Ua ʻike kekahi hui o nā mea noiʻi mai ke Kulanui ʻo Curtin, ke Kulanui o Western Australia, a me ke Kulanui o Geoscience Kina e hiki ke hopu ʻia nā wahi gula liʻiliʻi.pyrite i loko, e hoʻonui ana i ke gula a naʻaupō ma mua o kona inoa.
Inhe pepapaʻi ʻia ma ka puke paiKe kālaihonua,hōʻike ka poʻe ʻepekema i kahi loiloi hohonu e hoʻomaopopo maikaʻi i ka wahi mineralogical o ke gula paʻa i ka pyrite.ʻO kēia loiloi - ke manaʻoʻiʻo nei lākou - hiki ke alakaʻi i nā ʻano hana hoʻoneʻe gula maikaʻi.
Wahi a ka hui, ʻaʻole i ʻike mua ʻia kēia ʻano gula 'ike ʻole' a ʻike wale ʻia me ka hoʻohana ʻana i kahi mea ʻepekema i kapa ʻia ʻo ka ʻimi atom.
Ma mua, ua hiki i nā mea lawe gula ke loaʻa ke gula i lokopyritee like me nā nanoparticles a i ʻole he pyrite-gold alloy, akā ʻo ka mea a mākou i ʻike ai he hiki ke hoʻokipa ʻia ke gula i nā defects kristal nanoscale, e hōʻike ana i kahi ʻano gula 'ike ʻole' hou, "i ʻōlelo ʻia e ka mea noiʻi alakaʻi ʻo Denis Fougerouse ma kahi ʻōlelo.
Wahi a Fougerouse, ʻoi aku ka deformed o ke aniani, ʻoi aku ka nui o ke gula i paʻa i nā hemahema.
Ua wehewehe ka ʻepekema ua mālama ʻia ke gula i nā defects nanoscale i kapa ʻia ʻo dislocations - hoʻokahi haneli kaukani ka liʻiliʻi ma mua o ka laula o ka lauoho kanaka - a ʻo ia ke kumu e ʻike ʻia ai me ka hoʻohana ʻana i ka tomograph probe atom.
Ma hope o ko lākou ʻike ʻia ʻana, ua hoʻoholo ʻo Fougerouse a me kāna mau hoa hana e ʻimi i kahi kaʻina e hiki ai iā lākou ke unuhi i ka metala makamae me ka hoʻohana ʻana i ka ikehu liʻiliʻi ma mua o nā ʻenehana oxidizing kaomi kuʻuna.
ʻO ka leaching koho, e pili ana i ka hoʻohana ʻana i ka wai e hoʻoheheʻe koho i ke gula mai ka pyrite, ʻo ia ke koho maikaʻi loa.
"ʻAʻole wale nā dislocations e hoʻopaʻa i ke gula, akā ke hana nei lākou e like me nā ala wai e hiki ai i ke gula ke 'leached' me ka ʻole o ka pili ʻana i ka pyrite holoʻokoʻa," wahi a ka mea noiʻi.
Ka manawa hoʻouna: Iune-29-2021