Kuyini zwekazi iyini

Yonke kobuso Umhlaba yakhiwa amanzi nezwe. Futhi engxenyeni okuqinile ebangela% 29 kuphela endaweni Imininingwane yale planethi. Futhi ngisho ukuthi dissected yimifula, rivulets, ukusakaza, iziteshi. Futhi mingaki zikhona ku ezweni emaxhaphozini, amachibi kanye namachibi - futhi akazange ukubala, ngoba ezinye zazo ngezikhathi zinyamalale, aphinde avele. Mhlawumbe, iplanethi yethu kungaba lesifanele ngaphezulu ukubiza amanzi.

Lonke izwe sehlukaniswe amazwekazi ehlukile. Babuye ngokuthi ngisho amazwekazi. Kuyini ezwekazini, uyini umlando ivelaphi kanye neluhlaka lwentfutfuko - isikhathi eside ayikaziwa. Namuhla isayensi Geological bangachazela lukhulu, ngokukhethekile, kungani amazwekazi lihamba.

Yini zenziwa

Huge sedimentary block egwadle, le-basalt ungqimba isibekiwe mayelana 40 amakhilomitha obukhulu - okungukuthi ezwekazini. Namuhla, kunamabandla ayisithupha, futhi zitholakala komhlaba kuyinto engalingani kakhulu, eziqoqiwe okuphambene Pacific ingxenye yezwe. Ngo oyiyo, amazwekazi akuzona iyunifomu. Zakhiwa:

• geosynclines (alo izindawo);
• ezisekelweni (endaweni ezinzile).

Ukuphendula umbuzo ngalokho ezwekazini, singasho ukuthi lena ezweni mass enkulu, lapped by asolwandle nasemachibini siqukethe ezindaweni mobile futhi uzinzile.

izingxenye ezithathekayo emazweni - is eligoqiwe zigaba, enwetshiwe ubude izinkulungwane, noma ngisho amashumi ezinkulungwane amakhilomitha. Isibonelo salokhu art kungaba ibhande Geosynclinal Alpine-zaseHimalaya, edlulisela ohlangothini latitudinal yonkana, i-Eurasia. Impumuzo esashiwo alo ezintabeni nezigodi.

Platform - endaweni ezihamba kancane. Lokhu ezinzile, izigaba eside kumiswa ungqimba lomhlaba. Basuke embozwe ikhava phezulu amatshe sedimentary, okuyinto ukufihla konke semfene kwesisekelo. Ngezinye kulawo masayithi, uqweqwe eMhlabeni kukhona emathafeni ezinkulu. Isibonelo salokhu i-East European Plain, okuyinto emsamo Russian.

ukugudluka kancane kancane kwamazwekazi

Namuhla kukhona 6 amazwekazi. Umhlangano omkhulu kunayo yonke lezi iyona Eurasia, bese bahlala ngendlela elandelayo: Afrika, North America, eNingizimu Melika, i-Antarctica, kanye kencanikhulu - Australia.

Kodwa kwakungegazi emlandweni eMhlabeni isikhathi lapho kwakukhona supercontinent eyodwa kuphela, Pangea, futhi wawageza amanzi olwandle Panthalassa. Kuyini nezwekazi kwenkathi Mesozoic? Lena umhlaba omkhulu, usayizi okuyinto ilingana zonke amazwekazi lanamuhla elihlangene. Pangea laligcwele aluhlaza, phakathi lapho ngokukhululekile zazulazula izibankwakazi. Kwaba umbuso wabo kanye nesikhathi zezimbali.

Cishe abayizigidi ezingu-200 edlule, zasendulo zaleli zwekazi ahlukaniselwe Laurasia futhi Gondwana. Kwakheka phakathi Tethys Ocean. Laurasia kwesokunxele e Nenkabazwe futhi Gondwana eningizimu wahlala.

Lezi izwekazi ezimbili lasendulo ngaphansi isiphuku izidakamizwa ukunyakaza futhi waqhekeka waba izingxenye ahlukene okwakukhona ukukhukhuleka bacondze etindzaweni letehlukene, kancane kancane ezihambayo kude nomunye. Lena yindlela amazwekazi banamuhla, le lamatshwayo aziwa kithi esikoleni.

Ngakho, noma iyiphi ezwekazini yesimanje - it is kuphela isiqeshana Pangea lasendulo, yayikhona esikhathini eside esadlulako.