Nzira yePolarization Inokurudzirwa muKutsvaga Zvicherwa
Kuongorora zvicherwa inzira yakaoma inosanganisira matekiniki akasiyana-siyana uye nzira dzekuwana nekuongorora zvicherwa zvinokosha. Imwe nzira ye geophysical inowanzoshandiswa mukutsvaga zvicherwa inzira yeInduced Polarization (IP). Nzira ye IP inoshandisa hunhu hwemagetsi hwematombo nezvicherwa kuona kusarongeka kuri pasi pevhu kunogona kunge kune zvicherwa zvinokosha. Chinyorwa chino chichakurukura zvakadzama nzira ye IP, misimboti yayo yekushanda, mashandisirwo ayo mukutsvaga zvicherwa, uye mienzaniso chaiyo.
Nheyo dzekutanga dzeInduced Polarization Method
Nzira yeInduced Polarization inoshandisa chiitiko chepolarization chinoitika kana munda wemagetsi ukaiswa padombo kana ivhu. Nheyo huru yenzira yeIP ndeyekuyera kuti munda wemagetsi wakakonzerwa unoramba uri pasi pevhu kwenguva yakareba sei uye nesimba rakadii mushure mekunge sosi yadzimwa. Iyi nzira yakavakirwa pakuyera maparamita maviri makuru: resistivity uye polarization effect. Resistivity inoyera kuti dombo kana zvinhu zvevhu zvinoramba sei kufamba kwemagetsi, nepo polarization effect inoyera nguva iyo munda wemagetsi wakakonzerwa unoramba uripo mushure mekunge sosi yabviswa.
Kune mhando mbiri huru dzekuyera muIP method: Time Domain (TDIP) uye Frequency Domain (FDIP). MuTDIP, munda wemagetsi unoiswa nguva nenguva wobva wabviswa, uye kuyerwa kunoitwa nguva dzose kuti vaone kudzikira kwesimba remagetsi. MuFDIP, munda wemagetsi unoshandiswa pamafrequencies akasiyana, uye shanduko muchikamu nehukuru zvinoyerwa.
Kuitwa kweInduced Polarization Survey
Ongororo dzeIP dzinowanzoitwa mumunda uchishandisa electrode array ine ma electrode maviri emagetsi uye ma electrode maviri emagetsi. Ma electrode emagetsi anoshandiswa kupinza magetsi muvhu, nepo ma electrode emagetsi anoshandiswa kuyera musiyano wemagetsi unokonzerwa nemagetsi iwayo.
1. Kuronga Ongororo Isati Yaitwa: Kuronga Ongororo Isati Yaitwa kwakakosha pakuona zvinangwa zveongororo, nzvimbo inofanira kuongororwa, marongero eelectrode, nezvimwe zvinhu zvinoongorora. Kuona zvinangwa zveongororo zvichibva padata rekutanga rezve geology kwakakosha pakuwedzera kushanda zvakanaka kweongororo uye kubudirira kwayo.
2. Kushandiswa kweElectrode Array: MaElectrode anoiswa panzvimbo dzakatarwa zvichienderana nemaitiro anodiwa. Kune magadzirirwo akasiyana-siyana emaelectrode, akadai sedipole-dipole, pole-dipole, uye Schlumberger, rimwe nerimwe rine zvakanakira zvaro uye zvarisingakoshi zvichienderana nemamiriro emunda uye zvinangwa zvekuongorora.
3. Kuwanikwa kweData: Magetsi anopfuudzwa neelectrode yemagetsi, uye musiyano wepotenti unoyerwa neelectrode yemagetsi. Data rakawanikwa rinowanzo chengetwa muchishandiso chekuyera chakadai seIP receiver.
4. Kugadziriswa uye Kududzirwa kweData: Data risina kubikwa rinobva ragadziriswa kubvisa ruzha nezvinhu zvisati zvaongororwa. Danho rekududzira rinosanganisira kugadzira mamodheru ekudzivirira uye ekudzivirira kutsanangura chimiro chepasi pevhu.
Kushandiswa kweKukonzereswa kwePolarization muKutsvaga Mineral
Nzira yeInduced Polarization ine mashandisirwo akawanda mukutsvaga mhando dzakasiyana dzezvicherwa, kusanganisira simbi sulfides, goridhe, sirivha, nedzimwe simbi dzesimbi. Heano mimwe mienzaniso yekushandiswa kwenzira dzeIP mukutsvaga zvicherwa:
1. Kuongorora Metal Sulfide: Nzira yeIP inoshanda zvikuru pakuona simbi sulfide yakachengetwa senge mhangura, nickel, uye zinc. Zvicherwa zveSulfide zvine polarization yakakwira, zvichiita kuti zvive nyore kuona uchishandisa IP surveys. Iyi nzira inobatsira vanoongorora geology kuona nzvimbo dzine minerals dzisingaonekwe pamusoro.
2. Kutsvaga Goridhe neSirivheri: Goridhe nesirivha zvakachengetwa zvinowanzobatanidzwa nezvicherwa zvesulfide. Nzira dzeIP dzinoshandiswa kuona kusarongeka kwekusagadzikana kunoratidza kuvapo kwegoridhe nesirivha zvakacherwa. Uyezve, kusanganisa nzira dzeIP nedzimwe nzira dze geophysical dzakadai semagnetic kana gravity kunogona kupa mufananidzo wakazara we mineralization.
3. Kuziva Nzvimbo Dzekuchinja: Nzira yeIP inoshandiswawo kuona nzvimbo dzekuchinja kwemvura inopisa, dzinowanzobatanidzwa nemidziyo yemineral inokosha. Nzvimbo dzekuchinja dzinowanzo kuratidza kusasimba kwakaderera uye polarization yakakwira, izvo zvinogona kuzivikanwa zvakajeka kuburikidza neongororo dzeIP.
4. Kugadzira Mepu yeMaumbirwo eGeological: Pamusoro pekuona mineralization, nzira yeIP inobatsirawo mukugadzira mepu yezvimiro zvegeological pasi pevhu zvakaita sezvikanganiso uye mafolds izvo zvinoita basa rakakosha mukudzora mineralization yezvinhu zvakachengetwa.
Mienzaniso Yechokwadi Yenyaya
Muenzaniso wakabudirira wekushandiswa kweInduced Polarization method ndeyekutsvaga dhaka remhangura muPorphyry Copper Belt muSouth America. Chirongwa chekutsvaga munzvimbo iyi chakashandisa ongororo dzeIP dzenguva kuti vaone minerals dzemhangura pakadzika. Mhedzisiro yeongororo yeIP yakaratidza kusarongeka kukuru kwepolarization munzvimbo yakanangwa, izvo zvakazosimbiswa gare gare kuburikidza nekuongorora.
Mumwe muenzaniso ndeye ongororo yeIP yekutsvaga goridhe muGreenstone Belt yeCanada. Ongororo dzeIP dzakashandiswa kuona nzvimbo dzine goridhe rakavharirwa mumatombo anoputika uye egungwa. Nekuda kweizvozvo, zvinangwa zvakawanda zvakabudirira zvakawanikwa zvine huwandu hwakawanda hwegoridhe muhupfumi.
Zvakanakira uye Zvisina Kukwana zveInduced Polarization Method
Keuntungan
1. Kunyatsoona Zvicherwa zveSulfide: Chimwe chezvakanakira zvikuru zveIP nzira iyi kugona kwayo kuona zvicherwa zvesulfide zvine polarizability yakakura.
2. Kugadzira Mepu yeZvivako Zviri Pasi Pevhu: Nzira yeIP inogona kushandiswa kugadzira mepu yezvivakwa zvepasi pevhu zvakadzama.
3. Haiparadzi: Iyi nzira inzira isingaparadzi iyo isingade kuchera kana kuchera pakutanga kwekutsvaga.
Miganhu
1. Kuvimba neSulfide Mineralization: Nzira yeIP inoshanda zvakanyanya pakushandisa mineralization ine sulfides. Kune mineralization isina sulfides, nzira iyi ingave isingashande zvakanyanya.
2. Kupesvedzera kweZvimwe Zvinhu zveGeological: Mhedzisiro yeongororo yeIP inogona kukanganiswa nekuvapo kwemvura yepasi pevhu, ivhu, kana zvimwe zvinhu zvine mukana wekupatsanurana zvakanyanya.
3. Kudzika Kwemvura: Kururama uye kugadziriswa kweongororo dzeIP kunogona kudzikira pakadzika zvakanyanya, zvichienderana nekugadzirwa kweelectrode uye simba remagetsi rinoshandiswa.
Mhedziso
Nzira yeInduced Polarization (IP) chishandiso chakakosha mukutsvaga zvicherwa, ichishandisa hunhu hwemagetsi hwematombo nezvicherwa kuona kusarongeka kuri pasi pevhu. Nekugona kwayo kuona zvicherwa zvesulfide uye kugadzira mapu ezvimiro zve geological, nzira yeIP inowedzera kukosha kukuru pakuwanikwa uye kuongororwa kwezvicherwa zvakakosha. Pasinei nezvimwe zvipingamupinyi, zvakanakira zvayo pakuona mineralization zvinoita kuti ive nzira inonyanya kufarirwa muindasitiri yekutsvaga zvicherwa. Sezvo tekinoroji nekugadzirisa data zvichifambira mberi, kushanda kweongororo dzeIP kunotarisirwa kuramba kuchivandudzwa, zvichipa mikana yakawanda yekuwana zvicherwa zvisati zvamboonekwa.
