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. 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.