Xa sithetha ngendalo yomkhenkce, sihlalutya ezinye zezinto ezisincedayo ukuba siqonde amandla ayo kunye nendaleko. Njengoko sisazi, imithambo yomkhenkce esezintabeni ivelisa indawo enomdla kunye nejometri yokufumana. Enye yezinto ezenziwa kufutshane ne Umkhenkce zezi mongo. Uluhlu lwentaba yezinto zomkhenkce ezingacaciswanga. AmaMoraines ahlelwa ngokobudlelwane bawo nomkhenkce.
Kule nqaku siza kungena nzulu kwi-moraines, zeziphi iintlobo ezikhoyo, ukuba zenziwe njani kwaye kubaluleke kangakanani ukuba babenomkhenkce.
Zithini i-moraines
Into yokuqala ekufuneka siyicacisile malunga nokuba yintoni i-moraine. Luluhlu oluncinci lweentaba olwenziwe ngezinto esizibiza ngokuba yi till. Oku kude kube yinto engenanto ngaphandle kwezinto ezenziwe kwi-glaciers kwaye oko akuhlukaniswanga. Imathiriyeli khange ibekhona kule ndawo ixesha elide kwaye ayihambelani nobunzima bekhephu kunye nokuhamba kweminyaka. Ukuba sicinga ngendlela ezisebenza ngayo izinto zomkhenkce, siza kubona ukuba ingqokelela yekhephu yenzeka minyaka le emva kwexesha lasebusika. Emva kokuwa kwekhephu, iyaqokelelana ngenxa yempembelelo yomxhuzulane kwaye ihambelane namanqanaba ekhephu awileyo anganyibilikiyo kwiminyaka edlulileyo.
Yile ndlela iphrofayili yekhephu esekwe ngayo. Okukhona singena nzulu, kokukhona siya kuphanda iminyaka emininzi. Iseti yamanqanaba ekhephu ibizwa ngokuba zii-stratifications. Ewe, xa zonke ezinye izinto zifunjelwe (ngokuthetha) kodwa ngaphandle kokuba zihlulwe, ibizwa njalo.
Kukho iintlobo ezahlukeneyo ze-moraines kuxhomekeke kubudlelwane enabo kunye nomkhenkce okhoyo. Siza kuhlalutya iintlobo ezahlukeneyo ze-moraines:
- Ngasemva moraine. Luhlobo lwe-moraine olwenzeka phantsi komkhenkce womkhenkce. Le mfumba yokulima iya kuba ebhedini kwaye iya kuchaphazeleka kukunyibilika komkhenkce kunye nokuhamba kwamanzi anyibilikayo.
- Morine wangasemva. Kukuloo ndawo apho izixhobo zifumaneka kunxweme lwebhedi yomkhenkce. Kumacala emacwecwe omkhenkce ungabona zonke izixhobo ezenza le moraine.
- Moraine ophakathi. Xa i-lateral moraines ifikelela kumphakamo omkhulu, kunokwenzeka ukuba badibane kumbindi wentili apho kudibana khona umkhenkce omabini. Le manyano ibizwa ngokuba yi-moraine esembindini.
- I-moraine yesiphelo. Zenziwe ziidipozithi zomkhenkce. Zihlala zibekwe ekupheleni komkhenkce kwaye sisiphumo sokuhanjiswa kwezi zinto kunye nefuthe lomxhuzulane.
- Morine yokurhoxisa. Zizo ezo zibekwe ebhedini yomkhenkce.
Iimpawu eziphambili
Iimpawu ze-moraines zishwankathelwe kumxholo weebhloko ezingalunganga zomkhenkce kunye nezinto ezinje ngamaqhekeza amatye acwangcisiweyo kuwo wonke umnqamlezo womkhenkce. Umkhenkce utsala izinto zomhlaba ngobunzima bawo kunye nokuqhubeka kwawo ngumkhenkce kunyibilike. Ngesi sizathu, isiqabu siguqulwa ngokuhamba kweminyaka kunye neminyaka de iintlambo ze-glacial kunye nolunye ulwakhiwo lwenziwe.
Amatye e-ablation moraines nawo aneentlobo ezahlukeneyo zezinto ezinokufunyanwa ebhedini yomkhenkce. Enye into ekwabizwa ngokuba yi-moraine sisilumko esisonjululwe ngumkhenkce. Kungenxa yokuba, emva kwalo lonke uhambo ebeluthathe kwiindawo eziphakamileyo, umkhenkce omkhenkce urhuqa zonke izinto eziye zafunyanwa apha endleleni.
Kude kube ngamandla
Esikubiza ngokuba njengangoku kude kube kukuqokelelwa kwezidalwa ezivela kumkhenkce nakwimisebenzi yawo yentshukumo. Banokubizwa ngokuba kukukhukuliseka okanye ukurhuqeka komkhenkce xa kusenziwa amaqela ahluke ngokupheleleyo aveliswe ngumkhenkce. Ukulima sisiqwenga somkhenkce esibekwe endleleni.
Ezi mpawu zithetha ukuba ukwenziwa kwe-till akusoloko kufana. Singafumana imixube yodongwe, amatye, igrabile kunye nesanti. Udongwe kumatshini wokulungisa lumile ngokungafaniyo emva kokuhamba kunye nokuqokelelana okulandelayo. Babizwa kude kube ziibhola. Ezi bhola ziqengqeleka ecaleni kwebhedi yomjelo kwaye zinokongeza amatye ekubunjweni kwawo. Le nto iyenzayo kukuba iphela iphelisa yonke indlela egutyungelwe ngamatye.
Ezi zide iibhola zihlala zibizwa ngokuba zii-armored till iibhola kuba zinamatye amaninzi. Yonke le nto ibizwa ngokuba ide ide ifakwe esiphelweni senyanga, emacaleni, embindini nasezantsi. Njengokuba ixesha lokunyibilika lifika kwaye umkhenkce uqalisa ukunyibilika, ubunzima bokulima burhuqa kwaye bubeka kwiisanti zemilambo evela kumkhenkce. Oku kuchazwa ngakumbi ukuba ngumkhenkce welizwekazi oqala ukunyibilika. IiTill zinokuthwala iidipozithi ezithile ezenziwe ngamaminerali okanye ngamatye axabisekileyo. Ezi zinto ziqokelelwa kulo lonke uhambo lomkhenkce kwaye zifumane ixabiso elikhulu kwezoqoqosho lokuba yinto eyahlukileyo. Umzekelo, yenzeka ngedayimani eWisconsin, eIndiana naseCanada.
Iingcali zokukhangela ezi zimbiwa zigxile ekulandeleni umkhondo obekwa ziirhafu kwaye uzisebenzise njengezikhombisi zokwazi ulwalathiso lomkhenkce ngexesha lokwehla kwentaba. Phakathi kwezona zifunwa emva kweedipozithi zezo ze-kimberlite, ezi ziidipozithi apho unokufumana iidayimani ezininzi okanye iintlobo ezahlukeneyo zezimbiwa.
Kukho iimeko ezininzi apho unokufumana uqinisiwe okanye ulungelelaniswe kude kube. Oku kwenzeka kuba bengcwatyiwe kwaye, kunye nesenzo soxinzelelo lwengqimba ephezulu ibe lilitye. Olu hlobo lwerwala lwaziwa njenge tillite kwaye luhlobo lwelitye lentlenga.
Ndiyathemba ukuba ngolwazi olunje ungafunda ngakumbi malunga ne-moraines kunye ne-till.