Physical properties of sediment core AND-2A ...

• Main Authors: Dunbar, Gavin B, Atkins, Cliff, Magens, Diana, Niessen, Frank, SMS Science Team
• Format: Dataset
• Language: English
• Published: PANGAEA 2009
• Subjects: DEPTH, sediment/rock; Velocity, compressional wave; Density, wet bulk; Porosity, fractional; Magnetic susceptibility, volume; Drilling/drill rig; Multi-Sensor Core Logger MSCL, GEOTEK; SMS; McMurdo Station; Antarctic Geological Drilling ANDRILL; Antarc*; Antarctic; Antarctica; antartic*; McMurdo Sound
• Online Access: https://dx.doi.org/10.1594/pangaea.744014; https://doi.pangaea.de/10.1594/PANGAEA.744014

Whole-core measurements of Wet Bulk Density (WBD), compressional (P)-wave velocity (Vp), and Magnetic Susceptibility were measured at a sampling interval of 1 or 2 centimetres (cm) throughout the AND-2A drill core for initial core characterisation and on-site correlation with seismic modeling to predict target-reflector depth. Measurements were made using a GEOTEK (Multi-Sensor-Core-Logger MSCL). Density and velocity standards were measured together with core runs of 3-6 metres (m) (and occasionally up to 18 m) throughout the entire depth range to monitor data quality. Drift of the magnetic susceptibility sensor was also monitored and corrected where necessary. These physical properties show a large range of values, reflecting the different nature of the various lithologies including extremely high velocity and density values in individual clasts, and the effects of cementation on porosity. A downcore increase in WBD and Vp occurs in the upper 200 m, however, no systematic trend exists at greater depths ... : Supplement to: Dunbar, Gavin B; Atkins, Cliff; Magens, Diana; Niessen, Frank; SMS Science Team (2009): Physical Properties of the AND-2A Core, ANDRILL Southern McMurdo Sound Project, Antarctica. Terra Antartica, 15(1), 49-56 ...