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PANGAEA.
Data Publisher for Earth & Environmental Science
Abstract:
Descriptions of smear slides 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. This was followed by an onshore phase onboard D/V Chikyu between 2022-02-14 – 2022-03-15. During the offshore phase, smear slides were prepared from paleontology samples collected with a tip-cut syringe from section ends every 5 m. During the onshore phase, smear slides samples were collected every 2 m to complement visual core description observations and identify the composition of fine-grained sediment. The smear slides were prepared by putting a small amount of sediment on a glass slide mixed with distilled water. The slide was subsequently evaporated on a hot plate, and the dried sample was mounted in Norland Optical Adhesive 61 using ultraviolet light. Sediment grain size and composition were examined under a polarized light petrographic microscope (Zeiss Axio Imager A1m POL-1) with an ocular micrometer.
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):
International Ocean Discovery Program (IODP); IODP; Japan Trench; smear slide
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: 38.756883 * Longitude: 144.129250
Date/Time Start: 2021-04-24T00:00:00 * Date/Time End: 2021-04-24T00:00:00
Minimum DEPTH, sediment/rock: 0.280 m * Maximum DEPTH, sediment/rock: 18.590 m
Event(s):
386-M0083B (JTPC-05A)  * Latitude: 38.756883 * Longitude: 144.129250 * Date/Time Start: 2021-04-24T00:00:00 * Date/Time End: 2021-04-24T00:00:00 * Elevation: -7620.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Giant piston corer (GPC) * Comment: IGSN: IBCR0386EHV2001. Comment: 20 m
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).
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
Main LithologyMain lith
SandSand%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
SiltSilt%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
ClayClay%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
QuartzQz%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
10 PlagioclasePl%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
11 BiotiteBt%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
12 GlauconiteGlt%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
13 Clay mineralsClay min%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
14 Heavy mineralsHM%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
15 Pyrite, FeS2Py%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
16 PhosphophyllitePhosphophyllite%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
17 Calcite/Aragonite ratioCal/ArgCalculated
18 Lithic grainsLithic%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
19 Unknown componentsUnk%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
20 PumicePumice%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
21 Volcanic glassVolc glass%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
22 ForaminiferaForam%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
23 NannofossilsNannos%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
24 Shell fragmentsShell fragm%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
25 DiatomsDiatoms%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
26 RadiolariansRad%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
27 SilicoflagellatesSilicoflag%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
28 Sponge spiculaeSponge spic%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
29 EbriaceaEbriacea%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
30 Plant debrisPlant deb%Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1]
31 TotalTotal%
32 CommentComment
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
441 data points

Data

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


Event

Sample label

Prop IGSN

Depth sed [m]

Main lith

Sand [%]

Silt [%]

Clay [%]

Qz [%]
10 
Pl [%]
11 
Bt [%]
12 
Glt [%]
13 
Clay min [%]
14 
HM [%]
15 
Py [%]
16 
Phosphophyllite [%]
17 
Cal/Arg
18 
Lithic [%]
19 
Unk [%]
20 
Pumice [%]
21 
Volc glass [%]
22 
Foram [%]
23 
Nannos [%]
24 
Shell fragm [%]
25 
Diatoms [%]
26 
Rad [%]
27 
Silicoflag [%]
28 
Sponge spic [%]
29 
Ebriacea [%]
30 
Plant deb [%]
31 
Total [%]
32 
Comment
386-M0083B 386-M0083B-1H-1,28.0IBCR0386EX7WW010.280siliceous-rich, lithogenic clayey silt3.051.545.515.20.00045.50.00.0000.0000.000.0030.30.00.09.100100
386-M0083B386-M0083B-1H-3,61.0IBCR0386EX8WW012.595siliceous-rich, lithogenic clayey silt0.060.040.020.00.00040.00.00.0000.0004.000.0028.00.00.08.000100
386-M0083B386-M0083B-1H-5,50.0IBCR0386EX9WW014.495vitric-bearing, siliceous-rich, lithogenic-rich, clayey silt4.353.242.64.30.00042.60.00.0000.00010.600.0031.92.10.08.500100bubble-wall type (plane) volcanic glass shards included
386-M0083B386-M0083B-1H-7,50.0IBCR0386EXAWW016.510siliceous-rich, lithogenic-rich, clayey silt2.968.628.614.32.90028.60.02.9000.0008.600.0028.60.00.014.300100
386-M0083B386-M0083B-1H-8,56.0IBCR0386EXBWW017.575vitric-rich, lithogenic sand with heavy minerals81.518.50.018.518.5000.011.10.00025.90025.900.000.00.00.00.000100sand (reworked tephra?)
386-M0083B386-M0083B-1H-9,50.0IBCR0386EXCWW018.525siliceous-rich, lithogenic clayey silt4.561.434.122.70.00034.10.00.0000.0000.000.0022.74.54.511.400100
386-M0083B386-M0083B-1H-11,50.0IBCR0386EXDWW0110.540siliceous-rich, lithogenic silty clay with calc. nannofossils0.047.452.65.30.00052.60.00.0000.0005.305.3013.20.05.313.200100
386-M0083B386-M0083B-1H-13,90.0IBCR0386EXEWW0112.955vitric-bearing, lithogenic-rich, siliceous-rich, clayey silt4.165.330.610.20.00030.60.00.0000.00010.204.1020.40.04.120.400100
386-M0083B386-M0083B-1H-15,34.0IBCR0386EXFWW0114.420vitric-bearing, siliceous-rich, lithogenic clayey silt5.751.442.914.30.00042.90.00.0000.00014.300.0014.30.00.014.300100
386-M0083B386-M0083B-1H-16,26.5IBCR0386EXGWW0115.390lithogenic-rich ash4.495.60.00.033.3000.00.00.0000.00066.700.000.00.00.00.000100shape of glass shards are bubble-wall type with many altered (weathered) glasses. Occurrence of rounded glass shards suggests that this might be reworked tephra
386-M0083B386-M0083B-1H-17,22.0IBCR0386EXHWW0116.385lithogenic-rich ash0.095.74.34.321.7004.30.00.0000.00069.600.000.00.00.00.000100rounded glass shards, weathering glasses
386-M0083B386-M0083B-1H-17,41.0IBCR0386EXIWW0116.575lithogenic-rich ash0.094.75.30.036.8005.30.00.0000.00052.600.005.30.00.00.000100rounded glass shards, weathering glasses
386-M0083B386-M0083B-1H-17,60.0IBCR0386EXJWW0116.765vitric-rich, lithogenic silty clay0.044.455.61.90.00055.60.00.0000.00037.000.001.91.90.01.900100
386-M0083B386-M0083B-1H-19,36.0IBCR0386EXKWW0118.530lithogenic-bearing, vitric-rich, siliceous ooze2.684.213.25.30.00013.20.00.0000.00026.300.0028.90.00.026.300100
386-M0083B386-M0083B-1H-19,42.0IBCR0386EXLWW0118.590vitric-rich, lithogenic silt0.095.24.80.047.6004.80.00.0000.00047.600.000.00.00.00.000100rounded glass shards, altered glasses, colored glasses, biotite, apatite, hornblende