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Redox front along fracture
Buda (Kbu) Val Verde County
Liesgang Rings
Boquillas (Kbse) Val Verde County
Antlers Sandstone
Antlers (None) Crockett County
Liesegang rings
Austin Chalk (Kau) Bexar County
Dolomite
Fort Terrett (Kft) Kerr County
