Species: Volcanic Ash/Nontronite
County: Travis
Site: None
Group: Austin
Formation: Austin Chalk
Member: Pyroclastic
Period: Cretaceous
Epoch: Upper K
Stage: Santonian Coniacian
Class: IGN-Extrusive
Order: None
Superfamily: None
Family: None
Genus: Rock
State: Texas
Credit: tmc
ID: 243