Citation:

PANGAEA.979491 (DOI registration in progress)

Name: Foraminifera occurrences of IODP Hole 386-M0094A
Published: 2025-03-18
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Foraminifera; Foraminiferal assemblages; International Ocean Discovery Program (IODP); IODP; Japan Trench

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Published: 2025-03-18

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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

Project(s):

Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)

Coverage:

Latitude: 39.249233 * Longitude: 144.205150

Date/Time Start: 2021-05-29T00:00:00 * Date/Time End: 2021-05-29T00:00:00

Minimum DEPTH, sediment/rock: 0.675 m * Maximum DEPTH, sediment/rock: 0.675 m

Event(s):

386-M0094A (JTPN-01A) * Latitude: 39.249233 * Longitude: 144.205150 * Date/Time Start: 2021-05-29T00:00:00 * Date/Time End: 2021-05-29T00:00:00 * Elevation: -7469.0 m * Location: Japan Trench * Campaign: * Basis: * Method/Device: Trigger corer (TC) * Comment: IGSN: IBCR0386EH17001. Comment: 1.5 m. Location: applied ship's position 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):

#	Name	Short Name	Unit	Method/Device	Comment
1	Event label	Event
2	Sample code/label	Sample label		DSDP/ODP/IODP sample designation
3	Proposed International Geo Sample Number	Prop IGSN
4	DEPTH, sediment/rock	Depth sed	m		Geocode
5	Foraminifera, benthic preservation	Foram benth preserv
6	Foraminifera, planktic preservation	Foram plankt preserv
7	Foraminifera, benthic agglutinated, other	Foram benth agg oth	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
8	Bolivina pacifica	B. pacifica	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
9	Chilostomellina fimbriata	C. fimbriata	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
10	Elphidium batialis	E. batialis	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
11	Eubuliminella exilis	E. exilis	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
12	Globocassidulina subglobosa	G. subglobosa	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
13	Nonionella globosa	N. globosa	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
14	Stainforthia apertura	S. apertura	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
15	Stainforthia fusiformis	S. fusiformis	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
16	Foraminifera, benthic calcareous, other	Foram benth calc oth	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
17	Foraminifera, benthic, number of species	Foram benth sp	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]	# of benthic TAXA
18	Foraminifera, benthic, total	Foram benth tot	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
19	Foraminifera, planktic, total	Foram plankt tot	#	Light microscope, Meiji Techno, RZ-Serie [Binocular Head]
20	Siliceous microfossils	Silic foss
21	Comment	Comment

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

19 data points

Data

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

1 Event	2 Sample label	3 Prop IGSN	4 Depth sed [m]	5 Foram benth preserv	6 Foram plankt preserv	7 Foram benth agg oth [#]	8 B. pacifica [#]	9 C. fimbriata [#]	10 E. batialis [#]	11 E. exilis [#]	12 G. subglobosa [#]	13 N. globosa [#]	14 S. apertura [#]	15 S. fusiformis [#]	16 Foram benth calc oth [#]	17 Foram benth sp [#]	18 Foram benth tot [#]	19 Foram plankt tot [#]	20 Silic foss	21 Comment
386-M0094A	386-M0094A-1P-1,67.5-70.5	IBCR0386EX93F01	0.675	-	-	0	0	0	0	0	0	0	0	0	0	0	0	0	R,D,SS	lots of glass