Heatherdale Resources Limited
Niblack Project
Niblack Project Overview Development / History Project Geology Exploration Program Location & Maps Technical Team

Project Geology

Niblack Target Zones


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Niblack is a precious metals enriched volcanogenic massive sulphide (VMS) deposit, containing significant quantities of copper, gold, zinc and silver.

VMS mineralization at the Niblack property is hosted within a thick sequence of rhyolite and includes six known target zones -- including the historic Niblack mine, Dama zone, Lindsy zone, Trio zone, Mammoth zone and the Lookout zone. Mineralization at Niblack is controlled by a fold repetition of the rhyolite sequence.

Based on a July 9, 2009 mineral resource estimate, using a US$50 NSR cut-off, the Niblack deposit comprises:

  • 2.6 million tonnes of indicated mineral resource grading 1.18% copper, 2.33 g/t gold, 2.19% zinc, and 33.18 g/t silver; and containing 67 million lb copper, 193,600 oz gold, 125 million lb zinc and 2.8 million oz silver; and

  • 1.7 million tonnes of inferred resource grading 1.55% copper, 2.08 g/t gold, 3.17% zinc, and 32.56 g/t silver and containing 58 million lb copper, 114,300 oz gold, 120 million lb zinc and 1.8 million oz silver.

    RESOURCE ESTIMATE TABLE
Preliminary metallurgical testwork has returned excellent recoveries.

Exploration potential

Niblack Property


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Heatherdale's technical team has reinterpreted geological data from the Niblack property, and is currently advancing an exploration program with excellent potential for delineating additional areas of high-grade mineralization. Exploration work is currently focused on the Lookout zone, where high-grade mineralization is open and plunging to the southwest.

The comprehensive 6,200-acre Niblack land package holds tremendous potential for identifying further zones of mineralization beyond the six known VMS targets.