Library entry walls and hallway contrast with
Location: Travis and Williamson
Age of Specimen: Lower Cretaceous,
estimated 100 million years B.C.E.1
fossil-filled limestone graces the entrance walls and hall of the Youngblood
Library, providing a cream white contrast to the dark-brown reflecting
granite floors. This fossil-bearing limestone is so attractive, it is even
used as a frame for the flower-like "Sea Lily" Crinoid fossil in the
entrance area. The visual effect is extended into the library where this
decorative "Cedar Park Limestone" is used as the base under the granite
checkout counter. This distinctive shelly limestone is from the
Fredericksburg Group of the Walnut Formation which extends into the Edwards
Limestone north of Austin, Texas, and contains pelecypod (clams), Exogyra
texanand (oysters), miscellaneous small marine fossils, and fossil shards.
Numerous cavities provide an additional rich texture.
This shelly layer limestone is trade-marketed as "Cordova Shell". It has
been used on both exterior and interior walls of government and private
buildings throughout Texas and across the United States.
Estimated by traditional Uniformitarian geological concepts.
See: Contrasting floors
of dark-brown reflecting granite
GIANT SELENITE CRYSTALS on Page 13
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