Tsarin carbonate-silicate

A **carbonate-silicate geochemical sake zagayowar**, kuma aka sani da **inorganic carbon sake zagayowar**, ya bayyana da dogon lokacin da canji na silicate duwatsu zuwa carbonate duwatsu ta weathering da sedimentation, da kuma canji na carbonate duwatsu koma cikin silicate duwatsu ta metamorphism da volcanism .    Ana cire carbon dioxide daga sararin samaniya yayin binne ma'adinan yanayi kuma a mayar da shi cikin yanayin ta hanyar volcanism . A kan ma'auni na shekaru miliyan, zagayowar carbonate-silicate shine babban mahimmanci wajen sarrafa yanayin duniya saboda yana daidaita matakan carbon dioxide don haka yanayin zafi na duniya. 

Yawan yanayin yanayi yana da hankali ga abubuwan da ke canza yawan ƙasar da aka fallasa. Wadannan dalilai sun hada da matakin teku, Yanayin ƙasa, lithology, da canje-canje na ciyayi. Bugu da ƙari, waɗannan canje-canjen geomorphic da sunadarai sun yi aiki tare da tilasta hasken rana, ko saboda canje-canjin orbital ko juyin halitta na taurari, don ƙayyade zafin jiki na duniya. Bugu da ƙari, an yi la'akari da sake zagayowar carbonate-silicate a matsayin yiwuwar warware matsalar matasa masu rikitarwa.

## Bayani game da sake zagayowar

Tsarin carbon-silicate shine iko na farko akan matakan carbon dioxide a tsawon lokaci. Ana iya ganin shi a matsayin reshe na sake zagayowar carbon, wanda ya haɗa da sake zagayolar carbon na kwayoyin halitta, wanda tsarin halittu ke canza carbon dioxide da ruwa zuwa kwayoyin halitta da iskar oxygen ta hanyar photosynthesis.

### Tsarin jiki da sinadarai

Zagayen inorganic yana farawa tare da samar da carbonic acid (H 2 CO 3 ) daga ruwan sama da iskar carbon dioxide.  Saboda wannan tsari, ruwan sama na yau da kullun yana da pH na kusan 5.6.  Carbonic acid acid ne mai rauni, amma a tsawon lokaci mai tsawo, yana iya narkar da duwatsun silicate (da kuma duwatsun carbonate). Yawancin ɓawon ƙasa (da alkyabba) sun ƙunshi silicates.  Wadannan abubuwa sun rushe zuwa narkar da ions a sakamakon haka. Alal misali, silicate silicate (CaSiO 3 ), ko wollastonite, yana amsawa tare da carbon dioxide da ruwa don samar da ion calcium, Ca 2+, ion bicarbonate, HCO 3 -, da silica narkar da. Wannan tsarin dauki shine wakilcin yanayin yanayin silicate na ma'adanai na silicate na calcium.  Hanyar sinadarai ita ce kamar haka:

### Bayani
Canje-canje ga farfajiyar duniyar, kamar rashin tsaunuka masu fitattun wuta ko matakan teku mafi girma, wanda zai rage yawan ƙasar da aka fallasa ga yanayin zai iya canza farashin da matakai daban-daban ke faruwa a wannan sake zagayowar Fiye da dubban zuwa daruruwan miliyoyin shekaru, matakan carbon dioxide a cikin yanayi na iya bambanta saboda rikice-rikice na halitta a cikin sake zagayowar   amma har ma da yawa, yana aiki ne a matsayin mummunan ra'ayi tsakanin matakan carbon dioxide da canje-canjen yanayi. Misali, idan CO2 ya tara a cikin yanayi, tasirin greenhouse zai yi aiki don kara yawan zafin jiki, wanda hakan zai kara yawan ruwan sama da yanayin silicate, wanda zai cire carbon daga yanayi. Ta wannan hanyar, a cikin dogon lokaci, sake zagayowar carbonate-silicate yana da tasiri mai daidaitawa a kan yanayin Duniya, wanda shine dalilin da ya sa aka kira shi thermostat na Duniya

## Manazarta