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  • 2010-2014  (8)
  • 2012  (8)
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  • 2010-2014  (8)
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  • 1
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    (Supplementary Table 1) Carbonate accumulation rate dataset of the equatorial Pacific (2012)
    PANGAEA
    Details
    Publication Date: 2024-05-06
    Keywords: 199-1215A; 199-1217A; 199-1217B; 199-1218A; 199-1218B; 199-1218C; 199-1219A; 199-1220A; 199-1220B; 320-U1331A; 320-U1331C; 320-U1332A; 320-U1332B; 320-U1333A; 320-U1333B; 320-U1334A; 320-U1335A; 320-U1336A; 321-U1337A; 321-U1337B; 321-U1338A; 321-U1338B; 85-574; 85-574C; 8-69; 8-69A; 8-70; 8-70A; Accumulation rate, calcium carbonate; Accumulation rate, mass; AGE; Calcium carbonate; Calculated; Center for Marine Environmental Sciences; Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; Depth, sediment revised; DRILL; Drilling/drill rig; DSDP; Event label; Exp320; Exp321; Glomar Challenger; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; LATITUDE; Leg199; Leg8; Leg85; LONGITUDE; MARUM; North Pacific/BASIN; North Pacific/TROUGH; North Pacific Ocean; Ocean Drilling Program; ODP; Pacific Equatorial Age Transect I; Pacific Equatorial Age Transect II / Juan de Fuca; Paleoelevation; Reference/source; Sample code/label; Sedimentation rate
    Type: Dataset
    Format: text/tab-separated-values, 34059 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Carbonate compensation depth (CCD) of the of the equatorial Pacific (2012)
    PANGAEA
    Details
    Publication Date: 2024-05-06
    Keywords: AGE; Center for Marine Environmental Sciences; Deep Sea Drilling Project; Depth, reference; DSDP; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; MARUM; Ocean Drilling Program; ODP
    Type: Dataset
    Format: text/tab-separated-values, 228 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Radiolarian chronology and fauna across the middle/late Eocene boundary at ODP Hole 171-1052A (2012)
    PANGAEA
    In:  Supplement to: Kamikuri, Shin-Ichi; Wade, Bridget S (2012): Radiolarian magnetobiochronology and faunal turnover across the middle/late Eocene boundary at Ocean Drilling Program Site 1052 in the western North Atlantic Ocean. Marine Micropaleontology, 88-89, 41-53, https://doi.org/10.1016/j.marmicro.2012.03.001
    Details
    Publication Date: 2024-04-25
    Description: Quantitative radiolarian assemblage analysis has been conducted on middle and upper Eocene sediments (Zones RP16 to RP18) from Ocean Drilling Program Site 1052 in order to establish the radiolarian magnetobiochronology and determine the nature of the faunal turnover across the middle/late Eocene boundary in the western North Atlantic Ocean. We recognize and calibrate forty-five radiolarian bioevents to the magneto- and cyclo-stratigraphy from Site 1052 to enhance the biochronologic resolution for the middle and late Eocene. Our data is compared to sites in the equatorial Pacific (Leg 199) to access the diachrony of biostratigraphic events. Eleven bioevents are good biostratigraphic markers for tropical/subtropical locations (south of 30°N). The primary markers (lowest occurrences of Cryptocarpium azyx and Calocyclas bandyca) which are tropical zonal boundary markers for Zones RP17 and RP18 provide robust biohorizons for correlation and age determination from the low to middle latitudes and between the Atlantic and Pacific Oceans. Some other radiolarian bioevents are highly diachronous (〈1 million years) between oceanic basins. A significant faunal turnover of radiolarians is recognized within Chron C17n.3n (37.7 Ma) where 13 radiolarian species disappear rapidly in less than 100 kyr and 4 new species originate. The radiolarian faunal turnover coincides with a major extinction in planktonic foraminifera. We name the turnover phase, the Middle/Late Eocene Turnover (MLET). Assemblage analysis reveals the MLET to be associated with a decrease in low-mid latitude taxa and increase in cosmopolitan taxa and radiolarian accumulation rates. The MLET might be related to increased biological productivity rather than to surface-water cooling.
    Keywords: 171-1052A; Blake Nose, North Atlantic Ocean; DRILL; Drilling/drill rig; Joides Resolution; Leg171B; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    (Appendix) Radiolarian abundances in ODP Hole 171-1052A (2012)
    PANGAEA
    Details
    Publication Date: 2024-04-25
    Keywords: 171-1052A; Accumulation rate, radiolarians by number; Actinomma spp.; AGE; Amphipternis sp.; Amphymenium amphistylium; Anthocyrtidium adiaphorum; Anthocyrtis collaris; Anthocyrtis mespilus; Anthocyrtoma serrulata group; Anthocyrtoma ventricosa group; Artophormis barbadensis; Artophormis dominasinensis; Bathropyramis spp.; Blake Nose, North Atlantic Ocean; Botryocella pauciperforata; Botryostrobus hollisi; Buryella aff. clinata; Buryella tetradica; Calocyclas aphradia; Calocyclas bandyca; Calocyclas hispida; Calocyclas sp.; Calocyclas spp.; Calocyclas turris; Calocycloma ampulla; Cenosphaera oceanica; Cenosphaera sp.; Cenosphaera spp.; Clathrolychnus sp.; Cornutella spp.; Counting 〉63 µm fraction; Cryptocarpium azyx; Cryptocarpium cf. ornatum; Cryptocarpium cylindricum; Cryptocarpium ornatum; Cryptocarpium sp.; Cryptocarpium spp.; Cycladophora spatiosa group; Cycladophora spp.; Dendrospyris acuta; Dendrospyris didiceros group; Dendrospyris fragoides; Dendrospyris pannosa; Dendrospyris spp.; Depth, composite; DEPTH, sediment/rock; Dictyocephalus obtusa; Dictyophimus sp.; Dictyophimus spp.; Dictyopodium eurylophus; Dictyoprora armadillo; Dictyoprora gibsoni; Dictyoprora mongolfieri; Dictyoprora pirum; Dictyoprora sp.; Dictyoprora spp.; Dictyospyris gigas; Dictyospyris sp.; Dictyospyris spp.; Dictyospyris tristoma; Dorcadospyris argisca; Dorcadospyris carinata; Dorcadospyris conflues; Dorcadospyris costatescens; Dorcadospyris diaboliscus; Dorcadospyris spp.; Dorcadospyris transitionalis; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Eucoronis hertwigii group; Eucyrtidim spp.; Eucyrtidium hillaby group; Eucyrtidium sp.; Eucyrtidium ventriosum; Eusyringium fistuligerum; Evenness of species; Excentrodiscus aff. oculatus; Excentrodiscus sp.; Excentrodiscus spp.; Excentrosphaerella spp.; Gorgospyris quinqueramas; Heliodiscus hexastericus; Hexacontium microprora; Hexacontium sp.; Hexacontium spp.; Intercore correlation; Joides Resolution; Larcopyle compositus; Larcopyle hayesi hayesi; Leg171B; Lipmanella sp.; Liriospyris sp.; Liriospyris spinulosa; Lithelius hexaxyphophorus; Lithelius spp.; Lithocyclia aff. stella; Lithocyclia aristotelis group; Lithocyclia ocellus; Lithocyclis spp.; Lithomelissa aff. ehrenbergi; Lithomelissa lautouri; Lithomelissa sp.; Lithomelissa spp.; Lithomitra docilis; Lithopera sp.; Lophocyrtis aspera; Lophocyrtis jacchia; Lophocyrtis spp.; Lophophaena radians; Lophophaena spp.; Lychnocanium alma; Lychnocanium continuum; Lychnocanium waiareka; Lychnocanoma amphitrite; Lychnocanoma babylonis group; Lychnocanoma bellum; Lychnocanoma lucerna; Lychnocanoma sp.; Lychnocanoma tridentatum; Lychnocanoma tripodium; Lychnocanoma turgidum; Ocean Drilling Program; ODP; Periphaena heliasteriscus; Periphaena spp.; Periphaena tripyramis tripyramis; Phormocyrtis embolum; Phormocyrtis striata striata; Phormospyris tricostata; Phorticium pylonium; Phorticium spp.; Plectodiscus runanganus; Podocyrtis aff. diamesa; Podocyrtis chalara; Podocyrtis diamesa; Podocyrtis goetheana; Podocyrtis papalis; Podocyrtis spp.; Podocyrtis trachodes; Porodiscus parvus; Prunopyle spp.; Pterocodon campana; Pterocodon cf. tenellus; Pterocyrtidium zitteli; Radiolarians; Radiolarians, assemblage; Radiolarians, deep water; Rhopalocanium ornatum; Rhopalodictyum californicum; Sample code/label; Sethocyrtis chrysallis; Sethostylus dentatus; Shannon Diversity Index; Species richness; Spongodiscus nitidus; Spongodiscus pulcher; Spongodiscus spp.; Spongopyle spiralis; Spongotrochus rhabdostylus; Spongurus bilobatus; Spyral rads; Stephanastrum rhombus; Stephanastrum spp.; Stichopilidium sphinx; Stichopodium gracile; Stylatractus neptunus; Stylatractus santaaenae; Stylatractus spp.; Stylodictya echinastrum; Stylodictya inaequalispina; Stylodictya minima; Stylodictya splendens; Stylodictya tainemplekta; Stylodictya targaeformis; Stylodiscus endostylus; Stylosphaera laevis; Stylosphaera spp.; Stylosphaera sulcata; Stylotrochus quadribrachiatus multibrachiatus; Suttonium anomalum; Thecosphaerella rotunda; Thecosphaerella sp.; Thecosphaerella spp.; Theocorys anapographa; Theocorys perforalvus; Theocorys puriri; Theocorys sp.; Theocorys spongoconus; Theocorys spp.; Theocotyle robusta; Theocotylissa alpha; Theocotylissa ficus; Thrysocyrtis spp.; Thyrsocyrtis bromia; Thyrsocyrtis krooni; Thyrsocyrtis lochites; Thyrsocyrtis lyaea; Thyrsocyrtis norrisi; Thyrsocyrtis rhizodon; Thyrsocyrtis sp.; Thyrsocyrtis spp.; Thyrsocyrtis tetracantha; Thyrsocyrtis triacantha; Tripospyris eucolpos; Tristylospyris triceros; Valkyria pukapuka; Zygocircus buetschlii; Zygocircus cf. cimelium; Zygocircus spp.
    Type: Dataset
    Format: text/tab-separated-values, 17341 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    (Table 1) Biostratigraphic datum levels at ODP Hole 171-1052A compared with equatorial Pacific events (2012)
    PANGAEA
    Details
    Publication Date: 2024-04-25
    Keywords: 171-1052A; Age, maximum/old; Age, minimum/young; Age model; Age model, optional; Ageprofile Datum Description; Blake Nose, North Atlantic Ocean; Depth, composite bottom; Depth, composite top; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg171B; Number; Ocean Drilling Program; ODP; Radiolarian zone; Sample code/label; Sample code/label 2
    Type: Dataset
    Format: text/tab-separated-values, 757 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Carbonate compensation depth (CCD) reconstruction of the equatorial Pacific (2012)
    PANGAEA
    In:  Supplement to: Pälike, Heiko; Lyle, Mitchell W; Nishi, Hiroshi; Raffi, Isabella; Ridgwell, Andy; Gamage, Kusali; Klaus, Adam; Acton, Gary D; Anderson, Louise; Backman, Jan; Baldauf, Jack G; Beltran, Catherine; Bohaty, Steven M; Bown, Paul R; Busch, William H; Channell, James E T; Chun, Cecily O J; Delaney, Margaret Lois; Dewang, Pawan; Dunkley Jones, Tom; Edgar, Kirsty M; Evans, Helen F; Fitch, Peter; Foster, Gavin L; Gussone, Nikolaus; Hasegawa, Hitoshi; Hathorne, Ed C; Hayashi, Hiroki; Herrle, Jens O; Holbourn, Ann E; Hovan, Steven A; Hyeong, Kiseong; Iijima, Koichi; Ito, Takashi; Kamikuri, Shin-Ichi; Kimoto, Katsunori; Kuroda, Junichiro; Leon-Rodriguez, Lizette; Malinverno, Alberto; Moore, Theodore C; Murphy, Brandon; Murphy, Daniel P; Nakamur, Hideto; Ogane, Kaoru; Ohneiser, Christian; Richter, Carl; Robinson, Rebecca S; Rohling, Eelco J; Romero, Oscar E; Sawada, Ken; Scher, Howie D; Schneider, Leah; Sluijs, Appy; Takata, Hiroyuki; Tian, Jun; Tsujimoto, Akira; Wade, Bridget S; Westerhold, Thomas; Wilkens, Roy H; Williams, Trevor J; Wilson, Paul A; Yamamoto, Yuhji; Yamamoto, Shinya; Yamazaki, Toshitsugu; Zeebe, Richard E (2012): A Cenozoic record of the equatorial Pacific carbonate compensation depth. Nature, 488, 609-614, https://doi.org/10.1038/nature11360
    Details
    Publication Date: 2024-05-06
    Description: Atmospheric carbon dioxide concentrations and climate are regulated on geological timescales by the balance between carbon input from volcanic and metamorphic outgassing and its removal by weathering feedbacks; these feedbacks involve the erosion of silicate rocks and organic-carbon-bearing rocks. The integrated effect of these processes is reflected in the calcium carbonate compensation depth, which is the oceanic depth at which calcium carbonate is dissolved. Here we present a carbonate accumulation record that covers the past 53 million years from a depth transect in the equatorial Pacific Ocean. The carbonate compensation depth tracks long-term ocean cooling, deepening from 3.0-3.5 kilometres during the early Cenozoic (approximately 55 million years ago) to 4.6 kilometres at present, consistent with an overall Cenozoic increase in weathering. We find large superimposed fluctuations in carbonate compensation depth during the middle and late Eocene. Using Earth system models, we identify changes in weathering and the mode of organic-carbon delivery as two key processes to explain these large-scale Eocene fluctuations of the carbonate compensation depth.
    Keywords: Center for Marine Environmental Sciences; Deep Sea Drilling Project; DSDP; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; MARUM; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    A Cenozoic record of the equatorial Pacific carbonate compensation depth (2012)
    Nature Publishing Group
    In:  Nature, 488 (7413). pp. 609-614.
    Details
    Publication Date: 2017-03-01
    Description: Atmospheric carbon dioxide concentrations and climate are regulated on geological timescales by the balance between carbon input from volcanic and metamorphic outgassing and its removal by weathering feedbacks; these feedbacks involve the erosion of silicate rocks and organic-carbon-bearing rocks. The integrated effect of these processes is reflected in the calcium carbonate compensation depth, which is the oceanic depth at which calcium carbonate is dissolved. Here we present a carbonate accumulation record that covers the past 53 million years from a depth transect in the equatorial Pacific Ocean. The carbonate compensation depth tracks long-term ocean cooling, deepening from 3.0-3.5 kilometres during the early Cenozoic (approximately 55 million years ago) to 4.6 kilometres at present, consistent with an overall Cenozoic increase in weathering. We find large superimposed fluctuations in carbonate compensation depth during the middle and late Eocene. Using Earth system models, we identify changes in weathering and the mode of organic-carbon delivery as two key processes to explain these large-scale Eocene fluctuations of the carbonate compensation depth.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Format: text
    DOI: 10.1038/nature11360
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 8
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    Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico (2012)
    Geological Society of America (GSA)
    Details
    Publication Date: 2012-02-01
    Description: The Eocene-Oligocene transition (EOT; ca. 33–34 Ma) was a time of pronounced climatic change, marked by the establishment of continental-scale Antarctic ice sheets. The timing and extent of temperature change associated with the EOT is controversial. Here we present multiproxy EOT climate records (~15–34 k.y. resolution) from St. Stephens Quarry, Alabama, USA, derived from foraminiferal Mg/Ca, d18O, and TEX86. We constrain sea-surface temperatures (SSTs) in the latest Eocene and early Oligocene and address the issue of climatic cooling during the EOT. Paleotemperatures derived from planktic foraminifera Mg/Ca and TEX86 are remarkably consistent and indicate late Eocene subtropical SSTs of 〉28 °C. There was substantial and accelerated cooling of SSTs (3–4 °C) through the latest Eocene “precursor” d18O shift (EOT-1), prior to Oligocene Isotope-1 (Oi-1). Our multispecies planktic foraminiferal d18O records diverge at the E/O boundary (33.7 Ma), signifying enhanced seasonality in the earliest Oligocene in the Gulf of Mexico.
    Print ISSN: 0091-7613
    Electronic ISSN: 1943-2682
    Topics: Geosciences
    Published by Geological Society of America (GSA)
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    PAPER CURRENT
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