Outcrop - Wikipedia
On Ordnance Survey maps in Great Britain, cliffs are distinguished from outcrops: cliffs have a continuous line along the top edge with lines protruding down; outcrops have a continuous line around each area of bare rock.
Rock Outcrops - U.S. National Park Service
2024年3月4日 · Rock outcrops are defined as visible exposures of bedrock or other geologic formations at the surface of the Earth. Rock outcrops take many different forms within the Park, ranging from the massive granite boulders of Old Rag Mountain, to the sheer cliffs of Little Stony Man, and the jumbled boulder fields of Blackrock.
List of rock formations - Wikipedia
A rock formation is an isolated, scenic, or spectacular surface rock outcrop. Rock formations are usually the result of weathering and erosion sculpting the existing rock. The term rock formation can also refer to specific sedimentary strata or other rock …
5.4: Sedimentary Structures - Geosciences LibreTexts
Geopetal structures , also called up-direction indicators, are used to identify which way was up when the sedimentary rock layers were originally formed. This is especially important in places where the rock layers have been deformed, tilted, or overturned.
Tor (rock formation) - Wikipedia
A tor, which is also known by geomorphologists as either a castle koppie or kopje, is a large, free-standing rock outcrop that rises abruptly from the surrounding smooth and gentle slopes of a rounded hill summit or ridge crest.
Rocky outcrops: A hard road in the conservation of critical …
2017年7月1日 · Rock-cut architecture dates to around the 3rd century BC and includes spectacular places such as Bhaja and Ajanta Caves in India, the Al Khazneh temple in Jordan, and the rock-hewn church at Lalibela, Ethiopia.
Palimpsest outcrops – Historical Geology
As the glacier flowed over the rock, bits of sediment entrained in the ice gouged into the rock, producing the striations. These striations are not a “deep” part of the rock, but merely a carving of the surface of the outcrop.
Linking Time and Space in Geology: The Sedimentary Processes of ...
2017年12月4日 · The relationship of rock layers vertically and laterally is indicative of large-scale changes in the environment. An outcrop consisting of several horizontal sedimentary rock layers represent a vertical time-series of geologic events.
Rock Outcrops on Mars and Earth - NASA
2012年9月27日 · This set of images compares the Link outcrop of rocks on Mars (left) with similar rocks seen on Earth (right). The image of Link, obtained by NASA’s Curiosity rover, shows rounded gravel fragments, or clasts, up to a couple inches (few …
Outcrop - Outcrops, Rocks, Rock, and Exposed - JRank Articles
Outcrop When weathering and erosion expose part of a rock layer or formation, an outcrop appears. An outcrop is the exposed rock, so named because the exposed rock "crops out."