NgoMeyi 2020, ensimini ye-Sahara Desert, kwatholakala kakhulu i-meteorite, okuyingxenye eyayingenaso isikhathi sokwakha iplanethi. Kukholakala ukuthi kwakhiwa itshe elincane eminyakeni engaphezu kwezigidi eziyizinkulungwane ezingama-1,6 edlule, okungukuthi, mdala kunezwe. Abaphenyi basabandakanyeka ekufundeni into etholakele futhi bakholelwe ukuthi kungaveza amaqiniso amaningi athakazelisayo mayelana nokwakhiwa kwamaplanethi ohlelweni lwelanga. Njengengxenye yalesi sihloko, ngiphakamisa ukuthola ukuthi yini ngempela ososayensi abaziyo nge-meteorite engajwayelekile nokuthi kungani iplanethi, okuyingxenye yayo, futhi ayikwazanga ukwakha ngokuphelele. Kuyafaneleka ukuqala ngeqiniso lokuthi into etholile ayikhiwa ezinhlasweni zothuli namatshe, njengama-meteorites amaningi ajwayelekile. I-Meteorite inemvelaphi yentaba-mlilo, okungukuthi, ibhekisela ekilasini lama-Ahondrites, mayelana nokungafani nalo engikushoyo.
I-Meteorite engavamile ehlane laseSahara
Ngokusho kweSayensi ye-Edition Scincealert, iMeteorite etholakele yanikezwa igama elithi Erg Chech 002 (EC 002). Kwatholakala kwikhilogremu enkulu engu-32 yengxenye yohlobo lokuzalela, endaweni yogwadule lwesihlabathi sika-Erg-Chech entshonalanga yeSahara. Ososayensi bakuqonda ngokushesha ukuthi babhekana nokuthile okungajwayelekile futhi okungavamile kakhulu. Imvamisa, ama-meteorite abizwa ngokuthi ama-clondrious awela emhlabathini, aqukethe ama-chondrov ahlanganisiwe - ukwakheka kwefomu eliyindilinga elinobubanzi obungadlulisi amamitha ayi-1. Futhi i-meteorite etholakele isho i-ahondrita, equkethe i-chondrov. Kukholelwa ukuthi ama-Ahondiri ancishwa ukwakheka okuyindilinga ngenxa yokuncibilika, okuvame ukwenzeka ngezinqubo zentaba-mlilo.
Ososayensi bakholelwa ukuthi i-meteorite iyingxenye yama-protoplanets. Leli yigama lomhlaba ezigabeni zokuqala zokuvela kwalo, esevele edlulile esigabeni sokuncibilika kwe-Inland. Lokhu kufakazelwa yiminyaka ye-Meteorite - Ukuhlaziywa kukhombisa ukuthi kwasungulwa eminyakeni engaba yizigidi eziyizinkulungwane ezingama-1,6 edlule. Ukuze uqhathanise, iminyaka yoMhlaba ilinganiselwa eminyakeni eyizigidi eziyizinkulungwane ezingama-4,5. Okungukuthi, i-meteorite yavuka ngaphambi kwesikhathi sangaphambilini kuneplanethi yethu futhi, ngokufanele, phezu kwayo. Ngezigidigidi zeminyaka, wandiza edlula emaceleni ohlelo lonozungezilanga aze, ekugcineni, akazange awele endaweni yeSahara.
Ngokusho kwabaphenyi, ukutholwa kwe-meteorite enjalo kuyinto ebaluleke kakhulu futhi ebalulekile emphakathini wesayensi. Futhi ngokuvamile, ithuba lokuthola i-Ahondirite evela kososayensi lincane kakhulu. Ngokusho kwedatha yezinhlamvu ze-meteoritical, lapho idatha evela kuwo wonke amasolo awela emhlabeni, kuwo wonke umlando wokuqashelwa, abacwaningi bathole ama-3,179 ama-3,179 kuphela ama-meteorites anjalo. Eminye imithombo ithi ama-Ahondiri ayizinto ezivamile zama-meteorites, kepha i-snag ukuthi akunakwenzeka ukubathola kaningi ngangokunokwenzeka.
Funda futhi: Mangaki ama-meteorites angavamile futhi angawathenga kuphi?
I-Fate protoplanet
Mayelana nokuthi kungani i-protuplaneta ayikaze izalwe, ososayensi banombono owodwa. Ulula futhi uthi into yasezulwini yavele yabhujiswa yaphenduka uthuli. Kungenzeka futhi ukuthi i-protoplanet isibe yingxenye yento ethile enkulu. Ama-bark protoplanets angaba nemininingwane ebizwa ngokuthi yi-andesit. Kuhlukaniswa ngokuqukethwe kwenani elikhulu leSilica nososayensi bakholelwa ukuthi manje ukuthola ama-protoplants kusuka ezintweni ezibonakalayo kunzima kakhulu. Futhi bonke ngoba iningi labo lanyamalala, futhi ngaphandle kokuba libe likhulu ngempela.
Ngokuvamile, ama-protoFables aphakathi kwezinto ezingaqondakali kakhulu. Ngo-2016, abacwaningi babeka ukucatshangelwa okunesibindi ukuthi elinye lama-protoplanets wake wahlangana nenyanga. Iqiniso ngukuthi kwi-satellite yeplanethi yethu kukhona i-crater enkulu kakhulu, eyaziwa ngokuthi ulwandle lwemvula. Ububanzi bawo bulingana namakhilomitha ayi-1123, ngakho-ke kubonakala kahle emhlabathini. Isikhathi eside, ososayensi babenethemba lokuthi le crather yavela ngenxa yokushayisana nge-meteorite. Kepha ososayensi baseMelika abafaki eceleni lokho kanye isikhathi eside ne-satellite, into efana ne-protoplanet evelayo yenzeka. Ungafunda kabanzi ngale mbono kulokhu.
Uma ufuna ukwazi kabanzi ngama-meteorites, ngincoma ukuhambisa kulesi sixhumanisi futhi ngifunde ngabo bonke ababaluleke kakhulu. Esikhathini le ndatshana, ngatshela ukuthi yiziphi izinhlobo ze-meteorites ezihlukene phakathi, lapho zingatholakala khona futhi zizothengisa. Ngiphinde ngithinte nengqikithi yama-meteorites amanga kanye nokushushumbisa kwabo. Ngokuvamile, kwavela okunemininingwane eminingi, ngakho ukufunda okumnandi!