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deLong, Kimberly; Blackburn, Terrence; Caissie, Beth; Addison, Jason A; Stroynowski, Zuzanna N; Reimi Sipala, Maria; Marcantonio, Franco; Ravelo, Ana Christina (2025): Silica weight percent from IODP Site 323-U1340 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974824

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Published: 2025-02-13 • DOI registered: 2025-03-14

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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. Bulk sediment weight% nitrogen (wt% Si) was measured on an Elemental Analyzer in the Stable Isotopes Laboratory at the University of California Santa Cruz using 80 mg of freeze-dried, pulverized, homogenized sediment samples.
Keyword(s):
Age model; biogenic opal; Diatom assemblage; nitrogen content; Silicon isotopes; Uranium-Thorium
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Sample code/labelSample labelDSDP/ODP/IODP sample designation
3 HalfHalf
4 Depth, compositeDepth compmcdIODP Depth Scale Terminology
5 AGEAgeka BPAge, 14C calibrated, CALIB (Stuiver & Reimer, 1993)Geocode
6 Opal, biogenic silicabSiO2%Element analyser CHN[wt%]
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
304 data points

Data

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

1 
Event		2 
Sample label		3 
Half		4 
Depth comp [mcd]		5 
Age [ka BP]		6 
bSiO2 [%]
323-U1340A 323-U1340A-1H-1,5-7Archive (A)-0.00055.952130.74
323-U1340A323-U1340A-1H-1,10-12Archive (A)0.04956.212333.40
323-U1340A323-U1340A-1H-1,30-32Archive (A)0.24957.253020.34
323-U1340A323-U1340A-1H-1,40-42Archive (A)0.34957.773421.23
323-U1340A323-U1340A-1H-1,55-57Archive (A)0.49958.553922.03
323-U1340A323-U1340A-1H-1,65-67Archive (A)0.59959.074226.63
323-U1340A323-U1340A-1H-1,75-77Archive (A)0.69959.594621.89
323-U1340A323-U1340A-1H-1,80-82Archive (A)0.74959.854820.95
323-U1340A323-U1340A-1H-1,85-87Archive (A)0.799510.115013.75
323-U1340A323-U1340A-1H-1,89-90Archive (A)0.834510.297119.01
323-U1340A323-U1340A-1H-1,91-92Archive (A)0.854510.401226.23
323-U1340A323-U1340A-1H-1,95-96Archive (A)0.894510.609325.40
323-U1340A323-U1340A-1H-1,98-99Archive (A)0.924510.765422.37
323-U1340A323-U1340A-1H-1,104-105Archive (A)0.984511.077619.44
323-U1340A323-U1340A-1H-1,108-109Archive (A)1.024511.285825.85
323-U1340A323-U1340A-1H-1,111-112Archive (A)1.044511.389824.30
323-U1340A323-U1340A-1H-1,113-114Archive (A)1.074511.545920.46
323-U1340A323-U1340A-1H-1,114-115Archive (A)1.084511.598033.61
323-U1340A323-U1340A-1H-1,116-117Archive (A)1.104511.720018.66
323-U1340A323-U1340A-1H-1,117-118Archive (A)1.114511.930013.41
323-U1340A323-U1340A-1H-1,119-120Archive (A)1.134512.217012.03
323-U1340A323-U1340A-1H-1,120-121Archive (A)1.144512.350012.44
323-U1340A323-U1340A-1H-1,121-122Archive (A)1.154512.490017.99
323-U1340A323-U1340A-1H-1,122-123Archive (A)1.164512.630016.91
323-U1340A323-U1340A-1H-1,123-124Archive (A)1.174512.770018.53
323-U1340A323-U1340A-1H-1,124-125Archive (A)1.184512.868622.57
323-U1340A323-U1340A-1H-1,125-126Archive (A)1.194512.925924.66
323-U1340A323-U1340A-1H-1,128-129Archive (A)1.224513.097823.46
323-U1340A323-U1340A-1H-1,130-131Archive (A)1.244513.212447.18
323-U1340A323-U1340A-1H-1,133-134Archive (A)1.274513.384340.08
323-U1340A323-U1340A-1H-1,136-137Archive (A)1.304513.556240.13
323-U1340A323-U1340A-1H-1,138-139Archive (A)1.324513.670843.15
323-U1340A323-U1340A-1H-1,140-141Archive (A)1.344513.785447.70
323-U1340A323-U1340A-1H-1,142-143Archive (A)1.364513.900031.03
323-U1340A323-U1340A-1H-1,144-145Archive (A)1.384513.923043.86
323-U1340A323-U1340A-1H-1,145-146Archive (A)1.394513.938730.77
323-U1340A323-U1340A-1H-1,146-147Archive (A)1.404513.954443.86
323-U1340A323-U1340A-1H-1,147-148Archive (A)1.414513.970149.00
323-U1340A323-U1340A-1H-2,0-1Archive (A)1.444514.017151.79
323-U1340A323-U1340A-1H-2,3-4Archive (A)1.474514.064252.56
323-U1340A323-U1340A-1H-2,5-6Archive (A)1.494514.095654.96
323-U1340A323-U1340A-1H-2,8-9Archive (A)1.524514.142747.83
323-U1340A323-U1340A-1H-2,10-11Archive (A)1.544514.174041.81
323-U1340A323-U1340A-1H-2,13-14Archive (A)1.574514.221135.53
323-U1340A323-U1340A-1H-2,14-15Archive (A)1.584514.236843.83
323-U1340A323-U1340A-1H-2,16-17Archive (A)1.604514.268242.21
323-U1340A323-U1340A-1H-2,20-21Archive (A)1.644514.330944.43
323-U1340A323-U1340A-1H-2,24-25Archive (A)1.684514.393715.68
323-U1340A323-U1340A-1H-2,26-27Archive (A)1.704514.425142.77
323-U1340A323-U1340A-1H-2,28-29Archive (A)1.724514.456447.04
323-U1340A323-U1340A-1H-2,33-34Archive (A)1.774514.534953.88
323-U1340A323-U1340A-1H-2,35-36Archive (A)1.794514.566360.72
323-U1340A323-U1340A-1H-2,36-37Archive (A)1.804514.581947.64
323-U1340A323-U1340A-1H-2,39-40Archive (A)1.834514.629041.93
323-U1340A323-U1340A-1H-2,45-47Archive (A)1.899514.750111.73
323-U1340A323-U1340A-1H-2,50-52Archive (A)1.949514.845010.34
323-U1340A323-U1340A-1H-2,55-57Archive (A)1.999514.939910.59
323-U1340A323-U1340A-1H-2,60-62Archive (A)2.049515.034811.26
323-U1340A323-U1340A-1H-2,65-67Archive (A)2.099515.129811.41
323-U1340A323-U1340A-1H-2,75-77Archive (A)2.199515.319611.83
323-U1340A323-U1340A-1H-2,95-97Archive (A)2.399515.699213.81
323-U1340A323-U1340A-1H-2,115-117Archive (A)2.599516.078912.96
323-U1340A323-U1340A-1H-2,120-122Archive (A)2.649516.173813.67
323-U1340A323-U1340A-1H-2,135-137Archive (A)2.799516.458610.81
323-U1340A323-U1340A-1H-3,5-7Archive (A)2.999516.83829.36
323-U1340A323-U1340A-1H-3,25-27Archive (A)3.199517.217910.16
323-U1340A323-U1340A-1H-3,31-33Archive (A)3.259517.33188.70
323-U1340A323-U1340A-1H-3,45-47Archive (A)3.399517.596611.90
323-U1340D 323-U1340D-1H-3,14-16Working (W)3.412217.620010.64
323-U1340D323-U1340D-1H-3,26-28Working (W)3.532217.84028.34
323-U1340D323-U1340D-1H-3,44-46Working (W)3.712218.17057.60
323-U1340D323-U1340D-1H-3,62-64Working (W)3.892218.50098.54
323-U1340D323-U1340D-1H-3,86-87Working (W)4.132218.94138.62
323-U1340D323-U1340D-1H-3,104-106Working (W)4.312219.271610.94
323-U1340D323-U1340D-1H-3,116-118Working (W)4.432219.491813.32
323-U1340D323-U1340D-1H-3,128-130Working (W)4.552219.712110.19