Drilling Targeting High-Grade Cu-Au In Brazil
Meridian Mining UK S (TSXV: MNO) has commenced diamond drill and surface geophysical at its Cabaçal Copper-Gold project in Mato Grosso Brazil.
The first diamond drill hole (DDH) CD-001, being drilled by Rig One, is adjacent to the historical BP Minerals hole of JUSPD 596 that intercepted extensive high grade copper gold mineralisation.
Rig Two is now collared adjacent to JUSPD 228 targeting an eastern extension to the high-grade copper and gold zone of the shallower Easter Copper Zone.
Highlights of the exploration programme’s rollout:
- Two diamond drill rigs turning
- First phase of the DDH programme is to twin historical DDHs completed by BP Minerals/Rio Tinto;
- Rig One targeting JUSP596 historical intersection of 13.4m @ 5.2%Cu,2.7 g/t Au,9.5 g/t Ag and 0.5% Zn;
- Rig Two targeting shallow high grade copper gold mineralisation of the Eastern Copper Zone with a target interval from 50m;
Surface Electromagnetic (EM) Surveys
o First surveys commenced on the zone southeast of the Cabaçal mine;
o Project first Bore-hole EM surveys on the Cabaçal project to commence shortly;
The first phase of the drill programmes has a pre-set selection of 15 drill targets. The first EM survey lines were undertaken last week in a zone to the South of the historic Cabaçal mine workings.
CEO, Dr Adrian McArthur, said this programme is targeting both high conductive mineralisation as well as more selective lower conductive anomalies associated with the disseminated sulphide type mineralisation typical of the Cabaçal mine.
The location and identification of the historical BP Minerals / Rio Tinto drill hole platforms and collars is ongoing and will play an important role in the validation of the geological database.
Rigs One and Two will be using HQ Core size barrels. The recovered DDH core is being logged and cut on- site at the Cabaçal core shed located in the former now rehabilitated buildings of the former mine. Drill core analyses will be done by ALS, with preparation at their facilities at either Goiânia or Belo Horizonte.
Geophysical surveys are being conducted by GeoMag, using a TEM57-MK2 Transmitter and PROTEM receiver for surface surveys and BH43-3 borehole three-dimensional time domain (TDEM) probe for sub- surface work. Quality control is performed daily by the geophysical representative of the Wellfield Group, before and data sent to the Company’s independent consultant, Core Geophysics. Modelling of conductivity responses is undertaken using industry-standard Maxwell software.
“The company has successfully started its drill program and surface EM surveys at Cabaçal,” Dr McArthur said.
“We have been able to manage this in a short time since acquiring Cabaçal and it shows the depth of experience of our Brazilian management team’s field experience and also the positive pro- work and pro-investment focus of the Brazilian regulatory authorities.
“This programme is being conducted under the strictest of preventative health and safety systems put in place and expanded during the Covid pandemic. The rigs are both drilling down towards Cabaçal’s mineralised geological horizons.”
