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  • 1
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    Age determinations on sediment core MK-316 (2006)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: Age, 14C conventional; Age, dated; Age, dated standard deviation; Akademik Mstislav Keldysh; AMKxx; DEPTH, sediment/rock; Depth, top/min; GC; Gravity corer; MK-316; Quaternary Environment of the Eurasian North; QUEEN; Reykjanes Ridge
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 2
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    Age determinations on sediment core MK-325 (2006)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: Age, 14C conventional; Age, dated; Age, dated standard deviation; Akademik Mstislav Keldysh; AMKxx; DEPTH, sediment/rock; Depth, top/min; GC; Gravity corer; MK-325; Quaternary Environment of the Eurasian North; QUEEN; Reykjanes Ridge
    Type: Dataset
    Format: text/tab-separated-values, 15 data points
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  • 3
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    Relative abundance of planktonic foraminifera in sediment core MK-316 (2006)
    PANGAEA
    Details
    Publication Date: 2023-04-20
    Keywords: Akademik Mstislav Keldysh; AMKxx; Counting 〉150 µm fraction; DEPTH, sediment/rock; GC; Globigerina bulloides; Globigerina quinqueloba; Globigerinella aequilateralis; Globigerinita bradyi; Globigerinita glutinata; Globigerinoides ruber; Globorotalia hirsuta; Globorotalia inflata; Globorotalia scitula; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Gravity corer; MK-316; Neogloboquadrina pachyderma dextral; Neogloboquadrina pachyderma sinistral; Orbulina universa; Quaternary Environment of the Eurasian North; QUEEN; Reykjanes Ridge
    Type: Dataset
    Format: text/tab-separated-values, 994 data points
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  • 4
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    Relative abundance of planktonic foraminifera in sediment core MK-325 (2006)
    PANGAEA
    Details
    Publication Date: 2023-04-20
    Keywords: Akademik Mstislav Keldysh; AMKxx; Counting 〉125 µm fraction; Counting 〉63 µm fraction; DEPTH, sediment/rock; GC; Globigerina bulloides; Globigerina quinqueloba; Globigerinita bradyi; Globigerinita glutinata; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia scitula; Gravity corer; MK-325; Neogloboquadrina pachyderma dextral; Neogloboquadrina pachyderma sinistral; Orbulina universa; Quaternary Environment of the Eurasian North; QUEEN; Reykjanes Ridge
    Type: Dataset
    Format: text/tab-separated-values, 220 data points
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  • 5
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    Planktonic foraminifera and Quaternary paleoceanology of the Atlantic Ocean
    PANGAEA
    In:  P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow | Supplement to: Barash, Max S (1988): Chetvertichnaya Paleookeanologiya Atlanticheskogo Okeana (Quaternary Paleoceanology of the Atlantic Ocean). Nauka Publ. (Moscow): in Russian, 272 pp
    Details
    Publication Date: 2023-05-12
    Description: An original method of paleotemperature analysis on planktonic foraminifera is substantiated and actively used for stratigraphy of bottom sediments and paleoceanologic reconstructions. On the base of this method, as well as on lithological, geochemical, and oxygen isotope data, radiocarbon dating, constructions of other investigators, etc., the main features of dynamic Quaternary paleoceanology of the Atlantic Ocean is reconstructed. It is discussed in the context of global paleogeography. Paleotemperature field, climatic zonation, paleoecology of foraminifera, position of the main water masses, water fronts, currents, distribution of sea ice boundaries, upwelling activity, benthic circulation, processes of sedimentation are econstructed and analyzed.
    Keywords: AK3-205GC; Akademik Kurchatov; AKU3; Archive of Ocean Data; ARCOD; Atlantic Ocean; Benguela Upwelling; GC; Gravity corer; Mikhail Lomonosov; ML3; ML3_198-4GC; ML5; ML5_348; ML6_475; MULT; Multiple investigations; North Atlantic
    Type: Dataset
    Format: application/zip, 6 datasets
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  • 6
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    Planktonic foraminiferas in bottom sediments and paleotemperatures in the areas of the Benguela and Canary upwellings
    PANGAEA
    In:  Supplement to: Barash, Max S; Os'kina, Natalia S; Ivanova, Elena V (1980): Upwelling near Africa during the Late Pleistocene from data on planktonic foraminifers. Oceanology, 20(1), 62-68
    Details
    Publication Date: 2023-05-12
    Description: Distribution of planktonic foraminiferal tests was studied in four drill cores of Upper Quaternary sediments from the zone of influence of the Canary upwelling and in nine sediment cores from the zone of the Benguela upwelling. Paleotemperatures were reconstructed from these data. It was established that under conditions during stadials, interstadials, and interglacials of Quaternary time, the upwelling existed continuously, intensifying and expanding during colder epochs and weakening and contracting in the warmer intervals. During the last stadial (about 18000 yrs ago), relative cooling of sea waters as compared to central regions of the ocean in the zone of the Canary upwelling was not lower than 9°C (4.5°C higher than at present time), and in the zone of the Benguela upwelling it was not lower than 15°C (8.5°C higher than at present time).
    Keywords: AK-1708GC; AK3-121GC; AK3-138GC; AK3-176GC; AK3-178GC; AK3-200GC; AK3-203GC; AK3-205GC; AK3-212GC; AK6-434GC; Akademik Kurchatov; AKU3; AKU6; Archive of Ocean Data; ARCOD; Benguela Upwelling; Canary Upwelling; DRILL; Drilling/drill rig; GC; Gravity corer; Mikhail Lomonosov; ML10; ML10_772; ML12; ML12_985; Sedov1-16
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 7
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    Oxygen isotopic and species composition of planktonic foraminiferas in sediment cores from the North Atlantic
    PANGAEA
    In:  Supplement to: Barash, Max S; Nikolayev, Sergey D; Blyum, Natalia S (1973): Paleotemperature analysis of three sediment cores from the North Atlantic. Oceanology, 13, 870-871
    Details
    Publication Date: 2023-05-12
    Description: Paleotemperature curves were drawn from oxygen-isotope ratios in CaCO3 of planktonic foraminiferal tests and by the micropaleontological method using quantitative relationships of their species. Two series of curves yield similar results. These data confirm that isotope composition of oxygen reflects primarily temperature, and not isotope composition in ocean water. Temperature of the upper layer of ocean water increased from north to south both during the last two glaciations and in the interglacials. All three sediment cores collected from different latitudes show approximately the same amplitudes of fluctuation of mean annual temperature during times of their accumulation, as determined independently by different methods; these amplitudes are estimated as 5-7°C.
    Keywords: AK6-434-1; Akademik Kurchatov; AKU6; Archive of Ocean Data; ARCOD; DM-M-2; GC; Gravity corer; ML1_66; North Atlantic; VITYAZ; Vityaz (ex-Mars)
    Type: Dataset
    Format: application/zip, 6 datasets
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  • 8
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    Planktic foraminifers, oxygen- and carbon isotopic compositions, and radiocarbon age in bottom sediments from Core AMK4-316GC
    PANGAEA
    In:  Supplement to: Barash, Max S; Yushina, Irina G; Spielhagen, Robert F (2002): Reconstructions of the Quaternary paleohydrological variability by planktonic foraminifers (North Atlantic, Reykjanes Ridge). Translated from Okeanologiya, 2002, 42(5), 744-756, Oceanology, 42(5), 711-722
    Details
    Publication Date: 2023-05-12
    Description: In a sediment core AMK4-316 (460 cm long) on the basis of radiocarbon, oxygen isotope, and lithological data climatostratigraphy is established for time interval about 145 ka. The method of factor analysis and spline interpolation applied to data on distribution of planktic foraminifera species has allowed to reconstruct average annual and seasonal temperatures and salinity at the surface and at depth 100 m. The optimum of the Last Interglaciation (5e) is characterized by maximal temperatures, low amplitudes of seasonal fluctuations, and by increased thickness of the upper homogeneous layer. The glacial hydrological mode has arisen here 115 ka ago. Coolings outstripped appropriate events of the global continental glaciation. Minimal average annual temperatures (4-4.5°C) are reconstructed for 47-45, 42, 36, 29-30, and 10 ka. For 50-30 ka interval numerous strong temperature fluctuations that reflect migrations of the polar front are established. Maximal differences of salinity at the surface and depth 100 m showing influence of melting waters were in the beginning of deglaciations (135 and 20 ka) and repeatedly arose in 50-30 ka interval. The Last Glacial Maximum (18 ka) is characterized by the lowest salinity but not by a peak of low temperatures at the surface. Surface temperature was lowered up to 10 ka. Average annual surface temperature of the Holocene optimum was 2°C above the modern one and 2°C below temperature in the Interglaciation optimum (5e), thickness of the upper homogeneous layer exceeded 100 m.
    Keywords: Akademik Mstislav Keldysh; AMK4; AMK4-316GC; Archive of Ocean Data; ARCOD; GC; Gravity corer; Reykjanes Ridge
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 9
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    (Table 9.3) Chemical composition of sedimentary rocks from Station VITYAZ7425
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Calculated; Carbon dioxide; Dredge; DRG; Gas volumetric; Iron oxide, Fe2O3; Iron oxide, FeO; Loss of ignition analysis; Loss on ignition; Magnesium oxide; Manganese oxide; Potassium oxide; Sample code/label; Sample type; Silicon dioxide; Sodium oxide; Sum; Titanium dioxide; VITYAZ; Vityaz (ex-Mars); VITYAZ7425; Water in rock; Wet chemistry; X-ray fluorescence (XRF)
    Type: Dataset
    Format: text/tab-separated-values, 110 data points
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  • 10
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    Radiocarbon dating of bottom sediments from the Woodlark and Manus Basins
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Age, dated; Age, dated standard deviation; Age, radiocarbon; Akademik Mstislav Keldysh; AMK21; AMK21-2167; AMK21-2168; AMK21-2179; AMK21-2259; Archive of Ocean Data; ARCOD; Calculated; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Elevation of event; Event label; GC; Gravity corer; Latitude of event; Longitude of event; Manus Basin; Woodlark Basin
    Type: Dataset
    Format: text/tab-separated-values, 134 data points
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