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PANGAEA.
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Wilkens, Roy H; Langseth, Marcus G: (Table 1) Physical properties of sediments at DSDP Holes 69-504 and 69-505. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.816578 (unpublished dataset), Supplement to: Wilkens, RH; Langseth, MG (1983): Physical properties of sediments of the Costa Rica Rift, Deep Sea Drilling Project Sites 504 and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, https://doi.org/10.2973/dsdp.proc.69.140.1983

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Abstract:
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/cm**3, 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/cm**3, 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.
Project(s):
Coverage:
Median Latitude: 1.569800 * Median Longitude: -83.761100 * South-bound Latitude: 1.226300 * West-bound Longitude: -83.790000 * North-bound Latitude: 1.913300 * East-bound Longitude: -83.732200
Date/Time Start: 1979-09-20T00:00:00 * Date/Time End: 1979-09-29T00:00:00
Minimum Elevation: -3537.0 m * Maximum Elevation: -3460.0 m
Event(s):
69-504 * Latitude: 1.226300 * Longitude: -83.732200 * Date/Time: 1979-09-20T00:00:00 * Elevation: -3460.0 m * Penetration: 237 m * Recovery: 10 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
69-505 * Latitude: 1.913300 * Longitude: -83.790000 * Date/Time: 1979-09-29T00:00:00 * Elevation: -3537.0 m * Penetration: 242 m * Recovery: 187.1 m * Location: North Pacific/GRABEN * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 26 cores; 223 m cored; 0 m drilled; 83.9 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2Sample code/labelSample labelWilkens, Roy HDSDP/ODP/IODP sample designation
3Density, wet bulkWBDg/cm3Wilkens, Roy Hsee reference(s)
4Density, grainDensity graing/cm3Wilkens, Roy Hsee reference(s)
5PorosityPoros% volWilkens, Roy Hsee reference(s)
6Water content, wet massWater wm%Wilkens, Roy Hsee reference(s)
7Velocity, compressional waveVpm/sWilkens, Roy HHamilton frame velocimeter, Boyce (1976)Seismic
8Shear strengthShear strg/cm2Wilkens, Roy HCalculated, see reference(s)
9--Wilkens, Roy Hsee reference(s)Penetrability, unit is mm
10Conductivity, thermalkW/m/KWilkens, Roy HSteady state needle probe
Size:
2132 data points

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