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Post by surfice on Jul 20, 2009 19:18:29 GMT -5
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Post by traveler on Jul 21, 2009 5:56:42 GMT -5
First, I'd guess that you found these in an area with volcanic activity.
1 and 2- Olivine with a quartz seam (igneous rock)
3,4,5- Hard to tell from the pictures. I'd guess sedimantary material partially morphed.
6- ?
7-Breccia (A coarse sedimentary or igneous rock composed of angular fragments (clasts) of older rocks that are cemented together in a fine matrix. Sources of breccias include scree slopes (taluses), faulting, volcanic eruptions, and meteorite impacts)
8- ?
9- Same as #1
10- ?
11?
If you do some some research on Petrology and Lithology you can find out more on these types of rocks.
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