Airborne EM Survey over the Oldest Meteor Impact Site @ Exploration Geophysics Info

Airborne EM Survey over the Oldest Meteor Impact Site

This entry was posted by Tuesday, 24 July, 2012
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North American Nickel Inc. reports that fifty zones of conductivity, many with significant strike lengths, have been identified in preliminary data from its recently completed VTEM Plus helicopter time domain electromagnetic survey over its 100% owned Maniitsoq project in Southwest Greenland.

The Geological Survey of Denmark and Greenland (GEUS) had recently announced the discovery of the oldest-known meteorite impact site in the world, rousing the company’s interest in its Maniitsoq project.

More than twelve of the fifty have already been identified as higher priority zones which have the potential to become targets for the company’s upcoming drill program in August. A more detailed analysis of all the VTEM Plus data is underway.

NAN CEO, Rick Mark, states: “We are very pleased that the VTEM Plus system has been successful in delineating fifty new conductors. With this data, we already have a dozen new targets similar in priority to the three drill targets previously identified in last fall’s smaller SkyTEM survey, some with apparent strike lengths in excess of 1 km. Now that we can point conclusively to conductors occurring throughout the 75 km long belt, we are more comfortable than ever in describing this as a camp-scale exploration play.”

The Greenland Norite Belt (GNB) is a 75 km long by 15 km wide belt of crustally contaminated noritic intrusions with numerous historical, high-grade nickel sulphide showings (e.g. 9.85 m averaging 2.67% Ni and 0.60% Cu at the Imiak Hill showing). Mineralization within the belt has consistently high nickel tenor (6-8% Ni in 100% sulphide according to work done by Falconbridge in 2000).

Despite its obvious high prospectivity, the GNB has seen little drilling. A total of 119 holes totalling only 6,300 m, for an average hole length of less than 53 m, were drilled in the 1960′s and 70′s. More recent exploration programs stopped short of drilling due to a lack of EM anomalies to guide drilling. NAN’s strategy at Maniitsoq has been to use modern helicopter borne TEM systems to develop drill targets and it has proven successful. This technology was not available to previous explorers.

The VTEM Plus survey, combined with a SkyTEM survey flown by NAN last year, provides the company with high resolution TEM coverage over a total area of 860 square kilometers centred on the Greenland Norite Belt).

Data from the VTEM Plus survey is currently being processed and interpreted. All significant electromagnetic anomalies will be checked in the field and ranked. The highest priority targets will be tested during a drill program that is planned to commence in August.

The survey, which ran from June 20 to July 17 and comprised 3,532 line-km of surveying, was performed by Geotech Ltd. of Toronto, OntarioCondor Consulting Inc. of Lakewood, Colorado provided daily QA/QC analysis of the data.

http://media3.marketwire.com/docs/nan-0724-image1.pdf

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