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

• Main Author: Niessen, Frank
• Format: Dataset
• Language: English
• Published: PANGAEA 1999
• Subjects: DEPTH, sediment/rock; Porosity; Density, wet bulk; Velocity, compressional wave; Susceptibility; Core wireline system; Multi-Sensor Core Logger 17, GEOTEK; CRP-2; Sampling/drilling from ice; Cape Roberts Project CRP; Antarc*; Antarctica; antartic*; Victoria Land
• Online Access: https://dx.doi.org/10.1594/pangaea.55713; https://doi.pangaea.de/10.1594/PANGAEA.55713

In this paper the relationship between whole-core compressional wave velocities and gamma-ray attenuation porosities of sediments cored at CRP-2/2A is examined, and compared with results from CRP-1, CRP-2/2A core-plug samples, and global models for velocity/porosity relationships of marine sediments. The high degree of data scatter observed in the velocity/porosity relationship of CRP-1 core is even larger in CRP-2/2A core. The general pattern of the velocity/porosity relationship is similar in CRP-2/2A whole core and core plug measurements. Despite scatter, all data indicate a strong primary dependence of velocity on porosity. This relationship appears to be independent of lithology except for sections with zero porosity and porosity >0.6, which are attributed to large lonestones and lapillistones, respectively. Core velocity/porosity patterns of CRP-1 and CRP-2/2A are very similar for sediments from the same age interval (19-23 Ma), both characterized by relatively low velocities (mostly between 2 and 3 ... : Supplement to: Niessen, Frank; Kopsch, Conrad; Polozek, Kerstin (2000): Velocity and porosity from CRP-2/2A core logs, Victoria Land Basin, Antarctica. Terra Antartica, 7(3), 241-253 ...