Citation:

S0277-3791(03)00212-9

Name: Age determination of ODP sites 169-1033 and 169-1034
Published: 2003
License: https://creativecommons.org/licenses/by/3.0/

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Published: 2003 (exact date unknown) • DOI registered: 2010-08-06

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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: * 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: * 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: * 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

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Sample label	3 Depth sed [m]	4 Dist rel [m]	5 Comment	6 Age dated [ka]	7 Age dated std dev [±]	8 Age min [ka]	9 Age max [ka]	10 Sample label 2	11 Dated material
169-1033B	169-1033B-6H-4,110	55.50	0.51	above upper bed	10.19	0.77	10.354	10.929	30701	Shell, Axinopsida serricata
169-1033B	169-1033B-6H-5,135	57.00	0.12	below lower bed	10.60	0.76	11.002	11.502	30702	Shell, Macoma calcarea
169-1033B	169-1033B-6H-5,141	57.10	0.17	below lower bed	10.70	0.75	11.053	11.693	30703	Shell, Macoma calcarea
169-1033B	169-1033B-6H-6,13	57.50	0.40	below lower bed	10.71	0.76	11.050	11.737	30704	Shell, Macoma calcarea
169-1033B	169-1033B-6H-6,88	58.20	1.15	below lower bed	11.05	0.76	11.718	12.386	30705	Shell, Macoma calcarea
169-1033C	169-1033C-6H-1,134	55.80	0.20	below lower bed	10.22	0.76	10.405	10.944	33484	Shell, fragment
169-1033D	169-1033D-6H-2,52	52.80	2.27	above upper bed	8.89	0.76	9.714	10.037	33775	Wood
169-1033D	169-1033D-6H-4,14	56.20	0.22	between beds	10.48	0.75	10.914	11.123	33487	Shell, fragment
169-1033D	169-1033D-6H-4,101	57.20	0.05	below lower bed	10.63	0.76	11.017	11.554	33488	Shell, fragment
169-1033D	169-1033D-6H-4,137	57.50	0.41	below lower bed	10.89	0.76	11.433	12.152	33489	Shell, Macoma carlottensis
169-1034B	169-1034B-8H-2,57	72.80	4.20	above upper bed	9.79	0.75	9.964	10.235	30714	Shell, Macoma calcarea
169-1034B	169-1034B-8H-3,53	74.50	2.74	above upper bed	10.28	0.76	10.479	10.977	30693	Shell
169-1034B	169-1034B-8H-5,16	76.50	0.11	above upper bed	10.80	0.77	11.148	11.994	30715	Shell, Macoma calcarea
169-1034B	169-1034B-8H-5,134	78.00	0.07	below lower bed	10.49	0.75	10.920	11.133	30694	Shell
169-1034B	169-1034B-8H-6,66	78.70	0.89	below lower bed	10.71	0.75	11.059	11.712	30695	Shell
169-1034B	169-1034B-8H-7,10	80.10	1.83	below lower bed	11.07	0.76	11.752	12.411	30696	Shell
169-1034D	169-1034D-8H-1,44	73.50	4.31	above upper bed	9.90	0.76	10.033	10.389	33630	Shell, fragment
169-1034D	169-1034D-8H-3,143	77.50	0.32	above upper bed	10.69	0.75	11.048	11.664	33632	Shell, Nuculana fossa
169-1034D	169-1034D-8H-4,96	88.40	0.39	below lower bed	10.61	0.75	11.015	11.495	33633	Shell, fragment
169-1034E	169-1034E-8H-1,12	70.45	9.60	above upper bed	9.45	0.76	9.541	9.920	33496	Shell, Macoma calcarea
169-1034E	169-1034E-9H-1,19	81.10	0.19	below lower bed	10.11	0.75	11.136	12.155	33786	Wood, Taxus brevifolia
169-1034E	169-1034E-9H-1,69	81.60	0.69	below lower bed	10.41	0.76	12.088	12.559	33787	Wood
169-1034E	169-1034E-9H-1,133	82.20	1.33	below lower bed	11.45	0.76	12.435	12.798	33497	Shell, Macoma calcarea