Ilimin Kimiyyar Juyin Sifar Kasa (Geomorphology)
Ilimin kimiyyar tsarin kasa "Geomorphology" (daga tsohuwar yaren Girkanci : γῆ, gê, "ƙasa"; μορφή, morphḗ, "form"; da λόγος, lógos, "karatu") shine binciken kimiyya na asali da juyin halittar yanayin ƙasa da fasali na sifa da aka riska, da wadanda sunadarai ko hanyoyin nazarin halittu masu aiki a kusa da saman Duniya. Geomorphologists wato masu ilimin nazarin juyin tsarin kasa" nemi su fahimci dalilin da ya sa shimfidar duba hanyar da suka aikata, to fahimta landform da ƙasa tarihi da kuma muhimmancin da kuma hango ko hasashen canje-canje ta hanyar hade da filin lura, jiki gwaje-gwajen da na lamba tallan kayan kawa. Geomorphologists suna aiki a cikin fannoni kamar ilimin ƙasa, geology, geodesy, geology engineering, archeology, climatology and geotechnical engineering . Wannan babban tushen abubuwan sha'awa yana ba da gudummawa ga yawancin hanyoyin bincike da abubuwan sha'awa a cikin filin.

Bayani 
Doron kasa na duniya da aka canza ta hanyar hade-haden shifidu daban daban da da sigogi matakai cewa siffar shimfidar wurare, da kuma geologic matakai da suka haddasa tectonic karfafa da kuma subsidence, da kuma siffar da jihar bakin teku labarin kasa. Hanyoyin saman sun ƙunshi aikin ruwa, iska, kankara, wuta, da rayuwa akan farfajiyar Duniya, tare da halayen sunadarai waɗanda ke samar da ƙasa kuma suna canza kaddarorin abu, kwanciyar hankali da ƙimar canjin yanayin ƙasa ƙarƙashin ƙarfin nauyi, da wasu dalilai, kamar (a cikin kwanan nan da suka gabata) canjin ɗan adam na shimfidar wuri. Yawancin waɗannan abubuwan suna da tsaka -tsakin yanayi ta yanayi. Geologic matakai sun hada da karfafa daga dutsen jeri, da girma da volcanoes, isostatic canje-canje a cikin ƙasa surface tadawa (wani lokacin a mayar da martani ga surface matakai), da kuma samuwar zurfin sedimentary daruna inda surface na Duniya saukad da aka cika da kayan eroded daga sauran sassan shimfidar wuri. Saboda haka farfajiyar ƙasa da shimfidar shimfidar yanayi ta kasance tsinkayar yanayin yanayi, aikin ruwa, da aikin ilimin halittu tare da tsarin ilimin ƙasa, ko kuma akasin haka, tsinkayen lithosphere na duniya tare da hydrosphere, yanayi, da yanayin halitta.

Manazarta.