Kingsrose Mining Limited
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How Has Kingsrose Identified Strongly Conductive Zones at the Rånbogen Prospect?
Kingsrose Mining Limited (ASX: KRM) is making significant strides in its exploration efforts at the Råna Nickel-Copper-Cobalt Project in Norway. The company recently completed the acquisition and interpretation of magnetotelluric geophysical surveys, specifically SPARTAN MT, at the Rånbogen area within the project. So, what have these surveys revealed?
The Role of SPARTAN MT in Identifying Conductive Zones
SPARTAN MT is a geophysical method used to survey the electrical resistivity of rocks at depth. In the case of the Råna Project, Kingsrose aimed to identify areas of low resistivity or high apparent conductivity, which could indicate the presence of highly conductive sulphide nickel-copper-cobalt mineralization.
Results: Strong Conductivity Anomalies at Rånbogen Prospect
The geophysical surveys at Rånbogen have led to the identification of four discrete and strong apparent conductivity anomalies, stretching over a strike length of 1. 8 kilometers. Three of these anomalies, named "Rånbogen 01," "Rånbogen 02," and "Rånbogen 04," are hosted within pyroxenite and peridotite lithologies of the Råna intrusion.
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These lithologies are highly resistive, making the conductive responses more likely to be associated with sulphide mineralization.
Another anomaly, called "Rånbogen 03," is a steeply south dipping, highly conductive conductor located at the basal contact between the intrusion and footwall gneiss. This contact area is known to contain conductive graphitic rock units and is considered a highly prospective setting for the accumulation of massive sulphides.
Furthermore, where the conductive anomalies extend to the surface, they show a strong correlation with nickel-copper mineralized massive and disseminated sulphide identified by historical rock chip sampling. Additionally, target "Rånbogen 02" aligns well with historical drilling results that returned promising intercepts of nickel, copper, and cobalt.
Progress Towards Detailed Drill Targeting
To further refine their targeting, Kingsrose is conducting ground-based and downhole electromagnetic surveys at Rånbogen. These surveys will aid in identifying specific areas for drilling.
Future Plans: Testing Conductive Targets
In early August, the drill rig will be shifted from the Bruvann Mine area to Rånbogen using a helicopter portable system. This move will allow Kingsrose to test the conductive targets identified through the geophysical surveys. The company is optimistic about the prospects, as three out of the four conductive bodies align with mineralized sulphide rock chip samples and are located within or at the base of the known intrusion.
Andrew Tunningley, the Head of Exploration at Kingsrose, expressed his confidence in the targets, emphasizing the limited historical drilling in these areas. The previous drilling had intercepted broad zones of disseminated mineralization near the surface and higher-grade intervals associated with massive sulphides.
Kingsrose Mining's exploration efforts at the Rånbogen Prospect in Norway have yielded positive results. The identification of strongly conductive zones through the SPARTAN MT geophysical surveys has provided valuable insights into potential mineralization. With plans to further refine targeting and carry out drilling tests, Kingsrose is on track to unlock the full potential of the Råna Nickel-Copper-Cobalt Project.
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