Butte

Mittens da Merrick Butte a cikin Monument Valley, Utah-Arizona

Butte
Bayanai
Ƙaramin ɓangare na	landform (en)
Fuskar	dutse da Ilimin Kimiyyar Juyin Sifar Kasa (Geomorphology)

A cikin ilimin ƙasa, dutse (/bdutse'">juːt/ BYOOT) tudun ne mai nisa tare da bangarori masu tsayi, sau da yawa a tsaye da ƙananan, masu laushi; butte ƙananan siffofi ne fiye da mesa, filayen, da kuma filayen. Kalmar butte ta fito ne daga kalmar Faransanci butte, ma'ana 'knoll' (na kowane girman); amfani da ita ya zama ruwan dare a Yammacin Amurka, gami da kudu maso yamma inda ake amfani da mesa (Spanish don 'Tebur') don mafi girma. Saboda siffofinsu na musamman, buttes sau da yawa alamomi ne a filayen da wuraren tsaunuka. Don rarrabe siffofin ƙasa guda biyu, masu ilimin ƙasa suna amfani da dokar yatsa cewa mesa yana da saman da ya fi tsayinsa girma, yayin da butte yana da saman wanda ya fi tsayi fiye da tsayinsa.

Kafawa

Buttes suna samuwa ta hanyar yanayi da rushewa lokacin da hard Caprock ya rufe wani nau'i na dutse mara ƙarfi wanda a ƙarshe ya lalace. Dutse mai wuya a saman butte yana tsayayya da rushewa. Caprock yana ba da kariya ga dutsen da ba shi da ƙarfi a ƙasa daga iska wanda ya bar shi tsaye a ware. Yayin da saman ya kara lalacewa ta hanyar abrasion da kuma yanayin yanayi, kayan da suka wuce da suka fadi sun kara da tsaunuka ko gangaren da ke kewaye da tushe. A kan karamin sikelin, wannan tsari yana samar da hoodoos.

Shahararrun tuddai

Mitten Buttes na Monument Valley a cikin layin jihar Utah-Arizona sune biyu daga cikin mafi banbanci da kuma sanannun buttes. Monument Valley da Mittens sun ba da asali a cikin al'amuran fina-finai da yawa na yamma, gami da fina-fukkuka bakwai da John Ford ya jagoranta. Wani sanannen sanannen butte kuma ana daukar hoto akai-akai a arewacin Arizona shine Thumb Butte, wanda ke kallon birnin Prescott kuma shine mafi shahararren alamar geologic a kusa. Hasumiyar Iblis a arewa maso gabashin Wyoming wani dutse ne mai laccolithic wanda ya ƙunshi dutse mai laushi maimakon sandstone, dutse mai tsawo ko wasu duwatsu masu laushi.

Hasumiyar Iblis a Wyoming

Kalmar butte wani lokacin ana amfani da ita sosai ga tsaunuka masu tsawo da ke da kaifi ko dutse, maimakon shimfiɗa, saman. Shahararrun tsari guda uku waɗanda ake kira butte ko kuma ana iya la'akari da buttes duk da cewa ba su dace da mulkin masanin ilimin ƙasa ba sune Scotts Bluff a Nebraska wanda shine tarin bluffs guda biyar, Crested Butte, wanda shine dutse 12,168 feet (3,709 m) a Colorado, da Elephant Butte, waɗanda yanzu tsibiri ne a cikin Elephant Butta Reservoir a New Mexico.

Daga cikin sanannun dutse marasa farfajiya a Amurka sune Bear Butte, Dakota ta Kudu, Oregon)" Black Butte (Oregon)">Black Butte, Oregon, da Sutter Buttes a California. A lokuta da yawa, an ba buttes wasu sunayen da ba sa amfani da kalmar butte, misali, Courthouse Rock, Nebraska. Har ila yau, wasu manyan tuddai waɗanda ba buttes ba ne suna da sunaye ta amfani da kalmar, misalai daga cikinsu sune Kamiak Butte, Chelan Butte da Steptoe Butte a Jihar Washington.

Gidan wasan kwaikwayo

• 
  Courthouse Butte near Sedona, Arizona
• 
  Qaxaç Qalası or Kachaghakaberd fortress, Khojali District, Azerbaijan
• 
  Pawnee Buttes, Pawnee National Grassland, Colorado
• 
  Tamanrasset Province, Algeria

Bayanan da ke ƙasa

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