Ash Hollow Formation
Geology
Group: Ogallala
Members: unnamed (36), ? Cap Rock (1), Cap Rock (44), Merritt Dam (52)
Lithologies: not reported (21), "siliciclastic" (2), claystone (1), sandstone (4), ash (1)
Paleoenvironments: terrestrial indet. (126), fluvial indet. (1), coarse channel fill (1), fine channel fill (1), "channel" (2), lacustrine - small (1), pond (1)
Collections