Dabaru na Tsarin Samfurin Ƙasa da Ƙasa tare da Geophysics
Geophysics wani reshe ne na kimiyyar ƙasa wanda ke amfani da ƙa'idodin kimiyyar lissafi da hanyoyin lissafi don nazarin halaye da tsarin Duniya. Ɗaya daga cikin manyan aikace-aikacen ilimin kimiyyar ƙasa shine ƙirar ƙasa, wanda yake da mahimmanci a fannoni daban-daban kamar binciken albarkatun ƙasa (mai, iskar gas, da ma'adanai), rage bala'o'i na halitta, da kuma kula da muhalli. Wannan dabarar tana amfani da bayanai daga ma'aunin zahiri a ko kusa da saman don samar da bayanai game da tsari da abun da ke cikin ƙasa. Wannan labarin zai yi cikakken bita kan dabarun ƙirar ƙasa ta amfani da ilimin kimiyyar ƙasa.
Dabaru na Geophysics don Tsarin Tsarin Ƙasa
1. Tunani da Rarrabuwar Girgizar Ƙasa
Tunani da kuma rabe-raben girgizar ƙasa sune manyan dabarun binciken hydrocarbon. da kuma binciken gine-ginen ƙasa. hanyar girgizar ƙasa A cikin tunani, raƙuman girgizar ƙasa suna fitowa daga tushen girgizar ƙasa (kamar ƙaramin fashewa ko bugun guduma) kuma suna nuna baya ta hanyar layukan duwatsu daban-daban a cikin gudu daban-daban da kuma tasirin sauti. Sannan ana kama raƙuman da aka nuna ta hanyar na'urori masu auna sigina (geophones ko hydrophones) sannan a yi rikodin su. Ana sarrafa waɗannan rikodin zuwa bayanan girgizar ƙasa waɗanda ke nuna tsarin ƙarƙashin ƙasa. A gefe guda kuma, refraction na girgizar ƙasa ya ƙunshi auna yadda raƙuman girgizar ƙasa ke lanƙwasa (refracted) yayin da suke tafiya ta cikin layuka a cikin gudu daban-daban. Wannan hanyar tana da tasiri don zana taswirar zurfin layuka da duwatsu masu zurfi.
2. Magnetic
Ana amfani da hanyoyin magnetic don gano canje-canje a cikin fata Filin maganadisu na duniya wanda aka samar ta hanyar bambance-bambancen halayen maganadisu na duwatsun ƙarƙashin ƙasa. Ana amfani da wannan hanyar gabaɗaya wajen binciken ma'adinai., nazarin aman wuta, da kuma bincike kan tsarin ƙasa na yanki. Ana yin ma'auni ta amfani da na'urorin auna maganadisu waɗanda za a iya sanyawa a ƙasa, a cikin iska (magnetizes na iska), ko a ƙarƙashin ruwa. Ana sarrafa bayanan maganadisu don gano kasancewar jikin ma'adinan sulfide da sauran manyan tsarin ƙasa.
3. Nauyi
Ana amfani da ma'aunin nauyi don gano bambancin yawa a cikin duwatsun ƙarƙashin ƙasa. Wannan hanyar ta dogara ne akan ƙa'idar cewa filin nauyi na Duniya ya bambanta dangane da rarraba nauyin dutse a ƙarƙashin ƙasa. Ana gano rashin daidaiton nauyi ta amfani da na'urori masu auna nauyi masu mahimmanci a cikin filin sannan a yi nazari don samar da bayanai game da tsarin ƙasa da samfurin ƙasa. Sau da yawa ana amfani da wannan dabarar don binciken hydrocarbon, binciken ƙasa, da nazarin tsarin ɓawon ƙasa.
4. Geoelectric (Resistive)
Geoelectricity, ko juriya, hanya ce da ke auna juriyar lantarki na duwatsun ƙarƙashin ƙasa. Wannan hanyar tana aiki ta hanyar wucewar wutar lantarki ta cikin electrodes da aka saka a cikin ƙasa da kuma auna bambancin da ke tsakaninsu. Ana sarrafa bayanan juriya da aka samu don samar da wani ɓangaren karya wanda ke nuna bambance-bambancen juriyar ƙarƙashin ƙasa. Wannan dabarar tana da matuƙar tasiri a cikin binciken ruwan karkashin kasa, nazarin gurɓatar ƙasa, da kuma taswirar gine-ginen ƙasa na kusa da saman.
5. Na'urar lantarki
Hanyoyin lantarki suna amfani da bambance-bambance a cikin halayen lantarki don taswirar tsarin ƙasa. A cikin binciken lantarki, ana fitar da filayen lantarki kuma ana auna martanin duwatsun ƙasa. Dabaru da aka saba amfani da su sun haɗa da hanyoyin Transient Electromagnetic (TEM) da Magnetotellurics (MT). Sannan ana fassara bayanan da aka samu don gano layukan duwatsu masu bambancin juyi, suna taimakawa wajen binciken ma'adinai da nazarin tsarin ƙasa.
Matakan Samfurin Ƙasa
1. Tarin Bayanai
Mataki na farko a cikin tsarin ƙirar ƙasa a ƙarƙashin ƙasa shine tattara bayanai daga filin. Wannan bayanan na iya zama ma'aunin girgizar ƙasa, maganadisu, nauyi, ko ma'aunin ƙasa da aka samu ta hanyar binciken filin ta amfani da kayan aikin ƙasa masu dacewa.
2. Sarrafa Bayanai
Sannan ana sarrafa bayanai marasa inganci da aka samu daga filin don cire hayaniya da kuma samun bayanai masu haske. Sarrafa bayanai na girgizar ƙasa Misali, ya ƙunshi matakai kamar tacewa, tara bayanai, da ƙaura don samun kyakkyawan hoto na tsarin ƙasa. A cikin bayanan maganadisu da nauyi, hanyoyin sarrafa bayanai sun haɗa da gyaran tafiye-tafiye, gyaran yanayin ƙasa, da kuma raba abubuwan da ba su dace ba na yanki da na gida.
3. Juya Bayanan
Juyawa tsari ne na canza bayanan da aka auna zuwa samfurin ƙasa wanda ke nuna rarrabawar halayen zahiri (kamar saurin raƙuman girgizar ƙasa, yawansu, ko juriyarsu) na dutsen. Tsarin juyawa yawanci ya ƙunshi amfani da algorithms na ingantawa da kuma samfurin gaba don daidaita bayanan da aka auna akai-akai da hasashen samfurin.
4. Fassara
Masana kimiyyar ƙasa da masana kimiyyar ƙasa ne ke fassara sakamakon juyewar bayanai don samun fahimtar tsari da halayen ƙasa. Wannan fassarar ta haɗa da gano muhimman fasalulluka na ƙasa kamar lahani, naɗewa, layukan ma'adinan hydrocarbon, ruwa, da kuma ma'adanai.
5. Tabbatar da Samfuri da Tabbatarwa
Ana buƙatar a tabbatar da samfurin da aka samar tare da ƙarin bayanai ko wasu nau'ikan bincike don tabbatar da daidaito da daidaito. Wani lokaci ana amfani da haƙoran bincike don tabbatar da samfurin ƙasa da aka samar daga nazarin ilimin ƙasa. Wannan bayanan haƙo na iya samar da bayanai kai tsaye game da nau'in dutse, shekaru, da sauran halaye na zahiri waɗanda za a iya kwatanta su da sakamakon samfurin ilimin ƙasa.
Fa'idodi da Kalubale a Tsarin Tsarin Ƙasa
Keuntungan
1. Ba ya lalatawa: Dabaru na ilimin ƙasa ba sa lalatawa, suna ba da damar gudanar da bincike ba tare da buƙatar haƙa ko tono ƙasa da zai iya dagula muhalli ba.
2. Ingancin Farashi: idan aka kwatanta da hanyoyin haƙa kai tsaye, dabarun ilimin ƙasa sun fi rahusa kuma sun fi sauri wajen samun bayanai na farko game da ƙasa.
3. Faɗin Rufewa: Dabaru na ilimin ƙasa suna ba da damar yin bincike kan manyan yankuna cikin ɗan gajeren lokaci, suna ba da cikakken hoto na albarkatun ƙasa ko haɗari masu yuwuwa.
4. Zurfin Bayanai: Wasu hanyoyi na iya samar da bayanai game da zurfafan layuka, waɗanda ke da wahalar isa ta hanyar hanyoyin gargajiya.
Kalubale
1. Iyakantaccen ƙuduri: Wasu dabarun ilimin ƙasa ba za su iya samar da babban ƙuduri ba, musamman a zurfin zurfi.
2. Fassarar Rashin Da'a: Bayanan ilimin ƙasa galibi ba su da tabbas kuma suna buƙatar fassarar da ta dace don guje wa kuskuren fahimta.
3. Dogaro da Yanayin Fili: Ingancin dabarun ilimin ƙasa ya dogara sosai akan yanayin filin kamar nau'in dutse, yanayin ƙasa, da kuma kasancewar hayaniya daga wasu tushe (kamar kayayyakin more rayuwa na ɗan adam).
Kammalawa
Tsarin zane a ƙarƙashin ƙasa na Geophysical kayan aiki ne mai mahimmanci ga masana'antu daban-daban da binciken ƙasa. Ta hanyar haɗa hanyoyi da yawa na ilimin ƙasa, za mu iya samun cikakken hoto game da tsari da halayen duwatsun ƙarƙashin ƙasa, wanda yake da mahimmanci ga binciken albarkatun ƙasa , rage bala'i, da kuma kula da muhalli. Duk da haka, nasarar waɗannan samfuran ya dogara ne sosai akan tattara bayanai daidai, sarrafa su yadda ya kamata, da kuma fassarar ƙwararru. Tare da ci gaba da ci gaban fasaha da hanyoyin nazari, makomar ƙirar yanayin ƙasa tana da haske da lada.
