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The large Bloody Bluff Fault (named for Bloody Bluff in Minute Man National Historical Park in Lexington) is a west-dipping brittle deformation zone that formed between the Avalon terrane and Nashoba terrane, likely in the late Paleozoic.
Gillem Bluff, a fault scarp, was created as the region stretched and a block of earth dropped down along this fault (see Basin and Range Province). The tuff layer on top of Gillem Bluff is 2,000,000 years old, indicating the rock layers beneath are even older.
The Bluff Formation consists of massive wind-deposited sandstone beds at its type location at Bluff, Utah. These cap the cliffs north of town and are 100–350 feet (30–107 m) thick. [ 1 ] Further to the southeast, the sandstone beds lack high-angle cross beds , being dominated instead by horizontal bed forms, and are overlain by mixed ...
Jun. 28—FRANCONIA NOTCH Artists' Bluff, whose sublime views once enticed 19th-century painters, today is one of the most Instagrammed spots in the White Mountains. A magnet from late May through ...
Most of the bluff is displaced approximately 40 metres (131 ft) upwards relative to the adjoining bedrock along the Red Wing Fault, which transects the bluff near its south face. It is composed of early Paleozoic rocks, including Ordovician dolomite and sandstone atop Cambrian shale , siltstone and greensand at its base, deposited by early ...
Three units of the Ice Age National Scientific Reserve are located within or adjacent to the Driftless Area: Devil's Lake State Park, Mill Bluff State Park, and Cross Plains State Park. In addition, the Ice Age Trail follows the Terminal moraine of the maximum glacial extent from the last ice age and enters the Driftless Area in several locations.
Firth – Scottish word used for various coastal inlets and straits; Fjard – Glacially formed, broad, shallow inlet; Fjord – Long, narrow inlet with steep sides or cliffs, created by glacial activity; Geo – Inlet, a gully or a narrow and deep cleft in the face of a cliff; Gulf – Large inlet from the ocean into the landmass List of gulfs
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