Nkwain, Gael; Belanger, Christina L; Alvarez Zarikian, Carlos A: Benthic foraminifera assemblage counts and diagenetic characteristics from IODP Site 323-U1339 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995970 (dataset in review)
Abstract:
Benthic foraminifera were quantitatively identified (>150µm size fraction) in 158 samples from IODP site U1339 on the Umnak Plateau, southeastern Bering Sea collected by Expedition 323 Scientists in 2009. Benthic foraminiferal assemblages and diagenetic characteristics data were collected to reconstruct methane seepage and benthic oxygenation in the Bering Sea across Marine Isotope Stages 7 to 12. Approximately 20 cc of sediment per 1 cm sample was freeze-dried, weighed, and washed over a 63 µm sieve with distilled water. The sand fraction was oven-dried at 50°C and all benthic foraminifera >150 µm were picked under a stereomicroscope. Samples yielding >300 individuals were split with a microsplitter to obtain a representative aliquot of ~250–300 specimens; samples with fewer than 300 individuals were picked in their entirety. Presence of authigenic carbonate was determined for all samples using a stereomicroscope and recorded as a simple yes for presence and no for absence. For multivariate analysis, counts were converted to proportional abundances and a principal coordinates analysis (PCO) conducted. The site scores of the first three PCO axes are reported.
Keyword(s):
Supplement to:
Nkwain, Gael; Belanger, Christina L; Alvarez Zarikian, Carlos A (submitted): Tracing Past Methane Seepage and Hypoxia Events in the Bering Sea (IODP Site U1339) using Benthic Foraminiferal Assemblages. Paleoceanography and Paleoclimatology
Coverage:
Median Latitude: 54.669962 * Median Longitude: -169.981468 * South-bound Latitude: 54.669818 * West-bound Longitude: -169.981515 * North-bound Latitude: 54.670105 * East-bound Longitude: -169.981420
Minimum DEPTH, sediment/rock: 66.489 m * Maximum DEPTH, sediment/rock: 120.626 m
Event(s):
323-U1339C * Latitude: 54.670105 * Longitude: -169.981420 * Elevation: -1867.6 m * Recovery: 199.4 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 194.8 m cored; 102 % recovered
323-U1339D * Latitude: 54.669818 * Longitude: -169.981515 * Elevation: -1879.4 m * Recovery: 206 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 22 cores; 200 m cored; 103 % recovered
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Nkwain, Gael | |||
| 2 | Latitude of event | Latitude | Nkwain, Gael | |||
| 3 | Longitude of event | Longitude | Nkwain, Gael | |||
| 4 | Elevation of event | Elevation | m | Nkwain, Gael | ||
| 5 | Sample code/label | Sample label | Nkwain, Gael | DSDP/ODP/IODP sample designation | ||
| 6 | DEPTH, sediment/rock | Depth sed | m | Nkwain, Gael | IODP Depth Scale Terminology | Geocode – CCSF |
| 7 | Ammonia sp. | Ammonia sp. | # | Nkwain, Gael | Counting >150 µm fraction | |
| 8 | Brizalina panayensis | B. panayensis | # | Nkwain, Gael | Counting >150 µm fraction | |
| 9 | Cassidulina neoteretis | C. neoteretis | # | Nkwain, Gael | Counting >150 µm fraction | |
| 10 | Chilostomella oolina | C. oolina | # | Nkwain, Gael | Counting >150 µm fraction | |
| 11 | Elphidium batialis | E. batialis | # | Nkwain, Gael | Counting >150 µm fraction | |
| 12 | Elphidium clavatum | E. clavatum | # | Nkwain, Gael | Counting >150 µm fraction | |
| 13 | Elphidium excavatum | E. excavatum | # | Nkwain, Gael | Counting >150 µm fraction | Elpidium excavatum |
| 14 | Eubuliminella exilis | E. exilis | # | Nkwain, Gael | Counting >150 µm fraction | |
| 15 | Fursenkoina complanata | F. complanata | # | Nkwain, Gael | Counting >150 µm fraction | |
| 16 | Glandulina ovula | G. ovula | # | Nkwain, Gael | Counting >150 µm fraction | |
| 17 | Globobulimina affinis | G. affinis | # | Nkwain, Gael | Counting >150 µm fraction | |
| 18 | Globobulimina auriculata | G. auriculata | # | Nkwain, Gael | Counting >150 µm fraction | |
| 19 | Globobulimina barbata | G. barbata | # | Nkwain, Gael | Counting >150 µm fraction | |
| 20 | Globobulimina pacifica | G. pacifica | # | Nkwain, Gael | Counting >150 µm fraction | |
| 21 | Globocassidulina subglobosa | G. subglobosa | # | Nkwain, Gael | Counting >150 µm fraction | |
| 22 | Gyroidina sp. | Gyroidina sp. | # | Nkwain, Gael | Counting >150 µm fraction | |
| 23 | Islandiella helenae | I. helenae | # | Nkwain, Gael | Counting >150 µm fraction | |
| 24 | Laevidentalina baggi | L. baggi | # | Nkwain, Gael | Counting >150 µm fraction | |
| 25 | Laevidentalina californica | L. californica | # | Nkwain, Gael | Counting >150 µm fraction | |
| 26 | Lagena sp. | Lagena sp. | # | Nkwain, Gael | Counting >150 µm fraction | |
| 27 | Lobatula lobatula | L. lobatula | # | Nkwain, Gael | Counting >150 µm fraction | |
| 28 | Melonis affinis | M. affinis | # | Nkwain, Gael | Counting >150 µm fraction | |
| 29 | Miliolidae | Miliolidae | # | Nkwain, Gael | Counting >150 µm fraction | milionid |
| 30 | Neugeborina longiscata | N. longiscata | # | Nkwain, Gael | Counting >150 µm fraction | |
| 31 | Nodosariacea | Nodosariacea | # | Nkwain, Gael | Counting >150 µm fraction | nodosariid |
| 32 | Nonionellina labradorica | N. labradorica | # | Nkwain, Gael | Counting >150 µm fraction | |
| 33 | Oridorsalis umbonatus | O. umbonatus | # | Nkwain, Gael | Counting >150 µm fraction | |
| 34 | Parrelloides healdi | P. healdi | # | Nkwain, Gael | Counting >150 µm fraction | |
| 35 | Procerolagena gracillima | P. gracillima | # | Nkwain, Gael | Counting >150 µm fraction | |
| 36 | Pullenia bulloides | P. bulloides | # | Nkwain, Gael | Counting >150 µm fraction | |
| 37 | Pulvinulinella pacifica | P. pacifica | # | Nkwain, Gael | Counting >150 µm fraction | |
| 38 | Pyrgo sp. | Pyrgo sp. | # | Nkwain, Gael | Counting >150 µm fraction | |
| 39 | Quadrimorphina laevigata | Q. laevigata | # | Nkwain, Gael | Counting >150 µm fraction | |
| 40 | Reussoolina apiculata | R. apiculata | # | Nkwain, Gael | Counting >150 µm fraction | |
| 41 | Rutherfordoides tenuis | R. tenuis | # | Nkwain, Gael | Counting >150 µm fraction | |
| 42 | Triloculina trihedra | T. trihedra | # | Nkwain, Gael | Counting >150 µm fraction | |
| 43 | Uvigerina peregrina | U. peregrina | # | Nkwain, Gael | Counting >150 µm fraction | |
| 44 | Uvigerina senticosa | U. senticosa | # | Nkwain, Gael | Counting >150 µm fraction | |
| 45 | Valvulineria | Valvulineria | # | Nkwain, Gael | Counting >150 µm fraction | |
| 46 | Marine isotopic stage | MIS | Nkwain, Gael | According to Cook et al. (2016) | ||
| 47 | Presence/absence | Presence/absence | Nkwain, Gael | Visual observation | Authigenic Carbonate | |
| 48 | Principal coordinate 1 | PCoA1 | Score | Nkwain, Gael | Calculated | |
| 49 | Principal coordinate 2 | PCoA2 | Score | Nkwain, Gael | Calculated | |
| 50 | Principal coordinate 3 | PCoA3 | Score | Nkwain, Gael | Calculated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
7110 data points
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