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  • PANGAEA  (11)
  • John Wiley & Sons
  • 2010-2014  (11)
Document type
Keywords
Publisher
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Year
  • 1
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    Abundance of Gamma-A nifH genes in the Gulf of Aqaba (Red Sea) (2013)
    PANGAEA
    Details
    Publication Date: 2023-02-12
    Keywords: Bottle, Niskin; Calculated after Luo et al. (2012); Date/Time of event; DEPTH, water; Diazotrophs, total biomass as carbon; Event label; Fluorescence-based quantitative real-time PCR (qPCR); Latitude of event; Longitude of event; Malkat-Shva2005-09-06; Malkat-Shva2005-09-07; MAREDAT_Diazotrophs_Collection; NIS; Red Sea/Gulf of Aqaba; Trichodesmium, abundance expressed in number of nifH gene copies; Trichodesmium, biomass as carbon; Trichodesmium abundance, total
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Geochemistry of sediment core Kinneret_AA3 (2013)
    PANGAEA
    In:  Supplement to: Quintana Krupinski, Nadine B; Marlon, Jennifer R; Nishri, Ami; Street, Joseph H; Paytan, Adina (2013): Climatic and human controls on the late Holocene fire history of northern Israel. Quaternary Research, 80(03), 396-405, https://doi.org/10.1016/j.yqres.2013.06.012
    Details
    Publication Date: 2023-12-05
    Description: Long-term fire histories provide insight into the effects of climate, ecology and humans on fire activity; they can be generated using accumulation rates of charcoal and soot black carbon in lacustrine sediments. This study uses both charcoal and black carbon, and other paleoclimate indicators from Lake Kinneret (Sea of Galilee), Israel, to reconstruct late Holocene variations in biomass burning and aridity. We compare the fire history data with a regional biomass-burning reconstruction from 18 different charcoal records and with pollen, climate, and population data to decipher the relative impacts of regional climate, vegetation changes, and human activity on fire. We show a long-term decline in fire activity over the past 3070 years, from high biomass burning ~3070-1750 cal yr BP to significantly lower levels after ~1750 cal yr BP. Human modification of the landscape (e.g., forest clearing, agriculture, settlement expansion and early industry) in periods of low to moderate precipitation appears to have been the greatest cause of high biomass burning during the late Holocene in southern Levant, while wetter climate apparently reduced fire activity during periods of both low and high human activity.
    Keywords: Accumulation rate, black carbon mass; Accumulation rate, charcoal; AGE; Calcium carbonate; Carbon, organic, total; Carbon/Nitrogen ratio; DEPTH, sediment/rock; GC; Gravity corer; Kinneret_AA3; Nitrogen, total; δ13C, black carbon; δ13C, carbonate; δ13C, organic carbon; δ15N; δ18O, carbonate
    Type: Dataset
    Format: text/tab-separated-values, 640 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Mass accumulation rates of IODP Hole 320-U1333C (2013)
    PANGAEA
    In:  Supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142, https://doi.org/10.1029/2012PA002347
    Details
    Publication Date: 2023-12-14
    Description: Understanding changes in export production through time provides insight into the response of the biological pump to global climate change, particularly during periods of rapid climate change. In this study we consider what role changes in export production may have had on carbon sequestration and how this may have contributed to the onset of the Eocene-Oligocene transition (EOT). In addition, we consider if these export production variations are dominantly controlled by orbitally driven climate variability. To accomplish these objectives, we report changes in export production in the Eastern Equatorial Pacific (EEP) from Site U1333 across the EOT reconstructed from a high-resolution record of marine barite accumulation rates (BAR). BAR fluctuations suggest synchronous declines in export production associated with the two-step increases in oxygen isotopes that define the transition. The reduction in productivity across the EOT suggests that the biological pump did not contribute to carbon sequestration and the cooling over this transition. We also report a previously undocumented peak in EEP export productivity before the EOT onset. This peak is consistent with export production proxies from the Southern Ocean, potentially implying a global driver for this precursor event. We propose that this enhanced export production and the associated carbon sequestration in the late Eocene may have contributed to the pCO2 drawdown at the onset of Antarctic glaciation.
    Keywords: 320-U1333C; Accumulation rate, barite; Accumulation rate, mass; AGE; Age, reference; Barite; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Exp320; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Mass; Pacific Equatorial Age Transect I; Sample code/label; Sample mass; Sedimentation rate
    Type: Dataset
    Format: text/tab-separated-values, 3038 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    (Table 1) Age model of ODP Leg 198 sites (2010)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 198-1209; 198-1210; 198-1211; Age model; Ageprofile Datum Description; COMPCORE; Composite Core; DEPTH, sediment/rock; Event label; Joides Resolution; Leg198; North Pacific Ocean; Ocean Drilling Program; ODP; Reference/source
    Type: Dataset
    Format: text/tab-separated-values, 39 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    (Table S1) CaCO3 and barite content and accumulation rates in ODP Leg 198 holes and DSDP Hole 85-574C (2010)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 198-1209A; 198-1209B; 198-1210A; 198-1210B; 198-1211; 199-1218A; 85-574C; Accumulation rate, barite; Accumulation rate, calcium carbonate; Accumulation rate, mass; Aralia sp.; Barite; Calcium carbonate; Calculated; COMPCORE; Composite Core; Coulometry; Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Joides Resolution; Latitude of event; Leg198; Leg199; Leg85; Longitude of event; North Pacific/TROUGH; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label; Sequential leaching technique
    Type: Dataset
    Format: text/tab-separated-values, 1352 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    (Table S2) Sand fraction of ODP Leg 198 holes (2010)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 198-1209B; 198-1210B; 198-1211B; AGE; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Grain size, sieving; Joides Resolution; Leg198; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label; Size fraction 〉 0.063 mm, sand
    Type: Dataset
    Format: text/tab-separated-values, 180 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Barite Accumulation rates across Paleocene-Eocene Thermal Maximum (PETM) (2014)
    PANGAEA
    In:  Supplement to: Ma, Zhongwu; Gray, E; Thomas, Ellen; Murphy, Brandon; Zachos, James C; Paytan, Adina (2014): Carbon sequestration during the Palaeocene–Eocene Thermal Maximum by an efficient biological pump. Nature Geoscience, 7(5), 382-388, https://doi.org/10.1038/ngeo2139
    Details
    Publication Date: 2024-01-09
    Description: Barite accumulation rates (BAR) have been measured from 12 DSDP/ODP site globally (DSDP site 525, 549 and ODP site 690, 738, 1051, 1209, 1215, 1220, 1221, 1263,1265 and 1266A) to reconstruct the export production across Paleocene Eocene Thermal Maximum (PETM) around 55.9 million year ago. Our results suggesting a general increase in export productivity. We propose that changes in marine ecosystems, resulting from high atmospheric partial pressure of CO2 and ocean acidification, led to enhanced carbon export from the photic zone to depth, thereby increasing the efficiency of the biological pump. We estimate that an annual carbon export flux out of the euphotic zone and into the deep ocean waters could have amounted to about 15 Gt during the PETM. About 0.4% of this carbon is expected to have entered the refractory dissolved organic pool, where it could be sequestered from the atmosphere for tens of thousands of years. Our estimates are consistent with the amount of carbon redistribution expected for the recovery from the PETM.
    Keywords: 113-690B; 119-738C; 171-1051B; 198-1209A; 199-1215A; 199-1220B; 199-1221C; 208-1263C; 208-1263D; 208-1265A; 208-1266A; 74-525A; 80-549; Accumulation rate, barium; Accumulation rate, mass; AGE; Barite; Blake Nose, North Atlantic Ocean; Deep Sea Drilling Project; Density, dry bulk; Depth, composite; Depth, composite revised; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Indian Ocean; Joides Resolution; Latitude of event; Leg113; Leg119; Leg171B; Leg198; Leg199; Leg208; Leg74; Leg80; Longitude of event; North Atlantic/SPUR; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label; South Atlantic/CREST; South Atlantic Ocean; Walvis Ridge, Southeast Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 1235 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Carbonate and barite content accross the Eocene/Oligocene boundary of ODP Leg 198 sites, Shatsky Rise (2012)
    PANGAEA
    In:  Supplement to: Averyt, Kristen; Calhoun, Michael; Schmalz, Lyndsie; Paytan, Adina (2005): Data report: Carbonate and barite trends across the Eocene/Oligocene boundary at Shatsky Rise, ODP Leg 198. In: Bralower, TJ; Premoli Silva, I; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 198, 1-16, https://doi.org/10.2973/odp.proc.sr.198.106.2005
    Details
    Publication Date: 2024-01-09
    Description: The barite and CaCO3 content (in weight percent) of marine sediments can be used to determine spatial and temporal changes in export production (organic and carbonate carbon flux) and/or CaCO3 preservation (inorganic carbon burial). Here we report barite and CaCO3 content in Eocene/Oligocene (E/O) boundary sediments from locations drilled on Shatsky Rise during Ocean Drilling Program Leg 198. Records of these indexes may be used along with other data to determine how the major E/O boundary climatic transition (initiation of Antarctic glaciation and resultant ocean-climate system changes) affected marine export production/preservation at Shatsky Rise. Such data are necessary to elucidate the timing and phasing of changes in the carbon cycle relative to fluctuations in oceanographic conditions across this climatically important interval.
    Keywords: 198-1209A; 198-1209B; 198-1209C; 198-1210A; 198-1210B; 198-1211A; 198-1211B; 198-1211C; DRILL; Drilling/drill rig; Joides Resolution; Leg198; North Pacific Ocean; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Late Eocene to early Oligocene carbonate and barite accumulation rates in the Pacific Basin (2010)
    PANGAEA
    In:  Supplement to: Griffith, Elizabeth M; Calhoun, Michael; Thomas, Ellen; Averyt, Kristen; Erhardt, Andrea M; Bralower, Timothy J; Lyle, Mitchell W; Olivarez Lyle, Annette; Paytan, Adina (2010): Export productivity and carbonate accumulation in the Pacific Basin at the transition from a greenhouse to icehouse climate (late Eocene to early Oligocene). Paleoceanography, 25(3), PA3212, https://doi.org/10.1029/2010PA001932
    Details
    Publication Date: 2024-01-09
    Description: The late Eocene through earliest Oligocene (40-32 Ma) spans a major transition from greenhouse to icehouse climate, with net cooling and expansion of Antarctic glaciation shortly after the Eocene/Oligocene (E/O) boundary. We investigated the response of the oceanic biosphere to these changes by reconstructing barite and CaCO3 accumulation rates in sediments from the equatorial and North Pacific Ocean. These data allow us to evaluate temporal and geographical variability in export production and CaCO3 preservation. Barite accumulation rates were on average higher in the warmer late Eocene than in the colder early Oligocene, but cool periods within the Eocene were characterized by peaks in both barite and CaCO3 accumulation in the equatorial region. We infer that climatic changes not only affected deep ocean ventilation and chemistry, but also had profound effects on surface water characteristics influencing export productivity. The ratio of CaCO3 to barite accumulation rates, representing the ratio of particulate inorganic C accumulation to Corg export, increased dramatically at the E/O boundary. This suggests that long-term drawdown of atmospheric CO2 due to organic carbon deposition to the seafloor decreased, potentially offsetting decreasing pCO2 levels and associated cooling. The relatively larger increase in CaCO3 accumulation compared to export production at the E/O suggests that the permanent deepening of the calcite compensation depth (CCD) at that time stems primarily from changes in deep water chemistry and not from increased carbonate production.
    Keywords: Deep Sea Drilling Project; DSDP; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Reduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification (2013)
    PANGAEA
    In:  Supplement to: Crook, Elizabeth Derse; Cohen, Anne L; Rebolledo-Vieyra, Mario; Hernandez, Laura; Paytan, Adina (2013): Reduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification. Proceedings of the National Academy of Sciences, 110(27), 11044-11049, https://doi.org/10.1073/pnas.1301589110
    Details
    Publication Date: 2024-03-15
    Description: As the surface ocean equilibrates with rising atmospheric CO2, the pH of surface seawater is decreasing with potentially negative impacts on coral calcification. A critical question is whether corals will be able to adapt or acclimate to these changes in seawater chemistry. We use high precision CT scanning of skeletal cores of Porites astreoides, an important Caribbean reef-building coral, to show that calcification rates decrease significantly along a natural gradient in pH and aragonite saturation (Omega arag). This decrease is accompanied by an increase in skeletal erosion and predation by boring organisms. The degree of sensitivity to reduced Oarag measured on our field corals is consistent with that exhibited by the same species in laboratory CO2 manipulation experiments. We conclude that the Porites corals at our field site were not able to acclimatize enough to prevent the impacts of local ocean acidification on their skeletal growth and development, despite spending their entire lifespan in low pH, low Omega arag seawater.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcification rate; Calcification rate, ratio; Calcification rate, standard deviation; Calcification rate, standard error; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Density; Density, standard deviation; Density, standard error; Field observation; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Linear extension; Linear extension, standard deviation; Linear extension, standard error; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Porites astreoides; Salinity; Single species; Species; Temperature, water; Thickness; Thickness, standard deviation; Thickness, standard error; Treatment; Tropical; Volume ratio
    Type: Dataset
    Format: text/tab-separated-values, 479 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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