Dec 3 2010
Seafield Resources Ltd. (TSX VENTURE:SFF) has announced assay results from the first three drill holes at its Miraflores property at the Quinchia Gold project, Risaralda, Colombia.
The Quinchia project contains a number of porphyry and porphyry breccia open pit targets including the breccia style deposit at Miraflores.
- Hole QM DH-03 was drilled from the NE contact to the SW contact through the centre of the Miraflores porphyry breccia pipe body and intersected 449 metres grading 1.29 g/t Au, including 23.95 metres grading 9.18 g/t Au
The Miraflores deposit currently contains an inferred mineral resource of 18.6 million tonnes grading 1.3 g/t gold at a cut-off grade of 0.5 g/t Au for a total of 776,000 ounces of gold. Using a cut-off of 0.3 g/t Au, the inferred resources expand to 976,550 ounces gold. The mineral resource estimate is based on 3,624 metres of drilling in ten diamond drill holes carried out in 2006 and 2007, and 154 underground samples. The current diamond drill program was designed to expand the resources and better delineate the porphyry intrusion breccia body which hosts the gold mineralization. Core logging from several of the current holes shows that the breccia body is more extensive at depth than was inferred from previous drilling. A total of 4,132 metres were drilled in 12 holes during the recently completed program.
Of the first three holes reported here, holes QM DH-01 and QM DH-02 were drilled at an inclination of -60° to define the projected margin of the breccia body whereas QM DH-03 was drilled at an inclination of -50° to a depth of 596 metres from the NE contact to the SW contact through the centre of the breccia body.
Geologically the Miraflores breccia body consists of a number of variably mineralized, separate, intrusive porphyry breccia phases with the better gold mineralization being associated with a later clean breccia phase which is cemented by vuggy quartz, carbonate and epidote associated with pyrite, sphalerite, chalcopyrite and galena with local visible gold.
Seafield President Anthony Roodenburg stated: "With the best hole ever drilled on the Miraflores project, we are very optimistic that we will see an increase in the inferred resource, and our continuing exploration and drilling on the other porphyry targets on our large property will allow us to further increase resources in the district."
Qualified Person
Stewart D. Redwood, Consulting Geologist to Seafield, is a qualified person as defined by National Instrument 43-101 and prepared or reviewed the preparation of the scientific and technical information in this press release with respect to the assay results from the Miraflores drill program. Dr. Redwood is a Fellow of the Institute of Materials, Minerals and Mining (Number 47017), a professional association and designation recognized by the Canadian regulatory authorities. Dr. Redwood verified the data disclosed in this release, including the sampling, analytical and test data underlying the information contained in this release. Verification included a review and validation of the applicable assay databases and reviews of assay certificates.
Sample Collection, Preparation, Analyses and QA-QC
The core samples were split by rock saw and half of the core was sampled. Core samples were prepared by SGS laboratory in Medellin and were assayed at the SGS laboratory in Lima, Peru. Gold was analyzed by fire assay on a 30 gram sample with atomic adsorption spectrophotometer (AAS) finish. Samples above 5.0 g/t Au were repeated by fire assay on a 30 gram sample with gravimetric finish. Blank, standard and duplicate samples were routinely inserted for quality assurance and quality control.