Browse Items (1651 total)

http://dl.dropbox.com/u/66399955/GC-4.JPG
Sandstone shows metamorphic overprinting with triple junctions between quartz grains common.

Both thin section images were taken at a 400x magnification.

Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa Order: Syringoporida Family: Syringoporidae Genus: Species:

Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa Order: Syringoporida Family: Syringoporidae Genus: Species:

banded, pink to gray color, sharp contact, some hydrothermal alteration has ocurred

Similiar in composition, texture, and shape to the Concord, North Carolina complex

Coarse grained, comes from dike-like body in northern part of the quarry

coarse grained, with large tabular slabs of float

coarse grained

http://dl.dropbox.com/u/66399955/GC-15.JPG
Classic red-bed sample from the Supai Formation with silt-sized grains of mostly quartz. Some grains are semi-rounded.

Both thin section images were taken at a 400x magnification.

http://dl.dropbox.com/u/66399955/GC-14.JPG
A classic red-bed sample typical of the sandstones from the Supai Formation.

Both thin section images were taken at a 400x magnification.

1:62500

1:62500
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