|
| | Abstract | | I try to establish the suitable resistivity measuring method for ore samples taken at sea-floor hydrothermal deposits in order to improve the validity of the submarine electrical and electromagnetic methods. Until now, literature documentation was performed and the system which measures the resistivity of a submarine ore sample was built. Resistivity measurement using the black ore samples which imitated the sea-floor hydrothermal deposit ores was performed. As a result, for measuring the resistivity correctly, it is desirable to carry out by the following methods. (1) The resistivity of the sea-floor hydrothermal deposit ore sample containing sulfide minerals may have large frequency characteristics. The resistivity should be measured at frequency ranges from several 10 kHz which is used for induction logging to 1 Hz which is used for electrical survey. (2) In the experiment which investigates temperature dependency on resistivity, the temperature of a sample gradually is raised, and the resistivity should be measured after the temperature became stable. |
|
|
|
| |
|