Formation, Sayniska
Ma ii sheegi kartaa halka ay been ore dahab ah
waxaan aragti ahaan xisaabi kartaa, taas oo meelaha underlain by ore dahab ah, loo ogaado xaddiga kaydka ah ee beerta gaar ah, in ay go'aan ka gaarto in si loo dhiso shirkad faa'iido macdanta halkan ma joogaa? Ka dib markii baaris, qodista ceelasha qoto dheer iyo sahaminta ee miinooyinka qaadan sano, iyo in ka badan hal kun oo doolar. Ma jiraan wax sabab ah oo ku saabsan taas oo ay u maleynayaa in joogitaanka gudaha dhulka ee uurkii biraha qaali ah? Waxaa hoogtay, ma universal "Cuntadani" search kayd dahab ah aadanaha oo aan weli la Abuurtay. Inkastoo muddo dheer u maleeyay oo ku saabsan arrintan.
Gold Ore u baahan yahay dareen geologist, waxyoonay, ku dhowaad tahay. In mid ka mid Oofirna degaanka iyo dendrites ku dhowaad aqrisanin cagaha hoose, halka ka kalena uu leeyahay oo dhan calaamadaha socda, iyo dhagaxa waa raad lahayn oo ka mid ah macdanaha qaaliga ah. Si loo fahmo asalka ah ee arrintan waayo, dadku wax la doonayo ogolaanaya waxbarasho ee geedi socodka ka dhacda oo uurkii caalamka si qoto dheer ah tobanaan dhowr kiilomitir.
Laakiin aqoonta this ma noo keen u dhaw khadka hoose: search for lacag dhigaal ah oo dahab ah aragti ahaan. Chloride iyo macdanta ilo badan, laakiin birta la doonayo waxaa laga helaa ma in kasta oo iyaga ka mid ah. Waxaa la malaysan karin in walaxda oo xiiso leh noo ah ayaa la soo sameeyey korsiiya qadiimiga alluvial badaha, lagu aasay hoos kiiloomitir badan oo dhulka galay. Waxaa, sarkhaansan yihiin heerkulka sare iyo cadaadiska, waxaa la dhalaalay in magma dareere dhex dillaacyada iyo unu maray qaab bedesheen of ore ama Oofirna ah. Laakiin tan la xiqiijiyay in sayniska ma na siiso isticmaalka a la taaban karo.
Aan isku dayno si ay u tagaan jidka oo kale, si ay u aqoonsadaan liiska macdanta, kuwaas oo inta badan tagaa ore dahab. Saaxiibadayda Her yihiin macdanaha kale ee qaaliga ah - oo lacag ah, platina, palladium, iridium, ruthenium, osmium iyo rhodium. Sidoo kale in intergrowth dhow la firidhka dahab dhici yar oo sharaf leh sirdoonka: quartz, argentite, pyrite, galena, adular, albite, ametustos. Laakiin dhibaato waa in satalayt, kuwaas oo inta badan ma haysan badar dahabka hal, oo sidaas daraaddeed ma na uma shaqayn karo, isagoo ah hanuuniye in search for xudunta u tari jirtay.
macdanta Gold in Russia muddo dheer waxaa la fuliyay in kayd alluvial, in uu yahay meesha ay Leach doonaa si durdurrada dusha sare. Oo markii dalal kale oo Magacoowdeen a qalabka raadinta cusub iyo horumarinta technology, waxaan leenahay qoryaha prospector hadhay berkeddii haa shaandho. Nasiib wanaag, our meelaha furan ee kayd, kuwaas oo weli waa mid aad u badan. Markii ay daalan Urals ah, accumulations badan kayd alluvial laga helay in Siberia iyo bariga fog.
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