I roto i ngā mara matatau pēnei i te hanga maramara haurua-ira me te tirotiro whatu tino tika, ko ngā pūoko tino tika te taputapu matua mō te tiki raraunga matua. Heoi, ko ngā taiao hikohiko uaua me ngā āhuatanga ā-tinana kore pumau ka arahi pinepine ki ngā raraunga ine hē. Ko te turanga karāhe, me ōna āhuatanga kore-aukume, kua tiakina me te pumau ā-tinana tino pai, ka hanga he taiao ine pono mō te pūoko.
Ka tapahia e te āhua kore-aukume te pūtake o te pokanoa
He tino tairongo ngā pūoko tino tika pērā i ngā pūoko nekehanga ā-whakaoho me ngā tauine aukume ki ngā panonitanga o te papa aukume. Ka taea e te aukume ā-roto o ngā turanga whakarewa tuku iho (pērā i te maitai me te koranu konumohe) te hanga i tētahi papa aukume whakararuraru huri noa i te pūoko. I te wā e whakahaerehia ana te pūoko, ka taunekeneke te papa aukume whakararuraru o waho ki te papa aukume o roto, ka ngāwari ai te whakaputa i ngā pekapeka raraunga ine.
Ko te karāneti, he toka mura tūturu, he mea tito mai i ngā kohuke pēnei i te quartz, te feldspar me te mika. Nā tōna hanganga o roto ka kitea kāore he aukume i roto. Tāutahia te pūoko ki runga i te turanga karāneti hei whakakore i te pokanoa aukume o te turanga mai i te pakiaka. I roto i ngā taputapu tino tika pēnei i ngā karu hikohiko me te aukume karihi, ka whakarite te turanga karāneti kia hopu tika te pūoko i ngā huringa ngawari o te mea e whaia ana, kia kore ai e puta he hapa ine i puta mai i te pokanoa aukume.
He rite ngā āhuatanga hanganga ki te parenga hikohiko
Ahakoa kāore te karāneti i te kaha tiaki hiko pērā i ngā konganuku, ka taea hoki e tōna hanganga ā-tinana ahurei te whakaiti i te wawaotanga hikohiko. He mārō te kakano o te karāneti, ā, he matotoru te hanganga. Ko te whakaritenga honohono o ngā tioata kohuke ka hanga he ārai ā-tinana. Ina horapa ngā ngaru hikohiko o waho ki te turanga, ka mimitihia tetahi wāhanga o te pūngao e te tioata ka huri hei pūngao wera, ā, ka whakaatahia tetahi wāhanga ka marara ki te mata tioata, ka whakaiti i te kaha o ngā ngaru hikohiko e tae atu ana ki te pūoko.
I roto i ngā mahi whaihua, ka honoa ngā turanga karāhe ki ngā kupenga ārai whakarewa hei hanga hanganga hiato. Ka āraia e te mata whakarewa ngā ngaru hiko auau-tiketike, ā, ka whakaitihia e te karāhe te pokanoa toenga me te whakarato tautoko pumau. I roto i ngā awheawhe ahumahi kī tonu i ngā kaitahuri auau me ngā motuka, mā tēnei whakakotahitanga ka taea e ngā pūoko te mahi pumau ahakoa i roto i te taiao hiko kaha.
Whakapūmau i ngā āhuatanga ā-tinana, ā, whakarei ake i te pono o te ine
He tino iti te tauwehenga whānui wera o te karāhe ((4-8) ×10⁻⁶/℃ anake), ā, he iti noa te rerekētanga o tōna rahi ina rerekē te pāmahana, kia mau tonu ai te tūnga tāutanga pūoko. Ka taea e tana mahi whakaiti pai te mimiti tere i ngā wiri taiao me te whakaiti i te awe o ngā raruraru miihini ki ngā inenga. I roto i te ine whatu tika, ka taea e te turanga karāhe te ārai i te rerekētanga ara whatu i puta mai i te whakarerekētanga wera me te wiri, kia tika ai te whakahokinga o ngā raraunga inenga.
I roto i te horopaki o te kimi matotoru o te anga haurua-haurua, i muri i te tango a tētahi umanga i te turanga karāhe, ka heke te hapa ine mai i te ±5μm ki roto i te ±1μm. I roto i te tirotiro āhua me te tūnga o ngā wāhanga rererangi, kua pai ake te whakahokinga raraunga mā te pūnaha ine e whakamahi ana i te turanga karāhe mā te neke atu i te 30%. E whakaatu katoa ana ēnei take he nui te whakarei ake a te turanga karāhe i te pono o te ine o ngā pūoko tino tika mā te whakakore i te pokanoa hikohiko me te whakau i te taiao ā-tinana, ka waiho hei wāhanga matua e kore e taea te whakakapi i roto i te mara ine tika o ēnei rā.
Wā tuku: Mei-20-2025