Ukubaluleka Kwezifundo Ze-Paleontological ku-Geology
I-Paleontology, ukutadisha impilo yasendulo ngokusebenzisa izinsalela zamathambo, iyisisekelo se-geology. Le nsimu yesayensi ixhumanisa i-biology kanye ne-geology, inikeza ukuqonda ngomlando wokuphila eMhlabeni. Ukubaluleka kwezifundo ze-paleontology ngaphakathi kwe-geology akunakuphikiswa. Kusiza ekuqondeni umlando woMhlaba, izinqubo zokuziphendukela kwemvelo, izimo zezulu zesikhathi esidlule, kanye nezindawo ezizungezile, ngaleyo ndlela kwazisa izibikezelo mayelana nezinguquko ze-geological neze-biological zesikhathi esizayo. Ngaphezu kwalokho, inezinhlelo ezisebenzayo emikhakheni efana nokuhlola uwoyela negesi. Lesi sihloko sizohlola ukubaluleka okunezinhlangothi eziningi kwezifundo ze-paleontological ngaphakathi kwe-geology.
Ukwembula Umlando Womhlaba
Izifundo ze-paleontology zibaluleke kakhulu ekwakheni kabusha umlando we-geological weplanethi yethu. Izinsalela zinikeza irekhodi elibonakalayo lempilo yangaphambilini kanye nezindawo ezidlule, okuvumela izazi ze-geology ukuthi zihlanganise izinguquko ngokwesilinganiso sesikhathi se-geological. Ngokuhlola ukusatshalaliswa nokulandelana kwezinsalela emadwaleni ase-sedimentary, ososayensi bangasungula iminyaka ehlobene yezingqimba zamadwala ngokusebenzisa i-biostratigraphy. Le nqubo isiza ekuchazeni ukulandelana kwezenzakalo ze-geological neze-biological, kwakhiwe umugqa wesikhathi womlando woMhlaba.
Umlando wezinsalela, naphezu kokungapheleli kwawo, uwumlando ophawulekayo wokuvela kokuphila. Izenzakalo ezibalulekile, njengokuqhuma kweCambrian, okwabona ukuhlukahluka okusheshayo kwezinhlobo zokuphila eminyakeni engaba yizigidi ezingu-541 edlule, zilotshwe ngezinsalela. Ngokufanayo, izehlakalo zokuqothulwa okukhulu, okuhlanganisa ukuqothulwa kwePermian-Triassic kanye neCretaceous-Paleogene, okwaqeda inani elikhulu lezinhlobo, zibonakala ngokushintsha okungazelelwe kumlando wezinsalela. Izehlakalo ezinjalo zinikeza izilinganiso ezibalulekile emlandweni woMhlaba futhi zibalulekile ekuqondeni izinqubo zokuziphendukela kwemvelo eziye zabumba impilo.
Ukuqonda Kokuziphendukela Kwemvelo
Ucwaningo lwezinsalela lunikeza ukuqonda okujulile ngomlando wokuziphendukela kwemvelo kwezinto eziphilayo. Ngokuhlola isimo sezinsalela, izazi ze-paleontologists zingaphetha ngokuthi izinhlobo zezinto eziphilayo zishintshe kanjani ngokuhamba kwesikhathi, zavumelana nezimo zazo, futhi zahlukahluka kanjani. Lokhu kuqonda kuyisisekelo sebhayoloji yokuziphendukela kwemvelo.
Isibonelo, ukuguquka kusuka ezinhlanzini kuya kuma-tetrapod (izilwane ezinemilenze emine) kubhalwe phansi ngezinsalela ezibonisa izici eziphakathi. Izinsalela ze-Tiktaalik ezifakwe izinsalela, uhlobo olwaluphila eminyakeni engaba yizigidi ezingu-375 edlule, zibonisa izici ezifana nezezinhlanzi kanye ne-tetrapod, okunikeza isithombe salesi sinyathelo esibalulekile sokuziphendukela kwemvelo. Ukutholwa okunjalo kubonisa isimo esishintsha kancane kancane, esishintshayo sezinguquko zokuziphendukela kwemvelo futhi kusekela inkolelo-mbono yokuziphendukela kwemvelo ngokukhetha kwemvelo.
Ngaphezu kwalokho, izifundo ze-paleontology zikhanyisa imvelaphi yezinhlobo zesimanje. Izinsalela zama-hominin okuqala, njenge-Australopithecus afarensis (eyaziwa ngokuthi “uLucy”) kanye ne-Homo habilis, zinikeza ubufakazi obubalulekile bokuqonda ukuvela komuntu. Zisiza ekulandeleni uhlu lozalo lokuvela kanye nokuzivumelanisa nezimo okwaholela ekuveleni kwama-Homo sapiens.
Ukuqonda Izimo Zezulu Nezindawo Ezidlule
I-Paleontology idlala indima ebalulekile ekwakhiweni kabusha kwe-paleoenvironmental kanye ne-paleoclimatic. Ama-fossils ayizikhombisi ezibalulekile zokuhumusha isimo sezulu esidlule, izimiso zemvelo, kanye nezinguquko zemvelo. Ukuba khona, ukungabikho, noma ukwakheka kweqoqo elithile lama-fossil kungabonisa izimo ezithile zemvelo.
Isibonelo, ucwaningo lwe-foaminifera (izinto eziphilayo zasolwandle ezincane kakhulu) ezisekelweni ze-sediment yolwandle lube negalelo elikhulu ekwakheni kabusha amazinga okushisa olwandle kanye nomthamo weqhwa odlule. Lawa ma-microfossils angasetshenziswa ukuthola amazinga olwandle adlule, amaphethini okujikeleza kolwandle, ngisho namazinga e-CO2 asemkhathini. Ulwazi olunjalo lubalulekile ekuqondeni ukuguquguquka kwemvelo kwesimiso sezulu soMhlaba kanye nezimpendulo zaso ekuphoqelelweni kwangaphandle.
Ngokufanayo, izinsalela zezitshalo, okuhlanganisa impova kanye nokuvela kwamaqabunga, kunikeza ukuqonda ngezindawo zomhlaba kanye nokushintsha kwesimo sezulu eminyakeni eyizigidi. Ukuba khona kwezinhlobo ezithile zezitshalo kungabonisa ukusabalala kwezindawo ezahlukene zesimo sezulu, njengezimo ezishisayo, ezifudumele, noma ezomile, ezindaweni ezahlukene emlandweni woMhlaba.
Izicelo Eziwusizo Ekuhloleni Izinsizakusebenza
Izifundo ze-paleontology zinezindlela ezisebenzayo ngale kocwaningo lwezemfundo, ikakhulukazi embonini kawoyela negesi. Izinsalela zisebenza njengamathuluzi abalulekile ekuhloleni nasekusetshenzisweni kwemithombo ye-hydrocarbon.
Ama-microfossils, njenge-foraminifera kanye nama-conodonts, asetshenziswa ku-biostratigraphy ukuze ahlobanise futhi athole usuku lwezendlalelo zamadwala ekuhlolweni komhlaba ongaphansi komhlaba. Lokhu kuvumela izazi ze-geology ukuthi zibikezele ukuba khona kwama-oyili negesi. Isibonelo, ukuhlonza ukuhlanganiswa kwezinsalela ezithile emaceleni amadwala kungabonisa izindawo zokugcina izinto ezivumela ukwakheka kwezinsalela ze-hydrocarbon.
Ngaphezu kwalokho, ucwaningo lwamadwala ase-sedimentary acebile ngezinto eziphilayo, njenge-shales, avame ukuqukethe izinsalela eziningi ze-microorganisms ezifakwe emafossil, lubalulekile ekuqondeni amadwala avela kuma-hydrocarbon. Uhlobo kanye nokulondolozwa kwezinsalela ngaphakathi kwala madwala kunganikeza ulwazi mayelana nokuvuthwa kokushisa kanye namathuba okukhiqizwa kwe-hydrocarbon.
Ukwazisa Amasu Okulondolozwa Nokuphathwa
Ukufunda ngempilo yangaphambilini kanye nezinguquko zemvelo kubalulekile esikhathini samanje ekwaziseni amasu okulondolozwa nokuphathwa. Ukuqonda ukuthi izinhlobo nezindawo zemvelo zasabela kanjani ezinguqukweni zesimo sezulu esidlule kanye nezehlakalo zokuqothulwa okukhulu kunganikeza izifundo ezibalulekile emizamweni yokulondolozwa kwesimanje.
Isibonelo, ukutadisha amaphethini okubuyiselwa kwezindawo zemvelo ngemva kokuqothulwa okukhulu kungasiza amasu okuqina nokubuyiselwa esimweni lapho kubhekene nezinkinga zamanje zezinto eziphilayo. Ngokuqonda ukuthi izinhlobo ezithile zivumelanisa kanjani noma zehluleka kanjani ukuzivumelanisa nezinguquko zemvelo zangaphambilini, izazi zezinto eziphilayo zokulondolozwa kwemvelo zingakha amasu asebenza kahle kakhulu okuvikela izinhlobo nezindawo zemvelo ezisengozini yokuqothulwa namuhla.
Ngaphezu kwalokho, idatha ye-paleontological ingasetshenziswa ukusungula izisekelo zokuhlola imithelela yabantu emvelweni. Ngokuqhathanisa ukuhlukahluka kwezinto eziphilayo kanye nezimo zezulu zamanje nezesikhathi esidlule, ososayensi bangaqonda kangcono izinga lezinguquko ezibangelwa abantu futhi babikezele izitayela zesikhathi esizayo.
Isiphetho
Izifundo ze-paleontology zibalulekile ekuhlolweni komhlaba, zinikeza ukuqonda okujulile ngomlando woMhlaba, izinqubo zokuziphendukela kwemvelo, izimo zezulu zesikhathi esidlule, kanye nezindawo ezizungezile. Zembula ukusebenzisana okuguquguqukayo phakathi kokuphila kanye neplanethi, zinikeza ukuqonda okubalulekile ekubikezeleni izinguquko zesikhathi esizayo. Ukusetshenziswa okusebenzayo kwe-paleontology ekuhlolweni nasekulondolozweni kwezinsiza kugcizelela kakhulu ukubaluleka kwayo.
Ezweni elishintsha ngokushesha, lapho ukuguquka kwesimo sezulu kanye nokulahlekelwa yizinto eziphilayo kuyizinto ezikhathazayo, i-paleontology inikeza imibono ebalulekile mayelana nokuqina, ukuzivumelanisa nezimo, kanye nemiphumela yesikhathi eside yezinguquko zemvelo. Ngokutadisha isikhathi esidlule, sizihlomisa ngolwazi lokuhamba esikhathini esizayo, okwenza ucwaningo lwe-paleontology lube umzamo obalulekile emkhakheni we-geology.
