New Copper Discovery with Gold East of Teck Hill, Marshall Lake Property
- Copper values range from 0.51% to 18.0%
- Gold values range from 1.06 grams per tonne to 15.35 grams per tonne
- Silver values range from 86.3 grams per tonne to 408.0 grams per tonne
"This new copper find is particularly important since it supports a model that the stringer system on the Teck Hill claim links to an upper phase massive sulphide that is more zinc rich and this phase could occur within the southward projection of the Marshall Lake mineralized tuff sequence in a relatively, unexplored part of the property. This increases the chances of a new discovery." Comments Paul McGroary, director.
East West Resource Corporation (TSX-V: EWR) and Eyeconomy Holdings PLC (UK-PLUS: EYE) announce that backhoe trenching on an outcrop 550m east of the Teck Hill, the original copper discovery on the Marshall Lake property, has exposed a new copper showing on line 9E that represents a major phase change from the stringer copper zone on an upper massive sulphide phase. Massive pyrite becomes massive chalcopyrite in this new exposure.
The zinc phase of this system was found in December (see News Release December 13, 2006) with zinc values ranging from 3% – 12% exposed by trenching, 350m east of this new copper discovery. Therefore an important component of a VMS (volcanogenic massive sulphide) has been located.
The gold values are highly elevated ranging from 1.06 grams per tonne to 15.35 grams per tonne, where the majority of gold values on the Teck Hill and Gazooma showings were 1.0 grams per tonne. Silver values are also elevated ranging from 86 grams per tonne to 408 grams per tonne.
The 5 samples were taken along a 30 m strike length in the trench at roughly 6 m interval with the pyrite rich phase occurring on the north west end of the trench. The assays may indicate a high temperature phase of the system.
When analysing for basemetal and silver values (Copper, Zinc and Silver) were determined by ICP (inductively coupled plasma) after an aqua regia acid digestion. Assays exceeding 100 grams silver and 10,000 parts per million (ppm) copper were repeated using multi acid digestion and atomic absorption (AA). Check assays were run on high values. Gold values were determined by fire assay extraction on 30-gram samples followed by an AA finish.
ALS Chemex in Thunder Bay carried out preparations of the samples outlined in this news release and ALS Chemex in North Vancouver carried out assaying.
The project set out above is being supervised by R. Middleton, P.Eng, who is the qualified person and responsible for quality control of the assaying and reporting. More details are available on all of East West’s properties at www.eastwestres.com.
About the Marshall Lake Project:
East West Resource Corporation holds a 50% interest in the Marshall Lake Copper Zinc VMS project located 310 kilometres north of Thunder Bay, Ontario, Canada.
The Marshall Lake area was explored between 1954 and 1996 and resulted in the discovery of a series of high grade near surface copper zinc deposits.
The partner’s long-term strategy is to define and develop near surface base metal resources on the property while considering the deeper potential of the property as the database is developed.
The property became accessible after 2000 following the completion of all weather roads by logging operators. Road access now permits the deployment of heavy digging equipment, modern geophysical tools and significantly reduces exploration costs. During the second half of 2006 the joint venture partners built a network of drill access trails focusing on exposing the existing showings.
East West and its 50% partner Eyeconomy Holdings PLC now consider that they have control over the whole Marshall Lake base metal camp with an exploration area of more than forty-three square miles under option.
Two historical inferred mineral resource estimates are available from previous work based on an area within the property called the Main zone located 4 km northeast of the Gazooma copper zone:
K Zone (Main zone)
- 240,000 tons of 1.45% copper, 4.76% Zinc, 2.8 ounces silver, 152 m long to 96 m depth D. W. Sullivan (1969) based on 15 holes
103 Zone (Main zone)
- The 103 zone is an eastern extension of the "K" zone and was estimated to contain 1,174,810 tons (delineated from 57 drill holes) grading 0.82% copper, 2.71 % zinc, 1.77 ounces silver, 0.006 oz. gold. A. S. Bayne (1970).
Both the work by Sullivan and the work from A. S. Bayne were completed prior to NI43-101. All of the exploration results disclosed as mineral resource estimate immediately above are historic in nature and do not presently conform to National Instrument 43-101 Standards of Disclosure for Mineral Projects. They have been reviewed, but not verified, by Robert S. Middleton, PEng, who is the company's designated qualified person and responsible for the verification and quality assurance of its exploration data and analytical results. In the opinion of the qualified person, based on the information available, the mineralization on the Main or "K" Zone would be classified as an Inferred Mineral Resource based on the definition by the CIMM, since it will be required to do further in-fill drilling to establish grades. Therefore, the historic figures should not be relied on.
The joint venture partners will each contribute 50% to ongoing exploration expenditure.
New Copper Discovery Grab Samples |
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| Ticket # | Cu (%) | Zn (%) | Ag (g/tonne) | Au (g/tonne) | |||||
| 364845 | 16.50 | 0.32 | 381 | 4.12 | |||||
| 364847 | 8.72 | 0.25 | 229 | 15.35 | |||||
| 364848 | 18.00 | 0.46 | 408 | 5.19 | |||||
| 364849 | 0.51 | 0.01 | 86 | 1.06 | |||||
| 364850 | 4.18 | 0.13 | 173 | 3.21 | |||||
ON BEHALF OF THE BOARD OF DIRECTORS
Blake Colvin
Blake Colvin, Director