Ua ʻike ʻia ka meteorite Erg Chech 002 ma ka wao nahele ʻo Sahara i 2020 a ua manaʻo ʻia ʻo ia kekahi o nā pōhaku kahiko loa.
ʻAʻole hiki i kā lākou noiʻi ʻana ke hōʻike hou aku e pili ana i ke ʻano o ke ao o ka lepo a me ke kinoea i hoʻokumu i ka Pūnaehana Solar, akā e pili ana hoʻi i ka loaʻa ʻana o ka Honua.
ʻO ke ala mai Erg Chech 002 a i ka honua honua
I ka makahiki 2020, ua ʻike ʻia ka meteorite ʻo Erg Chech ma ka wao nahele ʻo Sahara, ke aʻo ʻia nei a manaʻo ʻia ʻo ia kekahi o nā pōhaku ākea kahiko loa, mai 4.500 biliona makahiki.
Wahi a ka poʻe noiʻi, ʻo ka meteorite kahi ʻāpana o kahi protoplanet i hana ʻia i ka wā ʻōpiopio loa o ka Solar System, ma kahi o 4.500 biliona makahiki i hala.
He ʻano like ʻole kēia protoplanet, no ka mea, ua lawa ka nui i loaʻa kahi ʻōpala, ʻaʻahu, a me ke kumu, a ua hoʻopaʻa inoa pū kekahi i ka hana seismic a me ka tectonic. Ua luku ʻia ʻo ia e ka hui ʻana me nā kino lani ʻē aʻe a ua hoʻopuehu ʻia kona mau ʻāpana ma ka lewa, a hiki i ka Honua.
Hiki i ka haʻawina Erg Chech ke wehewehe i ke kumu o ka Pūnaehana Lā a hāʻawi i nā hōʻailona e pili ana i ka Honua
Mai kona loaʻa ʻana, ʻo ka Erg Chech meteorite ke kumuhana o ka noiʻi kikoʻī. I kēia manawa, ma kahi kikoʻī kikoʻī, i hana ʻia e kahi hui o nā mea noiʻi Australia, ua hōʻoia ʻia ka hele ʻana o ka radioactive isotope aluminika-26 i kēia meteorite.
No ka contextualize, he mea nui e wehewehe i ka hana ʻia ʻana o kēia isotope i ka wā o ka pahū supernova. ʻO kona noho ʻana ma Erg Chech 002 e hōʻike ana ua hoʻoheheʻe ʻia ka Solar System me nā mea radioactive mai nā hōkū e pahū ana i ka hopena o ko lākou hoʻokumu ʻana. He ʻike kūpono kēia, ʻoiai ʻo ka hāʻawi ʻana i kēia isotope he ʻano enigma i ka Pūnaehana Lā.
Ma kekahi ʻaoʻao, hiki i ka aluminika-26 ke hāʻawi i kekahi mau hōʻailona e wehewehe i ka hoʻokumu ʻana o ka honua honua. No ka mea he mea nui kēia isotope i ke kaʻina hana e hoʻolako i ka wela, ma o ka palaho radioactive, e hana i nā kino honua me nā ʻāpana o loko. E like me ka honua honua.
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