New life has been breathed into Copperstone Resources (a base and precious metals exploration company) coinciding with the release of this website. Under the leadership of Chris McKnight (CEO) 30 MSEK was raised to embark on an aggressive exploration programme at the Copperstone project aimed at discovering a Cu porphyry.
McKnight has 30 years’ combined experience in exploration, engineering geology and mine work and was recently appointed as the CEO.
"Throughout my preceding years as consultant to the Company I have developed a strong belief in the possibility of porphyry style copper-gold mineralisation seemingly left undiscovered within the midst of a large database that is the Copperstone project. It is that belief, and without hesitation, that has driven me forward in my quest to discover and unlock the great possibilities that lie therein. For all the tantalizing intercepts of copper, gold and zinc mineralisation from nearly 34km of historical drilling, and a further 5km of drillings cited by myself, I have firmly maintained that there must be a common unifying hydrothermal event that has created such an area of local richness."
Chris McKnight CEO, Copperstone
Identifying a copper porphyry target in Arvidsjaur Kommun
Extensive historical data from this project shows widespread Cu, Au and Zn values in sulphide veins. These veins are broadly coincident with alteration styles and structural features characteristic of porphyry mineralising systems such as hydrothermal breccia and phyllic alteration.
In October 2017 exploration began in earnest to try and unlock this potential. Two ground geophysical programmes (ground magnetics and Natural Source Audio Magnetotellurics – NSAMT) were implemented covering a large portion of the project. The result was the identification of a large magnetic anomaly partially enveloped by a well-defined zone of elevated conductivity. The central magnetic anomaly was interpreted to represent an intrusive (possibly with elevated magnetic values due to alteration processes associated with mineralisation).
This anomaly is partly enveloped by a zone of conductivity interpreted to represent an alteration style that is common in porphyry copper systems (advanced argillic alteration). The identification of these geophysical anomalies and their spatial relationship to each other provided a high-quality drill target that corresponded to the genetic model for a Cu porphyry target.
Drilling campaign underway
Encouraged by these results the exploration team embarked on a drilling campaign in January 2018 aimed at testing this feature. Approximately 7 000 m of diamond drilling will be implemented in holes of roughly 700m each (subject to change as dictated by the outcome of the drilling).
Arvidsjaur Kommun, Sweden
There is a need to invigorate and grow this frontier sector in line with overall national interests, and we play a vital role as a local business in that grand initiative