Girkanci na ƙasa na Girka

da tsarin farko, sun samo asali ne daga farfajiyar farfajiyar, ta hanyar narkar da farar ƙasa ko ta hanyar biyan kuɗi, don haka suka zama kankara. Waɗannan kyawawan kwari ne, masu zurfin kwari tare da bango a tsaye, saboda narkewar farar ƙasa, rushewar ta fi girma a cikin kwarin fiye da bangon. Muna da ramuka, ɓacin rai a cikin ƙasa waɗanda kusan kowane lokaci suke zagaye, ana yin su ne lokacin da duwatsu suka narke ko kuma lokacin da rufin kogo ya faɗi. Abinda yake da alaƙa da nutsewar ruwa shine poljés, baƙin ciki na kilomita da yawa. Ruwan wankan ramuka ne a saman ƙasar, ta inda ruwan ke ratsawa zuwa cikin mashigar mai kulawa. A cikin ramuka rafi na iya ɓacewa kuma ya bayyana kilomita da yawa. daga baya, a cikin sama. Surgence wuri ne inda ruwan karkashin kasa yake zuwa waje.

Layin saitunan tashoshi ne, wanda aka samar da ruwan daji. An kirkira travertines ko ƙafafun tuwane ta hanyar hawan iskar calcium mai tsire-tsire.

Tsarin Endokarst Sun samo asali ne daga cikin masassara, saboda aikin ruwan da aka kutsa kai daga saman, ta hanyar zagawar ruwa, kogwanni, kogon dutse, da manyan kogunan ruwa sun samo asali, a cikinsu akwai wasu gabobi, wadanda suke tsaye ne a cikin mahaifa, Keɓaɓɓun tashoshin galleries, ƙirƙirar cibiyar sadarwa mai rikitarwa. Lokacin da wani ɓangare na rufin ya keɓe, sai su yi taswira, waɗanda ake kira caverns. Lokacin da aka sanya gishirin ma'adinai, calcium carbonate, a cikin kogon sai a kira su speleothems, suna da nau'uka da yawa.

Stalactites sune abubuwan ajiyar carbonate wanda ke rataye daga rufin ɗakunan ajiya ko kogo.

Stalagmites an kafa su a ƙasa ta hanyar tarin ɗigon ruwa suna fadowa daga rufi, dukansu suna da saurin ci gaba, suna ɗaukar ƙarni da yawa don ƙirƙirar cman cm.

Lokacin da stalagmite da stalactite suka haɗu sai suka kafa shafi, labulen kuma wani tsari na ban mamaki ana kafa su ta hanyar motsi ruwa a kan rufin.


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