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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-M0101 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.985105

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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: 20.273755 * Median Longitude: -155.489851 * South-bound Latitude: 20.273677 * West-bound Longitude: -155.489903 * North-bound Latitude: 20.273832 * East-bound Longitude: -155.489799
Date/Time Start: 2023-10-02T00:00:00 * Date/Time End: 2023-10-07T00:00:00
Minimum Elevation: -932.0 m * Maximum Elevation: -931.9 m
Event(s):
389-M0101A (KOH-02Aa)  * Latitude: 20.273677 * Longitude: -155.489903 * Date/Time Start: 2023-10-02T00:00:00 * Date/Time End: 2023-10-03T00:00:00 * Elevation: -931.9 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EHV5101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 931.5 m. Maximum number of barrels used.
389-M0101B (KOH-02Ac)  * Latitude: 20.273832 * Longitude: -155.489799 * Date/Time Start: 2023-10-05T00:00:00 * Date/Time End: 2023-10-07T00:00:00 * Elevation: -932.0 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EHX5101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 931.6 m. Target depth reached
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 labelDSDP/ODP/IODP sample designation
3 Core diametercore diamcmIODP Depth Scale Terminology
4 Section Top in meters below surfaceTopmbsfIODP Depth Scale Terminology
5 DrilledDrilledmIODP Depth Scale Terminology
6 Section Bot in meters below surfaceBotmbsfIODP Depth Scale Terminology
7 RecoveryRecoverymAccording to Webster et al. (2025)
8 RecoveryRecovery%According to Webster et al. (2025)
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:
560 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-M0101A 389-M0101A-1P7.50.000.060.060.0466.672023-10-03T13:30:00IBCR0389EC7ON01Aluminum liner. IW-RH, sample in bag.
389-M0101A389-M0101A-2R7.30.061.841.900.9652.172023-10-03T13:35:00IBCR0389EC8ON01Aluminum liner transferred
389-M0101A389-M0101A-3R7.31.900.832.730.1619.282023-10-03T13:37:00IBCR0389EC9ON01Aluminum liner transferred
389-M0101A389-M0101A-4R7.32.731.964.690.6231.632023-10-03T13:37:00IBCR0389ECAON01Aluminum liner transferred
389-M0101A389-M0101A-5R7.34.690.945.630.4547.872023-10-03T14:32:00IBCR0389ECBON01Aluminum liner transferred
389-M0101A389-M0101A-6R7.35.630.225.850.25113.642023-10-03T14:33:00IBCR0389ECCON01Aluminum liner transferred
389-M0101A389-M0101A-7R7.35.850.496.340.53108.162023-10-03T14:34:00IBCR0389ECDON01Aluminum liner transferred
389-M0101A389-M0101A-8R7.36.340.717.050.7098.592023-10-03T14:35:00IBCR0389ECEON01Aluminum liner transferred
389-M0101A389-M0101A-9R7.37.050.287.330.1657.142023-10-03T15:10:00IBCR0389ECFON01Aluminum liner transferred
389-M0101A389-M0101A-10R7.37.330.577.900.5189.472023-10-03T15:10:00IBCR0389ECGON01Aluminum liner transferred
389-M0101A389-M0101A-11R7.37.900.648.540.74115.632023-10-03T15:11:00IBCR0389ECHON01Aluminum liner transferred
389-M0101A389-M0101A-12R7.38.540.238.770.71308.702023-10-03T15:12:00IBCR0389ECION01Aluminum liner transferred
389-M0101A389-M0101A-13R7.38.770.749.510.6587.842023-10-03T16:47:00IBCR0389ECJON01Aluminum liner transferred
389-M0101A389-M0101A-14R7.39.510.399.900.3692.312023-10-03T16:48:00IBCR0389ECKON01Aluminum liner transferred
389-M0101A389-M0101A-15R7.39.900.5910.490.5186.442023-10-03T16:49:00IBCR0389ECLON01Aluminum liner transferred
389-M0101A389-M0101A-16R7.310.490.4710.960.3165.962023-10-03T16:49:00IBCR0389ECMON01Aluminum liner transferred
389-M0101A389-M0101A-17R7.310.960.2411.200.25104.172023-10-03T17:21:00IBCR0389ECNON01Aluminum liner transferred
389-M0101A389-M0101A-18R7.311.200.5811.780.2644.832023-10-03T17:21:00IBCR0389ECOON01Aluminum liner transferred
389-M0101A389-M0101A-19R7.311.780.8912.670.7280.902023-10-03T17:22:00IBCR0389ECPON01Aluminum liner transferred
389-M0101A389-M0101A-20R7.312.670.9713.640.3435.052023-10-03T17:22:00IBCR0389ECQON01Aluminum liner transferred
389-M0101A389-M0101A-21R7.313.640.8514.490.4148.242023-10-03T17:53:00IBCR0389ECRON01Aluminum liner transferred, drill bit damaged.
389-M0101A389-M0101A-22R7.314.491.3315.820.5037.592023-10-03T17:55:00IBCR0389ECSON01Aluminum liner transferred, pieces of drill bit from Core 21 in liner, big parts were removed.
389-M0101A389-M0101A-23R7.315.820.4716.290.3574.472023-10-03T17:55:00IBCR0389ECTON01Aluminum liner transferred
389-M0101A389-M0101A-24R7.316.290.3416.630.39114.712023-10-03T17:57:00IBCR0389ECUON01Aluminum liner transferred
389-M0101A389-M0101A-25R7.316.630.3116.940.37119.352023-10-03T18:23:00IBCR0389ECVON01Aluminum liner transferred
389-M0101A389-M0101A-26R7.316.940.4017.340.3280.002023-10-03T18:24:00IBCR0389ECWON01Aluminum liner transferred
389-M0101A389-M0101A-27R7.317.340.2517.590.2184.002023-10-03T18:24:00IBCR0389ECXON01Aluminum liner transferred
389-M0101A389-M0101A-28R7.317.590.3717.960.3697.302023-10-03T18:25:00IBCR0389ECYON01Aluminum liner transferred
389-M0101A389-M0101A-29R7.317.960.1318.090.20153.852023-10-03T18:25:00IBCR0389ECZON01Aluminum liner transferred
389-M0101B 389-M0101B-1R7.30.001.581.581.4189.242023-10-07T06:42:00IBCR0389ECFPN01Aluminum liner
389-M0101B389-M0101B-2R7.31.582.624.200.7227.482023-10-07T06:42:00IBCR0389ECGPN01Aluminum liner
389-M0101B389-M0101B-3R7.34.200.574.770.3357.892023-10-07T06:42:00IBCR0389ECHPN01Aluminum liner
389-M0101B389-M0101B-4R7.34.770.445.210.56127.272023-10-07T06:42:00IBCR0389ECIPN01Aluminum liner. Wash down 11.65m from 5.21m-16.86m!
389-M0101B389-M0101B-5R7.316.860.1417.000.41292.862023-10-07T06:42:00IBCR0389ECJPN01Aluminum liner. Wash down 11.65m from 5.21m-16.86m!
389-M0101B389-M0101B-6R7.317.000.4517.450.3373.332023-10-07T06:42:00IBCR0389ECKPN01Aluminum liner
389-M0101B389-M0101B-7R7.317.450.6218.070.71114.522023-10-07T06:42:00IBCR0389ECLPN01Aluminum liner
389-M0101B389-M0101B-8R7.318.070.3018.370.2480.002023-10-07T06:42:00IBCR0389ECMPN01Aluminum liner
389-M0101B389-M0101B-9R7.318.370.1318.500.27207.692023-10-07T06:42:00IBCR0389ECNPN01Aluminum liner
389-M0101B389-M0101B-10R7.318.500.3818.880.037.892023-10-07T06:42:00IBCR0389ECOPN01Aluminum liner
389-M0101B389-M0101B-11R7.318.880.3219.200.43134.382023-10-07T06:42:00IBCR0389ECPPN01Aluminum liner
389-M0101B389-M0101B-12R7.319.200.6719.870.6597.012023-10-07T06:42:00IBCR0389ECQPN01Aluminum liner
389-M0101B389-M0101B-13R7.319.870.4620.330.49106.522023-10-07T06:42:00IBCR0389ECRPN01Aluminum liner
389-M0101B389-M0101B-14R7.320.330.4720.800.2655.322023-10-07T06:42:00IBCR0389ECSPN01Aluminum liner
389-M0101B389-M0101B-15R7.320.800.3721.170.3594.592023-10-07T06:42:00IBCR0389ECTPN01Aluminum liner. Wash down 1.17m from 21.17-22.34m.
389-M0101B389-M0101B-16R7.322.340.7623.100.77101.322023-10-07T06:42:00IBCR0389ECUPN01Aluminum liner. Wash down 2m from 23.1-25.1m.
389-M0101B389-M0101B-17R7.325.100.6025.700.5693.332023-10-07T10:21:00IBCR0389ECVPN01Aluminum liner
389-M0101B389-M0101B-18R7.325.700.4026.100.1025.002023-10-07T10:22:00IBCR0389ECWPN01Aluminum liner. Wash down 2m from 26.1 to 28.1m.
389-M0101B389-M0101B-19R7.328.102.7530.852.76100.362023-10-07T10:24:00IBCR0389ECXPN01Aluminum liner
389-M0101B389-M0101B-20R7.330.851.6332.481.77108.592023-10-07T11:12:00IBCR0389ECYPN01Aluminum liner
389-M0101B389-M0101B-21R7.332.481.7134.191.81105.852023-10-07T11:13:00IBCR0389ECZPN01Aluminum liner
389-M0101B389-M0101B-22R7.334.190.3934.580.42107.692023-10-07T11:56:00IBCR0389EC0QN01Aluminum liner
389-M0101B389-M0101B-23R7.334.580.7235.301.24172.222023-10-07T11:59:00IBCR0389EC1QN01Aluminum liner
389-M0101B389-M0101B-24R7.335.302.3137.612.34101.302023-10-07T12:03:00IBCR0389EC2QN01Aluminum liner
389-M0101B389-M0101B-25R7.337.612.7740.382.7699.642023-10-07T12:29:00IBCR0389EC3QN01Aluminum liner
389-M0101B389-M0101B-26R7.340.382.7643.142.77100.362023-10-07T12:30:00IBCR0389EC4QN01Aluminum liner. Top value cut off by saw.
389-M0101B389-M0101B-27R7.343.142.0145.151.9597.012023-10-07T12:53:00IBCR0389EC5QN01Aluminum liner