GEOTECH

For a PDF of this paper click here. PRESENTED AT AEGC 2018 SUMMARY A ZTEM survey over the …

For a PDF of this paper click here Introduction ZTEM™ (Z-Tipper Axis Electromagnetic) surveys were conducted over the …

For a PDF of this paper click here Summary Survey results from ground IP-Resistivity, Spectrem air-borne electromagnetics and …

ZTEM™ airborne electromagnetic surveys over the Copaquire porphyry deposit, in northern Chile, were designed to map its alteration and structure due resistivity contrasts, to depth, based on successful applications of the method in north America.

In September, 2009, Geotech Ltd. carried out a helicopter-borne geophysical survey for Pebble Partnership over the Pebble Property situated in the Bristol Bay region of southwest Alaska, approximately 320 km southwest of Anchorage. Principal geophysical sensors included the Z-axis Tipper Electromagnetic (ZTEM) system and caesium magnetometer. A total of 250 km were flown at a nominal line-spacing of 200m over a 60 km2 area. The objective of the ZTEM survey was test its ability to map the Pebble porphyry deposit from surface to depth, based on resistivity contrasts.