- Akorade Project
Drill-ready / Drilled Prospects
Nana and Scorpio targets (Apankrah Deposit).
The Dansuom prospect was first identified as one of a number of soil anomalies located on the POW Prospecting Licence. It is a north-trending, open 1,500m x 250m gold-in-soil anomaly defined by gold values >100 ppb which has been further identified by trenching to be controlled by a sheared contact between an intrusive granitoid unit and volcanosedimentary units. The Dansuom structure is a high potential area showing wide zones of quartz veining and silicification associated with elevated gold values. The structural trend appears to be a splay off of a larger (20km+) regional structure located east of the granitoid unit which extends southward becoming the Asuogya-Ayiem trend. To date, drilling has tested below a series of historical trenches at Dansuom Central with the geology and the assay results in the drill holes correlating well with those observed in the trenches.
A total of 7 holes totaling ~900m to evaluate additional resource potential; drill highlights include:
- 7m of 1.2 g/t Au
- 11m of 2.9 g/t Au, including 3.6m of 8.0 g/t Au
- Channel POWCS008: 70.0m of 1.01 g/t Au including 26.0m of 1.76 g/t Au;
Subsequent road sampling and geophysical programs identified a 70m road cut of 1 g/t Au between two of the drill fences indicating the lower grade continuity; one 1m sample of crackled quartz vein return 6 g/t au – this has not been followed up to date. The induced polarisation survey (gradient and pole-dipole) characterised the known gold bearing structure (coincident chargeability and resistivity anomalies approximately 300m in length and 50m in width) and identified numerous similar signatures in the immediate vicinity, in particular the Dansuom North anomaly which is greater than 600m in length and averages 200m in width, and the Dansuom South anomaly, 1000m by 50m.
The current focus is on the Dansuom North target, a geophysical anomaly with characteristics of the previously drill Dansuom Central target work program is to complete a detailed auger sampling program over the known anomaly on 150m line spacing and 25m sample spacing to support a drill evaluation decision.
The AA Veins target is located on the Asuogya Prospecting Licence. The target area was identified based on historical mapping, grid soil sampling, auger sampling and artisanal workings. A VTEM/magnetics/radiometrics airborne geophysical survey was completed by Geotech Airborne over the AA Veins target indicating strong conductance zone (VTEM) shallow and deep signatures. Drilling intersected variably sheared metasedimentary rock units, with those more carbonaceous sections hosting increased quartz veining, presence of pyrite mineralization and increased gold grades. The structure was partially defined during the limited program, identifying a gold enriched, vein hosting, carbonaceous shear zone. Castle Peak received an NI 43-101 compliant Technical Report from SRK covering the Asuogya concession in December 2011. SRK recommends additional ground based target generation activity including trenching or detailed geophysical surveys to prioritize higher potential portions of the regional structure.
A total of 18 holes totaling ~4,00m to evaluate resource potential; drill highlights include:
- 13m of 1.0 g/t Au
- 16m of 1.1 g/t Au
This trend crosses the Enyinase and Simpa Prospecting Licences and is currently anchored by a near surface mineral resource off of the Castle Peak Mining Ltd. prospecting licences, the Akoko North resource (1.1mt @ 2.2g/t gold for 77,4000 ounces*) of Castle Minerals Ltd. The expression of the mineralised trend is further defined as both a near surface and deeper conductor in our airborne VTEM (Versatile Time Domain Electromagnetic survey (VTEM plus magnetics plus radiometrics)) survey. Additional support for the prospective mineralised trend resulted from previously complete 4m auger sampling (200m line spacing, 50m sample spacing) further defining the co-incident geophysical trend with a +70ppb gold anomaly.
The current anomalous gold zone measures approximately 1,000m in length with two parallel zones with an aggregate width of 150m to 200m and is open.
* August 25, 2011; www.castleminerals.com/downloads/resource-statement-akoko-north.pdf; Castle Peak Mining Ltd nor its qualified person has reviewed Castle Minerals resources for compliance with N.I. 43-101. There is no guarantee that mineralisation on an adjacent property continues onto Castle Peak Mining Ltd’s land position.
A targeted auger sampling program based on a conceptual geological model and wide spaced multi-element soil samples resulted in the rough definition of a high potential prospect. This roughly 2000m long section of inferred thrust fault juxtaposing magnetic and non-magnetic volcanic units of the Birimian that has indications of magnetic mineral destruction and is proximal to an inferred small volume granitoid intrusive unit. The previous regional auger lines returned a 300m section of samples that return values between 100ppb and 350ppb gold with an additional 250m to the west returning a range of 20ppb to 1705ppb gold.