Geotechnical properties of shelf sdiments from the Prydz Bay ...

• Main Authors: Solheim, Anders, Forsberg, Carl Fredrik, Pittenger, Alan
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2011
• Subjects: Composite Core; Drilling/drill rig; Leg119; Joides Resolution; Ocean Drilling Program ODP; Antarc*; Antarctica; East Antarctica; Prydz Bay
• Online Access: https://dx.doi.org/10.1594/pangaea.757958; https://doi.pangaea.de/10.1594/PANGAEA.757958

This paper presents a geotechnical characterization of the glacigenic sediments in Prydz Bay, East Antarctica, based on the shipboard physical properties data obtained during Leg 119, combined with results of land-based analyses of 24 whole-round core samples. Main emphasis is placed on the land-based studies, which included oedometer consolidation tests, triaxial and simple shear tests for undrained shear strength, permeability tests in oedometer and triaxial cell, Atterberg limits, and grain-size analyses. The bulk of the tested sediments comprise overconsolidated diamictites of a relatively uniform lithology. The overconsolidation results from a combination of glacial loading and sediment overburden subsequently removed by extensive glacial erosion of the shelf. This leads to downhole profiles of physical properties that have been observed not to change as a function of the thickness of present overburden. A number of fluctuations in the parameters shows a relatively systematic trend and most likely ... : Supplement to: Solheim, Anders; Forsberg, Carl Fredrik; Pittenger, Alan (1991): Geotechnical properties of glacigenic shelf sediments from Prydz Bay, East Antarctica. In: Barron, J; Larsen, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 119, 143-167 ...