TsimSecondary kev kawm ntawv thiab cov tsev kawm ntawv

Brazil minerals thiab struts nta

Lub teb chaws Brazil nyob rau hauv South America thiab occupies yuav luag lub feem ntau ntawm nws. Nyob rau hauv lub zos lub teb chaws no mas yeej los ntawm qis struts.

Lub xeev muaj ib tug ntau ntawm cov mineral deposits faib yuav luag tag nrho cov tshaj Brazil, tiam sis feem ntau ntawm lawv nyob rau hauv mountainous thaj chaw. Nyob rau hauv thiaj li yuav tau kawm nyob rau hauv kom meej lub teb cov ntaub ntawv tsim nyog geological daim ntawv qhia, uas yuav tsum tau pom nyob rau hauv cov kev yees duab.

nyem nta

Lub nyem ntawm Brazil muaj peev xwm yuav muab faib ua ob peb yam feem:

  • nqaum tsam;
  • moorland Pantanal;
  • Brazilian thiab Guiana Highlands;
  • Amazon lowlands.

Thiab tsis tsis muaj yog vim li cas peb mloog cov yam ntxwv ntawm nyem ntawm Brazil - minerals ntawm cheeb tsam no yog lub ntsiab wealth ntawm lub teb chaws thiab tus yuam sij rau nws muaj kev vam meej nyiaj txiag txoj kev loj hlob. Ib tug tsim ntawm mineral deposits yog ncaj qha nyob rau hauv tus qauv ntawm lub ntiaj teb saum npoo av.

nqaum tsam

Lub chaw ntug hiav cheeb tsam ntawm lub teb chaws - nws yog tiaj, uas yog nyob raws tus lais ntawm lub Atlantic dej hiav txwv thiab muaj xws li ib feem ntawm lub Brazilian Highlands. Nyob rau hauv sab qaum teb, txoj kev hloov los ntawm lub nras mus rau lub mountainous roob hav yog tus, tab sis rau yav qab teb ib sab yog tsiag ntawv los ntawm ceev txoj kev hloov los ntawm lub roob rau lub sands.

Nws yog ib nqi sau cia hais tias lub chaw ntug hiav cheeb tsam muaj nyob rau hauv nws pov tseg tsis tau tsuas yog cov sands thiab pas dej-pas dej, tab sis kuj Nraum. Muaj kuj nyob ntuj chaw nres nkoj thiab granite outcrops, uas yog tshwj xeeb yog nplua nuj nyob rau hauv Brazil. Minerals uas tshwm sim nyob rau hauv lub cheeb tsam xws li roj - roj thiab cov nkev.

marshland Pantanal

Pantanal hav iav nyob rau hauv sab qab teb-sab hnub poob ntawm lub Paraguay River. Lawv yog cov txaus ze rau Mato Grosso thiab Mato Grosso ua Sul. Qhov no lub teb chaws twb ua rau nyuj, raws li ntawm no los ntawm txoj kev zoo kev nyab xeeb hlob ntau ntau haiv neeg muaj tshaj nyob rau hauv lwm yam zoo xws chaw ntawm lub teb chaws.

Brazilian thiab Guiana Highlands

Brazilian Highlands heev uas nws kim heev. Nws yog nyob rau hauv sab qab teb thiab nyob rau hauv qhov chaw, occupying txog 30% ntawm lub chaw uas zoo heev ntawm Brazil. Minerals, deposits ntawm uas yog nyob rau hauv cov cheeb tsam no, yog cov feem ntau tseem ceeb. Qhov no rhinestone, hlau ores, thiab lwm tus neeg.

Rau upland tsiag ntawv los ntawm xub ntiag ntawm fertile av. Qhov siab tshaj plaws taw tes ntawm cheeb tsam no yog suav tias yog lub roob Bandeira (2890 m). Nyob rau hauv nws cov southwestern ib feem yog nyob lava toj siab, uas crosses tus dej Parana thiab nws cov tributaries - Iguazu. Lawv tsim ib tug dej tsaws tsag nyob rau hauv ib qho chaw qhov twg nws xaus toj siab.

Part ntawm lub Brazilian Highlands yog suav tias yog Guiana. Lawv sib cais los ntawm lub Amazon lowlands. Ntawm no, nyob rau hauv sab qaum teb ntawm lub xeev, Brazil, minerals hais uranium, manganese, kub, bauxite, thiab lwm tus neeg.

Mount La Neblina, nyob ntawm no, yog suav tias yog lub siab tshaj plaws taw tes tsis tsuas yog ntawm tus Highlands, tab sis tag nrho lub teb chaws, thiab nce mus rau 3014 m saum toj no hiav txwv theem.

Amazonian lowlands

Amazon lowland sawv cev txaus loj cheeb tsam. Thiab lub ib thooj ntawm nws yog nyob rau hauv lub teb chaws ntawm Brazil. Local qhov chaw nplua nuj nyob rau hauv hlau ores thiab kub, thiab nyob rau hauv lub qis nce mus txog ntawm lub watercourse Madeira sab roj thiab cov nkev teb.

Amazon yog suav tias yog qhov loj tshaj plaws dej nyob rau hauv lub ntiaj teb no, tab sis nyob rau hauv lub teb chaws ib tug ntau, thiab lwm yam lub cev ntawm cov dej, xws li dej ntws, pas dej da, uas teev qhov yooj yim uas tsis muaj-dag struts.

Brazil: minerals

Nyob rau hauv Brazil concentrated ntau minerals: ntau yam ores, zoo zoo nkauj tshooj, precious thiab semi-precious pob zeb, roj, roj, bauxite, bituminous shale, uranium ore ntawm tsawg-lub ntiaj teb hais, tin, hmoov txhuas, npib tsib xee, tungsten, baryte, zinc, tooj liab, phosphate, ua lithium. Thiab qhov no yog cia li ib tug me me daim ntawv teev.

Ib tug ntau ntawm cov av yog tseem tsis tau qoos tshawb, ces tus tshiab teb, qhib yuav luag txhua txhua lub lim tiam.

txha fuels

Roj thiab cov nkev mus rau lub cheeb tsam nyob sawv cev los ntawm me me lus nug - 136 oilfields thiab 14 gas.

Deposits ntawm cov roj shale nyob hauv lub xeev ntawm Parana. Cov kev pab cuam uas muaj los ntawm mudstone thiab limestone facies interspersed nrog basalt thiab diabase.

Lub teb chaws twb tsis muaj loj reserves ntawm thee. Lawv tag nrho cov nyiaj yog tsawg tshaj li 2 billion tonnes.

Deposit ntawm uranium ores nyob rau hauv lub xeev ntawm Bahia, Ceará, thiab lub roob ntawm Serra tsib Jacobina. Thorium thiab uranium yog mas concentrated nyob rau hauv sab qaum teb-sab hnub tuaj ntawm Brazil, nyob ze rau lub shores ntawm lub Amazon.

ore deposit

Tus nqi ntawm cov hlau ore nyob rau hauv lub teb chaws yog 17% ntawm tag nrho cov ntiaj teb no reserves. Nws yuav ua nyob rau hauv Mato Grosso nyob rau hauv lub pas dej ua ke Minas Gerais. Lub ntsiab kev pab ntawm bauxite yog paired nyob rau hauv lub Amazon phiab. Raws li kev tshawb fawb, Brazil yog ranked 1 ntawm cov teb chaws ntawm Latin America nyob rau hauv lawv cov reserves.

Tungsten ores muaj nyob rau hauv sab qaum teb-sab hnub tuaj ntawm lub teb chaws. Yeej lawv uas hais scheelite skarns. Txawm li cas los, nyob rau hauv sab qab teb ntawm Rio Grande ua Norte fossil cov ntaub ntawv yuav tsum tau ntaus nqi rau tus quartz-core hom. Nickel ore, feem ntau silicate hom, teem nyob rau hauv lub tob nyob rau hauv lub Goiás cheeb tsam.

Muaj kuj yog ib tug hydrothermal polymetallic deposits nrog hais (nyob rau hauv tag nrho cov muaj ntau tshaj 120). Nco ntsoov tias cov untold riches nyob ntawm no vim cov topography ntawm Brazil.

Minerals, uas teev tseg saum toj no, yog feem ntau pom muaj nyob rau hauv lub Ribeira Hav thiab nyob ze lub feem ntau muaj lub xeev ntawm Minas Gerais. Ib tug nplua nuj tso ntawm tin yog nyob rau hauv lub teb chaws ntawm Rondonia. Zirconium, tantalum, niobium thiab beryl ntsiab rho tawm los ntawm pegmatite ores, uas yog feeb meej nyob rau hauv São Tomé, thiab Seridozine Parelyase.

tshwj xeeb deposit

Lub teb chaws no kuj nplua nuj nyob rau hauv zoo zoo nkauj tshooj. Qhov kub tsuas kev lag luam yog booming nyob rau hauv Minas Gerais, nyob rau hauv lub qhov ncauj ntawm tus Amazon thiab nyob rau hauv Goiás. Ntawm no yog mined precious thiab semi-precious pob zeb. Nyob rau hauv Brazil, muaj tso ntawm precious opal, pob zeb siv lead ua, amethyst, pob zeb diamond, tourmaline, beryl hniav nyiaj hniav kub, kab tho, agate.

Incidentally, muaj rho liab thiab txiv kab ntxwv topaz, uas yog suav hais tias yog feem ntau tsawg - lawv lub ntsiab deposits nyob ze Ouro Preto. Feem ntau ntawm cov semi-precious ntsiab muaj nyob rau hauv Minas Gerais, raug Catarina, Bahia, Sao Paulo, Mato Grosso, Goiás.

Similar articles

 

 

 

 

Trending Now

 

 

 

 

Newest

Copyright © 2018 hmn.delachieve.com. Theme powered by WordPress.