SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Gold/Mining/Energy : Houston Lake Mining [HLM-ASE]

 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Paul Thomas who wrote (151)3/30/1999 8:42:00 PM
From: DRT  Read Replies (1) of 364
 
No question they differ:

As noted from the 1999 OGS Open File Report, #169: "Rare-Metal
Mineralization Associated with the Berens River-Sachigo
Subprovincial Boundary, Northwestern Ontario: Discovery of a
New Zone of Complex-Type, Petalite Subtype Pegmatite and
Implications for Future Exploration"
by F.W. Breaks, A.G Tindle, and S.R. Smith.

Mineral Chemistry
- "Potassium-feldspar chemistry has been well established as
a useful tool in the economic valuation of pegmatites. In
particular, the Rubidium (Rb) and cesium (Ce) contents and the
K/Rb ratio in blocky potassium-feldspar are important in
discriminating between rare-metal-enriched pegmatites and those
that are barren of such metals."
- 'Concentrations of rubidium (mean 1.11%) and cesium (mean 0.83%)
are highly anomalous and indicative of a complex type pegmatite
system. This assessment is supported by the K/Rb vs. Ce content, a
plot useful in assessing economic potential, where most analyses
(samples) from the Pakeagama Lake area plot witin the Bernic Lake
pegmatite group ... which includes the Tanco Pegmatite'.

From Table 24.5 Pegmatite Comparisons of Ce, Rb and K/Rb:

# Ce (ppm) Rb (ppm) K/Rb

Pakeagama Lake (HLM) 19 827 11100 9.5
Bernic Lake (TANCO) 57 1262 14800 9.5
Big Whopper (AVL) 5 249 12592 8.5

_____________

DRT
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext