(Table 1) Physical properties of sediments at DSDP Holes 69-504 and 69-505, supplement to: Wilkens, Roy H; Langseth, Marcus G (1983): Physical properties of sediments of the Costa Rica Rift, Deep Sea Drilling Project Sites 504 and 505. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 659-673

Values of physical properties measured in the upper sections of sediment cores recovered at Sites 504 and 505 exhibit a remarkable similarity. Below a depth of 145 m Site 504 sediments appear to have undergone changes which are reflected in physical property values. This alteration may have been due to high temperatures in the sediment. In most of Site 505, and in Site 504 above 145 m, seismic velocity averages 1.51 km/s, wet bulk density 1.32 g/cm3, porosity 80%, and thermal conductivity 0.80% W/m °K. Below 145 m at Site 504 and 210 m at Site 505, mean density increases to 1.40 g/cm3, porosity decreases to 67%, seismic velocity increases to 1.53 km/s, and thermal conductivity increases to values in excess of 1.0 W/m °K. A good correlation between independent measurements of water content and thermal resistivity supports the existence of small but regular variation in the measured parameters on the scale of 10 m and less.

Identifier
Source https://doi.pangaea.de/10.1594/PANGAEA.816578
Metadata Access http://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite3&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.816578
Provenance
Creator Langseth, Marcus G;Wilkens, Roy H
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1983
Representation
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Coverage
Discipline Earth System Research
Spatial Coverage (1 N-2 N,84W-84W)
Temporal Point 1979-09-20T11:59:59Z