The "'Owyhee Uplands and Canyons ecoregion "'is a sagebrush steppe containing deep river canyons, barren lava fields, badlands, and tuffaceous outcrops that are riddled by caves.
22.
The Minfordd Formation is a sandstone dominated epiclastic and tuffaceous lithology which has a broad upward fining sequence with the presence of thick welded and non-welded ash-flow tuffs that elucidates an amount of volcanism.
23.
The middle portion of Barangay Mabuhay ranges between 8-18 % slope forming the rolling tuffaceous plateau and the last is ranging of 15 % to more than 40 %, They are situated at a very high elevation.
24.
It is one of six buildings in Enterprise that was built of " Bowlby stone ", a local tuffaceous rock; the Wallowa County Courthouse and the Record-Chieftain's plant building are the only other two surviving of the six.
25.
However, when " a'a " enters the ocean it forms a littoral cone, a small cone-shaped accumulation of tuffaceous debris formed when the blocky " a'a " lava enters the water and explodes from built-up steam.
26.
The unnamed lower member is a hard platy shale alternating with beds of tuffaceous mudstones and sandstones, the Kamirawan member is a tuffaceous sandstone with pumice, the Lower Hard Shale is a very siliceous hard shale with tuffaceous sandstones and mudstones, and the Middle Hard Shales and the Upper tuffaceous siltstone are similar.
27.
The unnamed lower member is a hard platy shale alternating with beds of tuffaceous mudstones and sandstones, the Kamirawan member is a tuffaceous sandstone with pumice, the Lower Hard Shale is a very siliceous hard shale with tuffaceous sandstones and mudstones, and the Middle Hard Shales and the Upper tuffaceous siltstone are similar.
28.
The unnamed lower member is a hard platy shale alternating with beds of tuffaceous mudstones and sandstones, the Kamirawan member is a tuffaceous sandstone with pumice, the Lower Hard Shale is a very siliceous hard shale with tuffaceous sandstones and mudstones, and the Middle Hard Shales and the Upper tuffaceous siltstone are similar.
29.
The unnamed lower member is a hard platy shale alternating with beds of tuffaceous mudstones and sandstones, the Kamirawan member is a tuffaceous sandstone with pumice, the Lower Hard Shale is a very siliceous hard shale with tuffaceous sandstones and mudstones, and the Middle Hard Shales and the Upper tuffaceous siltstone are similar.
30.
This specimen was not found in situ, but in a loose concretion, and could potentially be stratigraphically higher than the Middle Hard Shale, but Barnes et al . presume that the animal was not transported far from the location where it died . " A . polydentatus " was also discovered in the Morawan Formation of Japan, but from the Upper Tuffaceous Siltstone Member, which also represents a basinal depositional environment.
