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Exploration

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14-Nov-08 - Completion of Anglo American Transaction (more...)
12-Nov-08 - Nautilus Minerals Announces US$266 Million at September 30, 2008 (more...)
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09-Jul-08 - Environment Quarter 2 2008 Solwara 1 Environmental Fact Sheet (more...)


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Nautilus is exploring for high-grade polymetallic (copper, gold, zinc, silver) seafloor massive sulphide (SMS) deposits within the western Pacific Ocean's "Rim of Fire".

2007 NAUTILUS EXPLORATION PROGRAM

The majority of work in 2007 was undertaken in the territorial waters of Papua New Guinea (PNG) located to the north of Australia.
In March 2007, Nautilus launched the world's largest commercial exploration program for high-grade SMS systems. This program involved technical input from representatives seconded to Nautilus from Teck Cominco Limited and included extensive environmental studies, resource definition drilling, sampling and related metallurgical and mine development studies on Solwara 1.
The program was executed with a budget of approximately US$23 million with zero lost time safety incidents. Canyon Offshore Inc. (Canyon) were the lead contractor for the Remote Operate Vehicle (ROV) and other deck equipment. The Nautilus chartered vessel was the Wave Mercury (March 21, 2007).

APPLYING NEW TECHNOLOGIES

During 2007 Nautilus continued to refine and develop its SMS exploration strategy, related techniques and tools for this new industry.

Remote Operate Vehicle (ROV) Drill

A major 111-hole core drilling program was undertaken using new "state of the art" ROV mounted drill rigs that were deployed on the seafloor and are capable of drilling up to 19 metres into the seafloor.

Deep Ocean Electromagnetic Exploration

Nautilus partnered with teck Cominco ltd. and the Vancouver-based Ocean Floor Geophysics inc. to develop, deploy and protect the intellectual property associated with new deep-ocean Electromagnetic (EM) technology. With this EM technique in our exploration toolbox, Nautilus will be able to better target future drilling, allowing Nautilus to test future systems more rapidly, cost effectively, and to build on our current competitive advantages in the world of seafloor resource development.

DISCOVERY OF SOLWARA 5,6,7 and 8

During the 30-day Greenfield exploration program Nautilus identified four new prospects, Solwara 5,6,7,8. The assay results and techniques are discussed in the June 20, 2007 and July 11, 2007 announcements.

Prospect Samples Au g/t Cu % Zn % Ag g/t
Solwara 5 13 17.37 6.72 7.78 273
Solwara 6 4 18.10 14.24 18.66 217
Solwara 7 7 17.15 5.87 24.08 404
Solwara 8 12 16.90 6.10 32.50 328

WORLD'S FIRST 43-101 RESOURCE STATEMENT

A successful exploration year culminated in Nautilus releasing the world's first NI 43-101 compliant resource estimate for a portion of Solwara 1. Results were as follows (December 20, 2007):
  • Indicated Mineral Resource: 870 kt @ 6.8% Cu, 4.8 g/t Au, 23 g/t Ag, 0.4% Zn.

  • Inferred Mineral Resource: 1,300 kt @ 7.5% Cu, 7.2 g/t Au, 37 g/t Ag, 0.8% Zn.

The resource estimate completed by Golder Associates Pty Ltd.

The area drilled in 2007 was constrained by the time available for drilling as a result of the vessel contract term, and the depth limitations of the new ROV rigs. As a result, it was not possible to pursue the western extensions of the system, nor test a number of interesting EM anomalies in the vicinity.