Carabella Resources Coal Exploration

/in /by

Coal ExplorationAirborne surveying for drilling optimisation

With hundreds of millions of dollars spent on drilling for coal exploration each year, GroundProbe has worked with Carabella Resources to use the unsurpassed resolution of the SkyTEM airborne technology to provide cost and time reductions in their exploration program.

The airborne program was flown in only a few days and covered over 2,500Ha, with preliminary results delivered within 48 hours of data acquisition.

The joint interpretation of the data performed by GroundProbe and Carabella has shown the airborne system to provide information on a number of features, including:

  • Location of basalt flows
  • Indication of depth of weathering
  • Inferred areas of reduced likelihood of coal seams

The data correlation with drilling clearly shows the benefits of SkyTEM, with no other airborne system able to deliver data to such high resolution from surface to over 100m depth.

This service means that Carabella can more effectively target its drilling program over key areas, reducing the cost and time required. In addition, drillhole casing depths can be optimised and the geological model is more accurate than would be possible with drilling alone. It may also prove useful for overburden characterisation.

The SkyTEM data has allowed us to improve the efficiency and effectiveness of our drilling program and improve our model of the resource

Mitch Jakeman, Managing Director, Carabella Resources

Prospecting for Gold-Copper mineralizations in Archean Greenstone, Qussuk, Greenland

/in /by

 

Download complete Case Study for Qussuk (PDF)

Introduction

The Qussuk gold-copper project operated by the Greenlandic prospecting  company NunaMinerals is located near the Qussuk bay in West Greenland 60 km North-East of the Greenlandic capital, Nuuk.

Combined geochemical and geophysical exploration located at least five exploration targets within a 20-km belt of altered volcanic rock. Several of the geophysical anomalies match known gold- and copper bearing zones.
Surface samples contain up to 35.8 g/t gold and 1.3% copper. Visible gold was first found in this area in 2007.

SkyTEM Survey

In 2007, a combined TDEM and magnetic SkyTEM survey was performed at the Qussuk project covering 48 km2 at a line spacing of 100 meters. The survey was flown with a peak moment of 130 kAm2 (high moment only) and with two receivers recording the response from both the z-and the x-component. Flight height was 20-60 meters and flight speed was relatively low, 30-50 km/h, due to the rapidly changing topography.