Vancouver B.C.: TNR Gold Corp. (“TNR” or the “Company”) and wholly-owned International Lithium Corp. (“ILC”) are pleased to announce the results of the 2009 Fall field program demonstrating widespread and strong rare metal (lithium, tantalum, rubidium, and cesium) mineralization on its 100% owned Mavis Lake property in northwestern Ontario.
Key Point Summary:
- Up to 2.11 wt% Li2O from grab and 1.39 wt% Li2O over 4.7 metres in channel samples reported;
- 40% of 244 samples exceed the maximum detection limit for Ta2O5 (>122 ppm);
- Several samples exceed upper detection limits for Rb2O (>1.09 wt%) and Cs2O (>530 ppm);
- Sampling extends lithium litho-geochemical anomaly (>50 ppm Li) by 1.1kms to 4.5kms in length.
2009 Follow-Up Pegmatite Sampling Program
An initial reconnaissance prospecting and litho-geochemical sampling program was conducted by TNR in the summer of 2009 and revealed strong Rare Metals mineralization on the Mavis Lake Property. Samples collected from Pegmatite No. 18 returned up to 3.61 Wt% Li2O from a grab sample, and a composite of channel samples returned assays with 1.24 Wt% Li2O over 5.3 metres (News Release – October 5, 2009).
A follow-up work program was initiated in the Fall of 2009 to further evaluate the lithium and rare metal potential of the property and consisted of a litho-geochemical, mapping and sampling survey. A total of 244 grab and channel samples were collected from the 9 previously known occurrences (Pegmatites No. 11 — No. 19) and from one new occurrence (the RVL pegmatite). The most significant grab assay of 2.11 Wt% Li2O came from the Pegmatite 18, and a composite of channel samples at Pegmatite No. 11 assayed 1.4 Wt% Li2O over 4.7 metres. Some of the most significant lithium, tantalum, cesium and rubidium assays, as oxides, are shown in the table below.
Table 1: Highlighted Grab Sample Results
|Pegmatite Dyke||Li2O (Wt%)||Ta2O5 (ppm)||Cs2O (ppm)||Rb2O (ppm)|
*Samples results with above upper detection limits.
Table 2: Highlighted Channel Sample Results (as weighted averages)
|Pegmatite Dyke||Width (m)||Li2O (Wt%)||Ta2O5 (ppm)||Cs2O (ppm)||Rb2O (ppm)|
**Sample contains a 0.7 m interval with >122.1 ppm Ta2O5. The weighted average was calculated with an assumed value of 122.1 ppm Ta2O5.
In addition to strong Li2O results, highly anomalous tantalum and cesium values are notably widespread on the property and indicate a high potential for zoned, complex-type pegmatites enriched in tantalum and cesium. Complex-type pegmatites are excellent targets for economic deposits of lithium, tantalum, cesium and rubidium such as the Tanco pegmatite in southeast Manitoba. In total, 97 samples exceeded the upper detection limit for tantalum (40% of the 244 samples submitted) and are currently being re-analyzed.
A noted example of a complex-type pegmatite on the Mavis Lake property is the No. 19 pegmatite, which consists of highly evolved complex-type mineralization and associated sodic aplite veins. A sample of this sodic aplite material registered above the upper detection limits for Rubium (>1.09 Wt% Rb2O), cesium (>530 ppm Cs2O) and tantalum (>122.1 ppm Ta2O5) with anomalous concentrations of lithium (0.15 Wt% Li2O), beryllium (341 ppm Be), tin (208 ppm Sn), and gallium (127 ppm Ga).
Pegmatite No. 17, also a complex-type, was mapped and extended 187 metres to a documented strike length of 220 metres. Grab samples indicated a range of Li2O values up to 1.86 wt%.
Channel sampling on the No. 11 pegmatite returned values between 0.9 and 1.74 wt% Li2O over 4.7 metres and 0.24 to 0.98 wt% Li2O over 2 metres. Tantalum, cesium, and rubidium concentrations from these samples were also highly anomalous, indicating the possibility of a complex-type pegmatite.
Figure 1: Lithium Lithogeochemical Anomaly and Pegmatite Location Map — Mavis Lake Project, Ont.
2009 Lithogeochemical Survey
The 2009 lithogeochemical survey was located north and east of the historical grids of Tanco Exploration and Selco Inc. The 2009 TNR cut grid was oriented at 315 degrees azimuth with lines running approximately perpendicular to foliation. Samples were located at 25 metres or as close as the abundance of outcrop would allow. A total of 334 samples were collected over 11.25 kilometres of line.
Samples returned a range of values from 1.3 to 9780 ppm Li, with 41% (136 samples) returning values greater than 50 ppm Li. Lithium values greater than 50 ppm can be considered strongly anomalous as the average regional background of lithium in mafic metavolcanic rocks is 16 ppm. The 2009 Fall sampling program extended the large lithium dispersion anomaly approximately 1.1 kilometres northeast beyond the 3.4 kilometre long historical anomaly. The lithium anomaly remains open to the east.
The lithium lithogeochemical anomaly has historically shown a strong correlation with the majority of the known pegmatites in the area, thereby indicating a significant potential for the discovery of additional pegmatites on the property.
Mavis Lake Property
The Mavis Lake property is located 15 km Northeast of Dryden, Ontario; easily accessed via the Trans-Canada Highway and by a series of logging roads. The claim block has a total area of 2,544 ha and covers several known Rare Metal pegmatites.
Regional pegmatite mineralization is directly associated with the strongly peraluminous Ghost Lake Pluton and related granite pegmatite dykes. Rare Metal mineralization in the Mavis Lake area occurs in zoned pegmatites hosted by mafic metavolcanic rocks. Rare Metal mineralization has been noted to occur in four zones: as the endogenous beryl zone along the contact of the Ghost Lake Pluton and away from the pluton into the mafic metavolcanics as the beryl-columbite, spodumene-beryl-tantalite and albite-type zones.
Pegmatites on the Mavis Lake property occur in a swarm of flat-lying and near vertical dykes and bear a noted similarity to the Tanco deposit in southeastern Manitoba. The known pegmatite dykes on the Mavis Lake property consist of albite-spodumene-type with beryl and tantalite, albite-type, and complex-type with lithium tourmaline, tantalite and wodginite. The adjacent Fairservice property is dominated by east trending albite-spodumene-type pegmatites, considered to be part of the same dyke swarm as the Mavis Lake pegmatites, and has a historical (non NI 43-101 compliant) resource of 500,000 tons at 1.0% Li2O.
Ike Osmani, P.Geo, is the company’s qualified person on the project as required under NI 43-101 and has reviewed the technical information contained in this press release.
To help understand the technical aspects of Lithium and other Rare Metals please visit TNR’s website at www.tnrgoldcorp.com.
ABOUT TNR GOLD / INTERNATIONAL LITHIUM CORP
TNR is a diversified metals exploration company focused on exploring existing properties and identifying new prospective projects globally. TNR has a total portfolio of 33 properties, of which 16 will be included in the proposed spin-off of International Lithium Corp.
It is anticipated that TNR shareholders of record will receive up to one share and one full tradable warrant of International Lithium Corp. for every 4 shares of TNR held as of the yet determined record date. This will result in TNR shareholders owning shares in both TNR and International Lithium. For further details of the spin-off please refer to TNR’s April 27, 2009 news release or visit http://www.internationallithium.com
The recent acquisition of lithium, rare metals and rare-earth elements projects in Argentina, Canada, USA and Ireland confirms the company’s commitment to generating projects , diversifying its markets, and building shareholder value.
On behalf of the board,
The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this news release. Statements in this press release other than purely historical information, historical estimates should not be relied upon, including statements relating to the Company’s future plans and objectives or expected results, are forward-looking statements. News release contains certain “Forward-Looking Statements” within the meaning of Section 21E of the United States Securities Exchange Act of 1934, as amended. Forward-looking statements are based on numerous assumptions and are subject to all of the risks and uncertainties inherent in the Company’s business, including risks inherent in resource exploration and development. As a result, actual results may vary materially from those described in the forward-looking statements.