Browse Items (1651 total)

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Kingdom: Animalia Phylum: Brachiopoda Class: Order: Family: Genus: Species:

Kingdom: Animalia Phylum: Brachiopoda Class: Order: Family: Genus: Species:

Part of the The Granite Gorge Metamorphic Suite, this is usually considered a metavolcanic, and its mineralogy is dominated by quartz and mica.

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

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Green clay lithology of the Bright Angel Shale.

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

Red siltstone lithology of the Bright Angel Shale.

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

A silty-shale where the clasts are dominated by quartz. Sample collected from an area typified by interbedded limestones and shale.

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

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entrenched meander

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all are in very bad condition

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entrenched meander

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all are in very bad condition

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Contains large augite crystals