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・ Cliff Wright (fighter)
・ Cliff Wright (footballer)
・ Cliff Yiskis
・ Cliff Young
・ Cliff Young (athlete)
・ Cliff Young (baseball)
・ Cliff Young Australian 6-day race
・ Cliff – The Musical
・ Cliff's Amusement Park
・ Cliff's Hit Album
・ Cliff's Variety Store
・ Cliff, Kentucky
・ Cliff, Lewis
・ Cliff, Michigan
・ Cliff, New Mexico
Cliff-former
・ Cliff-rose
・ Cliff-top dune
・ Cliffard D. Carlson
・ Cliffcrest
・ Cliffdale Creek
・ Cliffdale, Illinois
・ Cliffdell, Washington
・ Cliffe
・ Cliffe and Cliffe Woods
・ Cliffe Castle Museum
・ Cliffe Dekker Hofmeyr
・ Cliffe Fort
・ Cliffe Hill
・ Cliffe Hill Mineral Railway


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Cliff-former : ウィキペディア英語版
Cliff-former

A cliff-former is a geological unit of bedrock that is more resistant to erosion than overlying or underlying strata and consequently produces outcrops with high slope angles. It is more or less equivalent to ''ridge-former'', and may be contrasted with slope-former. In humid environments, sandstones are typically cliff-formers. In arid environments, limestones are often cliff-formers also. Recent lavas may be cliff-formers as well.
In the Ridge-and-Valley Appalachians of the eastern United States the major ridge-formers are the Tuscarora, Pocono, and Pottsville Formations.
==References==



抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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