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PANGAEA.
Data Publisher for Earth & Environmental Science
Abstract:
Results of Foraminifera assemblage analyses from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The offshore phase of this expedition took place between 2021-04-13 and 2021-06-01 onboard Japanese R/V Kaimei from and to Yokosuka, Japan, followed by an onshore phase onboard D/V Chikyu between 2022-02-14 – 2022-03-15. During the offshore phase, micropaleontology samples were taken from the end of split cores at 5 m intervals. During the onshore phase approximately 2 cubic centimetres of sediment from each of these samples were analysed for foraminifera. After drying overnight in a ~40°C oven, samples were disaggregated in a solution of deionized water, Calgon, and H2O2 to ensure removal of clay-sized particles. Samples were then wet sieved through a 63 μm mesh sieve and rinsed with deionized water. The coarse fraction was placed on filter paper in an oven at ~40°C until it dried completely. Faunal identifications were made using a Meiji Techno RZ binocular light microscope. Taxonomic composition, abundance, and preservation state were observed in the >63 μm size fraction.
For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023
Keyword(s):
Foraminifera; Foraminiferal assemblages; International Ocean Discovery Program (IODP); IODP; Japan Trench
Related to:
Strasser, Michael; Ikehara, Ken; Everest, Jeremy D; IODP Expedition 386 Scientists (2023): Japan Trench Paleoseismology. Proceedings of the International Ocean Discovery Program, International Ocean Discovery Program, 386, https://doi.org/10.14379/iodp.proc.386.2023
Coverage:
Latitude: 36.911050 * Longitude: 143.423850
Date/Time Start: 2021-05-25T00:00:00 * Date/Time End: 2021-05-25T00:00:00
Minimum DEPTH, sediment/rock: 0.655 m * Maximum DEPTH, sediment/rock: 0.655 m
Event(s):
386-M0092C (JTPS-06B)  * Latitude: 36.911050 * Longitude: 143.423850 * Date/Time Start: 2021-05-25T00:00:00 * Date/Time End: 2021-05-25T00:00:00 * Elevation: -7700.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Trigger corer (TC) * Comment: IGSN: IBCR0386EH96001. Comment: 1.5 m. Location: applied ship'sposition due to malfunctioning GPC transponder.
Comment:
Data was submitted and proofread by Vera Barbara Bender, MARUM - Center for Marine Environmental Sciences (University Bremen) on behalf of ECORD Science Operator Data Management (https://www.ecord.org).
Preservation and other abbreviations key: VG = very good, G = good, M = moderate, P = poor, S = brown-orange stained, R = radiolarians, D = diatoms, SS = sponge spicules, Ims = Iron monosulfides.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Sample code/labelSample labelDSDP/ODP/IODP sample designation
Proposed International Geo Sample NumberProp IGSN
DEPTH, sediment/rockDepth sedmGeocode
Foraminifera, benthic preservationForam benth preserv
Foraminifera, planktic preservationForam plankt preserv
Bathysiphon sp.Bathysiphon sp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
Haplophragmoides spp.Haplophragmoides spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
Lagenammina spp.Lagenammina spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
10 Reophax spp.Reophax spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
11 Trochammina spp.Trochammina spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
12 Foraminifera, benthic agglutinated, otherForam benth agg oth#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
13 Bolivina pacificaB. pacifica#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
14 Bulimina spp.Bulimina spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
15 Cassidulina reniformeC. reniforme#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
16 Cibicidoides spp.Cibicidoides spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
17 Epistominella sp.Epistominella sp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
18 Eubuliminella exilisE. exilis#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
19 Fissurina spp.Fissurina spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
20 Fursenkoina complanataF. complanata#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
21 Globocassidulina subglobosaG. subglobosa#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
22 Melonis affinisM. affinis#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
23 Nonionella globosaN. globosa#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
24 Nonionellina sp.Nonionellina sp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
25 Oridorsalis umbonatusO. umbonatus#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
26 Procerolagena gracilisP. gracilis#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
27 Stainforthia aperturaS. apertura#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
28 Foraminifera, benthic, number of speciesForam benth sp#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]# of benthic TAXA
29 Foraminifera, benthic, totalForam benth tot#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
30 Foraminifera, planktic, totalForam plankt tot#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
31 Siliceous microfossilsSilic foss
32 CommentComment
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
30 data points

Data

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


Event

Sample label

Prop IGSN

Depth sed [m]

Foram benth preserv

Foram plankt preserv
 
Bathysiphon sp. [#]
 
Haplophragmoides spp. [#]
 
Lagenammina spp. [#]
10  
Reophax spp. [#]
11  
Trochammina spp. [#]
12  
Foram benth agg oth [#]
13  
B. pacifica [#]
14  
Bulimina spp. [#]
15  
C. reniforme [#]
16  
Cibicidoides spp. [#]
17  
Epistominella sp. [#]
18  
E. exilis [#]
19  
Fissurina spp. [#]
20  
F. complanata [#]
21  
G. subglobosa [#]
22  
M. affinis [#]
23  
N. globosa [#]
24  
Nonionellina sp. [#]
25  
O. umbonatus [#]
26  
P. gracilis [#]
27  
S. apertura [#]
28  
Foram benth sp [#]
29  
Foram benth tot [#]
30  
Foram plankt tot [#]
31 
Silic foss
32 
Comment
386-M0092C 386-M0092C-1P-1,65.5-68.5IBCR0386EXZFE010.655G-000000200000000000000120R,D,SSSome residue lost during processing