Mr. Ian Bliss reports
NORTHERN SHIELD ANNOUNCES RESULTS OF 3D IP AT CRESTON COPPER PORPHYRY TARGET, ROOT & CELLAR PROJECT, NEWFOUNDLAND; DRILL PERMITS RECEIVED
Northern Shield Resources Inc. has released results of the 3-D induced polarization (IP) geophysical survey completed at the company's flagship Root & Cellar property on the Burin peninsula of eastern Newfoundland. The property is being explored for porphyry copper plus or minus molybdenum, gold and tellurium and for epithermal gold-silver-tellurium.
A review of the first 3-D inversion modelling of chargeability and resistivity over a 4.6-square-kilometre grid covering the Creston copper porphyry target has been completed with four priority targets defined. Three, IP-1, IP-2 and IP-3, appear to be connected, lying in the same zone of elevated chargeability. The fourth, IP-4, is a separate target to the north and possibly related to the Conquest gold zone.
Target IP-1
IP-1 is a near-surface chargeability response of approximately 9.5 millivolts per volt coinciding with a bornite/possible chalcocite occurrence found during ground truthing of the target. It plunges shallowly to the southeast into the IP-2 anomaly.
Targets IP-2 and IP-3
IP-2 extends from near surface to approximately 450 metres depth with chargeability responses from 9.8 to 12.5 millivolts per volt and resistivity averaging approximately 6,875 ohm-metres -- the strongest combined response in the survey and the highest-priority target from the survey. IP-3 has a modelled chargeability of nine to 11.2 millivolts per volt at depths between 245 and 570 metres and lies on the southern flank of a magnetic high that is interpreted as the porphyry intrusion that is driving the system. IP-2 and IP-3 combined have a strike length of approximately 1,000 metres with a trend parallel to both the diatreme breccia complex and the copper (lead-zinc) mineralization in the neighbouring quarries. These anomalies are on the edge of the grid and hence their geometry and magnitude cannot be fully determined. They also lie outside the area of Northern Shield's soil geochemical sampling in an area that has not been evaluated by prior exploration.
Target IP-4
IP-4 measures approximately 240 metres by 300 metres in plan extending from near surface to approximately 400 metres depth. It is characterized by chargeability of 8.5 to 9.0 millivolts per volt coincident with resistivity averaging approximately 9,350 ohm-metres, the most resistive area in the survey. This combination of elevated chargeability with strongly elevated resistivity is typical of disseminated sulphides hosted in quartz veins or silicified alteration.
Interpretation
The magnitude of the chargeability responses at Root & Cellar is consistent with expectations for the core of an alkalic porphyry system. Induced polarization responds to the surface area of sulphide rather than to copper grade, and alkalic mineralization is typically sulphide poor and dominated by high-tenor copper minerals such as bornite and chalcocite. Higher chargeabilities in porphyry systems are usually attributed to the alteration cap that contains abundant disseminated pyrite and not the mineralized core.
"This survey has done exactly what we asked of it. It has taken a copper showing we could stand on and shown us that it is the near-surface expression of something considerably larger, extending several hundred metres to depth, to the southeast and still open. We now have a clear, prioritized basis for drilling. Also, beyond defining the copper target, the survey has identified an untested target that may be part of the Conquest zone,"
stated Ian Bliss, president and chief executive officer of Northern Shield.
Next steps
Ground truthing of the targets continues and a permit for 15 new drill hole collars has just been received, in addition to the 14 that remain permitted from last year. Nine of these new drill hole collar locations are in the main Conquest zone.
The DasVision 3-D IP survey was completed by Abitibi Geophysics Inc. of Val d'Or, Que. The survey used a distributed receiver array employing IRIS Instruments FullWaver technology in a pole-dipole configuration, with 100-metre receiver dipole separations and current injections every 100 metres over approximately 4.6 square kilometres. A total of 148 of 150 planned current injections were completed and 9,464 data points were collected.
The technical information in this news release has been reviewed and approved by Mike Muggridge, PGeo, an independent consultant and a qualified person within the meaning of National Instrument 43-101, Standards of Disclosure for Mineral Projects.
About Northern Shield Resources
Inc.
Northern Shield Resources is a Canadian-based company, a leader in generating high-quality exploration targets that views greenfield exploration as an opportunity to find a minable, near-surface deposit at relatively low cost. The company implements a model-driven exploration approach to reduce the risk associated with early-stage projects for itself, its shareholders and the environment. This approach led Northern Shield Resources to option the Root & Cellar property from a Newfoundland prospector, who discovered the copper mineralization and then to its advancement to the large gold-silver-tellurium and porphyry copper system that it has become.
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