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  • 2020-2024  (27)
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  • 1
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    The PhanSST global database of Phanerozoic sea surface temperature proxy data (2022)
    Nature Research
    Details
    Publication Date: 2024-02-07
    Description: Paleotemperature proxy data form the cornerstone of paleoclimate research and are integral to understanding the evolution of the Earth system across the Phanerozoic Eon. Here, we present PhanSST, a database containing over 150,000 data points from five proxy systems that can be used to estimate past sea surface temperature. The geochemical data have a near-global spatial distribution and temporally span most of the Phanerozoic. Each proxy value is associated with consistent and queryable metadata fields, including information about the location, age, and taxonomy of the organism from which the data derive. To promote transparency and reproducibility, we include all available published data, regardless of interpreted preservation state or vital effects. However, we also provide expert-assigned diagenetic assessments, ecological and environmental flags, and other proxy-specific fields, which facilitate informed and responsible reuse of the database. The data are quality control checked and the foraminiferal taxonomy has been updated. PhanSST will serve as a valuable resource to the paleoclimate community and has myriad applications, including evolutionary, geochemical, diagenetic, and proxy calibration studies.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 2
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    Individual ostracode valve analyses of Sclerocypris clavularis from modern Lake Turkana sediments (2023)
    PANGAEA
    Details
    Publication Date: 2023-10-11
    Description: We provide stable carbon (δ¹³C) and oxygen (δ¹⁸O) isotope measurements in individual calcitic valves of extant ostracode species, Sclerocypris clavularis, from modern sediments in 17 sites across Lake Turkana, eastern Africa. These sediments were collected using a modified Ekman dredge during May-November, 1979. Pooled statistics of these individual ostracode valve analyses (IOVA) of δ¹³C and δ¹⁸O measurements (n = 329) at each site show strong correlations with lake hydrological parameters. Within-site variance in IOVA-δ¹³C is larger (~60%) than that of IOVA-δ¹⁸O. Yet, pooled averages exhibit a systematic pattern with higher δ values towards the southern part of the lake, away from Omo River inflow, which is the largest riverine input into Lake Turkana (comprising ~90% of overall inflows). We suggest that the latitudinal δ¹³C gradient may arise from low riverine δ¹³C and low organic matter δ¹³C as a productivity response to nutrient-rich Omo River inflow towards the north. The δ¹⁸O pattern may be explained by the diminishing influence of Omo River inflows and more evaporation driving higher IOVA-δ¹⁸O values towards the windier, southern basin. We conclude that pooled IOVA statistics in Omo-Turkana sediments can aid interpretations of past regional paleohydrology and its variability in this basin.
    Keywords: lake sediments; ostracodes; oxygen and carbon isotopes
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Individual ostracode valve analyses of Sclerocypris clavularis from modern Lake Turkana sediments - Measurements (2023)
    PANGAEA
    Details
    Publication Date: 2023-10-11
    Description: This dataset contains measurements of individual ostracode valve analyses (IOVA), including stable oxygen (δ¹⁸O) and carbon (δ¹³C) isotopes, and length/width, and mass measurements, at 17 sites across Lake Turkana, eastern Africa. These sediments were collected using a modified Ekman dredge during May–November 1979. The stable isotopic measurements were conducted at the [Paleo² Laboratory at the University of Arizona|https://thirumalai.geo.arizona.edu/] on a Thermo Kiel IV Carbonate Device coupled to a 253 Plus IRMS; the length/width measurements were performed on a MeijiTechno HDZ7000TS Digital Zoom Microscope System, and mass of each valve was measured using a Sartorius Cubis II Ultra-Micro Balance. Details can be found in https://doi.org/10.1029/2022GC010790
    Keywords: 79-130F; 79-147F; 79-158F; 79-160F; 79-164F; 79-166F; 79-168F; 79-170F; 79-183F; 79-189F; 79-193F; 79-194F; 79-204F; 79-77F; BS125; BS90; BS91; Digital Zoom Microscope System, MeijiTechno, HDZ7000TS; EG; Ekman grab; Elevation of event; Event label; Hole; lake sediments; Lake Turkana, Africa; Latitude of event; Longitude of event; Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device; Ostracoda, length; Ostracoda, mass; Ostracoda, δ13C; Ostracoda, δ18O; ostracodes; oxygen and carbon isotopes; Ultra-micro lab balance, Sartorius Cubis II
    Type: Dataset
    Format: text/tab-separated-values, 1974 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Individual ostracode valve analyses of Sclerocypris clavularis from modern Lake Turkana sediments - Inter-site means (2023)
    PANGAEA
    Details
    Publication Date: 2023-10-11
    Description: This dataset contains pooled statistics of stable isotope and shell measurements of individual ostracode valve analyses (IOVA) alongside available in-situ measurements of pH, surface and bottom water temperature (BWT), total number of valves analyzed per site, IOVA-δ¹⁸O, IOVA-δ¹³C, shell mass, shell length/width, along with their average and standard deviations at 17 sites across Lake Turkana, eastern Africa. These modern sediments were collected using a modified Ekman dredge during May to November 1979. The stable isotopic measurements were conducted at the [Paleo² Laboratory at the University of Arizona|https://thirumalai.geo.arizona.edu/] on a Thermo Kiel IV Carbonate Device coupled to a 253 Plus IRMS; the length/width measurements were performed on a MeijiTechno HDZ7000TS Digital Zoom Microscope System, and mass of each valve was measured using a Sartorius Cubis II Ultra-Micro Balance. Details about the materials can be found in https://doi.org/10.1029/2022GC010790
    Keywords: 79-130F; 79-147F; 79-158F; 79-160F; 79-164F; 79-166F; 79-168F; 79-170F; 79-183F; 79-189F; 79-193F; 79-194F; 79-204F; 79-77F; Bottom water temperature; BS125; BS90; BS91; Digital Zoom Microscope System, MeijiTechno, HDZ7000TS; Distance; EG; Ekman grab; Elevation of event; Event label; lake sediments; Lake Turkana, Africa; Latitude of event; Longitude of event; Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device; Number of measurements; Ostracoda, length; Ostracoda, length, standard deviation; Ostracoda, mass; Ostracoda, mass, standard deviation; Ostracoda, δ13C; Ostracoda, δ13C, standard deviation; Ostracoda, δ18O; Ostracoda, δ18O, standard deviation; ostracodes; oxygen and carbon isotopes; pH; Sea surface temperature; Site; Ultra-micro lab balance, Sartorius Cubis II
    Type: Dataset
    Format: text/tab-separated-values, 243 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Compiled Mg/Ca data from PlioVAR (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Keywords: 130-806A; 130-806B; 165-999A; 184-1143B; 184-1143C; 202-1241; 202-1241A; 202-1241B; 202-1241C; 22-214; 306-U1313B; 306-U1313C; Age; alkenone SST; benthic and planktonic foraminifers; Caribbean Sea; COMPCORE; Composite Core; d18O of planktic foraminifera; Date/Time of event; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp306; Extracted from PlioVAR KM5c SST Database; Foraminifera, planktic, Magnesium/Calcium ratio; foraminifera oxygen isotopes; From literature; Glomar Challenger; Indian Ocean//RIDGE; Joides Resolution; Latitude of event; Leg130; Leg165; Leg184; Leg202; Leg22; Literature search; Longitude of event; Mg/Ca-based sea surface temperature; North Atlantic Climate 2; Northern Hemisphere glaciation; North Pacific Ocean; PAGES_PlioVAR; Pleistocene; Pliocene; PlioVAR - Pliocene climate variability over glacial-interglacial timescales; Reference/source; Sample code/label; Sea surface temperature; Site; South China Sea; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Uniform resource locator/link to raw data file; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 26274 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Compiled planktonic d18O data from PlioVAR (2023)
    PANGAEA
    Details
    Publication Date: 2024-02-19
    Keywords: 114-704A; 114-704B; 161-978A; 165-999A; 184-1143A; 184-1143B; 184-1143C; 184-1148A; 184-1148B; 22-214; 306-U1313B; 306-U1313C; Age; Alboran Sea; alkenone SST; benthic and planktonic foraminifers; Caribbean Sea; d18O of planktic foraminifera; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Event label; Exp306; Extracted from PlioVAR KM5c SST Database; Foraminifera, planktic δ18O; foraminifera oxygen isotopes; From literature; Glomar Challenger; Indian Ocean//RIDGE; Joides Resolution; Leg114; Leg161; Leg165; Leg184; Leg22; Literature search; Mg/Ca-based sea surface temperature; North Atlantic Climate 2; Northern Hemisphere glaciation; PAGES_PlioVAR; Pleistocene; Pliocene; PlioVAR - Pliocene climate variability over glacial-interglacial timescales; Reference/source; Sample code/label; Sample ID; Site; South Atlantic Ocean; South China Sea; Species, unique identification; Uniform resource locator/link to raw data file; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 35788 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    (Table S1) Age model of ODP Site 130-807 (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-05
    Keywords: 130-807; Age model; Ageprofile Datum Description; Carbon isotopes; COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Indonesian gateway; Joides Resolution; Leg130; Mixed-layer species; North Pacific Ocean; Ocean Drilling Program; ODP; planktic foraminifera; Pliocene; Sample code/label; West Pacific Warm Pool
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    (Table S2) Age model of DSDP Site 22-214 (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-05
    Keywords: 22-214; Age model; Ageprofile Datum Description; Carbon isotopes; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Indian Ocean//RIDGE; Indonesian gateway; Leg22; Mixed-layer species; planktic foraminifera; Pliocene; Sample code/label; West Pacific Warm Pool
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Mixed-layer species abundance at DSDP Site 22-214 (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-05
    Keywords: 22-214_Site; AGE; Carbon isotopes; COMPCORE; Composite Core; Deep Sea Drilling Project; DSDP; DSDP/ODP/IODP sample designation; Foraminifera, planktic mixed-layer-dwelling species; Glomar Challenger; Indian Ocean//RIDGE; Indonesian gateway; Leg22; Mixed-layer species; planktic foraminifera; Pliocene; Sample code/label; Sample ID; West Pacific Warm Pool
    Type: Dataset
    Format: text/tab-separated-values, 801 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Synthesis of sea surface temperature and foraminifera stable isotope data spanning the mid-Pliocene warm period and early Pleistocene (PlioVAR) (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Description: The Pliocene Epoch (~2.6–5.3 million years ago, Ma) was characterized by a warmer than present climate with smaller Northern Hemisphere ice sheets, and therefore offers an example of a climate system in long-term equilibrium with current or predicted near-future carbon dioxide concentrations. The end of the Pliocene (~2.6 Ma) is marked by further ice-sheet expansion and intensification of glacial (cold) stages, referred to as the "intensification of Northern Hemisphere Glaciation" (iNHG). Here we present the data used to assess the spatial and temporal variability of ocean temperatures and ice-volume indicators through the late Pliocene and early Pleistocene (from 3.3 to 2.4 Ma) to determine the character of this climate transition. The data come from the Atlantic, Pacific, Indian and Southern Ocean, as well as some marginal seas. Here we present the synthesized alkenone sea-surface temperature, Mg/Ca sea-surface temperature, planktonic foraminifera d18O and benthic foraminifera d18O data which were used in our synthesis. Although the original data sets are largely published, here we present the alkenone SST records calculated using the BAYSPLINE calibration where these were not part of the original publication; the Mg/Ca-SST records where we revised the absolute SSTs; any data sets where we revised the age model.
    Keywords: alkenone SST; benthic and planktonic foraminifers; d18O of planktic foraminifera; foraminifera oxygen isotopes; Mg/Ca-based sea surface temperature; Northern Hemisphere glaciation; PAGES_PlioVAR; Pleistocene; Pliocene; PlioVAR - Pliocene climate variability over glacial-interglacial timescales
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
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