Rock shelter

The rock shelter for which Indian Cave State Park is named.

A rock shelter (also known as a rockhouse, crepuscular cave, or abri) is a shallow cave-like opening at the base of a bluff or cliff.

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 (eolian 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.

Rock shelter formation types
By frost weathering
By cutting a karst gallery
By river erosion

Human habitat

Shepherds' rock shelter in Lahaul, India

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.

Sandstone can be used as shingles for roof tops when possible.

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]

Rock shelter at
Strouds Run State Park

References

Prehistoric technology

Tools

Farming

Food processing

Hunting

Arrow Boomerang throwing stick Bow and arrow history Nets Spear Spear-thrower baton harpoon woomera Schöningen Spears

Projectile points	Arrowhead Bare Island Cascade Clovis Cresswell Cumberland Eden Folsom Lamoka Manis Site Plano Transverse arrowhead

Toolmaking

Other tools

Architecture

Ceremonial	Göbekli Tepe Kiva Standing stones megalith row Stonehenge Pyramid

Dwellings	Neolithic architecture British megalith architecture Nordic megalith architecture Burdei Cave Cliff dwelling Dugout Hut Quiggly hole Jacal Longhouse Mud brick Mehrgarh Neolithic long house Pit-house Pueblitos Pueblo Rock shelter Blombos Cave Abri de la Madeleine Sibudu Cave Stone roof Roundhouse Stilt house Alp pile dwellings Wattle and daub

Water management	Check dam Cistern Flush toilet Reservoir Water well

Other architecture	Archaeological features Broch Burnt mound fulacht fiadh Causewayed enclosure Tor enclosure Circular enclosure Goseck Cursus Henge Thornborough Oldest buildings Megalithic architectural elements Midden Timber circle Timber trackway Sweet Track

Arts and culture

Material goods	Baskets Beadwork Beds Chalcolithic Clothing/textiles timeline Cosmetics Glue Hides shoes Ötzi Jewelry amber use Mirrors Pottery Cardium Grooved ware Linear Jōmon Unstan ware Sewing needle Weaving Wine Winery wine press

Prehistoric art	Art of the Upper Paleolithic Art of the Middle Paleolithic Blombos Cave List of Stone Age art Bird stone Bradshaw rock paintings Cairn Carved Stone Balls Cave paintings painting pigment Cup and ring mark Geoglyph Golden hats Guardian stones Megalithic art Petroform Petroglyph Petrosomatoglyph Pictogram Rock art Stone carving Sculpture Statue menhir Stone circle list British Isles and Brittany Venus figurines

Burial	Burial mounds Bowl barrow Round barrow Mound Builders culture U.S. sites Chamber tomb Severn-Cotswold Cist Dartmoor kistvaens Clava cairn Court tomb Cremation Dolmen Great dolmen Funeral pyre Gallery grave transepted wedge-shaped Grave goods Jar burial Long barrow unchambered Grønsalen Megalithic tomb Mummy Passage grave Rectangular dolmen Ring cairn Simple dolmen Stone box grave Tor cairn Tumulus Unchambered long cairn

Other cultural	Astronomy sites lunar calendar Behavioral modernity Origin of language Prehistoric medicine trepanning Evolutionary musicology music archaeology Prehistoric music Alligator drum flutes Divje Babe flute gudi Prehistoric numerals Origin of religion Paleolithic religion Prehistoric religion Spiritual drug use Prehistoric warfare Symbols symbolism

This article is issued from Wikipedia - version of the Saturday, April 02, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.

Rock shelter

Formation

Human habitat

Unique vegetation

See also

References