Ixesha Mesozoic

Ixesha Mesozoic ithathwa njenge kwisigaba yenguquko kuphuhliso lomhlaba. Ezinye zokuma bakubiza "a Middle Ages zebhayoloji kunye neznye."

Ixesha Mesozoic waqalisa ekupheleni Variscan (Variscan) kweenkqubo ntaba-isakhiwo, yaye yaphela - kunye ekuqaleni Alpine yokusonga (le yokugqibela revolution ezinkulu zomhlaba).

In the Southern saseNtla, yaphelela liqhekeke kwelizwekazi lamandulo ajenos. Ngokubanzi, ubomi ixesha Mesozoic luphawulwa kuzolile. Iinkqubo zokwakha intaba ayembalwa elifutshane elide.

I Mesozoic Era kwaqhubeka malunga 160 million. Iminyaka.

Ukusuka kwindawo zebhayoloji lwembono, eli xesha ilixesha utshintsho ezazivela kudidi, iifom ezindala ukuya entsha progressive ngakumbi. Ihlabathi ngelo xesha kakhulu ezahlukeneyo ngaphezu kwi Paleozoic, kunye nezityalo nezilwanyana ziye zanyuswa kakhulu.

Era Mesozoic. ngqi

Kukho izigaba ezithathu kweli xesha.

Lokuqala - i Triassic - ukuze igama ngenxa yokuba iidiphozithi bakhe kuluhlu phakathi ezintsonkothileyo eziphilayo ezahlukeneyo ezintathu. Ezi ziquka neyper - calcareous eliphezulu - yelitye lentlabathi medium lizwekazi - asezantsi. Uninzi boqobo na kumazwekazi rock isanti-udongwe (ngokufuthi kunye lens carbon), shale, lekalika zaselwandle, gypsum, iityuwa, anhydrides ichweba.

I Triassic compound yaba izwekazi southern (ajenos) kunye izwekazi esemantla (Laurasia). Kunye nale utshintsho ukwabiwa komhlaba kunye nolwandle, isakhiwo ntaba, ukuyilwa kwiindawo ezintsha mlilo, kwenzeka kakhulu ngokukhawuleza nokuhlaziya enezityalo nezilwanyana. Noko ke, kuphela iintlobo abambalwa baye bafudukela ukusuka Paleozoic ukuya Mesozoic. Ngokutsho kwabaphandi, ezi zinto zisisiphumo iintlekele ezinkulu-isikali eziye zenzeka kwi kumda eziqaphelekayo.

Inqanaba elilandelayo, equka era Mesozoic - le സോഫ്റ്റ്വെയര് isoftwe. Oku malunga nowama-200 yaye yaphela malunga nezigidi 145,5. Kwiminyaka eyadlulayo. ixesha സോഫ്റ്റ്വെയര് isoftwe waba ngomnye maxesha idumileyo kuphuhliso lomhlaba.

Ngeli xesha, zezona lwimi zisetyenziswa kakhulu phakathi izityalo gymnosperms ezifunyenweyo kumila. Kuthathwa ukuba iimeko zokusingqongileyo ichotshelweyo ifana neemeko kwexesha Carboniferous, ukuze njengoko kuphawulwe olubanzi Isakare Ukwakheka. Khona kwi Permian, Triassic waqala ngothanda kwinkqubo ye zwekazi elikhulu waqhubeka ukubola. Le nkqubo iba nefuthe elibonakalayo yolwandle, imvula, imozulu kunye nezimo ubukho eziphilayo ngokubanzi.

Ithuba സോഫ്റ്റ്വെയര് isoftwe igqalwa "ixesha izirhubuluzi." Lo mhlaba kuhlale dinosaur. Kwiilwandle babehlala plesiosaurs kunye ichthyosaurs, emoyeni - i pterosaurs. Phakathi Dinosaurs baqalisa ukwenza iintlobo ezinkulu. Kunye nale, bekukho pterodaktili ezincinane ezidla. Ekupheleni kwethuba സോഫ്റ്റ്വെയര് isoftwe, kwaqalisa ukuqokelelela ezinamandla maleko sekhombuya lekalika - wokulinganisa. Ngaloo ndlela, a entsha yeqonga.

Ukuqala kwexesha Cretaceous ubonakala ezinye iziganeko ezinkulu ekubunjweni kwehlabathi ephilayo. Ngelo waqala eli xesha ukubonakala ekuqaleni izityalo eneentyatyambo, amatye apho zithiwe thaca kwi imithi namatye amagqabi, ukukhula, yaye namhlanje (umzekelo, Elm, um-oki, willow, maple). Le izilwanyana kweli thuba Cretaceous kuyafana kakhulu ukuba lowo iye yakhula kwisithuba സോഫ്റ്റ്വെയര് isoftwe.

Isiphelo sale Isigaba luphawulwa orogeny obukhulu (isakhiwo ntaba) e East Asia, kuMntla noMzantsi Merika. rocks ngentlenga wayiqokelela kwi Andes geosyncline ngexesha ezininzi, ubunjwe ze Ndayishwabanisa zibe nezibaya zemihlambi. Ngaloo ndlela 'ukusekwa Andes.

umsebenzi mlilo linyukile kwiingingqi ezininzi emhlabeni. Emazantsi iyonke ye-siqithi Indian yambathiswa mlilo (ngoko kwakhiwa ihewu elikhulu "uDean"). Ekupheleni ngexesha Mesozoic kuzo zonke amazwekazi baba kuvuselele ebalulekileyo.