Li, Chen; Clementi, Vincent; Bova, Samantha C; Rosenthal, Yair; Childress, Laurel; Wright, James D; Jian, Zhimin (2022): Measured biogenic opal percentage for sites J1002 and J1007, Chilean Margin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.946045, In: Li, C et al. (2022): Age model, biogenic opal contents and sedimentary U/Th for sites J1002 and J1007, Chilean Margin [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.946044
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Abstract:
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 data were collected during the expedition. Measured biogenic opal contents were compared to the G/B to test the utility of G/B as a proxy for diatom productivity. Laboratory measurements in this study were conducted in 2020 at Rutgers University.
Keyword(s):
Funding:
Ministry of Science and Technology of the People's Republic of China (MOST), grant/award no. 2018YFE0202401
National Science Foundation (NSF), grant/award no. 1756241: Digging Deeper with the JR100: Extending high resolution paleoclimate records from the Chilean Margin to the Eemian
Coverage:
Median Latitude: -41.306967 * Median Longitude: -74.676828 * South-bound Latitude: -46.071607 * West-bound Longitude: -75.687167 * North-bound Latitude: -36.542327 * East-bound Longitude: -73.666490
Date/Time Start: 2019-07-31T22:08:00 * Date/Time End: 2019-08-13T16:30:00
Minimum DEPTH, sediment/rock: 0.105 m * Maximum DEPTH, sediment/rock: 124.482 m
Event(s):
379T-J1002 * Latitude: -46.071607 * Longitude: -75.687167 * Date/Time Start: 2019-07-31T22:08:00 * Date/Time End: 2019-08-03T13:30:00 * Elevation: -1534.8 m * Campaign: Exp379T * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)
379T-J1007 * Latitude: -36.542327 * Longitude: -73.666490 * Date/Time Start: 2019-08-12T09:10:00 * Date/Time End: 2019-08-13T16:30:00 * Elevation: -787.1 m * Campaign: Exp379T * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)
Comment:
Further funding: NETL Methane Hydrates Fellowship Program
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Li, Chen | |||
| 2 | Site | Site | Li, Chen | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Li, Chen | Geocode | |
| 4 | AGE | Age | ka BP | Li, Chen | Geocode | |
| 5 | Color, green/blue | Green/blue | Li, Chen | RGB channels, line-scan camera | ||
| 6 | Opal, biogenic silica | bSiO2 | % | Li, Chen | Wet-alkaline digestion, spectrophotometer | |
| 7 | Comment | Comment | Li, Chen |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
144 data points