Browse Items (1651 total)

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OCR PDF of supplemental information for the St. Francois Mountains collection.

Spotted Spaulding Granite, member of the Spaulding Quartz Diorite. Part of an irregular sill, not the major facies. Spotted appearance, extends through more mafic facies. Thin section contains quartz, alkali feldspar, plagioclase, mica, and…

Kingdom: Plantae Phylum: Equisetophyta Class: Equisetopsida Order: Family: Genus: Species:

Rough with oxidized section

Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Spatangoida Family: Spatangidae Genus: Species:

1:62500

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cross section on the back as well as information about rock units

1 inch = 10 miles
legend included

cross section on the back as well as information about rock units

1 inch = 10 miles
legend included

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1:31680

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