deLong, Kimberly; Blackburn, Terrence; Caissie, Beth; Addison, Jason A; Stroynowski, Zuzanna N; Reimi Sipala, Maria; Marcantonio, Franco; Ravelo, Ana Christina (2025): Uranium-Thorium analysis from IODP Site 323-U1340 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974825
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Published: 2025-02-13 • DOI registered: 2025-03-14
Abstract:
The Bølling-Allerød deglacial event is marked by high diatom productivity and opal deposition throughout the subarctic Pacific. To investigate the cause of this event, we quantified several productivity-related sedimentary parameters that reflect the near-surface biogeochemistry from the Integrated Ocean Drilling Program (IODP) Site 323-U1340 in the Bering Sea. Uranium-Thorium analysis was conducted via isotope dilution analysis in the Marcantonio lab at Texas A&M University. 0.3-0.4 g of sediment were spiked with 229Th and 236U, acid digested, separated and purified via anion exchange chromatography as outlined in Loveley et al. (2017), and measured on an Element XR magnetic sector ICPMS (Fleisher & Anderson, 2003; doi:10.1016/S0967-0645(02)00591-X).
Keyword(s):
Supplement to:
deLong, Kimberly; Blackburn, Terrence; Caissie, Beth; Addison, Jason A; Stroynowski, Zuzanna N; Sipala, M R; Marcantonio, Franco; Ravelo, Ana Christina (2025): Bølling-Allerød Productivity in the Subarctic Pacific Driven by Seasonal Upwelling. Geophysical Research Letters, 52(8), e2024GL109614, https://doi.org/10.1029/2024GL109614
Coverage:
Median Latitude: 53.398896 * Median Longitude: -179.521415 * South-bound Latitude: 53.396673 * West-bound Longitude: -179.521623 * North-bound Latitude: 53.400013 * East-bound Longitude: -179.521000
Date/Time Start: 2009-07-22T00:00:00 * Date/Time End: 2009-07-22T00:00:00
Minimum Elevation: -1294.7 m * Maximum Elevation: -1293.4 m
Event(s):
323-U1340 * Latitude: 53.400000 * Longitude: -179.521000 * Date/Time: 2009-07-22T00:00:00 * Elevation: -1294.0 m * Location: Bering Sea * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)
323-U1340A * Latitude: 53.400013 * Longitude: -179.521622 * Elevation: -1294.7 m * Recovery: 535.91 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 71 cores; 604.5 m cored; 89 % recovered
323-U1340D * Latitude: 53.396673 * Longitude: -179.521623 * Elevation: -1293.4 m * Recovery: 27.23 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 3 cores; 26.3 m cored; 104 % recovered
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | deLong, Kimberly | |||
| 2 | Sample code/label | Sample label | deLong, Kimberly | DSDP/ODP/IODP sample designation | ||
| 3 | Half | Half | deLong, Kimberly | |||
| 4 | Depth, composite | Depth comp | mcd | deLong, Kimberly | IODP Depth Scale Terminology | |
| 5 | AGE | Age | ka BP | deLong, Kimberly | Age, 14C calibrated, CALIB (Stuiver & Reimer, 1993) | Geocode |
| 6 | Thorium-230, activity | 230Th act | dpm/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 7 | Thorium-232, activity | 232Th act | dpm/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 8 | Uranium-234, activity | 234U act | dpm/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 9 | Uranium-238, activity | 238U act | dpm/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 10 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | ||
| 11 | Uranium-234/Thorium ratio | 234U/Th | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | Detrital | |
| 12 | Uranium, authigenic | U auth | dpm/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 13 | Thorium-230 ingrowth, decay-products | 230Th in 0 prod | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | ||
| 14 | Thorium-230 excess, decay-corrected | 230Th xs,0 | dpm/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 15 | Thorium-230, initial | 230Th initial | dpm/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 16 | Thorium-230, flux normalized | 230Th flux norm | g/cm2/ka | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 17 | Thorium-232, flux normalized | 232Th flux norm | g/cm2/ka | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 18 | Accumulation rate, uranium, authigenic | Acc rate U auth | dpm/cm2/ka | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS | |
| 19 | Uranium-238, authigenic | 238U auth | µg/g | deLong, Kimberly | Uranium-thorium isotope dilution measurement by MC-ICPMS |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
391 data points
Data
| 1 Event | 2 Sample label | 3 Half | 4 Depth comp [mcd] | 5 Age [ka BP] | 6 230Th act [dpm/g] | 7 232Th act [dpm/g] | 8 234U act [dpm/g] | 9 238U act [dpm/g] | 10 (234U/238U) | 11 234U/Th | 12 U auth [dpm/g] | 13 230Th in 0 prod | 14 230Th xs,0 [dpm/g] | 15 230Th initial [dpm/g] | 16 230Th flux norm [g/cm2/ka] | 17 232Th flux norm [g/cm2/ka] | 18 Acc rate U auth [dpm/cm2/ka] | 19 238U auth [µg/g] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 323-U1340A | 323-U1340A-1H-1,5.0-7.0 | A (Archive) | -0.0005 | 5.9521 | 2.07 | 0.47 | 1.58 | 1.41 | 1.12 | 0.7 | 1.08 | 0.06 | 1.67 | 1.77 | 2.00 | 3.85 | 2.16 | 1.45 |
| 323-U1340A | 323-U1340A-1H-1,30.0-32.0 | A (Archive) | 0.2495 | 7.2530 | 2.63 | 0.60 | 4.10 | 3.58 | 1.15 | 0.7 | 3.16 | 0.08 | 1.96 | 2.11 | 1.68 | 4.13 | 5.30 | 4.23 |
| 323-U1340A | 323-U1340A-1H-1,55.0-57.0 | A (Archive) | 0.4995 | 8.5539 | 2.10 | 0.57 | 3.86 | 3.45 | 1.12 | 0.7 | 3.05 | 0.10 | 1.41 | 1.54 | 2.30 | 5.38 | 7.01 | 4.09 |
| 323-U1340A | 323-U1340A-1H-1,85.0-87.0 | A (Archive) | 0.7995 | 10.1150 | 1.98 | 0.92 | 3.53 | 3.18 | 1.11 | 0.7 | 2.54 | 0.12 | 1.04 | 1.16 | 3.05 | 11.51 | 7.72 | 3.40 |
| 323-U1340A | 323-U1340A-1H-1,89.0-90.0 | A (Archive) | 0.8345 | 10.2971 | 1.88 | 0.65 | 2.87 | 2.57 | 1.12 | 0.7 | 2.12 | 0.12 | 1.18 | 1.31 | 2.69 | 7.19 | 5.70 | 2.83 |
| 323-U1340A | 323-U1340A-1H-1,114.0-115.0 | A (Archive) | 1.0845 | 11.5980 | 1.56 | 0.29 | 4.66 | 4.18 | 1.12 | 0.7 | 3.98 | 0.13 | 0.85 | 0.96 | 3.68 | 4.39 | 14.65 | 5.33 |
| 323-U1340A | 323-U1340A-1H-1,117.0-118.0 | A (Archive) | 1.1145 | 11.9300 | 1.70 | 0.79 | 1.68 | 1.55 | 1.08 | 0.7 | 1.00 | 0.13 | 1.02 | 1.15 | 3.08 | 9.98 | 3.07 | 1.33 |
| 323-U1340A | 323-U1340A-1H-1,123.0-124.0 | A (Archive) | 1.1745 | 12.7700 | 1.27 | 0.56 | 3.32 | 2.97 | 1.12 | 0.7 | 2.58 | 0.13 | 0.54 | 0.61 | 5.81 | 13.37 | 14.99 | 3.45 |
| 323-U1340A | 323-U1340A-1H-1,125.0-126.0 | A (Archive) | 1.1945 | 12.9259 | 2.64 | 0.77 | 5.02 | 4.38 | 1.15 | 0.7 | 3.84 | 0.13 | 1.59 | 1.80 | 1.96 | 6.21 | 7.54 | 5.14 |
| 323-U1340A | 323-U1340A-1H-1,140.0-141.0 | A (Archive) | 1.3445 | 13.7854 | 1.78 | 0.33 | 5.83 | 5.10 | 1.14 | 0.7 | 4.87 | 0.14 | 0.88 | 1.00 | 3.53 | 4.79 | 17.20 | 6.52 |
| 323-U1340A | 323-U1340A-1H-1,145.0-146.0 | A (Archive) | 1.3945 | 13.9387 | 1.59 | 0.55 | 4.60 | 4.12 | 1.12 | 0.7 | 3.74 | 0.14 | 0.69 | 0.78 | 4.52 | 10.21 | 16.89 | 5.00 |
| 323-U1340A | 323-U1340A-1H-2,0.0-1.0 | A (Archive) | 1.4445 | 14.0171 | 1.85 | 0.31 | 7.04 | 6.19 | 1.14 | 0.7 | 5.97 | 0.14 | 0.79 | 0.91 | 3.90 | 4.96 | 23.28 | 8.00 |
| 323-U1340A | 323-U1340A-1H-2,16.0-17.0 | A (Archive) | 1.6045 | 14.2682 | 2.00 | 0.28 | 7.14 | 6.64 | 1.08 | 0.7 | 6.44 | 0.14 | 0.87 | 1.00 | 3.54 | 4.07 | 22.81 | 8.63 |
| 323-U1340A | 323-U1340A-1H-2,26.0-27.0 | A (Archive) | 1.7045 | 14.4251 | 1.88 | 0.24 | 6.93 | 6.02 | 1.15 | 0.7 | 5.85 | 0.15 | 0.85 | 0.98 | 3.61 | 3.56 | 21.14 | 7.84 |
| 323-U1340A | 323-U1340A-1H-2,26.0-27.0 | A (Archive) replicate | 1.7045 | 14.4251 | 1.75 | 0.23 | 6.62 | 5.98 | 1.11 | 0.7 | 5.82 | 0.15 | 0.73 | 0.84 | 4.20 | 3.96 | 24.41 | 7.79 |
| 323-U1340A | 323-U1340A-1H-2,36.0-37.0 | A (Archive) | 1.8045 | 14.5819 | 1.72 | 0.34 | 5.38 | 4.66 | 1.15 | 0.7 | 4.42 | 0.15 | 0.82 | 0.95 | 3.73 | 5.21 | 16.49 | 5.92 |
| 323-U1340A | 323-U1340A-1H-2,55.0-57.0 | A (Archive) | 1.9995 | 14.9399 | 2.89 | 1.59 | 2.73 | 2.51 | 1.09 | 0.7 | 1.40 | 0.15 | 1.56 | 1.81 | 1.96 | 12.78 | 2.73 | 1.87 |
| 323-U1340A | 323-U1340A-1H-2,95.0-97.0 | A (Archive) | 2.3995 | 15.6992 | 2.36 | 1.12 | 3.03 | 2.77 | 1.09 | 0.7 | 1.99 | 0.16 | 1.26 | 1.47 | 2.41 | 11.09 | 4.79 | 2.66 |
| 323-U1340A | 323-U1340A-1H-2,115.0-117.0 | A (Archive) | 2.5995 | 16.0789 | 3.61 | 1.72 | 4.25 | 3.91 | 1.09 | 0.7 | 2.71 | 0.16 | 1.97 | 2.30 | 1.54 | 10.87 | 4.17 | 3.62 |
| 323-U1340A | 323-U1340A-1H-3,5.0-7.0 | A (Archive) | 2.9995 | 16.8382 | 2.68 | 1.52 | 2.54 | 2.39 | 1.06 | 0.7 | 1.33 | 0.17 | 1.40 | 1.64 | 2.16 | 13.49 | 2.87 | 1.78 |
| 323-U1340A | 323-U1340A-1H-3,31.0-33.0 | A (Archive) | 3.2595 | 17.3318 | 2.45 | 1.43 | 2.22 | 2.09 | 1.06 | 0.7 | 1.09 | 0.17 | 1.26 | 1.49 | 2.38 | 13.96 | 2.59 | 1.46 |
| 323-U1340D | 323-U1340D-1H-3,86.0-88.0 | W (Working) | 4.1322 | 18.9413 | 2.67 | 1.34 | 2.44 | 2.27 | 1.08 | 0.7 | 1.33 | 0.19 | 1.48 | 1.78 | 1.99 | 10.96 | 2.65 | 1.78 |
| 323-U1340D | 323-U1340D-1H-3,86.0-88.0 | W (Working) replicate | 4.1322 | 18.9413 | 2.63 | 1.39 | 2.49 | 2.32 | 1.07 | 0.7 | 1.35 | 0.19 | 1.41 | 1.68 | 2.10 | 11.99 | 2.83 | 1.80 |