Ka taƙaita labarin:  An gano wani sabon'superviscous' Layer a cikin ƙasa na ƙasa. Binciken na iya bayyana dalilin da yasa wasu sassan duniyoyin tectonic na Duniya suke nutsewa a wasu lokuta suna tsayawa da kuma kauri 930 mil (1,500km) a karkashin kasa. Hakanan zai iya bayyana dalilin da yasa girgizar ƙasa ke faruwa a cikin zurfin cikin ƙasa, yana ba da shawarar cewa ya fi zafi fiye da yadda ake tsammani. Ana nunawa a nan wani hoto ne mai sauƙi na wani yanki daga ɗaya daga cikin faranti na tectonic na duniya yana nutsewa ta saman saman sama, sa'annan ya tsaya kuma ya haɗu a zurfin mil 930, inda gwaje-gwajen Jami'ar Utah suka nuna wanzuwar matsananciyar rigar ko mai laushi a cikin Duniya. An gudanar da binciken ne ta hanyar masana kimiyya a Jami'ar Utah ta hanyar murkushe ma'adanai tsakanin lu'u-lu'u don yin koyi da yanayin da ke cikin ƙasa. Babban yadudduka na duniya sune siririn fata mai zurfin mil huɗu zuwa 50 (kilomita shida zuwa 80), mayafin da ya kai mil mil 1,800 (2,900km) mai zurfi da kuma ƙarfe na ƙarfe. Amma akwai subdivisions. Ƙarƙashin ƙasa da wasu daga cikin saman mayafin suna samar da tectonic ko lithospheric faranti 60 zuwa 90 mil (97 zuwa 145km) kauri waɗanda suke kama da saman gefen bel ɗin jigilar kayayyaki da ke ɗauke da nahiyoyi da tekuna. Suna da alhakin samuwar nahiyoyi, kuma har yanzu suna aiki - kamar yadda girgizar ƙasa da fashewar dutsen mai aman wuta suka nuna. Koyaya, masu bincike basu taɓa iya gano dalilin da yasa Duniya ta haɓaka faranti na tectonic ba, amma sauran taurari basuyi ba. A shekarar da ta gabata, Yale ta ce ta warware asirin - kuma ta ce mabuɗin ƙananan ma'adanai ne a cikin duwatsu. Binciken ya nuna yadda da kuma lokacin da Duniya ta zo ta samar da daya daga cikin siffofinta na musamman - rigid tectonic plates - da kuma dalilin da ya sa Venus, makwabcin makwabcin duniya, bai taba ba. 'Muna tunanin cewa duk ya zo ne ga halayyar ƙananan ƙwayoyin ma'adanai a cikin duwatsu,' in ji masanin ilimin ƙasa na Yale Dr. David Bercovici, babban marubucin binciken da aka buga a mujallar Nature. Masu binciken sun yi jayayya cewa a farkon zamanin Duniya, haɗuwar mayafin ya haifar da yankuna masu rauni a cikin lithosphere - ƙashin waje na duniyar. Waɗannan yankuna sun ci gaba, sun zama iyakokin farantin, kuma a ƙarshe...
Bincike ya gudanar da masana kimiyya a Jami'ar Utah. Sun murkushe ma'adanai tsakanin lu'u-lu'u don kwaikwayon zuciyar duniya. Kuma sun gano cewa dole ne a sami wani sabon yanki mai nisan mil 930 a karkashin kasa. Yankin da ke da kyau zai iya bayyana dalilin da yasa wasu faranti ba sa nutsewa. Binciken ya kuma nuna cewa cikin duniya ya fi zafi fiye da yadda aka zata.