HEADS UP ON MUNN LAKE
Munn lake has been a focus for exploration and location of a significant diamoniferous kimberlite body for a number of years.
The search is about ot pay off. I think the details and significance of SUF's last report were lost on the market.
The following is all from SUF's Web site and news release
"In 1997, an airborne magnetic and electromagnetic survey, till sampling and ground geophysical surveys were conducted in the vicinity of Margaret Lake and Munn Lake on the Back Lake Property (SUF 70%, Kalahari Resources 30%).
Diamond drilling followed, during which eleven narrow kimberlite dykes were intersected. In 1997, two areas on the shores of Munn Lake hosting glacially-transported "Yuryi" kimberlite float were discovered.Float material is believed to originate within two kilometres of the discovery area. Exploration will focus on locating its primary source. This will include the collection of till samples from the bottom of Munn and Margaret Lakes utilizing a sonic drill and processing the samples for the recovery of kimberlite heavy mineral indicators.
The initial focus of the program will be to locate the primary kimberlite pipe sources of:
The extensive "Yuryi" kimberlite ice-rafted float material that occurs within the shoreline area of Munn Lake, and
The two kimberlitic heavy mineral indicator trains that have been traced to the shoreline of Margaret Lake.
The "Yuryi" kimberlite float hosts spectacular pyrope garnet chemistry with over 40% of the pyropes occurring within the G-10 field, suggesting that the diamond potential of the primary kimberlite source is excellent. The "Yuryi" kimberlite has returned 226 diamonds, including 62 macrodiamonds from 581 kilograms of processed kimberlite (a macrodiamond has 1 dimension greater than 0.5mm). One 0.12 carat diamond was also recovered from the sample.
SouthernEra Resources Limited (SUF-TSE) is pleased to report on diamond exploration in the Northwest Territories.
At Munn Lake, the sonic drilling program has been completed and the probable source of the kimberlite boulder material, found previously on the shoreline of Munn Lake, will be diamond drilled in the next few days. Sonic drilling has also been completed on Margaret Lake and results are pending. Whilst the airborne geophysical survey at Yamba Lake is only 66% complete, 30 airborne targets indicative of kimberlite intrusion have been selected for follow-up ground geophysical surveys and drill testing.
Back Lake Diamond Project (SUF 70%)
The Back Lake diamond project is located 100 kilometres south of Lac de Gras within the southern kimberlite field that includes the Snap Lake kimberlite dykes and the Kennady Lake kimberlite pipes. These are currently undergoing bulk sample testing by Winspear Resources and Monopros Ltd., respectively. The Back Lake project is a joint venture between SouthernEra Resources Limited, Kennecott Canada Exploration Inc., Kalahari Resources Inc. and Island-Arc Resources Corp.
Munn Lake Kimberlite Target Area:
The results of the recently completed sonic drilling programme suggest that the kimberlite boulders found on the shoreline of Munn Lake are derived from an inferred north to south trending, steeply dipping, kimberlite body. This appears to be at least 105 metres in strike length. Two of the vertical sonic drill holes intersected kimberlite bedrock up to 1.4 metres in thickness. Both sonic holes bottomed in kimberlite after reaching their limit of bedrock penetration and hence the true thickness is unknown. The kimberlite boulders on the shore are up to twenty-five meters in diameter.
The presence of pyrope and other indicator minerals, plus a visual study of the kimberlite material suggest the two kimberlite intersections are similar to the kimberlite boulders found on shore. The chemistry analyses, to confirm this conclusion, are pending.
The inferred kimberlite body lies within a north-northwest trending lake bottom depression and the southernmost sonic drill hole #SDH 186, which intersected kimberlite, lies within 100 metres of shore and in 20 metres of water.
Munn Lake Sonic Drilling Summary:
231 sonic drill holes have been completed on Munn Lake
199 sonic core till samples have been collected for kimberlite indicator mineral and kimberlite fragment recovery
48 lake sediment clay samples have been submitted for geochemistry analyses
70% of the sonic core till samples have been picked for indicator minerals
in the lake bottom depression, kimberlite fragments occur in 22 sonic till samples
kimberlitic indicator minerals and kimberlite fragments were found in a few other samples outside of the lake bottom depression
SouthernEra will commence diamond drilling at Munn Lake on 2nd April to test the prospective source of the diamond bearing kimberlite boulder occurrence along the shoreline of Munn Lake."
My Comments
The material samples is both rich in diamonds and the diamonds are relatively course which would indicate that any significant tonnage defined by drilling will lead to an economic mining project.
The diamond drilling this week will define the approximate size and shape of the kimberlite body. Sample material from the drill core will provide further information on diamond counts and size distribution. Comparison to other pipes in the area will give a very good idea of economic potential.
Boulders 25 meters in diameter did not come from a thin dyke.
Mines and processing facilities will likely be constructed in the near future at nearby Snap Lake (Winspear property) and on the bordering MPV/DEBEERS property. Bulk samples from both properties are currently in progress.
Good luck |
