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  • PANGAEA  (27)
  • American Geophysical Union  (1)
  • 1995-1999  (28)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Is the spectral signature of the 100 kyr glacial cycle consistent with a Milankovitch origin? (1999)
    American Geophysical Union
    Details
    Publication Date: 1999-08-01
    Print ISSN: 2572-4517
    Electronic ISSN: 2572-4525
    Topics: Geosciences
    Published by American Geophysical Union
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    PAPER CURRENT
  • 2
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    (Appendix 1) DSDP Site 94-607A ostracode species census data (1996)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: 94-607A; Abyssocypris atlantica; Abyssocythereis sulcatoperforata; AGE; Agrenocythere hazeli; Ambocythere sp.; Argilloecia spp.; Aversovalva hydrodynamica; Bairdoppilata sp.; Bathycythere vanstraateni; Bosquetina mucronalatum; Bradleya dictyon; Buntonia spp.; Bythoceratina scaberrima; Bythocypris spp.; Bythocythere bathytatos; Counting 〉180 µm fraction; Cytherella serratula; Cytheropteron lineata; Cytheropteron paucipunctatum; Cytheropteron porterae; Cytheropteron spp.; Cytheropteron syntomoalatum; Cytheropteron tenuialatum; Cytheropteron testudo; Cytheropteron tressleri; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Echinocythereis echinata; Eucythere circumcostata; Glomar Challenger; Heinia dryppa; Henryhowella spp.; Krithe spp.; Leg94; Legitimocythere acanthoderma; Macrocyprid; Messinella sp.; North Atlantic/FLANK; Ostracoda; Oxycythereis spp.; Parakrithe spp.; Pedicythere sp.; Pedicythere spp.; Pelecocythere foramena; Pelecocythere sylvesterbradleyi; Platyleberis abyssoris; Platyleberis profunda; Poseidonamicus praenudus; Rockallia enigmatica; Sample code/label; Sum
    Type: Dataset
    Format: text/tab-separated-values, 132 data points
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    DATA PANGAEA
  • 3
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    (Appendix 2) DSDP Site 94-610 ostracode species census data (1996)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: 94-610; Abyssocypris atlantica; AGE; Ambocythere sp.; Argilloecia; Aversovalva sp.; Bairdoppilata victrix; Bosquetina mucronalatum; Bradleya dictyon; Buntonia textilis; Bythocythere bathytatos; Counting 〉180 µm fraction; Cytherella serratula; Cytheropteron carolinae; Cytheropteron lineoporosa; Cytheropteron porterae; Cytheropteron spp.; Cytheropteron syntomoalatum; Cytheropteron tenuialatum; Cytheropteron testudo; Cytheropteron tressleri; Cytheropteron trifossata; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Echinocythereis echinata; Eucythere spp.; Glomar Challenger; Henryhowella asperrima; Krithe spp.; Leg94; Legitimocythere acanthoderma; North Atlantic/RIDGE; Ostracoda; Oxycythereis dorsoserrata; Oxycythereis sp.; Parakrithe sp.; Pelecocythere foramena; Pelecocythere sylvesterbradleyi; Platyleberis spp.; Poseidonamicus spp.; Rockallia enigmatica; Sample code/label; Sum
    Type: Dataset
    Format: text/tab-separated-values, 2835 data points
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    DATA PANGAEA
  • 4
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    (Appendix 1) DSDP Site 94-607 ostracode species census data (1996)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: 94-607; Abyssocypris atlantica; Abyssocythereis sulcatoperforata; AGE; Agrenocythere hazeli; Ambocythere sp.; Argilloecia spp.; Aversovalva hydrodynamica; Bairdoppilata sp.; Bathycythere vanstraateni; Bosquetina mucronalatum; Bradleya dictyon; Buntonia spp.; Bythoceratina scaberrima; Bythocypris spp.; Bythocythere bathytatos; Counting 〉180 µm fraction; Cytherella serratula; Cytheropteron lineata; Cytheropteron paucipunctatum; Cytheropteron porterae; Cytheropteron spp.; Cytheropteron syntomoalatum; Cytheropteron tenuialatum; Cytheropteron testudo; Cytheropteron tressleri; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Echinocythereis echinata; Eucythere circumcostata; Glomar Challenger; Heinia dryppa; Henryhowella spp.; Krithe spp.; Leg94; Legitimocythere acanthoderma; Macrocyprid; Messinella sp.; North Atlantic/FLANK; Ostracoda; Oxycythereis spp.; Parakrithe spp.; Pedicythere sp.; Pedicythere spp.; Pelecocythere foramena; Pelecocythere sylvesterbradleyi; Platyleberis abyssoris; Platyleberis profunda; Poseidonamicus praenudus; Rockallia enigmatica; Sample code/label; Sum
    Type: Dataset
    Format: text/tab-separated-values, 2112 data points
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    DATA PANGAEA
  • 5
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    Stable isotope record of benthic foraminifera from DSDP Site 68-502 (1995)
    PANGAEA
    In:  Supplement to: Oppo, Delia W; Raymo, Maureen E; Lohmann, Gerrit; Mix, Alan C; Wright, James D; Prell, Warren L (1995): A d13C record of Upper North Atlantic Deep Water during the past 2.6 million years. Paleoceanography, 10(3), 373-394, https://doi.org/10.1029/95PA00332
    Details
    Publication Date: 2023-11-25
    Description: Benthic foraminiferal delta13C data from site 502 in the Caribbean Sea (sill depth ?1800 m) indicate that throughout the past 2.6 m.y., glacial delta13C values in the middepth Atlantic were higher during glaciations than interglaciations. This is interpreted as indicating a greater proportion of Upper North Atlantic Deep Water (UNADW) relative to southern source waters during glaciations. The contribution of UNADW during interglaciations to the middepth Atlantic remained approximately constant, and the contribution during glaciations may have been as much as 10 % higher in the late Pleistocene than in the late Pliocene. This small increase is in striking contrast to the much larger decrease in glacial Lower North Atlantic Deep Water (LNADW) contribution relative to southern sources, from about 80% to about 20%, that occurred over the past 2.6 m.y. Glacial intensification over the past 2.6 m.y. was probably coupled with a decrease in northward heat transport by the upper limb of the North Atlantic circulation cell, as was previously suggested on the basis of a LNADW record alone. Late Pleistocene (1 Ma-present) delta13C values in the Caribbean Sea were approximately 0.2 per mil higher than they were from 2.6 to 2.0 Ma. The delta13C rise is not due to an increase in the mean ocean delta13C value, nor can it be entirely attributed to an increase in the proportion of high-delta13C source waters. An increase in the delta13C value of the surface source waters must have contributed to the delta13C rise.
    Keywords: 68-502; 68-502_Site; Caribbean Sea/RIDGE; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg68
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 6
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    (Table 2) Stable isotope ratios od Cibicidoides wuellerstorfi from DSDP Site 68-502 (1995)
    PANGAEA
    Details
    Publication Date: 2023-11-25
    Keywords: 68-502_Site; Caribbean Sea/RIDGE; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; COMPCORE; Composite Core; Deep Sea Drilling Project; DEPTH, sediment/rock; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Isotope ratio mass spectrometry; Leg68; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 1038 data points
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    DATA PANGAEA
  • 7
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    (Table 3) Age model of DSDP Site 68-502 (1995)
    PANGAEA
    Details
    Publication Date: 2023-11-25
    Keywords: 68-502_Site; Age model; Age model (Shackleton et al. 1990, Roy Soc Edinburg, Earth Science 81:251-261); Caribbean Sea/RIDGE; COMPCORE; Composite Core; Deep Sea Drilling Project; DEPTH, sediment/rock; DSDP; Glomar Challenger; Leg68
    Type: Dataset
    Format: text/tab-separated-values, 85 data points
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    DATA PANGAEA
  • 8
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    (Table 2) Stable isotope ratios of Uvigerina sp. from DSDP Site 68-502 (1995)
    PANGAEA
    Details
    Publication Date: 2023-11-25
    Keywords: 68-502_Site; Caribbean Sea/RIDGE; COMPCORE; Composite Core; Deep Sea Drilling Project; DEPTH, sediment/rock; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg68; Mass spectrometer Finnigan MAT 252; Sample code/label; Uvigerina sp., δ13C; Uvigerina sp., δ18O
    Type: Dataset
    Format: text/tab-separated-values, 33 data points
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    DATA PANGAEA
  • 9
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    Stable oxygen isotopes of late Quaternary sediments (1997)
    PANGAEA
    In:  Supplement to: Raymo, Maureen E (1997): The timing of major climate terminations. Paleoceanography, 12(4), 577-585, https://doi.org/10.1029/97PA01169
    Details
    Publication Date: 2024-01-09
    Description: A simple, untuned "constant sedimentation rate" timescale developed using three radiometric age constraints and eleven d18O records longer than 0.8 Myr provides strong support for the validity of the SPECMAP timescale of the late Quaternary (Imbrie et al., 1984). In particular, the present study independently confirms the link between major deglaciations (terminations) and increases in northern hemisphere summer radiation at high latitudes and shows that this correlation is not an artifact of orbital tuning. In addition, the excess ice characteristic of late Quaternary "100-kyr" climate cycles typically accumulates when July insolation at 65°N has been unusually low for more than a full precessional cycle, or 〉21 kyr, and once established does not last beyond the next increase in summer insolation. Thus, the timing of the growth and decay of large 100-kyr ice sheets, as depicted in the deep sea d18O record, is strongly (and semipredictably) influenced by eccentricity through its modulation of the orbital precession component of northern hemisphere summer insolation.
    Keywords: Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 5 datasets
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    DATA PANGAEA
  • 10
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    Estimate of mid-Pliocene Paleo-pCO2 for ODP Hole 130-806 (Table 1) (1996)
    PANGAEA
    In:  Supplement to: Raymo, Maureen E; Grant, B; Horowitz, Michael; Rau, Greg H (1996): Mid-Pliocene warmth: stronger greenhouse and stronger conveyor. Marine Micropaleontology, 27(1-4), 313-326, https://doi.org/10.1016/0377-8398(95)00048-8
    Details
    Publication Date: 2024-01-09
    Description: Three million years ago, prior to the onset of northern hemisphere glaciation, global mean temperatures may have been as much as 3.5 °C warmer than at present. We present evidence, based on the carbon isotopic composition of marine organic matter, that atmospheric CO2 levels at this time were on average only about 35% higher than the preindustrial value of 280 ppm. We also present carbon isotopic evidence for stronger thermohaline circulation in the Atlantic Ocean during the warmest intervals and propose that the North Atlantic “conveyor belt” may act as a positive feedback to global warming by enhancing sea ice retreat and decreasing high latitude albedo. Based on our results, it seems unlikely that the mid Pliocene warm period was a doubled CO, world.
    Keywords: -; 130-806; AGE; Carbon/Nitrogen ratio; COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Joides Resolution; Leg130; North Pacific Ocean; Ocean Drilling Program; ODP; Partial pressure of carbon dioxide (ambient atmosphere); Sample code/label; Sea surface temperature, annual mean; δ13C, dissolved inorganic carbon; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 571 data points
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    DATA PANGAEA
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