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Tafoni : ウィキペディア英語版
Tafoni

Tafoni (singular: tafone) are small cave-like features found in granular rock such as sandstone, granite, and sandy-limestone with rounded entrances and smooth concave walls, often connected, adjacent, and/or networked. They often occur in groups that can riddle a hillside, cliff, or other rock formation. They can be found in all climate types, but are most abundant in intertidal areas and semi-arid and arid deserts. Currently favored explanations controlling their formation include salt weathering, differential cementation, structural variation in permeability, wetting-drying, and freezing-thawing cycles, variability in lithology, case hardening and core softening, and/or micro-climate changes and variation (i.e. moisture availability). Tafoni have also been called fretting, stonelace, stone lattice, honeycomb weathering, and alveolar weathering.
Tafoni features have been found across the Earth, with dramatic forms found in the Jodhpur-Ajmer section of India's Thar Desert, Petra, Jordan, Coastal California and Australia, and even in the Arctic regions, and Antarctica (Paradise 2011).
The etymology of the word "tafoni" is unclear. Tafoni may come from the Greek word ''taphos'', "tomb", or it may stem from a Corsican or Sicilian word for "holes", ''taffoni'', or from ''tafonare'' meaning "to perforate". The earliest known publication of the term “tafoni” was in 1882.〔(Etymology ), at Tafoni.com〕 Conventionally, the word 'tafoni' is the plural form of 'tafone'.

File:Tafoni-davis_hg.jpg|
Tafoni from Antarctica
Image:Tafoni-san-francisco.jpg |
Tafoni formation in the mountains near San Francisco.
File:Bundsandstein Waben.jpg |
Tafoni in sandstone, Südpfalz, Rheinland-Pfalz, Germany
File:Tafoni at Elgol, Isle of Skye.jpg|
Tafoni at Elgol, Isle of Skye
File:HoneycombWeatheringCambrianIsrael.jpg|
Tafoni in a Cambrian sandstone, Timna Valley, Negev Desert, Israel.
File:Korea-Mokpo Gatbawi 11-01716.JPG|Tafoni formations, named Gatbawi (Hat Rock), found on the shore of Mokpo's east harbor, near the mouth of the Yeongsan River, South Jeolla Province, South Korea.

==See also==

*Honeycomb weathering, a similar weathering feature

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Tafoni」の詳細全文を読む



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