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ROCKS ALL DAY, EVERY DAYROCKS ALL DAY, EVERY DAY
Figure 1. Rock Saw (side view)
Figure 2. Me using the rock saw taking necessary safety precautions
Figure 3. Rock saw front view
Figure 4a. Hillquist thin section grinding Machine using the right side to frost the slide
Figure 5. Epoxy station
Figure 4b.Using this side to cut the billet
Figure 4a. Using this side to sand down the thin section
Coarser Finer
Figure 6. Hand Sanding Station
Plagioclase
Hornblende
Quartz
Alkali-feldsparFigure 8. My rock in thin section focused on a plagioclase crystal
QuickTime and aª decompressor
are needed to see this picture.
My Rock
Figure 9. QAP diagram
Oscillatory Zoning Oscillatory Zoning in plagioclasein plagioclase Figure 8.
QuickTime and aª decompressor
are needed to see this picture.
Figure 10. Albite- Anorthite Solid Solution Phase Diagram with arrows showing direction of cooling
Figure 11. My rock in hand sample
References:
1) Winter, J.D., 2010, Principles of Igneous and Metamorphic Petrology: Upsaddle River,
New Jersey, Pearson Prentice Hall, 38 p.
2) Stamatelopoulou-Seymour, K., Vlassopoulos, D., Pearce, T.H., and Rice, C., 1990,
The record of magma chamber processes in plagioclase phenocrysts at Thera Volcano,
Aegean Volcanic Arc, Greece: Controbutions to Mineralogy and Petrology, v. 104, p. 73-84.
3) Bédard, L.P., 1996, Archean High-Mg Quartz-Monzodiorite Suite: A Re-evaluation of
the Parental Magma and Differentiation: The Journal of Geology, v. 104, p. 713-728.
4) Quartz, 2005, Minerals Zone [WWW Document]. URL: http://www.mineralszone.com
/minerals/quartz.html. Accessed April 19th, 2011.
5) Figure 9: http://img.geocaching.com/cache/e8ccef23-2402-4613-a959-e42181
caee5c.jpg
6) Figure 10: http://www.tulane.edu/~sanelson/images/plagphasediagram.gif
Special Thanks to:
•Kit Price for letting me use her camera to take pictures
•Doctor Pollock for letting me use her microscope camera