|
| | Abstract | | The present study investigated the electrical properties of the drillcore samples from the seafloor hydrothermal system in Okinawa, Japan, under the program of Cross-ministerial Strategic Innovation Promotion Program (SIP). Particularly, their features about resistivity and Induced Polarization (IP) were successfully measured. Resistivity features showed that the resistivity is essentially controlled by the connectivity of pore fluids, compared with the results of porosity measurements. A discrepancy between the resistivities measured in this study and those from Logging While Drilling (LWD) suggested that the resistivity is also affected by high temperature condition provided by the hydrothermal activity of the system. Relatively strong signals of the IP effect were obtained from the samples containing a large amount of sulfides. Differences of the peak frequency between the samples could be due to the grain size of the sulfides. |
|
|
|
| |
|