determined using the actual molar carbon-to-nitrogen-to phosphorus ratios of the sedimentary organic matter. The amount of sulfide sulfur in this process indicates the predominance of bacterial sulfate reduction in the sediments off NW Africa. This process also preferentially decomposes nitrogen- and phosphorus-containing organic compounds so organic matter deficient in these elements is characteristic for the rapidly accumulating sediments than today, indicating there was increased production of organic carbon compounds and more favorable conditions of their preservations. During the last interglacial times conditions were similar to those to today. This differentiation with time has also been observed in sediments from the Argentine Basin and from slope off South India indicating perhaps world-wide environmental changes throughout Late Quaternary times. Category: geoscientificInformation Source: Supplement to: Hartmann, Martin; Müller, Peter J; Suess, Erwin; van der Weijden, Cornelis H (1976): Chemistry of Late Quaternary sediments and their interstitial waters from the northwest African continental margin. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C24, 1-67 Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 26.645000 * LONGITUDE: -15.053333 * DATE/TIME: 1971-10-31T00:00:00 * ELEVATION: -2085.0 m * Recovery: 0.4 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 26.838330 * LONGITUDE: -15.110000 * DATE/TIME: 1971-10-31T00:00:00 * ELEVATION: -2820.0 m * Recovery: 3.5 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 23.498333 * LONGITUDE: -18.716667 * DATE/TIME: 1971-11-02T00:00:00 * ELEVATION: -3076.0 m * Recovery: 0.4 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 23.498333 * LONGITUDE: -18.716667 * DATE/TIME: 1971-11-02T00:00:00 * ELEVATION: -3080.0 m * Recovery: 5.57 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 23.131667 * LONGITUDE: -17.735000 * DATE/TIME: 1971-11-06T00:00:00 * ELEVATION: -2037.0 m * Recovery: 0.4 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 23.131667 * LONGITUDE: -17.735000 * DATE/TIME: 1971-11-06T00:00:00 * ELEVATION: -2046.0 m * Recovery: 2.84 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 21.145000 * LONGITUDE: -18.573333 * DATE/TIME: 1971-11-08T00:00:00 * ELEVATION: -2798.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 21.145000 * LONGITUDE: -18.573333 * DATE/TIME: 1971-11-08T00:00:00 * ELEVATION: -2778.0 m * Recovery: 6.19 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 19.371700 * LONGITUDE: -19.930000 * DATE/TIME: 1971-11-09T00:00:00 * ELEVATION: -3315.0 m * Recovery: 0.3 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 19.371700 * LONGITUDE: -19.930000 * DATE/TIME: 1971-11-09T00:00:00 * ELEVATION: -3316.0 m * Recovery: 5 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 19.371700 * LONGITUDE: -18.930000 * DATE/TIME: 1971-11-09T00:00:00 * ELEVATION: -3320.0 m * Recovery: 8.45 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Sphincter corer EVENT LABEL: * LATITUDE: 16.548333 * LONGITUDE: -21.970000 * DATE/TIME: 1971-11-11T00:00:00 * ELEVATION: -3573.0 m * Recovery: 0.16 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 16.548333 * LONGITUDE: -21.970000 * DATE/TIME: 1971-11-11T00:00:00 * ELEVATION: -3568.0 m * Recovery: 1.67 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 16.238333 * LONGITUDE: -20.425000 * DATE/TIME: 1971-11-13T00:00:00 * ELEVATION: -3645.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 15.953333 * LONGITUDE: -18.133333 * DATE/TIME: 1971-11-14T00:00:00 * ELEVATION: -3094.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 15.953333 * LONGITUDE: -18.133333 * DATE/TIME: 1971-11-14T00:00:00 * ELEVATION: -3082.0 m * Recovery: 1.43 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 15.316667 * LONGITUDE: -17.091667 * DATE/TIME: 1971-11-16T00:00:00 * ELEVATION: -104.0 m * Recovery: 0.2 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 15.400000 * LONGITUDE: -17.275000 * DATE/TIME: 1971-11-16T00:00:00 * ELEVATION: -508.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 15.443333 * LONGITUDE: -17.306667 * DATE/TIME: 1971-01-01T00:00:00 * ELEVATION: -711.0 m * LOCATION: Atlantic Ocean * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 15.443333 * LONGITUDE: -17.306667 * DATE/TIME: 1971-01-01T00:00:00 * ELEVATION: -625.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 15.480000 * LONGITUDE: -17.360000 * DATE/TIME: 1971-11-17T00:00:00 * ELEVATION: -966.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 15.825000 * LONGITUDE: -17.861667 * DATE/TIME: 1971-11-17T00:00:00 * ELEVATION: -2710.0 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Box corer (Reineck) EVENT LABEL: * LATITUDE: 15.825000 * LONGITUDE: -17.861667 * DATE/TIME: 1971-11-17T00:00:00 * ELEVATION: -2576.0 m * Recovery: 6 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: * LATITUDE: 23.135000 * LONGITUDE: -17.745000 * DATE/TIME: 1971-11-30T00:00:00 * ELEVATION: -2066.0 m * Recovery: 7.5 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer EVENT LABEL: (M12392-1) * LATITUDE: 25.171667 * LONGITUDE: -16.845000 * DATE/TIME: 1971-12-03T00:00:00 * ELEVATION: -2575.0 m * Recovery: 9.5 m * LOCATION: East Atlantic * CAMPAIGN: M25 * BASIS: Meteor (1964) * METHOD|DEVICE: Kasten corer
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  • Abstract: V28-239 core from cruise 28 of R/V Vema preserves a detailed oxygen-isotope and paleomagnetic record for all of the Pleistocene Epoch. The entire 21-m long core has been analyzed at 5-cm intervals. Glacial stage 22, above the Jaramillo magnetic event, may represent the first major Northern Hemisphere continental glaciation of middle Pleistocene character. Prior to this, higher frequency glacial events extend to near the level of the Olduvai magnetic event. Glacial events of less regular frequency extend ot the bottom of the core, which represents late Pliocene time. Fluctuations in carbonate dissolution intensity occur throughout the core with a similar frequency of the oxygen-isotope fluctuations. Category: geoscientificInformation Source: Supplement to: Shackleton, Nicholas J; Opdyke, Neil D (1976): Oxygen-isotope and paleomagnetic stratigraphy of Pacific core V28-239, late Plicene to latest Pleistocene. In: Cline, R M & Hays, J D (eds.), Investigations of late Quaternary paleogeography and paleoclimatology. (Geological Society of American Mem.), 145, 449-464, hdl:10013/epic.43488.d001 Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 3.250000 * LONGITUDE: 159.180000 * DATE/TIME: 1971-05-09T00:00:00 * ELEVATION: -3490.0 m * Recovery: 21.39 m * CAMPAIGN: V28 * BASIS: Vema * METHOD|DEVICE: Piston corer
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  • South Atlantic in Late Quaternary: Reconstruction of Budget and Currents
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  • Abstract: The oxygen isotopes ratios of benthic foraminifera and detailed radiocarbon ages of the organic matter of an over 15 m long sediment core from the outer Niger delta allow us to date the oxygen isotope stage boundaries 1/2 to 11500 (+/- 650) years BP, 2/3 to approximately 23000 (+/- 2000) years BP. The composition of the predominantly terrigenous clays and accessory pelagic fossils reflects the evolution of the climate over the southwestern Sahel zone and the response of the Eastern Tropical Atlantic to these climatic fluctuations during the Late Quaternary. The dilution of the pelagic fossil concentrations by the terrigenous material and the oxygen isotopes ratios of planktonic foraminifera indicate large fluctuations in the freshwater discharge from the Niger, with high precipitations over the drainage area of this river from 4500 (+/- 300) to 11500 (+/- 650) years BP and from 11800 (+(- 600) to 13000 (+/- 600) years BP while the time intervals in between were as dry as today. Relative increase of kaolinite during wet phases and the association of smectite, chlorite and attapulgite during dry ones characterize the response of the weathering in the Niger drainage basins to the climatic fluctuations. The occurrence of 10-14 A mixed-layers prior to 26000 years BP is correlated with moderate alteration of the crystalline substratum outcrops from the middle-lower part of the Niger Basin. High quartz concentrations are particularly typical for the transition between oxygen isotope stages 1 and 2 at the inception of heavy precipitations in the southern Sahel zone. Sedimentation rates were quite constant, 30-35 cm/1000 years; they became unusually large at the beginning of the Holocene from 10900 (+/- 650) to 11500 (+/- 650) years BP where they reached more than 600 cm/1000 years. Bottom waters around 1100 m depth in the Gulf of Guinea responded to changes in paleo-oceanography of the entire Atlantic Ocean as well as to local influences. Abnormal carbon isotopes ratios and the drastic changes from a highly diversified fauna (during stages 2 and 3. and during the last part of stage 1 after approx. 7000 years BP) to a poorly diversified fauna in the intervenin time span point to the development of a local benthic environment which cannot easily be compared with the corresponding continental and slope environments of the entire Atlantic Ocean. Category: geoscientificInformation Source: Supplement to: Pastouret, L; Chamley, Hervè; Delibrias, G; Duplessy, Jean-Claude; Thiede, Jörn (1978): Late quaternary climatic changes in western tropical Africa deduced from deep-sea sedimentation off Niger delta. Oceanologica Acta, 1(2), 217-232 Supplemental Information: Not Availble Coverage: EVENT LABEL: (KM31) * LATITUDE: 3.516700 * LONGITUDE: 5.566700 * ELEVATION: -1181.0 m
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  • Abstract: Determining the response of sites within the Arctic Circle to long-term climatic change remains an essential pre-requisite for assessing the susceptibility of these regions to future global warming and Arctic amplification. To date, existing records from North East Russia have demonstrated significant spatial variability across the region during the late Quaternary. Here we present diatom d18O and d30Si data from Lake El'gygytgyn, Russia, and suggest environmental changes that would have impacted across West Beringia from the Last Glacial Maximum to the modern day. In combination with other records, the results raise the potential for climatic teleconnections to exist between the region and sites in the North Atlantic. The presence of a series of 2-3 per mil decreases in d18Odiatom during both the Last Glacial and the Holocene indicates the sensitivity of the region to perturbations in the global climate system. Evidence of an unusually long Holocene thermal maximum from 11.4 ka BP to 7.6 ka BP is followed by a cooling trend through the remainder of the Holocene in response to changes in solar insolation. This is culminated over the last 900 years by a significant decrease in d18Odiatom of 2.3 per mil, which may be related to a strengthening and easterly shift of the Aleutian Low in addition to possible changes in precipitation seasonality. Category: geoscientificInformation Source: Supplement to: Swann, George E A; Leng, Melanie J; Juschus, Olaf; Melles, Martin; Brigham-Grette, Julie; Sloane, Hilary J (2010): A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia. Quaternary Science Reviews, 29(5-6), 774-786, https://doi.org/10.1016/j.quascirev.2009.11.024 Supplemental Information: Not Availble Coverage: Not Available
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