EQT.V Equitas's Garland survey finds 9 areas of conductivity
2015-05-13 06:43 ET - News Release
Mr. Kyler Hardy reports
EQUITAS RESOURCES CORP. VTEM SURVEY IDENTIFIES NINE NICKEL-COPPER SULPHIDE TARGETS AT THE GARLAND PROPERTY
Equitas Resources Corp. has released final results from the VTEM plus airborne survey completed on the Garland property located 30 kilometres southeast of the Voisey's Bay mine in Labrador, Canada. A detailed interpretation of the final processed data has identified significant new areas of conductivity.
Highlights include:
Nine areas of conductivity prospective for nickel-copper sulphides are present.
Most responses are at the very limit of, or significantly deeper than, detection limits of historic surveys.
Targets include conductivity trends of up to over one kilometre in length, with no previous drilling.
The overall nature of the anomalies highlights the potential for discovery of buried Voisey's Bay analogues at the Garland property.
The company is encouraged with the final results from the VTEM survey and has begun preparing for a summer exploration program. Exploration on the target areas is expected to commence in late June. Evaluation of the anomalies will include mapping and prospecting, 30 line kilometres of large-loop electromagnetic surveys, and up to 4,000 metres of diamond drilling. Work permits have been submitted to government, and proposals from service providers are currently being evaluated.
The 2015 VTEM survey consisted of 645 line kilometres of north-south-oriented flight lines at 300-metre line spacing. Data were interpreted by geophysicist Alan King of Geoscience North. Quantitative modelling was performed on the most conductive core of the anomalies present. The full extent of the conductive system detected may be approximated by the number of lines (at 300 m spacing) the anomaly is observable on. Nine distinct areas of anomalous conductivity prospective for nickel-copper sulphide mineralization have been identified. The following are key elements of the interpretation for each anomaly.
Anomaly A (589205E, 6219700N) is modelled as a 200-metre-long, east-west striking, minus-20-degree south-dipping plate with a dip extent of 50 m. Conductance is modelled at 800 Siemens, with a depth to top of 267 m below surface. The anomaly possibly extends over two to three lines. There is a strong coincident magnetic response. The anomaly area occurs 250 m south of a multi-kilometre-long east-west lineament interpreted to be part of the Gardar-Voisey's Bay fault system, a major structural control on emplacement at Voisey's Bay.
Anomaly B (586480E, 6219035N) is modelled as a 400 m long, east-west striking, minus-10-degree south-dipping plate with a dip extent of 20 m. Conductance is modelled at 10,000 Siemens, with a depth to top 178 m below surface. There is an adjacent moderate-to-strong magnetic feature. The anomaly is observable over two to three lines. The east-west strike is notable as being parallel to the Gardar-Voisey's Bay fault trend.
Anomaly C (576570E, 6218255N) is interpreted as a 200 m long, east-west-striking, flat-lying plate with a dip extent of 60 m. Conductance is modelled at 400 Siemens. Depth to top is interpreted at 162 m. This is a well-defined single-line response in a magnetically quiet area at the interpreted suture between the Archean Nain and Proterozoic Churchill cratons, remarkably similar to the location of the Discovery Hill mineralization at Voisey's Bay.
Anomaly D (582800E, 6223725N) is modelled as a 300 m, east-west-striking, flat-lying plate with a dip extent of 100 m. Conductance is modelled at 30 Siemens. Depth to top is interpreted at 20 m. Coincident with a magnetic low area, the response is observable over six lines. Conductance is too high for a clay response and possibly consistent with weak sulphide mineralization, but may also be due to trapped brines at the base of the overlying lake. The anomaly is positioned along a pronounced member of the Gardar-Voisey's Bay fault system. Lake sediment geochemical data from the Geological Survey of Canada (National Geochemical Reconnaissance open file for Labrador) indicate a combined nickel-copper-cobalt lake sediment anomaly in the overlying lake. The nearest anomalies of this type in the Nain province occur in a chain of lakes four kilometres to seven kilometres east (an interpreted down-ice direction of glaciation) of the Voisey's Bay mineralization. The coincident structural setting and geochemical anomaly flag this response for further evaluation.
Within the survey data, five additional anomalies of a more subtle nature were also detected. Commenting on anomalies G, H, I, J and M, Mr. King stated: "Most of these are single line or lower amplitude, but usually well-defined late-time anomalies. Given the wide 300 m line spacing and the expected low responses in off-time AEM data for excellent conductors, any one of these could be an indication of economic mineralization. Other possible conductivity sources in the project area include graphitic and sulphidic gneisses, and lithologies containing appreciable concentrations of interconnected magnetite grains."
Anomaly G (584390E, 6215680N) is interpreted as a 200 m long, 130-degree-striking, minus-80-degree southwest-dipping plate, with a dip extent of 10 m. Conductance is modelled at 25,000 Siemens. Depth to top of the plate is interpreted at 80 m. There is an adjacent moderately magnetic response. The anomaly is observable over one to two lines.
Anomaly H (582285E, 6216705N) is interpreted as a 200 m long, 105-degree-striking, minus-70-degree southwest-dipping plate, with a dip extent of 10 m. Conductance is modelled at 100 Siemens. Depth to top of the plate is interpreted to be 76 m. The response has a possible extension over two to three lines. There is a coincident magnetic high signature. The response occurs at the intersection of an east-west lineament with a northeast lineament.
Anomaly I (581671E, 6217430N) is interpreted as a 30 m long, 270-degree-striking, minus-77-degree north-dipping plate, with a 20 m dip extent. Conductance is modelled at 5,000 Siemens. Depth to top of the plate is interpreted at 97 m. The anomaly has a coincident strong magnetic high and occurs as a single-line response.
Anomaly J (583470E, 6217455N) is interpreted as 60 m long plate, 090-degree-striking, minus-75-degree north-dipping plate, with a five m dip extent. Conductance is modelled at 100 Siemens. Depth to top of the plate is interpreted at 34 m. There is a coincident moderate magnetic signature. The anomaly is observed over three to four lines westward toward anomaly I, giving the entire trend a possible length of 1.8 kilometres.
Anomaly M (586485E, 6221675N) is interpreted as a 30 m long plate, 270-degree-striking, minus-75-degree north-dipping plate, with a five-metre dip extent. Conductance is modelled at 20,000 Siemens. Depth to top is interpreted at 73 m. There is a coincident moderately magnetic response. The anomaly is observable over two to three lines.
Key features of the VTEM plus system include:
Transmitter loop diameter -- 26 m;
Peak dipole moment -- 425,000 NIA;
Transmitter pulse width -- seven ms;
VTEM plus receiver -- Z, X coils with dB/dt recording;
Full waveform recording;
Low base frequency (30 hertz) for penetration through conductive cover;
High spatial sampling, two metres to three metres;
Receiver located in the middle of circular transmitter coil provides overall systems symmetry.
Specialized processing products relevant to nickel sulphide exploration include:
Calculation of decay times (tau) -- the best single parameter to quickly scan the data for conductors of interest anywhere in the depth range of the system;
Calculated B field -- particularly useful for slow-decaying anomalies from high conductance targets.
Commenting on the anomalies, vice-president exploration Everett Makela said: "Results from the VTEM survey are highly promising. Compilation of previous work indicates that almost all of the anomalies represent newly identified areas of conductivity at the very limit or significantly below depth detection of earlier surveys. None are explained by the available observed surface geology, a mixture of anorthosite, diorite and granite. The east-west strike of the majority of anomalies is notable in that the major structural controller on emplacement at Voisey's Bay was the east-west-trending Gardar-Voisey's Bay fault system, a prominent structural feature on the Garland property. Many of the anomalies display good correlation with east-west and northeast lineaments as interpreted from the known geology, magnetics and topography. The observable trends of many of the anomalies, up to one kilometre or greater, lend further encouragement for discovery of significant mineralized systems. The overall nature of the interpreted anomalies is in accord with our exploration model for Voisey's Bay-style mineralization on the property being overlain by flat-lying, sheet-like intrusive bodies."
An updated map of the anomaly areas has been posted on the company's website.
National Instrument 43-101 disclosure
Everett Makela, PGeo, vice-president, exploration, for Equitas Resources, a qualified person as defined by National Instrument 43-101, supervised the preparation of the technical information in this news release.
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