The Mesozoic panguva

The Mesozoic nguva ichaongororwa somunhu Transitional Danho iri kukura nyika. Vamwe Vanodzidza vanouti "munhu zvipenyu uye Geological Middle Ages."

The Mesozoic yaitonga vakatanga pakupera Variscan (Variscan) pagomo-kuvaka pezvakaitwa, uye akapedzisira - pamwe pakutanga Alpine shangu (wokupedzisira makuru tectonic chimurenga).

In weSouthern Hemisphere, ndokuguma mahwanda pamusoro kondinendi wekare Gondwana. Kazhinji, upenyu Mesozoic nguva dzinoratidzwa gadzikanei. chivakwa gomo pezvakaitwa kwaisawanzoitika uye pfupi.

The Mesozoic Era rwakatora vangasvika miriyoni. 160 Years.

Kubva zvipenyu nemaonero, era iyi inguva kuchinja kubva chinyakare, vatana nefomu zvikuru mberi itsva. Nyika panguva iyoyo yakanga zvikuru yakasiyana pane muna Paleozoic, uye nemiti uye fauna of zvave yekudyidzana upgraded.

Mesozoic Era. nguva

Pane matanho matatu munhambo ichi.

Chokutanga - ari Triassic - saka zita nekuda chokwadi kuti deposits ake akanyorwa pakati nhatu dzakasiyana mhando yakaoma. Izvi zvinosanganisira neyper - yokumusoro calcareous - svikiro Continental sandstone - yakaderera. Most randinenge vane Continental jecha-ivhu dombo (kazhinji kabhoni lenses), shale, zvomumvura reraimu, gypsum, munyu, anhydrides the lagoon.

The Triassic remubatanidzwa yaiva kondinendi wokumaodzanyemba (Gondwana) pamwe kuchamhembe kondinendi (Laurasia). Pamwe ndachinja kuparadzira panyika uye gungwa, kuvaka gomo, kuumbwa nzvimbo itsva kuputika kwakaitika nokukurumidza zvikuru uye updating pamusoro kasvisto uye miti nemhuka zvakazonaka. Zvisinei, vashoma dzemarudzi vakatama kubva Paleozoic kusvikira Mesozoic. Maererano nevaongorori, izvi ndiwo mugumisiro pamwero mukuru njodzi kwakaitika Pamuganhu epochs.

Mangwana Danho, izvo zvinosanganisira Mesozoic yaitonga - the Jurassic. Zvakatanga anenge 200 uye dzakaguma vanenge mamiriyoni 145,5. Makore akapfuura. Jurassic nguva akava mumwe yakakurumbira nguva kukura panyika.

Panguva ino, inonyanya kushandiswa pakati zvinomera vakagamuchira gymnosperms uye ferns. Zvinofungirwa kuti zvakatipoteredza zvinhu zvakanga zvakafanana ezvinhu enyika Carboniferous kumwedzi, saka sezvataurwa yakakura kwaIsakari inotungamirwa. Yaiva Permian, Triassic akatanga kusvuta crack munyika imwe kondinendi huru akaramba kuora. Izvi ane chinokosha kukanganisa munyanza dzenzvimbo, kunonaya, okunze uye mamiriro kuvapo zvipenyu zvavo.

The Jurassic nguva anonzi "nguva nezvinokambaira." Nyika yaigarwa dinosaurs. Mumakungwa akararama plesiosaurs uye ichthyosaurs, mumhepo - the pterosaurs. Pakati dinosaurs akatanga kuumba hofori marudzi. Pamwe izvi, pakanga duku Mbeswa pterodaktili. Panoperera ari Jurassic nguva, zvakatanga kuunganidza simba layered akaturikidzana reraimu - choko. Saka, munhu anotamba itsva.

Kutanga Cretaceous nguva kunoratidzwa zvimwe mikuru zviitiko paumbwe makemikari nyika. Panguva ino akatanga kuonekwa wokutanga maruva miti, zvisaririra zvacho dzinoturwa vemiti pamatombo mashizha, kukura, uye nhasi (somuenzaniso, elm, pomuouki, the willow, Maple). The fauna of mu iri Cretaceous munguva iri substantially chakafanana munhu anenge rakavapo muna Jurassic munguva.

Kuguma kuyaruka iyi inozivikanwa zvikuru orogeny (kuvaka gomo) kuEast Asia, North uye South America. Sedimentary matombo Makawana muna Andean geosyncline panguva dzakawanda munguva, nekuumbanidzwa uye yakaunyana kupinda pazvirugu. Saka akaumba muAndes.

kuputika basa kwakawedzera munyika dzakawanda panyika. The yose kumaodzanyemba kwenyika Indian kweItari akazadza dhaka (saka kuumbwa guru rwenze "Dean"). Panoperera ari Mesozoic yaitonga mumakondinendi ose vari chinokosha kukurudzira.