<p> The Buffalo Mine, located in Heyson Township, Red
Lake, consists of quartz-tourmaline veins in a grandiorite.
An alteration halo, consisting of andesine feldspar, quartz,
calcite, with minor tourmaline, zircon, and opaques, is seen
surrounding the veins. Opaque minerals consists of pyrite and
hematite. Possible Na - overgrowths of the Plagioclase are
seen , as well as complete destruction of the mafic minerals. </p> <p> Geochemistry shows that the wall-rock alteration
involves the breakdown of Si, Al, Fe, Mg, Na, and K . Si and
Al remain fairly constant, while Na and Ca increase and Fe,
Mg, and K decrease in abundance. There has been a sufficient
input of CO2 to precipitate calcite, as well as Enough sulfur
to form pyrite. </p> <p> The initial hydrothermal solutions were high temperature
NaCl solutions, enriched in boron and containing some CO2 .
The fluids were likely oxidizing and had a neutral pH. </p> / Thesis / Bachelor of Science (BSc)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/19544 |
| Date | 04 1900 |
| Creators | Gignac, Wayne |
| Contributors | Crocket, James, Geology |
| Source Sets | McMaster University |
| Language | English |
| Detected Language | English |
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