Nirenberg, Jared E; Gilroy, Sofia; Abell, Jordan T; Herbert, Timothy D: Biogenic silica concentrations in Miocene sediments from ODP Hole 145-884B in the subpolar North Pacific [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993380 (dataset in review)
Abstract:
We measured biogenic silica concentrations in sediment samples from ODP Site 884. Between 30 and 40 mg of dry, pulverized sediment samples were digested in 40 mL of 0.5 M NaOH in a water bath maintained at 85 degrees C for precisely 4 hours. Silicon concentrations were then measured using a modified version of the method of Russell & Johnson (2005) adapted to photometric analysis using an Automated Discrete Analyzer SmartChem 200 from KPM Analytics. To calculate sedimentary concentrations of biogenic silica, biogenic silica was assumed to be 8% water by mass.
Keyword(s):
References:
Rea, David K; Basov, L A; Janecek, Thomas R; Palmer-Julson, Amanda; et al. (1993): Proceedings of the Ocean Drilling Program|145 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 145, 1040 pp, https://doi.org/10.2973/odp.proc.ir.145.1993
Russell, James M; Johnson, Thomas C (2005): A high-resolution geochemical record from Lake Edward, Uganda Congo and the timing and causes of tropical African drought during the late Holocene. Quaternary Science Reviews, 24(12-13), 1375-1389, https://doi.org/10.1016/j.quascirev.2004.10.003
Coverage:
Latitude: 51.450400 * Longitude: 168.337100
Date/Time Start: 1992-08-20T18:00:00 * Date/Time End: 1992-08-24T11:00:00
Minimum DEPTH, sediment/rock: 528.05 m * Maximum DEPTH, sediment/rock: 602.45 m
Event(s):
145-884B * Latitude: 51.450400 * Longitude: 168.337100 * Date/Time Start: 1992-08-20T18:00:00 * Date/Time End: 1992-08-24T11:00:00 * Elevation: -3836.0 m * Penetration: 853.9 m * Recovery: 791.76 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 91 core; 853.9 m cored; 0 m drilled; 92.7 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Nirenberg, Jared E | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Nirenberg, Jared E | Geocode – mbsf | |
| 3 | Age | Age | Ma | Nirenberg, Jared E | ||
| 4 | AGE | Age | ka BP | Nirenberg, Jared E | Geocode | |
| 5 | Biogenic silica | bSiO2 | % | Nirenberg, Jared E | Automated Discrete Analyzer, KPM Analytics, SmartChem® 200 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
210 data points