Ginin dutse

Domes na Granite tuddai ne na gida wanda ya ƙunshi granite tare da dutsen da ba a sani ba wanda aka fallasa akan mafi yawan saman. Gabaɗaya, fasali na gida irin waɗannan ana kiran su bornhardts . Bornhardts na iya samuwa a kowane nau'i na dutsen plutonic amma yawanci sun hada da granite da granitic gneiss . Kamar yadda granitic plutons sanyi kilomita a ƙasa da saman Duniya, ma'adanai a cikin dutsen crystallize a karkashin iri daya tsare matsa lamba. Zazzagewa yana kawo kusa da dutsen zuwa saman duniya kuma matsin lamba daga saman dutsen yana raguwa; sakamakon haka dutsen ya karye . Wadannan karaya an san su da exfoliation gidajen abinci, ko takardar karaya, kuma suna samuwa a cikin alamu masu kama da albasa waɗanda suke daidai da ƙasa. Waɗannan zanen gadon dutse suna barewa daga saman da aka fallasa kuma a wasu yanayi suna haɓaka tsarin gida. Ƙarin ra'ayoyin game da asalin ƙofofin granite sun haɗa da scarp-retreat da tectonic uplift. Karyewar takarda Fassara fashe sune faɗuwar faɗuwa da ke bayyana ginshiƙan dutse waɗanda ke tsakanin 0.5 zuwa 10. mita kauri. Yawancin lokaci suna yin saiti daidai da saman Duniya amma suna iya samuwa a cikin juzu'i-zuwa sama ko maɗaukakiyar sama. Akwai da yawa yiwu bayani ga samuwar takardar karaya. Shahararriyar hasashe ita ce sakamakon faɗaɗawa da faɗuwar ɓarna sakamakon ɓarnawar ɓarna ko sakin matsa lamba . Akwai shaidun da ke goyan bayan wannan hasashe lokacin da ake duban sifofin ƙasa waɗanda ke da karaya. Granite yana yin zurfi a cikin ɓawon ƙasa a ƙarƙashin yanayin babban yanayi ko matsin lamba. Domin granite ya fallasa a saman duniya dole ne a zubar da kauri mai yawa. Wannan zazzagewar yana ba da damar granite don faɗaɗa radially kuma fashe fashe ya zama tangtially zuwa damuwa na radial . Wannan yana nuna cewa siffar ƙasar da aka rigaya ta kasance tana ƙayyade lissafin ƙwanƙwasa takardar. Sauran ka'idojin asali Ɗayan hasashe shine cewa ƙwanƙolin granite an ɗaga su tubalan. Wannan shi ne yanayin da wasu kusoshi na granite amma karaya masu alaƙa da haɗin gwiwar exfoliation shine abin da ke sarrafa gangaren gangaren. Wata ka'idar da ta shafi keɓancewar bornhardts ita ce cewa suna wanzuwa bayan koma bayan tattalin arziki mai nisa. Yanayin yanayi mai alaƙa da danshi shine ke haifar da koma bayan tabo. A cikin yanayin granite a cikin shimfidar wuri da aka rarraba busassun busassun dutsen da ke kan gangara ya kasance barga kuma yana aiki azaman caprock. Granite da ke ƙasan wannan yana da sauƙin yanayi kuma yana lalacewa saboda an fallasa shi ga danshi kuma ya yi sanyi. Wannan a ƙarshe yana haifar da hawan gangara da rugujewar abubuwa masu gangara da kuma kula da gyale na ainihin son zuciya da ilimin halittar jiki yayin suturar baya. Duba kuma Bald Rock National Park, Australia Corcovado – Mountain in Rio de Janeiro, home to Christ the Redeemer, Brazil El Capitan – Vertical rock formation in Yosemite National Park, California, US, United States Exfoliating granite – Granite skin peeling like an onion (desquamation) because of weathering Enchanted Rock – Rock formation and protected area in central Texas, United States Fresno Dome – Granite dome in the state of California, United States Granite Belt, Australia Granite Dome, California, US Half Dome – Granitic dome in Yosemite National Park, California, United States Huangshan – Mountain range in southern Anhui, China China Looking Glass Rock – Mountain in Transylvania County, North Carolina, United States, United States Stawamus Chief – Mountain in British Columbia, Canada, Canada Stone Mountain – Mountain and park in Georgia, United States, United States Yosemite National Park – National park in California, United States, United States Manazarta