Tuesday, November 27, 2007

Geology Post

After all that excitement of the previous two posts I definitely need to get back to roots. At least for the moment.

Yesterday, I was looking back through some of the pictures and images I got while putting my geology thesis together. I got some really cool pictures and for any of the geologist teachers that may swing through here, feel free to use the pictures for teaching aids.

This is a sketch I made from a thin section (cut parallel to lineation and perpendicular to foliation, is that right? i cant remember) about 9 years ago (*geeze* it dosen't seem that long).
Red/pink colors are garnet.
The green is a chlorite reaction rim contacting the dominantly muscovite matrix.

I believed and still do that there are two generations of garnet growth. The older showing a poikiloblastic internal structure. The younger did not.

On one garnet I highlighted asymmetric quartz tails.
The beige I never actually identify. Though it could have been andalusite. It was very homogenous...almost microscopic oatmeal structure.

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