PII Colorado Property
What is the PII Colorado Property ? .. what is the potential of this '100% owned, unencumbered' property. Has anyone read the technical report ? / PDF posted on the columbiametals.ca website ?
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Columbia Files NI 43-101 Technical Report For PII, 2005-2007
Aggressive Phase II Recommended
Toronto, Ontario - Columbia Metals Corporation Limited (TSX-V: COL) is pleased to announce that the Technical Report covering the exploration activities on the Company's 100% owned, unencumbered PII Colorado Property for 2005-2007 has been SEDAR filed and will be posted to the Company's Website.
Highlights
Anomalous gold (Au) mineralization was intersected in two (2) drill holes at Buena Vista Hill
Numerous induced polarization/resistivity (IP/R) anomalies were delineated of which 13 discrete IP/R zones have the characteristics suggestive of heavier skarn sulphides or sulphide stringer mineralization.
The potential source of the north-eastern gold (Au), copper (Cu) soil anomaly and Induced Polarization/Resistivity (IP/R) anomaly was located in drill holes DDH1106 and DDH1206, the source being a copper-gold-silver (Cu-Au-Ag) bearing pyrrhotite skarn.
Significant Ag, lead (Pb) and zinc (Zn) values were intersected within a mineralized structure in the Zinc Zone area.
Quartz-feldspar porphyry intrusive rocks and mineralogical alteration zones, possibly indicative of the presence of buried intrusive rocks were encountered.
Numerous untested or partially tested drill targets remain.
An excerpt from the summary from the NI 43-101 compliant Technical Report entitled Technical Report on PII Colorado Property by Gary Lohman, P. Geo. and Seymour Sears, P. Geo., independent qualified persons under NI 43-101, dated December 15, 2007 is reproduced below:
Excerpt
"The PII Colorado Property of Columbia Metals Corporation Limited is located within a Northwest trending belt of Cenozoic aged volcanic and related porphyritic intrusive rocks that has been emplaced within an older sequence of carbonates, calcareous sediments and granitic rocks. The belt occurs along the extreme western side of the Sierra Madre Occidental mountain range in the Eastern part of the State of Sonora Mexico.
In 2005, following the recommendations set forth by S. Sears (43-101 Report, October, 2004), the Company embarked on an exploration program consisting of detailed geological mapping, soil and rock geochemistry, ground geophysics and the initiation of a 3,000 metre diamond drill program. By the end of June 2006, the Company completed 3081 metres of diamond drilling (18 drill holes), 41.5 kilometres of induced polarization (I.P.) and ground magnetic surveys, 17.8 kilometres of gravity surveying in addition to continued geological mapping and prospecting.
The results of the exploration programs were successful in that:
Quartz-feldspar porphyry intrusive rocks and mineralogical alteration zones, possibly indicative of the presence of buried intrusive rocks were encountered.
Numerous induced polarization/resistivity (IP/R) anomalies were delineated of which 13 discrete IP/R zones have the characteristics suggestive of heavier skarn sulphides or sulphide stringer mineralization.
Anomalous gold (Au) mineralization was intersected in two (2) drill holes at Buena Vista Hill (DDH0105 and DDH0305).
The potential source of the north-eastern gold (Au), copper (Cu) soil anomaly and Induced Polarization/Resistivity (IP/R) anomaly was located in drill holes DDH1106 and DDH1206, the source being a Cu, Au, silver (Ag) bearing pyrrhotite skarn.
Significant Ag, lead (Pb) and zinc (Zn) values were intersected within a mineralized structure in the Zinc Zone area.
Geochemically anomalous Cu, Ag and Au were returned from drill core in the area of the Creek Zone.
Significant Cu, Ag +/- Au mineralization was located in 2 drill holes in the central and south-central portions of the property.
The geophysical program identified 33 discrete IP anomalies characterized by moderately strong to strong chargeability. Thirteen of these IP zones were classified as high priority targets, having an IP signature accompanied by lower resisitivities, suggestive of heavier skarn or stringer sulphide mineralization. Only 6 of these targets were partially tested by the recent drill program.
Due the presence of favourable soil and rock geochemistry, surface mineralization, drill intersections and untested, delineated geophysical targets, additional work is recommended with a focus on:
The Au potential of Buena Vista Hill;
The Cu/Au mineralization associated with the pyrrhotite skarns in the northeast;
The deep-seated porphyry Cu potential of the Central zone; and
The IP zones defined in the geophysical program.
At Buena Vista Hill, drill hole 1 intersected 5.73 metres assaying 1.24 g/t Au along the south western edge of a well defined, extensive Au, Cu soil anomaly. In the central portion of this feature, anomalous Au and Ag have been located in rock samples at surface, returning assays up to 6.59 g/t Au and 54.5 g/t Ag. The results to date are significant, indicating the presence of mineralization at both depth and surface. This target should be followed up with geologic mapping, trenching and additional geochemistry. Reverse circulation drilling should be conducted on priority targets.
In the northeast, a massive Cu/Au bearing pyrrhotite skarn was intersected by drill holes DDH1106 and DDH1206. Defined by extensive gossans and iron stained soils at surface, the skarn horizon intersected in drill hole DDH1206 returned 11.2 metres grading 2.25 g/t Au, 1.9 g/t Ag and 0.22% Cu including 1 metre grading 13.65 g/t Au. 5.1 g/t Ag and 0.29% Cu. Additional mapping and geochemical sampling are required to better define the geology and geometry of the host skarn as well as the tenor of the mineralization. Additional drilling is also recommended due to the success achieved in the first drill program. Provision should be made for the possibility of performing down hole geophysical surveying.
The Cu potential of the Central zone has been demonstrated in drill holes DDH1006 and DDH1706. In the northern portion of the Central zone, drill hole DDH1006 intersected andesite/andesite porphyry containing anomalous Cu throughout the extent of the hole including 2.66 metres grading 0.38% Cu and 10.5 g/t Ag between 96.18 - 98.84m. Drill hole DDH1706, located 1 kilometre south of hole DDH1006, intersected a variably altered andesite containing 100.6 metres grading 0.10% Cu and 5.5 g/t Ag. Where locally brecciated or stockworked, results include 3.05 metres grading 0.65 g/t Au, 20.26 g/t Ag and 0.57% Cu. These results are significant and this target should be further investigated by geologic mapping, prospecting and geochemical sampling. The priority targets identified in the induced polarization survey should also be pursued and additional drilling conducted.
In addition to the above, the re-interpretation of the geophysics by Stratagex Ltd. included the identification of 33 IP/R anomalies, 13 of which were considered high priority. To date, only 6 of these targets have been tested or partially tested by diamond drilling. Priority targets include Zone A adjacent to the Zinc Zone where drill hole DDH0806 intersected 53.96 metres grading 12.39 g/t Ag and 0.6% Pb/Zn. Included in this interval was a 1.0 metre intersection grading 225.0 g/t Ag and 10.52% Pb/Zn. Drill hole DDH1406 intersected IP zone D returning geochemically elevated Cu, Ag and local Pb, Zn from a porphyry that contained local, semi-massive pyrite, chalcopyrite and sphalerite veins. Located along the southern edge of a multi-element (Cu, Pb, Zn, Ag) soil anomaly, IP zone D may reflect a weak, southerly extension of the Zinc Zone mineralization and should be investigated further. IP Zone M, coincident with drill hole DDH1706, was also selected as a priority target in addition to 2 other IP targets within the Central Zone. Recommendations also include the investigation of these targets by prospecting, trenching and diamond drilling if warranted. The geophysical interpretation further highlighted the structural complexity of the PII Colorado property. To assist in interpreting the geology, a detailed review of the satellite imagery and structural mapping is recommended.
Additionally, all of the metalliferrous zones intersected in the drill program should be carefully re-logged and representative samples from each zone taken and submitted for petrographic and mineralogic analysis in order to provide a better description of the mineralogy and alteration associated with the mineralization."
This release has been prepared by John E. Steers, P. Eng., Qualified Person (QP) as defined by NI 43-101 of the Canadian Securities Administrators. Mr. Steers is the QP for Columbia Metals.
For further information please contact Columbia Metals Corporation Limited at (416) 364-6799.