Duke Exploration Ltd (ASX:DEX) has vastly improved its understanding of the Bundarra Project in Queensland through a comprehensive geophysical data synthesis and re-interpretation of the Bundarra Intrusive Complex’s (BIC) geological framework and structure.
Commissioned from Leigh Rankin of GeoInterp, the study provides an understanding of potential copper-bearing fluid pathways previously unrecognised within the project, possibly indicating the source(s) of copper for the BIC.
This data has strengthened Duke’s targeting model and highlighted multiple potential fluid pathways and prospective copper mineralisation sites to be investigated, particularly a right lateral ‘wrenching’ along a northeast-trending transfer zone that may be key to BIC emplacement.
“Revised strategy starts to deliver”
“We are very excited to receive Mr Rankin’s geophysical synthesis report at this juncture of our exploration program,” Duke Exploration managing director Philip Condon said.
“Our plan was to bring this report together with the previous diamond drilling results and the results of the current RC (reverse circulation) drilling activity, which we are now finally beginning to receive, in order to further refine our targeting of larger-scale copper mineralisation.
“This report delivers that and in addition, we have gained a new understanding of potential copper fluid pathways and fluid sources, which has never been seen before by any previous explorers.
“As a result, both existing target areas of focus have been confirmed like Rogers and Isens, and new and exciting areas have been added, all relating to potential copper fluid pathways.
“This is where our revised strategy starts to deliver results and I thank our loyal shareholders for their ongoing support.”
The geophysical and structural interpretation of the BIC indicated a reactivation of its structure appears to be controlling the placement of copper mineralisation, influencing where it is deposited within the local geology.
This new structural and geological interpretation of the BIC is based on an interpretation of all major available geophysical data sets available to Duke, with a detailed interpretation of magnetic data demonstrating the composite intrusive nature of the BIC.
These new interpretations are being integrated into Duke’s exploration program, where a number of zones of interest will be validated and ground-checked for possible copper and copper-gold mineralisation.
These targets are being prioritised based on lithological, structural and alteration criteria from available geophysical and geochemical datasets.