Nezvezvikonzero zvekutsakatika kwemadinosaur, zvichiri kudzidzwa. Kwenguva yakareba, maonero ane simba, uye kutsakatika kwemadinosaur makore 6500 apfuura nezve meteorite hombe. Sekureva kwekudzidza, pakanga paine asteroid ine dhayamita ye7-10 km ichawira pamusoro penyika, zvichikonzera kuputika kukuru, sekukanda guruva rakawanda mumhepo kuti iumbe Zhetianbiri House of Sand and Fog, zvakaita kuti photosynthesis yezvirimwa imiswe, uye nekudaro kutsakatika kwemadinosaur. Dzidziso yeAsteroid impact yakakurumidza kuwana rutsigiro rwemasayendisiti mazhinji. Muna 1991, muYucatan Peninsula yeMexico kwakaitika mukuwanikwa kwenguva refu kwemameteorite impact craters, chokwadi chiri humwe humbowo hwepfungwa iyi. Nhasi, maonero aya anoita seave mhedziso.
Asi kunewo vanhu vazhinji vane pfungwa yekuti denga rakadaro rakaita seasteroid rinokanganisa vanhu vasina chokwadi, nekuti chokwadi ndechekuti: matatya, mangwena nezvimwe zvakawanda zvinonzwa tembiricha yemhuka zvakaramba uye zvakapona muCretaceous. Dzidziso iyi haigone kutsanangura kuti nei madinosaur chete akafa. Kusvika pari zvino, masayendisiti ataura kuti chikonzero chekutsakatika kwemadinosaur chave chiri zviitiko zvinopfuura gumi nemaviri, pfuma yakawanda kune zvinoshamisa uye zvinonakidza, "akadaro meteorite collision," asi ndeimwe yacho. Kuwedzera kune "meteorite collision", kutsakatika kwemadinosaur pamaonero makuru kune zvinotevera: Chekutanga, shanduko yemamiriro ekunze, akadaro. Makore mamiriyoni 6500 apfuura, mamiriro ekunze ePasi akangoerekana achinja tembiricha, zvichikonzera kudzikira kweokisijeni mumhepo zvekuti madinosaur haana kugona kurarama. Zvakataurwawo kuti madinosaur ane ropa rinotonhora, asi asina bvudzi kana nhengo inodziya uye haagone kuchinjika netembiricha yePasi yakadonha, akaomeswa nechando kusvika afa.
Chechipiri, rudzi urwu, akadaro kurwa. Kuguma kwenguva yemadinosaur, kwakatanga kuonekwa mumhuka diki dzinoyamwisa, mhuka idzi dzinogona kudya mazai nemakonzo. Nekuda kwekushaikwa kwemhuka diki dzinodya mazai, dzinowedzera uye pakupedzisira dzinodya mazai acho.
Chechitatu, kufamba kwepasi, akadaro. Ongororo yeGeology inoratidza kuti kupona kwemadinosaur panguva yePasi kunongova chikamu chenyika chete, kureva, "Pangea." Nekuda kwekuchinja kweganda repasi, kondinendi iyi yakaitika muJurassic yekupatsanurwa kukuru nekudzika, zvichikonzera shanduko yezvakatipoteredza nemamiriro ekunze, uye nekudaro kutsakatika kwemadinosaur.
Chechina, shanduko mu geomagnetic yakati. Biology yemazuva ano inoratidza kuti mimwe minda yebiological uye magnetic ine chekuita nerufu. Inonyanya kunzwa simba remagineti rebiology, mushanduko yesimba remagineti rePasi, inogona kutungamira mukutsakatika. Saka zvinoita sekunge kutsakatika kwemadinosaur kunogona kunge kwakabatana neshanduko mumunda wemagineti wePasi. V. akati chepfu yeangiosperm. Kuguma kwenguva yedinosaur, magymnosperm ePasi anonyangarika zvishoma nezvishoma, achitsiviwa nehuwandu hwakawanda hweangiosperms, magymnosperms ane zvirimwa izvi hazvina chimiro chechepfu chedinosaur hombe, kudya kwehuwandu hwakawanda hweangiosperms kwakaita kuti hupfu huunganidzwe mumuviri. Yakawandisa, pakupedzisira chepfu. Nhanhatu, mvura ine acid. Nguva yekupedzisira yeCretaceous ingave yaive pasi pemvura ine acid yakasimba, ivhu, kusanganisira mu trace element strontium, dinosaur inonyungudutswa kuburikidza nemvura yekunwa nechikafu, zvakananga kana zvisina kunanga, kudya kwestrontium, chepfu isingaperi kana isingaperi, mapoka ekupedzisira evakafa.
Zvikonzero zvekutsakatika kwemadinosaur zviri pamusoro pefungidziro yekuti zvataurwa pamusoro apa zvakawanda kupfuura izvi. Asi idzi fungidziro dzataurwa pamusoro apa munharaunda yesainzi dzine vatsigiri vakawanda. Ehe, imwe neimwe yedzataurwa pamusoro apa, pane nzvimbo isina kukwana. Semuenzaniso, "kuchinja kwemamiriro ekunze" hakujekese zvikonzero zvekuchinja kwemamiriro ekunze. Mushure mekuongorora, mamwe madinosaur madiki muCoelurosauria, ane nguva yakakwana yekurwisa mhuka diki, saka "marudzi anonetseka kutaura" kuti pane nzira dzekubuda nadzo. Mu geology yemazuva ano, "continental drift theory" pachayo ichiri fungidziro. "Angiosperms poisoning" uye "acid rain" kushaikwa kwehumbowo hwakakwana. Nekuda kweizvozvo, chikonzero chaicho chekutsakatika kwemadinosaur, hachisati chaenderera mberi nekuchiongorora.
Kawah Dinosaur Yepamutemo Webhusaiti:www.kawahdinosaur.com