Blais-Stevens, A; Clague, John J; Mathewes, Rolf W; Hebda, R J; Bornhold, Brian D (2003): Age determination of ODP sites 169-1033 and 169-1034 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.742957, Supplement to: Blais-Stevens, A et al. (2003): Record of large, Late Pleistocene outburst floods preserved in Saanich Inlet sediments, Vancouver Island, Canada. Quaternary Science Reviews, 22(21-22), 2327-2334, https://doi.org/10.1016/S0277-3791(03)00212-9
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Published: 2003 (exact date unknown) • DOI registered: 2010-08-06
Abstract:
Two anomalous, gray, silty clay beds are present in ODP cores collected from Saanich Inlet, Vancouver Island, British Columbia, Canada. The beds, which date to about 10,500 14C yr BP (11,000 calendar years BP), contain Tertiary pollen derived from sedimentary rocks found only in the Fraser Lowland, on the mainland of British Columbia and Washington just east of the Strait of Georgia. Abundant illite-muscovite in the sediments supports a Fraser Lowland provenance.
The clay beds are probably distal deposits of huge floods that swept through the Fraser Lowland at the end of the Pleistocene. Muddy overflow plumes from these floods crossed the Strait of Georgia and entered Saanich Inlet, where the sediment settled from suspension and blanketed diatom-rich mud on the fiord floor. The likely source of the floods is Late Pleistocene, ice-dammed lakes in the Fraser and Thompson valleys, which are known to have drained at about the time the floods occurred.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 48.614742 * Median Longitude: -123.501645 * South-bound Latitude: 48.590550 * West-bound Longitude: -123.503330 * North-bound Latitude: 48.650000 * East-bound Longitude: -123.499910
Date/Time Start: 1996-08-19T16:30:00 * Date/Time End: 1996-08-21T04:45:00
Minimum DEPTH, sediment/rock: 52.80 m * Maximum DEPTH, sediment/rock: 88.40 m
Event(s):
169-1033B * Latitude: 48.590630 * Longitude: -123.503330 * Date/Time: 1996-08-19T16:30:00 * Elevation: -228.7 m * Penetration: 105 m * Recovery: 106.35 m * Location: Coastal waters of SE Alaska * Campaign: Leg169S * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 12 cores; 105 m cored; 0 m drilled; 101.3 % recovery
169-1033C * Latitude: 48.590750 * Longitude: -123.503330 * Date/Time: 1996-08-19T23:00:00 * Elevation: -226.1 m * Penetration: 72.7 m * Recovery: 75.87 m * Location: Coastal waters of SE Alaska * Campaign: Leg169S * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 72.7 m cored; 0 m drilled; 104.4 % recovery
169-1033D * Latitude: 48.590550 * Longitude: -123.503330 * Date/Time: 1996-08-20T03:45:00 * Elevation: -226.5 m * Penetration: 69.7 m * Recovery: 73.78 m * Location: Coastal waters of SE Alaska * Campaign: Leg169S * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 69.7 m cored; 0 m drilled; 105.9 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Blais-Stevens, A | DSDP/ODP/IODP sample designation | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Distance, relative | Dist rel | m | Blais-Stevens, A | position relative to clay beds | |
| 5 | Comment | Comment | Blais-Stevens, A | position relative to clay beds | ||
| 6 | Age, dated | Age dated | ka | Blais-Stevens, A | Age, 14C AMS | Ages corrected to d13C = 25.0 per mil PDB with a marine reservoir correction of 801 +/- 23 years (Robinson and Thompson, 1981). Datum is AD 2000. |
| 7 | Age, dated, standard deviation | Age dated std dev | ± | Blais-Stevens, A | Age, 14C AMS | |
| 8 | Age, minimum/young | Age min | ka | Blais-Stevens, A | Age, 14C calibrated | Determined from dendrocalibrated data of Stuiver and Brazuinas (1993) and Stuiver and Pearson (1993). The range represents the 95% confidence interval (+/- 2 sigma) calculated with error multiplier of 1. |
| 9 | Age, maximum/old | Age max | ka | Blais-Stevens, A | Age, 14C calibrated | Determined from dendrocalibrated data of Stuiver and Brazuinas (1993) and Stuiver and Pearson (1993). The range represents the 95% confidence interval (+/- 2 sigma) calculated with error multiplier of 1. |
| 10 | Sample code/label 2 | Sample label 2 | Blais-Stevens, A | Center for Accelerator Mass Spectrometer Number, Lawrence Livermore National Laboratory, California | ||
| 11 | Age, dated material | Dated material | Blais-Stevens, A |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
207 data points