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Re: Sirius_Fan post# 119537

Tuesday, 12/28/2010 11:32:29 AM

Tuesday, December 28, 2010 11:32:29 AM

Post# of 233166
SKF,

Conglomerate is a sedimentary rock composed of large, rounded clasts, thus it is very porous and permeable. It is typically cemented together by precipitated calcite or silica. So the pore spaces are large. Aleration, in this case hematite, occurs during metamorphism, or in this case metasomatism, which basically describes hydrothermal fluids passing through the matrix (which is geo-talk for the cement) of the congomerate and replacing the original cement with hematite. I do not like to decribe it as Fe-ore, as that implies it is at a high enough grade to be profitable. We do not know this yet.

This is why is is also important to know the thickness of this conglomerate.

Another thing to consider is... did the hydrothermal fluids transport anything else of economic importance? And, if so, where would this "deposit" be located in relation to hole #1? Is it related to the REEs in Hole #2? This is what I find interesting...