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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: 36.891683 * Longitude: 143.407883
Date/Time Start: 2021-05-30T00:00:00 * Date/Time End: 2021-05-30T00:00:00
Minimum DEPTH, sediment/rock: 2.240 m * Maximum DEPTH, sediment/rock: 27.920 m
Event(s):
386-M0095B (JTPS-05B)  * Latitude: 36.891683 * Longitude: 143.407883 * Date/Time Start: 2021-05-30T00:00:00 * Date/Time End: 2021-05-30T00:00:00 * Elevation: -7697.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Giant piston corer (GPC) * Comment: IGSN: IBCR0386EH47001. Comment: 30 m. Location: ship's position applied 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
Haplophragmoides spp.Haplophragmoides spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
Lagenammina spp.Lagenammina spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
Textularia spp.Textularia spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
10 Trochammina spp.Trochammina spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
11 Foraminifera, benthic agglutinated, otherForam benth agg oth#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
12 Bolivina decussataB. decussata#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
13 Bolivina pacificaB. pacifica#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
14 Chilostomella ovoideaC. ovoidea#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
15 Epistominella naraensisE. naraensis#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
16 Epistominella spp.Epistominella spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
17 Fissurina spp.Fissurina spp.#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
18 Fursenkoina complanataF. complanata#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
19 Glandulina laevigataG. laevigata#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
20 Lagena striataL. striata#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
21 Nonionella globosaN. globosa#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
22 Nonionella stellaN. stella#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
23 Nonionellina labradoricaN. labradorica#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
24 Nummoloculina contrariaN. contraria#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
25 Oridorsalis umbonatusO. umbonatus#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
26 Stainforthia aperturaS. apertura#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
27 Stainforthia fusiformisS. fusiformis#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
28 Foraminifera, benthic calcareous, otherForam benth calc oth#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
29 Foraminifera, benthic, number of speciesForam benth sp#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]# of benthic TAXA
30 Foraminifera, benthic, totalForam benth tot#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
31 Foraminifera, planktic, totalForam plankt tot#Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
32 Siliceous microfossilsSilic foss
33 CommentComment
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
186 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
 
Haplophragmoides spp. [#]
 
Lagenammina spp. [#]
 
Textularia spp. [#]
10  
Trochammina spp. [#]
11  
Foram benth agg oth [#]
12  
B. decussata [#]
13  
B. pacifica [#]
14  
C. ovoidea [#]
15  
E. naraensis [#]
16  
Epistominella spp. [#]
17  
Fissurina spp. [#]
18  
F. complanata [#]
19  
G. laevigata [#]
20  
L. striata [#]
21  
N. globosa [#]
22  
N. stella [#]
23  
N. labradorica [#]
24  
N. contraria [#]
25  
O. umbonatus [#]
26  
S. apertura [#]
27  
S. fusiformis [#]
28  
Foram benth calc oth [#]
29  
Foram benth sp [#]
30  
Foram benth tot [#]
31  
Foram plankt tot [#]
32 
Silic foss
33 
Comment
386-M0095B 386-M0095B-1H-3,97.5-100.5IBCR0386EX0BF012.240MM0101100010000000000100551R,D,SSIms
386-M0095B386-M0095B-1H-8,97-100IBCR0386EX1BF017.260PP616004000002022000310059412R,D,SSLots of ims, dark glass, heavy minerals, orange clumps, pollen
386-M0095B386-M0095B-1H-13,98-101IBCR0386EX2BF0112.305MM0410000000000000000000251R,D,SSOrange clumps
386-M0095B386-M0095B-1H-18,102-105IBCR0386EX3BF0117.465MM01000021020100110000119112R,D,SSIms, ims infilled burrows
386-M0095B386-M0095B-1H-23,104-107IBCR0386EX4BF0122.745GG0000013003000000100010596R,D,SSOrange clumps
386-M0095B386-M0095B-1H-28,100-103IBCR0386EX5BF0127.920P-0000300000000000000000130R,D,SSSome glass