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ROCKS ALL DAY, EVERY DAY ROCKS ALL DAY, EVERY DAY

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ROCKS ALL DAY, EVERY DAYROCKS ALL DAY, EVERY DAY

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Figure 1. Rock Saw (side view)

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Figure 2. Me using the rock saw taking necessary safety precautions

Figure 3. Rock saw front view

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Figure 4a. Hillquist thin section grinding Machine using the right side to frost the slide

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Figure 5. Epoxy station

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Figure 4b.Using this side to cut the billet

Figure 4a. Using this side to sand down the thin section

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Coarser Finer

Figure 6. Hand Sanding Station

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Plagioclase

Hornblende

Quartz

Alkali-feldsparFigure 8. My rock in thin section focused on a plagioclase crystal

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My Rock

Figure 9. QAP diagram

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Oscillatory Zoning Oscillatory Zoning in plagioclasein plagioclase Figure 8.

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Figure 10. Albite- Anorthite Solid Solution Phase Diagram with arrows showing direction of cooling

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Figure 11. My rock in hand sample

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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

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Special Thanks to:

•Kit Price for letting me use her camera to take pictures

•Doctor Pollock for letting me use her microscope camera