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Data Publication
SAFOD Main Hole downhole logging data phase 2 (2005), 3387-3799m
SAFOD
Deutsches GeoForschungsZentrum GFZ
(2008)
Descriptions
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 Faultspan> 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 3387-3799m (rel. to rig floor, 9,45m abv gnd)
Keywords
Originally assigned keywords
San Andreas Fault-Zone Observatory at Depth
Land based
Bit size
Borehole Drift Azimuth
Cablehead Tension
calculation
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
gamma ray
gamma ray logging
Hole Deviation
length
Pad 1Azimuth
Porosity from ZDEN or ZDNC
Potassium
Relative Bearing
Shear to Compressional Slowness Ratio
Shear Wave Slowness
Speed
Spontaneous Potential Shifted
Thorium
Uranium
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
Corresponding MSL vocabulary keywords
potassium
thorium
uranium
MSL enriched keywords
measured property
potassium
thorium
uranium
Inferred deformation behavior
microphysical deformation mechanism
time-dependent mechanism
tectonic plate boundary
transcurrent tectonic plate boundary
tectonic deformation structure
tectonic fault
Equipment
borehole logging
MSL enriched sub domains i
geochemistry
rock and melt physics
geo-energy test beds
Source publisher
Deutsches GeoForschungsZentrum GFZ
DOI
10.1594/gfz.sddb.1128
Creators
SAFOD
Citation
SAFOD. (2008). SAFOD Main Hole downhole logging data phase 2 (2005), 3387-3799m [Data set]. Deutsches GeoForschungsZentrum GFZ. https://doi.org/10.1594/GFZ.SDDB.1128
Dates
Issued:
2008-08-27
Language
en