Ubudlelwano Phakathi Kwe-Geology Ne-Earth Physics
I-Geology kanye ne-Earth physics (geophysics) yimikhakha emibili ehlobene kakhulu ekuqondeni iplanethi esiphila kuyo. I-Geology igxile ezintweni ezakha uMhlaba, umlando wawo, kanye nezinqubo ezibumba ubuso bawo kanye nengaphakathi lawo. Okwamanje, i-Earth physics isebenzisa izimiso zomzimba ukuphenya isakhiwo, izakhiwo, kanye nokuguquguquka koMhlaba ngokulinganisa kanye nokwenza imodeli. Lokhu okubili akuhlukile: i-geology inikeza umongo kanye "nendaba" ngoMhlaba, kuyilapho i-Earth physics inikeza "amathuluzi" okuhlola ngobuningi, ukulinganisa, kanye nokudweba leyo ndaba. Kulesi sihloko, sizoxoxa ngokuthi lokhu okubili kuhlobene kanjani, izindlela ezisetshenziswayo, nokuthi kungani ukubambisana kwe-geology-geophysics kubalulekile empilweni yanamuhla.
I-Geology: Ukufunda Umlando Womhlaba
I-Geology ingacatshangwa njengesayensi yokufunda "izingobo zomlando" zoMhlaba. Amatshe, izinsalela zasendulo, izendlalelo ze-sedimentary, kanye nezakhiwo ezifana nama-fold namaphutha zigcina ulwazi mayelana nemicimbi yesikhathi esidlule—kusukela ekwakhekeni kwezintaba kanye nomsebenzi wentaba-mlilo kuya ekushintsheni kwesimo sezulu sasendulo. Ngokubuka insimu, imephu ye-geological, ukuhlaziywa kwamaminerali, kanye nokulinganisa isikhathi samadwala (isibonelo, kusetshenziswa izindlela ze-radiometric), izazi ze-geology zakha izincazelo zendlela isifunda esavela ngayo ngokuhamba kwesikhathi.
Kodwa-ke, i-geology ivame ukubhekana nemingcele: akuzona zonke izingxenye zoMhlaba ezingabonakala ngqo. Ingaphakathi loMhlaba—i-mantle kanye ne-core—alinakufinyelelwa ngqo ngaphandle kokusebenzisa isampula elinganiselwe (isb., ama-xenolith avela ku-magma) noma ukubhoboza ekujuleni okuncane kakhulu uma kuqhathaniswa ne-radius yoMhlaba. Yilapho i-geophysics iba khona umphelelisi obalulekile.
I-Earth Physics: Ukulinganisa Umhlaba Ongabonakali
I-Earth physics, noma i-geophysics, isebenzisa izinto ezibonakalayo ezifana namagagasi okuzamazama komhlaba, amasimu adonsela phansi, amasimu kazibuthe, ukugeleza kokushisa, kanye nezakhiwo zikagesi zamatshe ukuze kuhlolwe indawo engaphansi komhlaba ekujuleni okukhulu. Ngenkathi i-geology ichaza okubonakalayo nokuveziwe, i-earth physics isenza sikwazi "ukubona" izakhiwo ezifihliwe yinhlabathi, inhlabathi, namanzi olwandle, ngisho nezinkulungwane zamakhilomitha ukuya eMhlabeni.
Izindlela ze-Geophysical zisebenza ngokusekelwe ekuhlukeni kwezakhiwo zomzimba zamadwala. Isibonelo, amadwala athile angenalutho anobuningi obukhulu kunamadwala e-sedimentary, noma amadwala acebile ngamaminerali amagnetic azokhiqiza impendulo enamandla yamagnetic. Ngokubona ukuhlukahluka kulezi zakhiwo, izazi ze-geophysicists zakha amamodeli angaphansi komhlaba abese ehunyushwa kanye nolwazi lwe-geological.
Amaphuzu Abalulekile Omhlangano: Isakhiwo, Inqubo, kanye Nesikhathi
Ubudlelwano phakathi kwe-geology kanye ne-physics yomhlaba bubonakala ngokucacile ezicini ezintathu: isakhiwo, inqubo, kanye nesikhathi.
1. Isakhiwo: I-Geology imaka amaphutha, imigoqo, noma izindawo ezithile zamadwala ebusweni. I-Geophysics yandisa lokho kuhlela endaweni engaphansi komhlaba, okusivumela ukuthi siqonde i-geometry enezinhlangothi ezintathu yesitsha se-sedimentary, indlela yokucwilisa kwephutha elisebenzayo, noma ukuma kwegumbi le-magma.
2. Izinqubo: I-Geology ichaza izinqubo ezifana nokususwa kwenhlabathi, ukuqhekeka, ukwakheka kwentaba-mlilo, ukuguguleka komhlabathi, kanye nokwakheka kwenhlabathi. I-Geophysics isiza ekulinganiseni lezi zinqubo ngobuningi: ukuthi amapuleti ahamba ngokushesha kangakanani, ukuthi ukucindezeleka kusatshalaliswa kanjani oqweqweni, noma ukuthi ukugeleza kokushisa kubonisa kanjani umsebenzi we-mantle engaphansi.
3. Isikhathi: I-Geology inamandla ekwakheni kabusha imilando emide (izigidi kuya ezigidigidini zeminyaka). I-Geophysics ivame ukuba ngcono ekuqapheni "izinqubo zesikhathi sangempela" noma zesikhathi esifushane—isibonelo, ukuqapha ukuzamazama komhlaba, ukuguquka kwentaba-mlilo, kanye nezinguquko ensimini yamandla adonsela phansi ngenxa yokudluliselwa kwamandla. Uma zihlangene, sithola isithombe sokuvela koMhlaba kanye nokuguquguquka okuqhubekayo.
Amagagasi Okuzamazama: Amabhuloho Adumile Kakhulu
Isibonelo esisobala kakhulu sokuxhumana phakathi kwe-geology ne-Earth physics yi-seismology. Lapho kwenzeka ukuzamazama komhlaba, amagagasi okuzamazama komhlaba asakazeka eMhlabeni, eshintsha isivinini kanye nesiqondiso kuye ngokuthi ahamba kuphi. Kusukela ekurekhodweni kwe-seismogram, ososayensi banganquma izinhlobo zamadwala, imingcele yezendlalelo, ngisho nokuba khona kwezindawo zokuncibilika okungaphelele.
Kwabezombangazwe, lolu lwazi lusiza ukuchaza izakhiwo ze-tectonic: lapho kutholakala khona amaphutha asebenzayo, ukuthi izindawo ezingaphansi zakhiwa kanjani, nokuthi kungani isifunda sivame ukuzamazama komhlaba. Ngakolunye uhlangothi, ukuhumusha kwe-seismic kudinga ukuqonda i-geology ukuze amamodeli athuthukisiwe angabi nje ngokwezibalo kodwa futhi abonise iqiniso lamadwala nezinqubo ze-tectonic. Ngamanye amazwi, i-geophysics inikeza idatha, i-geology inikeza incazelo.
Amandla adonsela phansi kanye ne-Geology: Ukulinganisa Ubuningi Bomhlaba
Izindlela zamandla adonsela phansi zilinganisa ukushintshashintsha okuncane ekusheshiseni kwamandla adonsela phansi ezindaweni ezahlukene. Lokhu kushintshashintsha kungabangelwa izinguquko ekuminyaneni kwamadwala angaphansi komhlaba. Isibonelo, ukungena kwe-igneous okunobukhulu obuphezulu kungadala i-anomaly enhle yamandla adonsela phansi, kuyilapho i-sedimentary basin ebanzi, enobukhulu obuphansi ingadala i-anomaly engemihle.
Ku-geology, idatha yamandla adonsela phansi iwusizo kakhulu ekudwebeni ama-sedimentary basin (okubalulekile ekuhlolweni kwamanzi angaphansi komhlaba, uwoyela, kanye negesi), ukuthola izakhiwo ze-salt dome, noma ukulinganisa ukujiya kwe-crustal. Kodwa-ke, ukuchazwa kwamandla adonsela phansi akuhlukile: amamodeli amaningi ahlukene angakhiqiza ama-anomalies afanayo. Ngakho-ke, ulwazi lwe-geology njengezinhlobo zamadwala, idatha yemithombo, kanye namamephu omhlaba kubalulekile ukuze kuncishiswe amamodeli angaba khona.
Ubuqili: Izinkomba Zomlando Wedwala Nowe-Tectonic
Izindlela zikagesi zilinganisa ukwehluka kwensimu kazibuthe yoMhlaba ebangelwa amatshe kazibuthe. Amatshe e-igneous, ikakhulukazi lawo aqukethe i-magnetite, avame ukubonisa izimpendulo ezinamandla zikagesi. Ukuhlolwa kukagesi kungasiza ekuboneni imingcele yamadwala, izindlela zokungena, ngisho nezakhiwo ezingaphansi komhlaba ngaphansi kwezihlabathi.
Emhlabeni wonke, i-paleomagnetism—ucwaningo lwamarekhodi kazibuthe emadwaleni—iwubufakazi obubalulekile benkolelo-mbono ye-plate tectonics. I-Geology inikeza amasampula edwala kanye nomongo we-stratigraphic, kuyilapho i-physics yomhlaba inikeza ukulinganisa kazibuthe kanye namasu okulingisa. Umphumela uba ukuqonda ukukhukhuleka kwezwekazi, ukwakheka kolwandle, kanye nokwakhiwa kabusha kwezikhundla ze-plate zangaphambilini.
Izindlela Zikagesi Nezikagesi: Amanzi Angaphansi Komhlaba
Izindlela ze-geoelectric kanye ne-electromagnetic zisebenzisa umehluko ekumelaneni namadwala. Amanzi angaphansi komhlaba, uketshezi olusebenzisa amanzi ashisayo, noma izindawo zobumba ngokuvamile zinokumelana okuphansi, kuyilapho amatshe omile, amakhulu evame ukuba nokumelana okukhulu. Ku-geology yemvelo kanye ne-hydrogeology, lezi zindlela zivame ukusetshenziswa ukumaka imingcele yamanzi angaphansi komhlaba, ukungcola, noma imingcele yamanzi anosawoti-amanzi ahlanzekile ezindaweni ezisogwini.
Uma kukhulunywa ngezintaba-mlilo kanye namandla okushisa komhlaba, izindlela zokumelana nazo zingabona izindawo zokuguqulwa kwamanzi kanye nezindlela zokushisa kwamanzi. Izazi ze-geology zibe sezichaza ukuthi lezi zindawo zihlotshaniswa nezinhlelo zamaphutha, amatshe ambozwe, noma izindawo zokugcina amanzi ezizoba khona emhlabeni.
Izicelo Zangempela: Kusukela Ekuncishisweni Kwezinhlekelele Kuya Emandleni
Ukubambisana phakathi kwe-geology kanye ne-physics yomhlaba kunomthelela oqondile empilweni yansuku zonke. Ekuncishisweni kwezinhlekelele, imephu ye-geological yamaphutha asebenzayo ihlanganiswa nedatha ye-seismic kanye ne-geodetic (isb., i-GPS kanye ne-InSAR) ukuqonda ukuzamazama komhlaba okungenzeka kanye nokunyakaza komhlaba. Ezintabeni-mlilo, ukubonwa kwe-geological komlando wokuqhuma kuhlanganiswa nokuqapha kwe-seismic, ukuguquka, kanye negesi ukuze kubikezelwe ukwanda komsebenzi.
Emkhakheni wamandla nezinsizakusebenza, ukuhlola uwoyela negesi kusebenzisa ukushukuma komhlaba okubonakalayo ukuze kudwetshwe imephu yendawo engaphansi komhlaba, kodwa ukuhumusha kudinga ukuqonda i-stratigraphy kanye ne-petroleum geology. Ezimayini, idatha yamagnetic kanye ne-gravity isiza ukuhlonza imizimba ye-ore, kuyilapho i-geology inquma izinhlobo zediphozithi kanye nezinqubo zokwakheka. Ngamandla e-geothermal, i-geophysics idweba izakhiwo kanye noketshezi, kuyilapho i-geology iqinisekisa ukuthi imodeli iyahambisana ne-lithology kanye nokuguqulwa.
Kungani Lobu Buhlobo Bungenakuhlukaniswa?
I-Geology kanye ne-geophysics kuyizinhlangothi ezimbili zomzamo ofanayo: ukuqonda uMhlaba ngokuphelele. I-Geology ihamba phambili ekubukeni okuqondile, ekuchazeni umlando, kanye nomongo wezinto ezibonakalayo. I-Geophysics ihamba phambili ekulinganisweni okungaqondile, ekuboniseni inani, kanye nekhono lokubona okujulile ngaphansi kobuso. Uma lokhu kokubili kuhlanganiswa, sithola ukuqonda okuphelele, okunembe kakhulu, nokusebenzayo ukubhekana nezinselele zomhlaba wangempela—kusukela ezinhlekeleleni zemvelo kuya ezinkingeni zamanzi kuya ezidingweni zamandla.
Ekugcineni, uMhlaba uyisimiso esiyinkimbinkimbi esisebenza kuzo zonke izikali: kusukela kumaminerali amancane kuya kuma-tectonics e-continental plate, kusukela ezinqubweni ezenzeka ngemizuzwana efana nokuzamazama komhlaba kuya ekuziphendukeleni kwemvelo okuthatha izigidi zeminyaka. Ukuze kuqondwe, kuhlolwe, futhi kudwetshwe lezi zinhlelo, i-geology kanye ne-physics kumele kusebenze ndawonye—kuhlolwe, kuqiniswe, futhi kuhambisane.
