Strasser, Michael; Ikehara, Ken; Everest, Jeremy D; Maeda, Lena; Hochmuth, Katharina; Grant, Hannah; Stewart, Margaret S; Sakurai, Noriaki; Yokoyama, Takahiro; Bao, Rui; Bellanova, Piero; Brunet, Morgane; Cai, Zhirong; Cattaneo, Antonio; Hsiung, Kan-Hsi; Huang, Jyh-Jaan Steven; Ishizawa, Tahashi; Itaki, Takuya; Jitsuno, Kana; Johnson, Joel E; Kanamatsu, Toshiya; Keep, Myra; Kioka, Arata; Kölling, Martin; Luo, Min; März, Christian; McHugh, Cecilia M G; Micallef, Aaron; Nagahashi, Yoshitaka; Pandey, Dhananjai K; Proust, Jean-Noël; Rasbury, Troy; Riedinger, Natascha; Satoguchi, Yasufumi; Sawyer, Derek E.; Seibert, Chloé; Silver, Maxwell; Straub, Susanne M; Virtasalo, Joonas J; Wang, Yong Hong; Wu, Ting-Wei; Zellers, Sarah D (2025): Radiolaria occurrences of IODP Hole 386-M0081D [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.978995
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Published: 2025-03-17 • DOI registered: 2025-04-19
Abstract:
Results of radiolarian 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, samples for radiolarian analyses were taken from the end of split cores at 2 m intervals. These were complemented during the onshore phase with samples from event layers identified from X-ray CT images. Samples in this dataset where categorized depending on their sedimentary regime by the following type key: E = event, H = hemipelagic, ? = unknown. Slides prepared from these samples were partially examined at 50× to 400× using a Zeiss Axio Imager.A1m POL-1 optical microscope on board Chikyu.
For further details on sample preparation see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023
Keyword(s):
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):
Coverage:
Latitude: 36.071450 * Longitude: 142.735433
Date/Time Start: 2021-04-22T00:00:00 * Date/Time End: 2021-04-22T00:00:00
Minimum DEPTH, sediment/rock: 1.310 m * Maximum DEPTH, sediment/rock: 34.060 m
Event(s):
386-M0081D (JTPS-01A) * Latitude: 36.071450 * Longitude: 142.735433 * Date/Time Start: 2021-04-22T00:00:00 * Date/Time End: 2021-04-22T00:00:00 * Elevation: -8020.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Giant piston corer (GPC) * Comment: IGSN: IBCR0386EHK1001. Comment: 40 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):
| # | Name | Short Name | Unit | Principal Investigator | 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 | Type | Type | of sedimentary regime; E = event, H = hemipelagic, ? = unknown | |||
| 6 | Cycladophora davisiana | C. davisiana | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] | ||
| 7 | Stylochlamydium venustum | S. venustum | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] | ||
| 8 | Lithomelissa setosa | L. setosa | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] | ||
| 9 | Tetrapyle circularis/fruticosa group | T. circularis/fruticosa gr | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] | ||
| 10 | Didymocyrtis tetrathalamus | D. tetrathalamus | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] | ||
| 11 | Dictyocoryne truncatum/profunda group | D. truncatum/profunda gr | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] | ||
| 12 | Didymocyrtis tetrathalamus | D. tetrathalamus | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] | Didymocyrtis tetrathalamus morphotype | |
| 13 | Radiolarians, other | Rad other | # | Polarized light petrographic microscope, Zeiss, Axio Imager [A1m, POL-1] |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
187 data points
Data
| 1 Event | 2 Sample label (DSDP/ODP/IODP sample designation) | 3 Prop IGSN | 4 Depth sed [m] | 5 Type (of sedimentary regime; E = ev...) | 6 C. davisiana [#] (Polarized light petrographic ...) | 7 S. venustum [#] (Polarized light petrographic ...) | 8 L. setosa [#] (Polarized light petrographic ...) | 9 T. circularis/fruticosa gr [#] (Polarized light petrographic ...) | 10 D. tetrathalamus [#] (Polarized light petrographic ...) | 11 D. truncatum/profunda gr [#] (Polarized light petrographic ...) | 12 D. tetrathalamus [#] (Didymocyrtis tetrathalamus mo...) | 13 Rad other [#] (Polarized light petrographic ...) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 386-M0081D | 386-M0081D-1H-2,98.5-101.5 | IBCR0386EX2JA01 | 1.310 | E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 386-M0081D | 386-M0081D-1H-4,97.5-100.0 | IBCR0386EX3JA01 | 3.315 | H | 6 | 0 | 8 | 6 | 0 | 0 | 2 | 210 |
| 386-M0081D | 386-M0081D-1H-6,98.0-100.5 | IBCR0386EX4JA01 | 5.325 | ? | 4 | 1 | 0 | 16 | 0 | 0 | 0 | 217 |
| 386-M0081D | 386-M0081D-1H-8,98.0-100.5 | IBCR0386EX5JA01 | 7.335 | E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 386-M0081D | 386-M0081D-1H-10,98.0-100.5 | IBCR0386EX6JA01 | 9.350 | E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 386-M0081D | 386-M0081D-1H-12,98.0-100.5 | IBCR0386EX7JA01 | 11.360 | E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 386-M0081D | 386-M0081D-1H-14,98.0-100.5 | IBCR0386EX8JA01 | 13.375 | E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 386-M0081D | 386-M0081D-1H-16,101.5-104.0 | IBCR0386EX9JA01 | 15.475 | ? | 4 | 0 | 3 | 11 | 0 | 0 | 4 | 228 |
| 386-M0081D | 386-M0081D-1H-18,98.5-101.5 | IBCR0386EXAJA01 | 17.490 | E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 386-M0081D | 386-M0081D-1H-20,109.0-111.5 | IBCR0386EXBJA01 | 19.610 | E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 386-M0081D | 386-M0081D-1H-22,98.5-101.5 | IBCR0386EXCJA01 | 21.710 | H | 2 | 0 | 1 | 7 | 0 | 0 | 4 | 211 |
| 386-M0081D | 386-M0081D-1H-24,105.5-108.0 | IBCR0386EXDJA01 | 23.795 | H | 9 | 0 | 4 | 7 | 0 | 2 | 1 | 204 |
| 386-M0081D | 386-M0081D-1H-26,98.5-101.5 | IBCR0386EXEJA01 | 25.900 | ? | 5 | 0 | 0 | 8 | 1 | 1 | 4 | 202 |
| 386-M0081D | 386-M0081D-1H-28,98.0-100.5 | IBCR0386EXFJA01 | 27.915 | ? | 15 | 1 | 3 | 9 | 1 | 0 | 3 | 240 |
| 386-M0081D | 386-M0081D-1H-30,98.5-101.0 | IBCR0386EXGJA01 | 29.935 | ? | 8 | 1 | 3 | 18 | 1 | 0 | 4 | 215 |
| 386-M0081D | 386-M0081D-1H-32,97.5-100.0 | IBCR0386EXHJA01 | 32.035 | ? | 6 | 0 | 3 | 13 | 0 | 0 | 3 | 203 |
| 386-M0081D | 386-M0081D-1H-34,99.5-102.0 | IBCR0386EXIJA01 | 34.060 | H | 4 | 2 | 10 | 12 | 0 | 1 | 3 | 220 |