IODP Expedition 361 Bulk and grain density (MAD)

• Main Authors: Hall, I.R., Hemming, S.R., LeVay, L.J., Barker, S., Berke, M.A., Brentegani, L., Caley, T., Cartagena-Sierra, A., Charles, C.D., Coenen, J.J., Crespin, J.G., Franzese, A.M., Gruetzner, J., Han, X., Hines, S.K.V., Jimenez-Espejo, F.J., Just, J., Koutsodendris, A., Kubota, K., Lathika, N., Norris, R.D., Pereira dos Santos, T., Robinson, R., Rolinson, J.M., Simon, M.H., Tangunan, D., van der Lubbe, J.J.L., Yamane, M., Zhang, H.
• Format: Dataset
• Language: unknown
• Published: Zenodo 2020
• Subjects: Expedition 361; JOIDES Resolution; South African Climates; Agulhas LGM Density Profile; Site U1474; Site U1475; Site U1476; Site U1477; Site U1478; Ancillary Project Letter APL-845; Climate and Ocean Change; monsoons; AABW Antarctic Bottom Water; AAIW Antarctic Intermediate Water; Agulhas Bank; Agulhas Current; Agulhas leakage; Agulhas Plateau; Agulhas Return Current; Agulhas ring; Agulhas Undercurrent; ASHSW Arabian Sea High Salinity Water; Cape Basin; CDW Circumpolar Deep Water; Davie Ridge; Delagoa Bight; DSTF Dynamical Southern Ocean Subtropical Front; East Madagascar Current; EIOW Equatorial Indian Ocean Water; Indian-Atlantic Ocean gateway; IOW Indian Ocean Water; ITCZ Intertropical Convergence Zone; Limpopo River; Mozambique Channel; Mozambique Undercurrent; NADW North Atlantic Deep Water; Natal Pulses; Natal Valley; RSIW Red Sea Intermediate Water; SAF Subantarctic Front; SICW South Indian Central Water; South Atlantic Ocean; Southeast African margin; Southwest Indian Ocean; STF Subtropical Front; STSW Subtropical Surface Water; TSW Tropical Surface Water; Zambezi River; Antarctic; Indian; Southern Ocean; Antarc*; NADW; North Atlantic Deep Water; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.3633316; https://zenodo.org/record/3633316

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.