Dogayen duwatsun Chiricahua a Arizona sun fara samuwa ne daga mummunar fashewar aman wuta kimanin shekaru miliyan 27 da suka wuce. Rahoton NASA Earth Observatory na ranar 28 ga Oktoba ya yi amfani da sabon hoton Landsat wajen bayyana tarihinsu. Daga kasa suna kama da ginshikai dabam-dabam, amma asalinsu yana cikin tsarin aman wuta mai girma.
Fashewar ta watsa toka da duwatsun pumice a yankin. Rafin gutsattsarin dutse masu zafi ya daskare ya zama yaduddukan rhyolitic tuff masu kauri. Lokacin da wurin magma na karkashin kasa ya zube, kasar da ke sama ta rushe, ta bar Turkey Creek caldera. Daga wadannan kayan ne yanayin wurin na yau ya samo asali.
Sauyin yanayi da zaizayar kasa sun sassaka duwatsun a hankali zuwa ginshikai da kwaruruka. Wasu suna dauke da manyan duwatsu a samansu, wasu kuma sun taru cikin kungiyoyi masu yawa. Bayanin Apache na wurin a matsayin kasar duwatsu masu tsayuwa ya dace da yanayinsa, kuma yana tunatar da tarihin mutanen yankin.
Landsat 9 ya dauki hoton ranar 2 ga Yuli. Ginshikan daya-daya sun yi kankanta da za a gane su a hoton sararin samaniya. Abin da ake gani shi ne manyan duwatsu masu launin toka da korayen kwaruruka masu lankwasawa. Hada wannan kallo da binciken kasa yana taimaka wajen fahimtar alakar ruwa, tsirrai da dutse.
Yawan nau'o'in halittu wani abu ne na musamman a yankin. Manyan yankunan muhalli daban-daban suna haduwa a nan, saboda haka tsirran hamada da dazuzzukan tsaunuka suna kusa da juna. Tsaunukan Chiricahua suna cikin tsaunukan Arizona da ake kira tsibiran sama, domin suna tashi daga filayen hamada da ke kewaye.
Rahoton Oktoba ya kuma bayyana sabon matsayinsa na wurin shakatawa na kasa. Amma darajar duwatsun ta dade kafin wannan sauyin mulki. Sabon hoton tauraron dan adam ba ya nufin an gano sabon dutse. Amfaninsa shi ne nuna yadda aikin aman wuta da zaizayar da ta dade suka hada kai wajen samar da siffofin yau.