International Ocean Discovery Program
Published February 6, 2022 | Version v1
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IODP Expedition 378 Moisture and Density

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Description

Moisture and density (MAD) data were acquired on ~10 mL sediment or rock samples by measuring three out of four material parameters: wet (saturated) mass, wet volume, dry mass, and/or dry volume after 24 h drying in a convection oven at 105 degrees C. From the moisture and volume measurements, the following phase relationships are calculated: wet and dry water content, wet bulk density, dry bulk density, grain density, porosity, and void ratio. The combination of measurements is defined by the submethod chosen: A, B, C, or D. Wet (A, B, or C) and dry (A, B, C, or D) mass is determined using motion-compensated balances. Wet volume is determined either by helium pycnometry (A) or by the sample's geometric dimensions using calipers (A or D). Dry volume (C or D) is measured by helium pycnometry. Submethods A and B are not recommended by IODP. Submethod C is suitable for saturated materials such as fine-grained sediments. Submethod D is suitable for unsaturated porous material such as certain limestones and basalts.

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MAD-README.txt

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Additional details

Related works

Is documented by
Publication: 10.14379/iodp.proc.378.2022 (DOI)

Funding

Management and Operations of the JOIDES Resolution as a Facility for the International Ocean Discovery Program (IODP) 1326927
National Science Foundation