Not logged in
Data Publisher for Earth & Environmental Science

Boyce, Robert E (1984): (Table 3) Electrical resistivity, formation factors, and sound velocity at DSDP Hole 75-530A. PANGAEA,, In supplement to: Boyce, RE (1984): Deep Sea Drilling Project Drill Sites 530 and 532 in the Angola Basin and on the Walvis Ridge: Interpretation of induction log data, sonic log data, and laboratory sound velocity, density, porosity-derived reflection coefficients, and vane shear strength. In: Hay, WW; Sibuet, J-C; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 75, 1137-1177,

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Latitude: -19.187700 * Longitude: 9.385800
Date/Time Start: 1980-07-29T00:00:00 * Date/Time End: 1980-07-29T00:00:00
Minimum DEPTH, sediment/rock: 629.0 m * Maximum DEPTH, sediment/rock: 879.0 m
75-530A * Latitude: -19.187700 * Longitude: 9.385800 * Date/Time: 1980-07-29T00:00:00 * Elevation: -4629.0 m * Penetration: 1121 m * Recovery: 617.5 m * Location: South Atlantic/RIDGE * Campaign: Leg75 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 107 cores; 986.5 m cored; 9.5 m drilled; 62.6 % recovery
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Depth, relativeDepth relmBoyce, Robert EFrom rig floor
2DEPTH, sediment/rockDepthmGeocode – mbsf
3Elevation of eventElevationm
4Hydrostatic pressureSigma HkPaBoyce, Robert Esee reference(s)Hydrostatic pressure = depth below sea level x 1.035 g/cm**3; Original unit kg/cm**2, multiplied by 98.0665
5SalinitySalBoyce, Robert ESalinity of 34.1 is extrapolated from pore-water samples
6Temperature, technicalT tech°CBoyce, Robert ETemperature assumes a 40 deg C/1000 m temperature gradient and a seafloor temperature of 2.9 deg C
7Resistivity, electricalResist electrOhm mBoyce, Robert ECalculated, see reference(s)In situ - Pore water
8ConductivityCondmS/cmBoyce, Robert EIn situ - Pore water. Original unit m-mho/m, multiplied by 0.01
9Hole DiameterHDinchBoyce, Robert EBorehole
10DiameterØmmBoyce, Robert EBorehole
11Resistivity, electricalResist electrOhm mBoyce, Robert ECalculated, see reference(s)True formation (hole and bed thickness corrected)
12ConductivityCondmS/cmBoyce, Robert ETrue formation (hole and bed thickness corrected); Original unit m-mho/m, multiplied by 0.01
13Natural gamma rayGRAPI unitsBoyce, Robert EUncorrected (sonic)
14--Boyce, Robert EHamilton frame velocimeter, Boyce (1976)Velocity, in µs/ft
15Sonic velocitySonic velkm/sBoyce, Robert EHamilton frame velocimeter, Boyce (1976)
16PorosityPoros% volBoyce, Robert EGamma-ray attenuation porosity evaluator (GRAPE)Derived from Vp
17Size fraction < 0.002 mm, > 9 phi, clay<2 µm, >9 phi%Boyce, Robert EGR (sonic) has a range of 2-23 API units; therefore estimate of precentage clay =GR-2/33-2*100
18Formation factorFBoyce, Robert ECalculated, see reference(s)
19PorosityPoros% volBoyce, Robert Esee reference(s)See reference
20Lithology/composition/faciesLithologyBoyce, Robert E
270 data points

Download Data

Download dataset as tab-delimited text (use the following character encoding: )

View dataset as HTML