Data Publications

SAFOD Main Hole downhole logging data phase 2 (2005), 2975-3387m

hasData_Center_Short_Name
  • SDDB
hasDataset_Online_Resource
hasProject_Long_Name
  • San Andreas Fault-Zone Observatory at Depth
  • International Continental Scientific Drilling Program
hasDataset_Release_Date
  • 2008-08-27
hasDataset_Title
  • SAFOD Main Hole downhole logging data phase 2 (2005), 2975-3387m
hasEntry_ID
  • 10.1594/GFZ.SDDB.1127
hasKeyword
  • Potassium
  • Thorium
  • Uranium
  • Spontaneous Potential Shifted
  • gamma ray
  • Hole Deviation
  • Pad 1Azimuth
  • Relative Bearing
  • Bit size
  • Borehole Drift Azimuth
  • Cablehead Tension
  • Caliper
  • Caliper from x axis of x-y Caliper(s)
  • Compressional Wave Slowness
  • Cross Dipole Acoustic Anisotropy
  • Cross Dipole Average Acoustic Anisotropy
  • Cross Dipole Fast Shear Wave Azimuth
  • Cross Dipole Fast Shear Wave Slowness
  • Cross Dipole Slow Shear Wave Sloness
  • Differential Tension
  • Field Normalized Compensated Neutron Porosity
  • Porosity from ZDEN or ZDNC
  • Shear Wave Slowness
  • Shear to Compressional Slowness Ratio
  • Speed
  • Vert resolution matched (2 ft) res - DOI 10 inch
  • Vert resolution matched (2 ft) res - DOI 120 inch
  • Vert resolution matched (2 ft) res - DOI 20 inch
  • Vert resolution matched (2 ft) res - DOI 30 inch
  • Vert resolution matched (2 ft) res - DOI 60 inch
  • Vert resolution matched (2 ft) res - DOI 90 inch
  • ZDL bulk density
  • ZDL correction
hasSummary
  • SAFOD is motivated by the need to answer fundamental questions about the physical and chemical processes controlling faulting and earthquake generation within a major plate-bounding fault. SAFOD will drill and instrument an inclined borehole across the San Andreas Fault Zone to a depth of 3.2 km, targeting a repeating microearthquake source. The drill site is located west of the vertical San Andreas Fault on a segment of the fault that moves through a combination of aseismic creep and repeating microearthquakes. It lies at the extreme northern end of the rupture zone of the 1966, Magnitude 6 Parkfield earthquake, the most recent in a series of events that have ruptured the fault five times since 1857. The Parkfield region is the most comprehensively instrumented section of a fault anywhere in the world, and has been the focus of intensive study for the past two decades. This data set contains open hole geophysical wireline logging data from 2975-3387m (rel. to rig floor, 9,45m abv gnd)
GCMD Sciencekeywords describing the dataset. Click on Keyword to find similar datasets