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PANGAEA.
Data Publisher for Earth & Environmental Science
Abstract:
Moisture and density (MAD) data from discrete samples from the above given hole of International Ocean Discovery Program (IODP) Expedition 389 (Hawaiian Drowned Reefs). MAD measurements were performed on the same samples as P-wave velocity (the same sample was used for both measurements). These discrete samples were taken during the onshore phase of expedition 389, which took place between 2025-02-06 to 2025-02-26 at the Bremen Core Repository (BCR) hosted at MARUM – Center for Marine Environmental Sciences, University of Bremen. Where core quality allowed cylindrical plugs were drilled perpendicular to the split core surface at an interval of one sample per core (approx. every 1.5 meter). MAD properties (bulk density, dry density, grain density, water content, porosity, and void ratio) were determined from measurements of the wet and dry mass of the sampled core plugs as well as their dry volumes. Drying took place in a convection oven at 105°±5°C for 24 hours.
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
Coverage:
Latitude: 19.870311 * Longitude: -154.954000
Date/Time Start: 2023-10-14T00:00:00 * Date/Time End: 2023-10-16T00:00:00
Minimum DEPTH, sediment/rock: 2.87 m * Maximum DEPTH, sediment/rock: 45.42 m
Event(s):
389-M0104A (HIL-04Aa)  * Latitude: 19.870311 * Longitude: -154.954000 * Date/Time Start: 2023-10-14T00:00:00 * Date/Time End: 2023-10-16T00:00:00 * Elevation: -347.0 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EH16101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 346.6m. Borehole terminated as per client request.
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 – in mbsf
Density, wet bulkWBDg/cm3Calculated according to Webster et al. (2025)
Density, dry bulkDBDg/cm3Calculated according to Webster et al. (2025)
Density, grainDensity graing/cm3Calculated according to Webster et al. (2025)
PorosityPoros% volCalculated according to Webster et al. (2025)
Water content, dry massWater dm%see commentElectric balance system with an acceptable accuracy within ± 0.005 g
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
182 data points

Data

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


Event

Sample label

Prop IGSN

Depth sed [m]

WBD [g/cm3]

DBD [g/cm3]

Density grain [g/cm3]

Poros [% vol]

Water dm [%]
389-M0104A 389-M0104A-2R-1,106.0-108.0IBCR0389EXN4E742.872.40882.20522.752519.88179.2320
389-M0104A389-M0104A-2R-2,114.0-116.5IBCR0389EX36E744.412.49092.32612.772516.10177.0884
389-M0104A389-M0104A-3R-1,25.0-27.0IBCR0389EXT5E744.812.32692.07382.754724.717712.2052
389-M0104A389-M0104A-4R-2,20.0-22.5IBCR0389EXL7E749.012.42592.24022.736218.12758.2860
389-M0104A389-M0104A-4R-1,124.0-126.0IBCR0389EXJ6E748.552.25381.95952.749628.734215.0157
389-M0104A389-M0104A-5R-1,147.0-149.0IBCR0389EXR7E7411.522.46712.27672.796918.60028.3660
389-M0104A389-M0104A-5R-2,81.0-83.5IBCR0389EXC8E7412.362.36922.14422.748021.972410.4935
389-M0104A389-M0104A-6R-1,54.0-56.0IBCR0389EXS8E7413.342.29882.03112.749826.137313.1773
389-M0104A389-M0104A-6R-2,54.0-57.0IBCR0389EX29E7414.802.44032.24212.780319.35748.8407
389-M0104A389-M0104A-7R-1,124.0-126.0IBCR0389EXBAE7416.772.47942.29142.806818.36178.2056
389-M0104A389-M0104A-7R-2,107.0-110.0IBCR0389EXU9E7418.082.46052.27412.780218.20248.1961
389-M0104A389-M0104A-8R-1,104.5-107.0IBCR0389EXWAE7419.352.49092.31852.787816.83317.4344
389-M0104A389-M0104A-8R-2,95.0-97.0IBCR0389EX6BE7420.732.47602.30912.758816.29947.2281
389-M0104A389-M0104A-9R-1,7.0-9.0IBCR0389EXZBE7421.142.41492.19912.786321.07439.8131
389-M0104A389-M0104A-10R-1,80.0-82.0IBCR0389EXLCE7424.062.41102.16492.849724.029911.3661
389-M0104A389-M0104A-11R-1,84.0-86.0IBCR0389EXBEE7427.052.37412.14852.755822.038010.5038
389-M0104A389-M0104A-12R-1,23.5-26.0IBCR0389EXREE7427.302.43562.23982.769419.12268.7426
389-M0104A389-M0104A-13R-1,5.5-8.0IBCR0389EX0FE7429.432.28571.99292.790928.591214.6907
389-M0104A389-M0104A-16R-1,21.0-23.0IBCR0389EXTGE7434.062.28462.00352.761427.444814.0270
389-M0104A389-M0104A-18R-1,7.0-9.5IBCR0389EXEJE7437.452.23561.92672.759030.167316.0336
389-M0104A389-M0104A-19R-1,64.0-66.0IBCR0389EXAJE7439.422.47572.32652.723314.57156.4137
389-M0104A389-M0104A-19R-2,48.0-50.0IBCR0389EXDIE7440.762.52302.38562.755213.41255.7571
389-M0104A389-M0104A-20R-1,95.0-97.0IBCR0389EXAKE7442.492.08851.67502.809240.373324.6815
389-M0104A389-M0104A-22R-1,128.0-131.0IBCR0389EX1LE7444.942.40072.19172.753620.40619.5340
389-M0104A389-M0104A-11R-1,72.0-74.0IBCR0389EXCLE7426.932.32872.07722.753324.555912.1053
389-M0104A389-M0104A-22R-2,27.0-29.0IBCR0389EXCKE7445.422.38592.17112.747420.97549.8928