Introduction

Zymo is a 10,250 hectare property that lies approximately 40 kilometres west of the town of Smithers, in northwestern British Columbia. The geology and mineralization styles at the Zymo property indicate both copper-gold-silver porphyry and porphyry related bulk tonnage high sulphidation gold-silver-zinc replacement deposits. Most of the property has seen little or no exploration.

Status

Zymo was optioned to Canadian Gold Hunter, part of the Lundin Group, on May 22 2008. Canadian Gold Hunter may earn a 60% interest in the property by making cash payments totaling $350,000, making share issuance of 50,000 shares and completing exploration expenditures of $4 million over five years. They may earn an additional 10% interest by completing a feasibility study and an additional 5% by arranging mine financing for Eastfield. A minimum exploration expenditure of $800,000 must be completed in calendar 2008. The program will include extensive geochemical sampling, IP geophysical surveying and diamond drilling.

History and Geology

The first known mineralization on the property was recorded during reconnaissance work carried out in 1990 and the only significant exploration undertaken was between 1997 and 1999. The Zymo property hosts a large sericite-pyrite (phyllic) alteration system that covers approximately 4.6 square kilometres.

In 1999 Freeport Copper Company (Freeport-McMoRan) optioned the property due to its potential to be a Grasberg Analogue. They drilled six core holes, confirming the presence of a potentially large porphyry system and that the drilling suggested they were in the flanking zone of phyllic alteration. While all the holes but one intersected altered and pyritic intrusives, two holes cut promising copper values including: Hole 99-03: 23.8 metres of 0.14% copper, 0.21g/t gold and 3.7 g/t silver; Hole 99-06: 11.3 metres of 0.14 % copper, 0.1 g/t gold and 3.5 g/t silver. These occurrences lie within a copper and gold soil anomaly that measures approximately 1,000 metres by 800 metres and is open to the north.

Eight grab samples taken in a 200 by 200 metre area in the vicinity of Hole 99-06 averaged 0.38 % copper and 0.16 g/t gold. These chalcopyrite-bornite-magnetite occurrences indicate a high potential for the discovery of a large bulk tonnage copper-gold deposit.

Flanking the copper-gold mineralized area are extensive occurrences of zinc, copper, lead, silver, gold mineralization associated with siliceous pebble breccias and peripheral veins. Select grab samples of these well mineralized rocks have returned very high grades. While not representative of average grades these select samples returned values in the range of 1-11% zinc, 1-22% copper, 1-7 g/t gold and 2-1,600 g/t silver. A thin section study of mineralized samples shows that the mineral assemblages reflect an Andean style high-sulphidation copper-gold porphyry system.

An airborne Magnetic-EM geophysical survey was completed over the property in late 2004 and this extensive database has never been followed up.

Work in 2007

Work by Eastfield in 2007 discovered a new area of porphyry style mineralization approximately 4.5 km west of the main showing. Grab samples from this area returned copper values to 0.33% and gold values to 1.13 g/t indicating a significant copper gold system associated with a magnetic high that measures 1.0 km in length. The host rocks are intensely altered intrusives.

In the main showing area it was determined that some of the 1999 drill locations had been plotted incorrectly and that the main showings had not been tested. As well, another new showing was located by prospecting 800 m southeast of the main showing where a grab sample returned a grade of 0.92% copper, 0.26 g/t gold and 4.5 g/t silver. This sample displays intense sheeted quartz-sulphide veinlets that are cut by later sulphide and quartz veinlets. The nearest drill holes are over 500 m to the southeast and to the west, respectively.

Access

Zymo is accessible by good quality logging roads, as can be seen in the Google Earth image, that shows the claim boundary.


Click to enlarge

To view in Google Earth click here


New Zymo Discovery
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Overview and Maps
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