Gilashin duniya mai shekaru 12,000 da aka gano a Kudancin Amurka, an warware asirin asalin

A da, an yi amfani da tagogin takarda a kasar Sin ta da, kuma a zamanin yau ana amfani da tagogin gilasai, wanda hakan ya sa bangon labulen gilashin a birane ya zama abin gani mai kyau, amma kuma an samu gilashin da ya shafe shekaru dubun-dubatar a doron kasa, a daidai lokacin. wani titin da ke da nisan kilomita 75 daga cikin hamadar Atacama da ke arewacin kasar Chile ta Kudancin Amurka.Adadin gilasan siliki mai duhu sun warwatse a cikin gida, kuma an gwada su a nan tsawon shekaru 12,000, tun kafin mutane su ƙirƙira fasahar yin gilashi.An yi hasashe game da inda waɗannan abubuwan gilashin suka fito, saboda kawai konewar zafi mai tsananin zafi ne kawai zai ƙone ƙasa mai yashi zuwa lu'ulu'u na siliki, don haka wasu sun ce "wutar jahannama" ta taɓa faruwa a nan.Wani bincike na baya-bayan nan da Sashen Duniya, Muhalli da Kimiyyar Duniya na Jami’ar Brown ya jagoranta, ya nuna cewa mai yiwuwa gilashin ya samo asali ne sakamakon zafin wani tsohon tauraron dan wasan wutsiya da ya fashe a saman doron duniya a cewar wani rahoton Yahoo a ranar 5 ga watan Nuwamba.A wasu kalmomi, an warware asirin asalin waɗannan tsoffin tabarau.
A cikin binciken Jami'ar Brown, wanda aka buga kwanan nan a cikin mujallar Geology, masu bincike sun ce samfuran gilashin hamada sun ƙunshi ƙananan gutsuttsura waɗanda ba a samun su a duniya a halin yanzu.Kuma ma'adinan sun yi daidai da nau'in kayan da NASA's Stardust mission ya dawo da su duniya, wanda ya tattara barbashi daga wani tauraro mai wutsiya mai suna Wild 2. Tawagar ta haɗe da wasu bincike don ƙaddamar da cewa waɗannan ma'adinan ma'adinai mai yiwuwa sakamakon wani tauraro mai wutsiya ne da ke da abun da ke ciki. kama da Wild 2 wanda ya fashe a wani wuri kusa da Duniya kuma wani bangare kuma cikin sauri ya fada cikin hamadar Atacama, nan take ya haifar da tsananin zafi da narkar da saman yashi, yayin da ya bar wasu kayansa.

Wadannan gawawwakin gilashin sun ta'allaka ne a hamadar Atacama da ke gabashin kasar Chile, wani tudu a arewacin kasar Chile mai iyaka da Andes zuwa gabas da kuma gabar Tekun Chile a yamma.Tun da babu wata shaida ta tashin tashin hankali a nan, asalin gilashin koyaushe yana jan hankalin al'ummomin kasa da kasa don yin bincike na gida mai dacewa.

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Wadannan abubuwa masu gilashin suna dauke da sinadarin zircon, wanda kuma a yanayin zafi yakan rushe ya zama baddeleyite, canjin ma'adinan da ke buƙatar isa ga yanayin zafi sama da digiri 1600, wanda ba shi da wutar duniya.Kuma a wannan lokacin binciken na Jami'ar Brown ya kara gano nau'ikan nau'ikan ma'adanai da aka samu kawai a cikin meteorites da sauran duwatsun waje, irin su calcite, sulfide iron sulfide da calcium-aluminum-rich inclusions, daidai da sa hannun ma'adinai na samfuran tauraro mai wutsiya da aka ɗauka daga NASA's Stardust manufa. .Wannan ya kai ga ƙarshe na yanzu.


Lokacin aikawa: Nuwamba 16-2021