To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

The rock shelter for which Indian Cave State Park is named
Rock shelter in the Little Carpathians

A rock shelter (also rockhouse, crepuscular cave, bluff shelter, or abri) is a shallow cave-like opening at the base of a bluff or cliff. In contrast to solutional caves (karst), which are often many miles long or wide, rock shelters are almost always modest in size and extent.

YouTube Encyclopedic

  • 1/5
    Views:
    857
    3 258
    6 911
    2 809
    516
  • In Search of the Harvey Rock Shelter and Medicine Petroglyph near Stillwater, Jan 20, 2019
  • rock shelters
  • Timelapse of South African rock shelter excavation
  • Land of the Lenape - Split Rock Shelter
  • MINE SITE ROCK SHELTER

Transcription

Formation

Rock shelters form because a rock stratum such as sandstone that is resistant to erosion and weathering has formed a cliff or bluff, but a softer stratum, more subject to erosion and weathering, lies just below the resistant stratum, and thus undercuts the cliff.

In arid areas, wind erosion (Aeolian erosion) can be an important factor in rockhouse formation. In most humid areas, the most important factor in rockhouse formation is frost spalling, where the softer, more porous rock underneath is pushed off, tiny pieces at a time, by frost expansion from water frozen in the pores. Erosion from moving water is seldom a significant factor.

Many rock shelters are found under waterfalls.

Human habitat

Shepherds' rock shelter in Lahaul, India
Bawa Yawan rockshelter, sieving of excavated deposits at a Paleolithic site in Iranian Zagros, April 2017
Rock shelter at
Strouds Run State Park

Rock shelters are often important archaeologically. Because rock shelters form natural shelters from the weather, prehistoric humans often used them as living-places, and left behind debris, tools, and other artifacts. In mountainous areas the shelters can also be important for mountaineers.

Transhumant nomads, people who move with their livestock - often from lower permanent winter residences in the valleys to higher summer pastures - frequently build semi-permanent camps, often of rocks.

In western Connecticut and eastern New York, many rock shelters are known by the colloquialism "leatherman caves",[1] as they were inhabited by the Leatherman over three decades in the late 19th century.

Unique vegetation

The Cumberland stitchwort (Minuartia cumberlandensis) is an endangered species of plant which is found only in rock shelters in Kentucky and Tennessee.[2]

See also

References

Further reading

External links

This page was last edited on 19 February 2024, at 03:40
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.