100cm Amabele Amakhulu Amabele Amancinci Oonodoli Bothando

Ii-Zircons ziyiminerali eyintandokazi phakathi kwezazinzulu kuba ziqinile. Ezi micrometer-ubungakanani Iikristale zinokumelana nemozulu ngaphezulu kweebhiliyoni zeminyaka ukugcina iimfihlo ze-geochemical zokuzalwa kwazo. Baphinde babambe i-uranium isotopes ukusuka kwimekobume njengoko besenza, esebenza njengexesha eliqala ukusuka kumzuzu ii-zircons crystallize.I-Ebony Sex Doll.

I-uranium isotopes ibola ibe ilothe ngamaxabiso aqikelelwayo. Ngokubala inani leeathom zelothe ezenza kunye ne-athomu ye-uranium eseleyo, abaphandi banokufumanisa ukuba lingakanani ixesha elidlulile ukususela ekubeni i-zircon lukhuni kwizinto ezityhidiweyo.I-Lesbian Sex Doll

Ababhali bophononongo baphonononga ii-zircon ezifakwe kwisampulu yamatye yenyanga eqokelelwe ngexesha le-Apollo 17 ngo-1972, kwaye bakha imephu ye-3D yee-athomu. Ukubalanisa ii-isotopes ezikhokelayo kubangele iminyaka eyi-4.46 yezigidigidi zeminyaka, eyona minyaka indala yokwakheka kwe-lunar crust okwangoku.

Le minyaka ibikade igqitywe ngabadibanisi bakaGreer abakhokelwa nguBidong Zhang kunye no-Audrey Bouvier ngo-2021, kodwa ingxelo yatsala amathandabuzo. Abahlalutyi balatha kwinto yokuba iiathom zelothe zikholisa ukufuduka zenze iipokotho zoxinzelelo oluphezulu okanye olusezantsi kulo lonke ilitye. Ngokuxhomekeke apho umntu ajonge khona, bekukho ithuba lokuba banokudibana nezi ndawo zikhokelayo ezingasasazwanga ngokulinganayo kwaye babale iminyaka ye-zircon.

Ukunciphisa ezi nkxalabo, u-Bouvier wasondela kwiqela likaGreer ukuba libale iiathom kwakhona, ngeli xesha nge-ion probe enokuthi isampuli yelitye kwisisombululo esiphezulu kakhulu esisetyenziswe kwisifundo sangaphambili. Uphononongo olucokisekileyo luya kuvumela iqela ukuba lichonge imimandla ene-nanosized ye-athomu ye-lead etyetyisiweyo okanye ephelelweyo, ukuba kukho na. Kodwa abazange bafumane nanye.Melina Elden Ring Sex Doll

"Kule zircon, yonke into yayifana, ngoko ke asizange sibe nexhala malunga naloo nto," utshilo umbhali ofundayo uPhilipp Heck, isazi sendalo esikwiMyuziyam yaseField kunye neYunivesithi yaseChicago. Isiphumo saqinisekisa ukuba ubudala obulinganiswe ngaphambili beminyaka eyi-4.46 yezigidigidi buchanekile.

“Luphononongo oluhle kakhulu,” utsho uMelanie Barboni, ingcali yokwakheka komhlaba kwiYunivesithi yase-Arizona State owayengazibandakanyi kuphando. UBarboni uye wafunda ezinye ii-isotopes kwii-zircon zenyanga ukufumanisa ukuba ingaphakathi lenyanga lahlala lihlala kwi-4.51 yebhiliyoni kwiminyaka eyadlulayo, isiqendu esandulela izigaba zokugqibela zokubunjwa koqweqwe olubanjwe kuphononongo olutsha.

U-Barboni uthi uphando olutsha luyahambelana neziphumo zakhe. “Amaphepha amaninzi acebisa ukuba inyanga yakha emva kwexesha elide, ngokomzekelo, iminyaka eyi-4.3 yeebhiliyoni,” wongezelela. "Kucacile ukuba akunakwenzeka ngale datha."