IPaleoclimatology

imvelaphi

Elinye lamasebe e-geology li imvelaphi. Imalunga nokufundwa koqweqwe lomhlaba, imihlaba, iirekhodi zeefosili, ukuhanjiswa kweesotop ezahlukeneyo elwandle kunye nezinye iindawo zendalo ezinxulumene nokuba nakho ukumisela imbali yokwahluka kwemozulu kwiplanethi. Uninzi lwezi zifundo lubandakanya uphando lwembali ngenjongo yokukwazi ukufunda zonke izinto ezenziwa ngabantu kwimozulu.

Kweli nqaku siza kukuxelela zonke iimpawu, ukusebenza kunye nokubaluleka kwepaleoclimatology.

Iimpawu eziphambili

Xa sithetha ngokufundwa koqweqwe lomhlaba, sithetha ngotshintsho kubume balo nakulwakhiwo lwalo. Inyaniso yokuba amazwekazi ahamba unyaka nonyaka yenza imeko yemozulu yendawo eyahlukileyo kwindawo yesibini. Uninzi lwezifundo kwi-paleoclimatology zibhekisa kuzo ubukho babantu kunye nemisebenzi yoqoqosho kunye nefuthe kwimozulu yeplanethi. Imizekelo yakutshanje yezifundo kwi-paleoclimatology ichaphazela utshintsho lwemozulu.

Njengoko sisazi, kubekho iinguqu ezahlukeneyo zemozulu okoko kwasungulwa iplanethi yethu ukuza kuthi ga ngoku. Utshintsho lwemozulu nganye lubangelwe ziinguqu ezahlukeneyo ekwakhiweni komoya. Nangona kunjalo, lonke olu tshintsho lwemozulu lwenzekile kwinqanaba lendalo eliye lavumela iintlobo ngeentlobo zeentyatyambo nezilwanyana ukuba zisasazwe kwihlabathi liphela ukuze zenze iindlela zokuziqhelanisa ukuze zikwazi ukuphila phantsi kweemeko ezintsha. Utshintsho lwemozulu lwangoku olwenzeka kule nkulungwane lwenzeka ngesantya esikhawulezayo esingavumeli izinto eziphilayo ukuba ziqhelane nayo. Ukongeza, Kufuneka songeze iimpembelelo zokusingqongileyo eziveliswe yimisebenzi yoluntu.

Ukutshatyalaliswa kwendalo kunye neendawo zendalo zezilwanyana zezinye zezona zinto zibalulekileyo zokunyamalala kwezinto eziphilayo. Izixhobo ezisisiseko ezibangela utshintsho kunye nokwahluka kwemozulu kunokuvela Ukuhamba kwelizwekazi kwimijikelo yokujikeleza orbital yoMhlaba. Kunokuthiwa ukuba i-paleoclimatology ifunda ngemozulu yexesha elidlulileyo ukusuka kwizalathi zendalo zejoloji. Nje ukuba ufumane idatha kwimozulu yexesha elidlulileyo, uzama ukuveza indlela amaqondo obushushu kunye nezinye izinto eziguquguqukayo zemozulu eziguquke ngayo kwixesha lembali yomhlaba.

Injongo ye paleoclimatology

Uphononongo lwepaleoclimatology

Lonke uphando olwenziweyo kuphando lwemozulu yexesha elidlulileyo, lunokuqinisekisa ukuba imozulu yeplanethi ayikaze izinze. Kwaye ngawo onke amaxesha isikali besitshintsha kwaye iyaqhubeka ukwenza njalo namhlanje kwaye iyakwenza njalo kwixesha elizayo. Imozulu ayitshintshi ngezenzo zabantu kuphela kodwa nangokwemvelo. Lonke olu tshintsho lwenza ukuba kufuneke ukuba bazi ukubaluleka kwezinto ezihambelana nemeko yendalo yotshintsho lwemozulu. Ngale ndlela, izazinzulu zinokuvavanya ngokungathandabuzekiyo ifuthe lokwenyani lezenzo zomntu kwimeko yanamhlanje yokusingqongileyo.

Enkosi kufundo lwefuthe lokusingqongileyo kwimisebenzi yabantu kwimozulu, iimodeli ezahlukeneyo zokuqikelela zinokuphuhliswa kwimozulu yexesha elizayo. Ngapha koko, umthetho oquka zonke iintshukumo ngokubhekisele kutshintsho lwemozulu olwenziwe ngokusekwe kuphando lwemozulu notshintsho lwayo.

Ngexesha lokugqibela kwamashumi eminyaka, kuye kwavela ithiyori ezahlukileyo ukuzama ukucacisa imvelaphi yeenguqu ezahlukeneyo zemozulu athe uMhlaba wasokola kuzo. Uninzi lweenguqu zemozulu zenzekile kancinci, ngelixa ezinye ziye zenzeka ngesiquphe. Yiyo le ithiyori eyenza uninzi lwezazinzulu luthandabuze ukuba utshintsho lwangoku lwemozulu aluqhutywa yimisebenzi yabantu. I-hypothesis esekwe kulwazi ngeenkwenkwezi inxulumana nokwehla kwemozulu nolwahluko kumjikelezo woMhlaba.

Kukho ezinye iingcamango ezinxibelelanisa utshintsho kwimozulu notshintsho kwimisebenzi yelanga. Kukwakho nobunye ubungqina bamva nje obudibanisa iimpembelelo zemeteorite, umsebenzi wentaba-mlilo, kunye nokwahluka kobume bomoya notshintsho lwehlabathi kwixesha elidlulileyo.

Ukwakhiwa ngokutsha kwepaleoclimatology

ikharbon dayokhsayidi

Ukuze ube nombono wemozulu kwimbali, kufuneka ukwakhiwa kwakhona kwe-paleoclimate. Olu lwakhiwo ngokutsha lubeka imiceli mngeni emininzi. Koko kukuthi, Akukho zirekhodi zemozulu zintle zikhona ngaphaya kweminyaka eli-150 edlulileyo Kuba kwakungekho zixhobo zokulinganisa ubushushu kunye nezinye izinto eziguquguqukayo zomoya. Oku kwenza ukuba ukwakhiwa kwakhona kwamanani kube nzima kakhulu ukwenza. Rhoqo, kwenziwa iimpazamo ezahlukeneyo ukulinganisa amaqondo obushushu adlulileyo. Ngesi sizathu, kubalulekile ukuba wazi zonke iimeko zokusingqongileyo zexesha elidlulileyo ukuseka iimodeli ezichaneke ngakumbi.

Ubunzima bokwakhiwa kwakhona kwe-paleoclimatic kuxhomekeke kwinto yokuba ayaziwa ngokuqinisekileyo ukuba zeziphi iimeko zobushushu ezazikwizidalwa zaselwandle, umphezulu wolwandle, ubunzulu kangakanani, umsebenzi we-algae, njl. Enye yeendlela zokuseka ubushushu bolwandle kwixa elidlulileyo kungenxa yesalathiso se-UK/37. Olu luhlu luqukethe uhlalutyo lwezidalwa zaselwandle zezinto ezithile eziveliswa yi-unicellular photosynthetic algae. Ezi algae zikummandla weefoto zolwandle. Le ndawo yindawo apho ukukhanya kwelanga kuwela ngohlobo lokuba kuvumele i-photosynthesis ye-algae. Ubunzima bokusebenzisa esi salathisi kukuba ubunzulu beelwandle ngelo xesha abaziwa kakuhle, leliphi ixesha lonyaka elinokulinganiswa ngalo, iindlela ezahlukeneyo, njl.

Rhoqo kuye kwakho utshintsho kwimo yendalo esingqongileyo olukhokelela kubume bendawo obungafaniyo nobangoku. Zonke ezi nguqu ziyaziwa enkosi kwiirekhodi zejoloji. Ukusetyenziswa kwezi modeli kuvumele i-paleoclimatology ukuba yenze inkqubela phambili enkulu ekuqondeni kwethu inkqubo yemozulu yehlabathi. Alithandabuzeki elokuba singene nzulu kutshintsho lwemozulu okoko iirekhodi zexesha elidlulileyo zisibonisa ukuba iqondo lobushushu elwandle kunye nohlaza, ukwakheka komoya ojikelezayo okanye imisinga yolwandle ibitshintsha ngamaxesha athile kumjikelo wamashumi amawaka eminyaka.

Ndiyathemba ukuba olu lwazi unokufunda ngakumbi malunga ne-paleoclimatology kunye nokubaluleka kwayo.


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