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  • 379T-J1002; 379T-J1007; biogenic opal; chilean margin; DRILL; Drilling/drill rig; Exp379T; Joides Resolution; opal mass accumulation rate; organic carbon; oxygen isotope; radiocarbon age model; U/Th  (1)
  • 379T-J1007; Accumulation rate, opal; AGE; biogenic opal; Calculated from G/B with site-specific exponential regression equations; chilean margin; Color, green/blue; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Exp379T; Joides Resolution; Opal, biogenic silica; opal mass accumulation rate; organic carbon; oxygen isotope; radiocarbon age model; Sedimentation rate; Site; U/Th  (1)
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  • 1
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    Unknown
    Reconstructed biogenic opal percentage and accumulation for site J1007, Chilean Margin (2022)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Description: Sediment cores at sites J1007 were collected from the Chilean Margin during D/V JOIDES Resolution Expedition 379T (JR100) in 2019. Sedimentary Green/Blue (G/B) ratio data were collected during the expedition. We calculated the opal mass accumulation rate (MAR) at Site J1007 over the last ~150,000 years. Laboratory measurements in this study were conducted in 2020 at Rutgers University.
    Keywords: 379T-J1007; Accumulation rate, opal; AGE; biogenic opal; Calculated from G/B with site-specific exponential regression equations; chilean margin; Color, green/blue; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Exp379T; Joides Resolution; Opal, biogenic silica; opal mass accumulation rate; organic carbon; oxygen isotope; radiocarbon age model; Sedimentation rate; Site; U/Th
    Type: Dataset
    Format: text/tab-separated-values, 54360 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
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    Unknown
    Age model, biogenic opal contents and sedimentary U/Th for sites J1002 and J1007, Chilean Margin (2022)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Description: Sediment cores at sites J1002 and J1007 were collected from the Chilean Margin during D/V JOIDES Resolution Expedition 379T (JR100) in 2019. Sedimentary Green/Blue (G/B) ratio and sedimentary U/Th derived from natural gamma radiation data were collected during the expedition. We generated age models for sites J1002 and J1007 with radiocarbon dates and visual correlation of δ18O records of benthic foraminifera to the LR04 benthic stack. Measured biogenic opal contents and organic carbon contents were compared to the G/B to test the utility of G/B as a proxy for diatom productivity at Sites J1002 and J1007. Sedimentary U/Th was further used as a non-quantitative indicator of redox conditions of the sediments. Lastly, we calculated the opal mass accumulation rate (MAR) at Site J1007 over the last ~150,000 years. Laboratory measurements in this study were conducted in 2020 at Rutgers University.
    Keywords: 379T-J1002; 379T-J1007; biogenic opal; chilean margin; DRILL; Drilling/drill rig; Exp379T; Joides Resolution; opal mass accumulation rate; organic carbon; oxygen isotope; radiocarbon age model; U/Th
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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