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• Chulacoa

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Introduction

The Chulacao property, located 1,330 kilometers north of Santiago, covers the historic San Pedro high grade oxide copper mining district and is readily accessible by paved and good gravel road from the city of Calama 90 kilometers to the west.

Claims & Ownership

The property consists of 7 exploration concessions totaling 2,000 hectares staked and owned 100% by Polar Star.

Property Geology

The property lies within the western sub-zone of the main Chilean porphyry belt and is underlain by steeply dipping Tertiary tuffaceous sandstones and shales which are part of a NE trending anticlinorium. These upturned beds have been intruded by a younger salt diaper at least 500m in diameter and are overlain in part by recent pediment gravels which sheet of the anticlinorium into the Salar de Atacama.

Mineralization

Prior mining in the Chulacoa area exploited an atacamite-antlerite rich copper oxide manto from 2 to 5 metres thick developed in recent pediment gravels. The manto and old San Pedro mine overlie the steeply dipping tuffaceous sandstones which are also heavily mineralized. The younger salt diaper also contains copper oxide rich fragments up to 10m diameter over most of is exposed area.

Exploration History

There are no records of recent systematic exploration in the property area however small scale high grade (2-5% Cu) mining and cement copper production has been carried out at various times to the late 1980’s in the gravels, sandstone and diaper in and around the San Pedro mine. During Minera Polar’s June visits the workings and diaper were checked for uranium using an Exploranium GS135 gamma ray spectrometer. Uranium values encountered vary from 50 – 150 ppm and generally occur with the oxide copper.

Resource Potential

Exploration to date is insufficient to estimate resource potential of the exotic copper mineralization however antlerite is a copper oxide which typically developes very close to its primary sulphide source and since this area is within the zone of Chilean mega porphyries, its primary source could be a highly prospective porphyry copper deposit.