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Webster, Jody M; Ravelo, Ana Christina; Grant, Hannah; Stewart, Margaret S; Rydzy, Marisa; Le Ber, Erwan; Allison, Nicola; Asami, Ryuji; Boston, Brian; Braga, Juan-Carlos; Brenner, Logan; Chen, Xuefei; Chutcharavan, Peter; Dutton, Andrea; Felis, Thomas; Fukuyo, Naoto; Gischler, Eberhard; Greve, Sahra; Hagen, Amy; Hamon, Youri; Hathorne, Ed C; Humblet, Marc; Jorry, Stephan J; Khanna, Pankaj; McGregor, Helen V; Mortlock, Richard A; Nohl, Theresa; Potts, Donald C; Prohaska, Ana; Prouty, Nancy G; Renema, Willem; Rubin, Kenna Harmony; Westphal, Hildegard; Yokoyama, Yusuke (2025): Core summary for IODP Site 389-M0102 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.985106

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Published: 2025-11-20 • DOI registered: 2025-12-19

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Abstract:
List of cores recovered from the above given site on International Ocean Discovery Program (IODP) Expedition 389 (Hawaiian Drowned Reefs) during the offshore phase of this expedition. The offshore phase took place between 2023-08-31 and 2023-10-31 onboard multipurpose vessel MMA Valour sailing from and to Barbers Point Harbor, Hawai'i, USA. Cores have been acquired by Benthic's fifth-generation Portable Remotely Operated Drill (PROD5). According to IODP core type nomenclature, cores recovered by push coring mode are labelled by the letter P, those recovered by rotary coring mode are labelled by the letter "R" and the letter "W" indicates intervals drilled without coring in wash down mode.
For further methodological information see methods chapter in Webster, J.M. et al., 2025 https://doi.org/10.14379/iodp.proc.389.2025
Keyword(s):
central Pacific; Coral Reef; Earth climate feedbacks; Earth history tipping points; Expedition 389; Hawaiian Drowned Reefs; Hawaiian geology; International Ocean Discovery Program (IODP); MMA Valour; Paleoclimate; sea level; volcanic
Related to:
Webster, Jody M; Ravelo, Ana Christina; Grant, Hannah; Stewart, Margaret S; Rydzy, Marisa; Le Ber, Erwan; Allison, Nicola; Asami, Ryuji; Boston, Brian; Braga, Juan-Carlos; Brenner, Logan; Chen, Xuefei; Chutcharavan, Peter; Dutton, Andrea; Felis, Thomas; Fukuyo, Naoto; Gischler, Eberhard; Greve, Sahra; Hagen, Amy; Hamon, Youri; Hathorne, Ed C; Humblet, Marc; Jorry, Stephan J; Khanna, Pankaj; McGregor, Helen V; Mortlock, Richard A; Nohl, Theresa; Potts, Donald C; Prohaska, Ana; Prouty, Nancy G; Renema, Willem; Rubin, Kenna Harmony; Westphal, Hildegard; Yokoyama, Yusuke (2025): Hawaiian Drowned Reefs. Proceedings of the International Ocean Discovery Program, International Ocean Discovery Program, 389, https://doi.org/10.14379/iodp.proc.389.2025
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Coverage:
Median Latitude: 20.289934 * Median Longitude: -155.650942 * South-bound Latitude: 20.289871 * West-bound Longitude: -155.651009 * North-bound Latitude: 20.289982 * East-bound Longitude: -155.650868
Date/Time Start: 2023-10-04T00:00:00 * Date/Time End: 2023-10-11T00:00:00
Minimum Elevation: -415.9 m * Maximum Elevation: -412.8 m
Event(s):
389-M0102A (KOH-01Aa)  * Latitude: 20.289982 * Longitude: -155.650868 * Date/Time Start: 2023-10-04T00:00:00 * Date/Time End: 2023-10-04T00:00:00 * Elevation: -412.8 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EHW5101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 412.4 m. Borehole abandoned due to technical issues. RC15 not recovered.
389-M0102B (KOH-01Ab)  * Latitude: 20.289949 * Longitude: -155.650948 * Date/Time Start: 2023-10-08T00:00:00 * Date/Time End: 2023-10-08T00:00:00 * Elevation: -415.4 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EHY5101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 415.0 m. Wash only to 4.7m. Borehole abandoned due to technical issues, no core recovery.
389-M0102C (KOH-01Ac)  * Latitude: 20.289871 * Longitude: -155.651009 * Date/Time Start: 2023-10-08T00:00:00 * Date/Time End: 2023-10-11T00:00:00 * Elevation: -415.9 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EHZ5101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 415.5 m. Wash to 19.9m. Maximum number of barrels used.
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
1 Event labelEvent
2 Sample code/labelSample label
3 Core diametercore diamcm
4 Section Top in meters below surfaceTopmbsf
5 DrilledDrilledm
6 Section Bot in meters below surfaceBotmbsf
7 RecoveryRecoverym
8 RecoveryRecovery%
9 Date/time endDate/time end
10 Proposed International Geo Sample NumberProp IGSN
11 CommentComment
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
480 data points

Data

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

1 
Event		2 
Sample label		3 
core diam [cm]		4 
Top [mbsf]		5 
Drilled [m]		6 
Bot [mbsf]		7 
Recovery [m]		8 
Recovery [%]		9 
Date/time end		10 
Prop IGSN		11 
Comment
389-M0102A 389-M0102A-1R7.30.000.480.480.4491.672023-10-04T13:19:00IBCR0389EC1PN01plastic liner
389-M0102A389-M0102A-2R7.30.481.401.880.7050.002023-10-04T13:20:00IBCR0389EC2PN01Alu transferred into plastic
389-M0102A389-M0102A-3R7.31.880.792.670.4860.762023-10-04T13:21:00IBCR0389EC3PN01Alu transferred into plastic
389-M0102A389-M0102A-4R7.32.671.974.640.5527.922023-10-04T13:22:00IBCR0389EC4PN01Alu transferred into plastic
389-M0102A389-M0102A-5R7.34.641.716.350.5733.332023-10-04T14:03:00IBCR0389EC5PN01Alu transferred into plastic
389-M0102A389-M0102A-6R7.36.351.858.201.4779.462023-10-04T14:04:00IBCR0389EC6PN01Alu transferred into plastic
389-M0102A389-M0102A-7R7.38.202.3010.500.4017.392023-10-04T14:04:00IBCR0389EC7PN01plastic liner
389-M0102A389-M0102A-8R7.310.502.3912.890.6426.782023-10-04T14:05:00IBCR0389EC8PN01plastic liner
389-M0102A389-M0102A-9R7.312.892.7515.640.6122.182023-10-04T14:37:00IBCR0389EC9PN01Alu transferred into plastic
389-M0102A389-M0102A-10R7.315.642.7518.392.2080.002023-10-04T14:38:00IBCR0389ECAPN01Alu transferred into plastic
389-M0102A389-M0102A-11R7.318.392.7621.150.6423.192023-10-04T14:39:00IBCR0389ECBPN01plastic liner
389-M0102A389-M0102A-12R7.321.151.1022.250.5146.362023-10-04T15:03:00IBCR0389ECCPN01plastic liner
389-M0102A389-M0102A-13R7.322.251.2923.540.8062.022023-10-04T15:03:00IBCR0389ECDPN01Alu transferred into plastic
389-M0102A389-M0102A-14R7.323.541.6025.141.0766.882023-10-04T15:04:00IBCR0389ECEPN01Alu transferred into plastic
389-M0102B 389-M0102B-1W0.00.004.704.700.000.002023-10-08T00:14:00IBCR0389EC6QN01Wash only
389-M0102C 389-M0102C-1R7.319.901.6821.580.4526.792023-10-11T11:29:00IBCR0389EC7QN01Aluminum liner. Wash down to 19.9m.
389-M0102C389-M0102C-2R7.321.580.9322.510.5963.442023-10-11T11:30:00IBCR0389EC8QN01Aluminum liner
389-M0102C389-M0102C-3R7.322.511.1423.650.7464.912023-10-11T11:31:00IBCR0389EC9QN01Aluminum liner
389-M0102C389-M0102C-4R7.323.650.9724.620.8284.542023-10-11T11:31:00IBCR0389ECAQN01Aluminum liner
389-M0102C389-M0102C-5R7.324.620.5625.180.1933.932023-10-11T11:32:00IBCR0389ECBQN01Aluminum liner
389-M0102C389-M0102C-6R7.325.180.8826.060.6068.182023-10-11T12:07:00IBCR0389ECCQN01Aluminum liner
389-M0102C389-M0102C-7R7.326.061.5327.590.7750.332023-10-11T12:09:00IBCR0389ECDQN01Aluminum liner
389-M0102C389-M0102C-8R7.327.591.1628.750.6253.452023-10-11T12:10:00IBCR0389ECEQN01Aluminum liner
389-M0102C389-M0102C-9R7.328.740.8429.580.8095.242023-10-11T12:11:00IBCR0389ECFQN01Aluminum liner
389-M0102C389-M0102C-10R7.329.580.6630.240.5887.882023-10-11T12:58:00IBCR0389ECGQN01Aluminum liner
389-M0102C389-M0102C-11R7.330.240.6830.920.3855.882023-10-11T12:59:00IBCR0389ECHQN01Aluminum liner
389-M0102C389-M0102C-12R7.330.921.0731.990.7469.162023-10-11T12:59:00IBCR0389ECIQN01Aluminum liner
389-M0102C389-M0102C-13R7.331.990.5432.530.4175.932023-10-11T12:59:00IBCR0389ECJQN01Aluminum liner
389-M0102C389-M0102C-14R7.332.531.2833.811.1186.722023-10-11T13:35:00IBCR0389ECKQN01Aluminum liner
389-M0102C389-M0102C-15R7.333.810.8334.640.6173.492023-10-11T13:38:00IBCR0389ECLQN01Aluminum liner
389-M0102C389-M0102C-16R7.334.640.5835.220.61105.172023-10-11T13:38:00IBCR0389ECMQN01Aluminum liner
389-M0102C389-M0102C-17R7.335.222.6437.862.0176.142023-10-11T13:39:00IBCR0389ECNQN01Aluminum liner
389-M0102C389-M0102C-18R7.337.861.4839.341.2886.492023-10-11T14:15:00IBCR0389ECOQN01Aluminum liner
389-M0102C389-M0102C-19R7.339.342.0541.391.8992.202023-10-11T14:15:00IBCR0389ECPQN01Aluminum liner
389-M0102C389-M0102C-20R7.341.391.3942.780.9971.222023-10-11T14:17:00IBCR0389ECQQN01Aluminum liner
389-M0102C389-M0102C-21R7.342.781.3844.161.0475.362023-10-11T14:49:00IBCR0389ECRQN01Aluminum liner. No shoe.
389-M0102C389-M0102C-22R7.344.162.6546.812.6399.252023-10-11T14:50:00IBCR0389ECSQN01Aluminum liner. Strong fishy smell!
389-M0102C389-M0102C-23R7.346.812.7749.582.6796.392023-10-11T15:23:00IBCR0389ECTQN01Aluminum liner
389-M0102C389-M0102C-24R7.349.581.3450.921.0880.602023-10-11T15:24:00IBCR0389ECUQN01Aluminum liner
389-M0102C389-M0102C-25R7.350.922.4553.372.47100.822023-10-11T16:21:00IBCR0389ECVQN01Aluminum liner
389-M0102C389-M0102C-26R7.353.372.7656.132.81101.812023-10-11T16:22:00IBCR0389ECWQN01Aluminum liner
389-M0102C389-M0102C-27R7.356.132.7858.912.2079.142023-10-11T16:54:00IBCR0389ECXQN01Aluminum liner
389-M0102C389-M0102C-28R7.358.912.9461.852.5085.032023-10-11T16:56:00IBCR0389ECYQN01Aluminum liner
389-M0102C389-M0102C-29R7.361.852.3164.161.7877.062023-10-11T17:31:00IBCR0389ECZQN01Aluminum liner
389-M0102C389-M0102C-30R7.364.162.2766.431.9385.022023-10-11T17:32:00IBCR0389EC0RN01Aluminum liner. Shoe ring found in core at 120cm.
389-M0102C389-M0102C-31R7.366.431.5768.001.3485.352023-10-11T17:57:00IBCR0389EC1RN01Aluminum liner
389-M0102C389-M0102C-32R7.368.002.6970.691.6661.712023-10-11T17:58:00IBCR0389EC2RN01Plastic liner
389-M0102C389-M0102C-33R7.370.692.7573.442.0273.452023-10-11T18:16:00IBCR0389EC3RN01Plastic liner