I-100cm enkulu amabele amabele amancane onodoli

Ama-zircons angamaminerali ayithandayo phakathi kososayensi ngoba baqinile. Lama-micrometer-usayizi Amakristalu angamelana nezigidigidi zezigidi zeminyaka ukuze alondoloze izimfihlo ze-geochemical zokuzalwa kwazo. Baphinde bathumba amasotopes e-uranium avela emvelweni njengoba befomu, abasebenza njengesikhathi esiqala kusukela lapho u-zircons crystallize.ebony

I-Uranium Isotopes ebola ibe yiRedior Ngamanani Angaphezulu. Ngokubala inani lama-athomu aholayo lawo kanye nama-athomu e-uranium asalayo, abacwaningi bangathola ukuthi isikhathi esingakanani sesidlulile selokhu kwakhiwe kahle i-zircons kusuka ku-molten material.zerbian sex

Ababhali beSifundo baphenya ama-barcon ashumeke esampula leLunar Rock eliqoqwe ngesikhathi sika-Apollo 17 ngo-1972, futhi bakha imephu ye-3D yama-athomu. I-Talling i-Isotopees ye-Lead iphumela eminyakeni eyi-446 billion, iminyaka endala kakhulu yokwakheka kwe-Lunar Crust.

Lo nyaka ubunqunywe ngaphambili ngabasebenzisana bakaGreer beholwa nguBidong Zhang kanye no-Audrey Bouvier ngo-2021, kepha lo mbiko wadonsela ukungabaza. Abagxeki bakhomba eqinisweni lokuthi ama-athomu aholayo athambekele ekuhambeni amaphakethe okugxila okuphezulu noma okuphansi kulo lonke idwala. Ngokuya ngokuthi umuntu wabheka kuphi, kwaba nethuba lokuthi bangathola lezi zingosi zokuhola ezivikelekile ngokungalingani futhi zibuse ubuciko be-zircon.

Ukuqinisekisa lokhu kukhathazeka, i-Bouvier isondela eqenjini likaGreer ukubala ama-athomu futhi, kulokhu ngophenyo lwe-ion olungasampula idwala ngokulungiswa okuphezulu kakhulu kwendawo okusetshenzisiwe esifundweni esedlule. Ukuphenya okuhle kungavumela iqembu ukuthi likhombe izifunda ze-nanosezed zama-athomu okuhola acebisayo noma ancishisiwe, uma ngabe kukhona ababekhona. Kepha bathola

"Kule zircon, konke bekungafanelekile, ngakho-ke besingafanele ngisho nokukhathazeka ngalokho," kusho umlobi ofundwayo uPhilipp Heck, umnyuziyamu wasensimini nase-University of Chicago. Umphumela wakuqinisekisa ukuthi iminyaka ekade ekalwa ngeminyaka eyizigidi eziyizinkulungwane ezingama-446 yayinembile.

UMelanie, eSifundo Esihle Kakhulu, "kusho uMelanie Barboni, i-geochemist e-Arizona State University eyayingazibandakanyi ocwaningweni. UBarboni wafunda amanye amasotopes eLunar Zircons ukuthola ukuthi ingaphakathi lenyanga lizinze kuqala ezingxenyeni ezihlukile eminyakeni engu-4,51 billion edlule, isiqephu esandulela izigaba zokugcina zokwakheka okusha.

UBarboni uthi lolu cwaningo olusha luyahambisana nokutholakele kwakhe. "Amaphepha amaningi aphakamisa ukuthi inyanga yasungulwa kamuva kakhulu kunaleyo, iminyaka eyizigidi eziyizinkulungwane ezingama-173, ngokwesibonelo," uyanezela. "Kuyacaca ukuthi kungenzeka naleyo datha."