Nā Kumumanaʻo Kumu o ka ʻImi ʻImi Kemika
He ʻāpana koʻikoʻi ka ʻimi ʻana i ka geochemical o nā ʻano ʻimi mineral o kēia au, e hoʻohana ana i nā loina a me nā ʻano hana like ʻole e ʻimi ai i nā waihona mineral kūpono i ka hoʻokele waiwai. Ke ʻeli nei kēia ʻatikala i nā loina kumu o ka ʻimi ʻana i ka geochemical, e hāʻawi ana i ka ʻike i kāna mau ʻano hana, nā noi, a me ke koʻikoʻi.
1. Hoʻolauna i ka ʻImi Kemika Honua
ʻO ka ʻimi ʻana i ka geochemical e pili ana i ka hōʻiliʻili ʻōnaehana a me ka nānā ʻana i nā laʻana pōhaku, lepo, sediment kahawai, wai, a me nā mea kanu e ʻike i nā ʻano ʻē i ka nui o nā mea kemika kikoʻī. Hiki i kēia mau ʻano ʻē ke hōʻike i ke alo o nā waihona mineral. ʻO ka pahuhopu ka kuhikuhi ʻana i nā wahi i loaʻa nā nui o nā mea i manaʻo ʻia ma mua o ka awelika, kahi e hōʻailona ai i nā kino ore hiki.
2. Ka Hoʻonohonoho ʻĀina a me ke Kaʻina Hana
ʻO ke kumumanaʻo mua o ka ʻimi ʻana i ka geochemical ka hoʻomaopopo ʻana i ke ʻano geological o ka wahi ʻimi. Pili kēia i ke aʻo ʻana i ka geology ʻāpana a me ke kūloko e ʻike ai i nā ʻano pōhaku a me nā ʻano geological i loaʻa. Pili kekahi mau minelala me nā ʻano geological kikoʻī; no ka laʻana, loaʻa pinepine ke gula ma nā kāʻei pōhaku ʻōmaʻomaʻo, ʻoiai nā waihona keleawe e pili pinepine ʻia me nā ʻōnaehana porphyry.
3. Nā ʻAnomalies Geochemical
ʻO kahi anomaly geochemical kahi ʻano o kahi element a i ʻole nā element i ʻoi aku ka kiʻekiʻe ma mua o ka pae hope ma kahi i hāʻawi ʻia. ʻO ka ʻike ʻana i kēia mau anomalies e pono ai ka hoʻomaopopo maopopo ʻana i ka geochemistry hope, ʻo ia hoʻi nā pae hoʻohui kūlohelohe o nā element i loko o ka ʻili o ka honua e pili ana i ka wahi aʻo. Hiki i nā anomalies ke kumu mua, pili pono i nā kino ore, a i ʻole ka lua, e kū mai ana mai ka hoʻopuehu ʻana o nā mineral e nā kaʻina hana e like me ka weathering a me ka erosion.
4. Ka Hōʻiliʻili a me ka Nānā ʻana i nā Laʻana
He mea koʻikoʻi ka hōʻiliʻili laʻana kūpono i ka ʻimi ʻana i ka geochemical. Pono nā laʻana e hōʻike i ka wahi e aʻo ʻia nei. Hāʻawi nā ʻano laʻana like ʻole, me ka pōhaku, ka lepo, a me nā sediments kahawai, i nā ʻike like ʻole e pili ana i nā kūlana geochemical. Hoʻokomo pū nā ʻenehana hou i ka nānā ʻana i nā laʻana biogeochemical, e like me nā mea kanu, hiki ke omo i nā mea mai ka lepo.
Ka Nānā ʻana i ka Hale Hoʻokolohua: Ke hōʻiliʻili ʻia, ua kālailai ʻia nā laʻana me ka hoʻohana ʻana i nā ʻano hana like ʻole, e like me:
– ʻAtomic Absorption Spectroscopy (AAS): Ke ana nei kēia ʻano hana i ka nui o nā metala ma ka ʻike ʻana i ka nui o ka mālamalama i omo ʻia e nā hoʻololi electron.
– Inductively Coupled Plasma Mass Spectrometry (ICP-MS): Hāʻawi ʻo ICP-MS i ka ʻike kiʻekiʻe a me ka pololei, e ʻike ana i nā mea trace ma nā ʻāpana no ka piliona (ppb) pae.
– X-ray Fluorescence (XRF): He ʻenehana wikiwiki a ʻaʻole luku ʻo XRF i hoʻohana ʻia e hoʻoholo ai i ka haku mele kumu o nā laʻana.
5. Ka wehewehe ʻikepili
ʻO ka wehewehe ʻana i ka ʻikepili geochemical e pili ana i ka loiloi helu e hoʻokaʻawale i nā anomalies mai ka walaʻau hope. Hoʻohana ʻia nā ʻano hana e like me ka geostatistics, ka loiloi multivariate, a me ka loiloi spatial e hoʻomaopopo i ka hoʻolaha ʻana o nā mea a ʻike i nā wahi hoihoi.
Nā Paepae a me nā Kumu: ʻO ka hoʻokumu ʻana i nā paepae a me nā kumu no nā mea like ʻole he mea nui ia e ʻike i nā ʻano ʻē koʻikoʻi. Pono kēia i ka hana ʻikepili koʻikoʻi a pili pinepine i ka hana ʻana i nā palapala ʻāina geochemical e hōʻike maka ana i ka hoʻolaha ʻana o nā mea kemika ma kahi o ke aʻo ʻana.
6. Nā Alahele Geochemical
ʻO nā mea Pathfinder nā mea, ʻoiai ʻaʻole pono lākou iho he waiwai, he hōʻailona ia o ke alo o nā minelala kūpono i ka hoʻokele waiwai. No ka laʻana, hiki i nā mea e like me ka arsenic, antimony, a me ka mercury ke lilo i mau mea huli ala no ke gula, no ka mea, pinepine lākou e pili ana me nā waihona gula. ʻO ka ʻike ʻana i kēia mau mea huli ala hiki ke hoʻohaiki nui i ka wahi huli.
7. Nā ʻano hana hoʻopuehu
He mea nui ka hoʻomaopopo ʻana i nā ʻano hana hoʻopuehu o nā mea i ka ʻimi ʻana i ka geochemical. Hiki ke hoʻopuehu ʻia nā mea ma o nā kaʻina hana like ʻole:
– Ka Hoʻopuehu Mekanika: Pili i ka neʻe kino ʻana o nā ʻāpana ma o ka ʻinoʻino ʻana, ka lawe ʻana e ka wai a i ʻole ka makani, a me ka waiho ʻana.
– Ka Hoʻopuehu Hydrothermal: Hana ʻia ke neʻe nā wai wela, waiwai i ka mineral ma waena o nā māwae pōhaku, e waiho ana i nā mineral i ko lākou hoʻomaʻalili ʻana.
– Ka Hoʻopuehu Biogeochemical: Pili i ka lawe ʻana a me ka hoʻohuihui ʻana o nā mea e nā meaola ola.
8. Nā Manaʻo Kaiapuni a me ka Pono
Pono ka ʻimi ʻana i ka geochemical e kūlike me nā kūlana kaiapuni a me nā loina. ʻO ka hoʻēmi ʻana i ka kapuaʻi kaiaola o nā hana ʻimi, ka mālama pono ʻana i ka ʻōpala, a me ka launa pū ʻana me nā kaiāulu kūloko he mau hana koʻikoʻi. ʻAʻole wale ka ʻimi hoʻomau e pale aku i ke kaiapuni akā hoʻoikaika pū i ka laikini kaiāulu e hana.
9. Nā Holomua i ka ʻImi ʻIke Honua
Ua hoʻoikaika nui nā holomua ʻenehana i ka ʻimi ʻana i ka geochemical. ʻO ka ʻenehana ʻike mamao, no ka laʻana, e ʻae i ka ʻike ʻana i nā loli geochemical malū ma nā wahi nui. Ua ulu pū nā mea hana polokalamu no ka nānā ʻana i ka ʻikepili a me ke kumu hoʻohālike geostatistical, e hāʻawi ana i ka wehewehe pololei o nā ʻikepili paʻakikī.
10. Nānā Hiʻohiʻona a me nā noi
Hōʻike nā noi maoli o ka ʻimi ʻana i ka geochemical i kona pono. No ka laʻana, ʻo ka loaʻa ʻana o ka waihona nickel ma Voisey's Bay ma Kanada ma muli nui o nā noiʻi geochemical piha. Pēlā nō, ʻo ka ʻimi ʻana i ka geochemical nui ma ke ʻano Carlin o Nevada ua alakaʻi i ka ʻike ʻana o kekahi o nā panalāʻau gula waiwai loa o ka honua.
Panina
ʻO ka ʻimi ʻana i ka geochemical ke kahua o ke kaʻina hana ʻike mineral. Aia kona holomua ma ka ʻike hohonu o nā hoʻonohonoho geological, ka hōʻiliʻili laʻana pololei, a me nā ʻano hana wehewehe ʻikepili hou. I ka hoʻomau ʻana o ka ʻenehana i ka holomua, e ʻoi aku ka pololei a me ka maikaʻi o ka ʻimi ʻana i ka geochemical, e hōʻoia ana i ka ʻike mau ʻana o nā kumuwaiwai mineral koʻikoʻi i nā hoʻokele waiwai o kēia wā.
He mea nui ka hoʻomaopopo ʻana a me ka hoʻopili ʻana i nā kumumanaʻo kumu o ka ʻimi ʻana i ka geochemical no kekahi geoscientist e ʻimi nei e hāʻawi i ke kahua o ka ʻimi ʻana i nā minerala a me ka pahuhopu ākea o ka hoʻomau ʻana o nā kumuwaiwai.
