2024-03-28T21:19:01Zhttp://doidb.wdc-terra.org/oaip/oaioai:doidb.wdc-terra.org:472016-11-25T15:14:26ZDOIDBDOIDB.SDDB
10.1594/GFZ.SDDB.1295
Electrical Resistivity of Cores of the KTB Pilot Hole VB1
KTB, WG Geophysics
Electrical Resistivity of Cores of the KTB Pilot Hole VB1
2010-09-29
Potsdam, Germany
Deutsches GeoForschungsZentrum GFZ
Dataset
http://dx.doi.org/10.1594/GFZ.SDDB.1295
Earth Science
EARTH SCIENCE
Solid Earth
Rocks/Minerals
Minerals/Crystals
EARTH SCIENCE
Solid Earth
Deep Drilling
Well-Logging
EARTH SCIENCE
Land Surface
Erosion/Sedimentation
Sediment Compositon
Date of Sampling
Frequency
Number of analyses/measurements
Resistivity_Max
Resistivity_Mean
Resistivity_Min
calculation
Land based
Complete
49.5898
49.5898
12.1
12.1
KTB
German Continental Deep Drilling Program
BMBF
Bundesministerium für Bildung und Forschung
cc-by
English
SDDB
Scientific Drilling Database
http://www.scientificdrilling.org
DATA CENTER CONTACT
###DC_PERSONNEL_LAST###
Online Internet (HTTP)
2808 DataPoints
text/tab-separated-values
In general, four-electrode devices are used to measure the resistivity on original (unprepared) cores and on mini cores drilled from these original cores. The in-phase and the out-of-phase signal is measured and therefore the complex resistivity is determined. All measurements are performed under surface conditions (room temperature and atmospheric pressure). Four point like electrodes are situated at the core surface along a semicircle in a plane perpendicular to the core axis. The two current electrodes are opposite to each other. The electrodes are in contact to the sample by a porous plastic material soaked with 0.1 molar NaCl solution. Voltage and current is measured by a lock-in-amplifier at 120 Hz frequency. Due to high contact resistances, only the magnitude of complex resistivity is used. By computer controlled rotating of the core and moving of the electrode arrangement along the cores z axis, resistivity as a function of azimuth and length is measured.
CEOS IDN DIF
9.7