NEW POCKET-SIZE PHYSICAL PROPERTY INSTRUMENT FOR MEASUREMENT OF THE ELECTROMAGNETIC CONDUCTIVITY OF ROCK SAMPLES

THERE IS GEOPHYSICAL PROSPECTING INTEREST IN THE FIELD MEASUREMENT OF PHYSICAL PROPERTIES OF ROCK SAMPLES. CURRENTLY AVAILABLE ARE SMALL INSTRUMENTS FOR THE MEASUREMENT OF MAGNETIC AND ELECTRICAL PROPERTIES. NO SIMILAR INSTRUMENT FOR THE ELECTROMAGNETIC CONDUCTIVITY OF SAMPLES IS AVAILABLE WORLDWIDE. THE NEED CAN NOW BE FULFILLED UTILIZING MODERN ELECTRONIC TECHNOLOGY. THE OBJECTIVE IS THE DEVELOPMENT OF A SMALL EM CONDUCTIVITY METER FOR FIELD USE BY EXPLORATIONISTS. UTILIZING YEARS OF EXPERIENCE IN PHYSICAL PROPERTY STUDIES AND INSTRUMENTATION DEVELOPMENT BY ELLIOT GEOPHYSICAL CO. WILL MAKE THIS REALIZABLE. CRITICAL DESIGN IS A SENSOR TO CONVERT SAMPLE CONDUCTIVITIES INTO MEASURABLE OUTPUT FOR PROCESSING BY MICROPROCESSOR CONTROLLED ELECTRONICS. RESEARCH MUST DETERMINE BEST MODE OF OPERATION, FREQUENCY RANGE, AND SPEEDOF MEASUREMENT CONSISTENT WITH OPERATIONAL DEMANDS. A SUITE OF SAMPLES COVERING THE RANGE OF EM CONDUCTIVITIES OF INTEREST WILL BE COLLECTED FOR CALIBRATION. RESULTS WILL BE THE DEVELOPMENT OF A PRE-PRODUCTION, FIELD TESTED MODEL DEMONSTRATING ITS SCIENTIFIC USEFULNESS IN GEOPHYSICAL EXPLORATION. COMMERCIAL POTENTIAL IS WORLDWIDE.