Studied by 3 people
Arkose
Banded sandstone
Shale
Breccia
Sandstone
Conglomerate
Siltstone
Encrinal limestone
Shelly limestone
Travertine
Chert
Rock salt
Chalk
Lignite coal
Bituminous coal
Arkose
Sand
Moderate
Angular
Alluvial fan
Banded sandstone
Sand
Well
Rounded
River channels, flood plains, river deltas, desert dunes, lakes, beaches, shallow marines
Shale
Clay
Well
Rounded
River channels, flood plains, river deltas, lakes, beaches, lagoons, shallow marines, deep marines
Breccia
Pebble
Poor
Angular
Alluvial fan
Sandstone
Sand
Well
Rounded
Sandstone
River channel, flood plains, river deltas, desert dunes, lakes, beaches, shallow marines
Conglomerate
Pebble
Poor
Angular
Beaches, River channels
Siltstone
Silt
Well
Rounded
River channels, flood plains, river deltas, lakes, beaches, shallow marines
Encrinal limestone
Crinoids (marine fossils)
Organic
Lagoons, shallow marines, deep marines, reefs
Shelly limestone
Shells
Organic
Lagoon, shallow marines, deep marines
Travertine
Microcrystalline calcite
Inorganic
Hot springs
Chert
Microcrystalline quartz
Inorganic
Deep marines
Rock salt
Halite
Inorganic
Playas
Chalk
Coccoliths (calcium plates)
Organic
Deep marines
Lignite coal
Plants
Organic
Swamps
Bituminous coal
Plants
Organic
Swamps
River channels
Conglomerates
Sandstone
Siltstone
Shale
Flood plain
Sandstone
siltstone
shale
River delta
Sandstone
Siltstone
Shale
Alluvial fan
Breccia
Arkose
Desert dunes
Sandstone
Playa
Rock salt
Hot spring
Travertine
Swamps
Coal
Lake
Sandstone
Siltstone
Shale
Lake
Sandstone
Siltstone
Shale
Beach
Conglomerate
Sandstone
Siltstone
Shale
Lagoon
Shale
Limestone
Shallow marine
Sandstone
Siltstone
Shale
Limestone
Reef
Limestone
Deep marine
Shale
Limestone
Chalk
Chert
