deLong, Kimberly; Blackburn, Terrence; Caissie, Beth; Addison, Jason A; Stroynowski, Zuzanna N; Reimi Sipala, Maria; Marcantonio, Franco; Ravelo, Ana Christina (2025): Diatom abundance from IODP Site 323-U1340 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974820
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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. Diatom slides were made at the Instituto Português do Mar e da Amosfera using the M2 cleaning and slide preparation methods described in Abrantes et al. (2005, doi:10.1016/j.dsr.2004.05.012), treated in glass jars with no centrifugation. Species were counted via visual identification of >300 specimens when possible at 1050x.
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 | Length, total | TL | mm | deLong, Kimberly | Total length of transects counted | |
| 7 | Mass | Mass | g | deLong, Kimberly | Of bulk sediment represented in transects | |
| 8 | Total counts | Total counts | # | deLong, Kimberly | Counted | Of valves |
| 9 | Valves, total | Valves tot | #/g | deLong, Kimberly | Counted | |
| 10 | Actinocyclus spp. | Actinocyclus spp. | % | deLong, Kimberly | Smear slide analysis | |
| 11 | Azpeitia spp. | Azpeitia spp. | % | deLong, Kimberly | Smear slide analysis | |
| 12 | Shionodiscus spp. | Shionodiscus spp. | % | deLong, Kimberly | Smear slide analysis | |
| 13 | Chaetoceros spp. | Chaetoceros spp. | % | deLong, Kimberly | Smear slide analysis | |
| 14 | Coscinodiscus spp. | Coscinodiscus spp. | % | deLong, Kimberly | Smear slide analysis | |
| 15 | Thalassiosira antarctica | T. antarctica | % | deLong, Kimberly | Smear slide analysis | |
| 16 | Thalassiosira spp. | Thalassiosira spp. | % | deLong, Kimberly | Smear slide analysis | T. hyalina, T. gravida, or T. nordenskioeldii |
| 17 | Rhizosolenia spp. | Rhizosolenia spp. | % | deLong, Kimberly | Smear slide analysis | |
| 18 | Eupyxidicula spp. | Eupyxidicula spp. | % | deLong, Kimberly | Smear slide analysis | |
| 19 | Paralia spp. | Paralia spp. | % | deLong, Kimberly | Smear slide analysis | |
| 20 | Odontella spp. | Odontella spp. | % | deLong, Kimberly | Smear slide analysis | |
| 21 | Stellarima spp. | Stellarima spp. | % | deLong, Kimberly | Smear slide analysis | |
| 22 | Diatoms, other | Diatom oth | % | deLong, Kimberly | Smear slide analysis | Centrics |
| 23 | Neodenticula spp. | Neodenticula spp. | % | deLong, Kimberly | Smear slide analysis | |
| 24 | Thalassiothrix spp. | Thalassiothrix spp. | % | deLong, Kimberly | Smear slide analysis | |
| 25 | Thalassionema spp. | Thalassionema spp. | % | deLong, Kimberly | Smear slide analysis | |
| 26 | Fragilariopsis cylindrus | F. cylindrus | % | deLong, Kimberly | Smear slide analysis | |
| 27 | Diatoms, other | Diatom oth | % | deLong, Kimberly | Smear slide analysis | Pennates |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
907 data points