Ordovician Nguva Paleozoic Era: kasvisto uye miti nemhuka zvakazonaka

Ordovician (maitiro) - marongera chechipiri sediments of Paleozoic boka iri nhoroondo zvemaumbirwo panyika. The zita rinobva yekare yorudzi Ordovician. Vaigara Wales, UK. Nguva iyi kuzivikanwa sezvo yakazvimirira hurongwa. Waivapo makore mashanu mamiriyoni zana apfuura uye kwemakore mamiriyoni matanhatu. The nguva dzinounzwa kuti vakawanda zvitsuwa nhasi uye mumakondinendi ose.

Zvemaumbirwo Ordovician System

Pakutanga kwenguva North neSouth America zvave pedyo Europe uye Africa. Australia akanga inotevera pamwe Africa uye yaiva chikamu Asia. Mumwe matanda iri kuchamhembe kweAfrica, mumwe - kuchamhembe chikamu Pacific Ocean. Pakutanga yacho Ordovician zvakawanda rwezasi Earth rakatora kondinendi Gondwana. Raisanganisira pari South America, South Atlantic Ocean, Australia, Africa, North Asia uye Indian Ocean. Zvishoma nezvishoma, Europe uye North America (Lawrence) vava vakaparadzana mumwe. Wegungwa ari kumuka. Vazhinji nyika yakanga iri inodziya latitudes. In Gondwana vakanga migodhi, uye gare gare Continental mazitombo echando. In South America uye kuchamhembe-nechokumadokero Africa yakaramba pasi sediments pamusoro moraines, izvo akasiya Paleozoic munguva.

Ordovician yeArabia Peninsula, kumaodzanyemba kweFrance, Spain kunoratidzwa icing at. MuBrazil uye West Sahara zvisaririra echando akazivawo. Kuwedzera gungwa nzvimbo kuitika pakati Ordovician. Kumadokero mativi North uye South America, Great Britain, muna Ural-Mongolian bhandi, kumaodzanyemba-kumabvazuva Australia, kungoda Ordovician sediments ukasvikira makubhiti zviuru gumi. Munzvimbo idzi, paiva yakawanda anoputika, mabota akazviunganidzira strata. Find zvakare chert: jaspa, ftanidy. MuRussia Ordovician nguva iri pachena kuonekwa pamusoro East European, Siberian papuratifomu, ari Urals, Novaya Zemlya, pamusoro New Siberian Islands, pamusoro Taimyr Peninsula muKazakhstan uye Central Asia.

Climatic mamiriro ezvinhu ari Ordovician System

In Ordovician ezvinhu yakakamurwa nezvemarudzi zvina: neequator, unozvidzora, subtropical, nival. Mugore Late Ordovician akanga kutonhora. In dzinopisa nharaunda tembiricha dzaiuya madhigirii mashanu, muna subtropical kumatunhu - gumi. Very chando chaizvo pamatunhu latitudes. The Middle Ordovician paiva inodziya ekunze, tichienzanisa yapfuura yaitonga. Izvi zvinoratidza kugovera reraimu.

Zvicherwa zviri Ordovician System

Pakati zvicherwa kuumbwa iyi, akapora mafuta uye gasi. Kunyanya yakawanda deposits iyi nguva North America. Uyewo akataura dhipoziti mafuta shale, phosphorite. deposits aya akatsanangura Geological pezvakaitwa umo magma zvaibatanidzwa. Somuenzaniso, muna kuKazakhstan pane deposits ose manganese esimbi uye barytes.

Egungwa Ordovician

The Middle Ordovician pane kuwedzera mugungwa dzezvimwe. Mugungwa kunova yakaderera. kuchinja izvi zvakakanganisa zvikuru kuunganidza hombe paiva emadhaka, izvo anomiririrwa dema sludge. Inoitwa nemadota kwemakomo, clastic matombo uye jecha. kudzika makungwa dzaiva munzvimbo yava North America uye Europe.

Nemiti uye Fauna of Ordovician

Algae ari Ordovician munguva handishanduki kana zvichienzaniswa yapfuura nguva. Rinooneka miriwo wokutanga chaizvo panyika. Vari kunyanya vanomiririrwa mosses.

Upenyu mvura iyi zvikuru siyana. Ndokusaka anonzi zvikuru munhoroondo Pasi. Akaumba Mhando chikuru zvisikwa gungwa. Pane hove yokutanga. Chete ndivo vashomashoma, masendimita anenge mashanu. At gungwa zvisikwa akatanga kuonekwa rakaoma cover. Izvi zvakanga nekuti zvipenyu vakatanga hwokukurira nechepasi sediments uye kufudza pamusoro pegungwa. Vakawanda pane mhuka kuti chikandodya yomugungwa. Mamwe mapoka vertebrates kunge wakashanduka-shanduka, vamwe Watotanga kutanga. Panoperera ari Ordovician kuonekwa vertebrate zvinenge. Kubva gungwa echinoderm matema akazviratidza, gungwa seruva. Pari, zvinenge akadai gungwa maruva uye nyeredzi gungwa kuvapowo.

Above gungwa maruva floats makwai muramba - iri mufananidzo vekare akanaka. Varidzi vari kutanga kunyura zvokurarama nazvo zvavo. Gastropods uye elasmobranch hunomiririrwa vakawanda mhuka. Muna Ordovician cephalopods chetyrehzhabernyh kukura kunoitika - a chinyakare nevamiririri Nautiloidea. Utachiona uhwu vari kurarama dzakadzika Indian Ocean. Rinonyura vamiririri yekare izvi zvipenyu akanga akarurama, kusiyana curved anoshongwa hwemazuva nautilus kwemarudzi. clams Ndivo chikara mararamiro.

mhuka New iyi vaiva graptolites. Ivo bereka kubudikidza yotunga. Graptolites akasika nyuchi. Kare, vakanga akataura coelenterates, ikozvino - kuti krylozhabernym invertebrates. Panguva ino, graptolites haana kurarama, asi pane hama dzavo kure. Mumwe wavo anogara muGungwa North - ndiye Rhabdopleura normanni. Uyewo, pane boka zvipenyu inobatsira korari kuvaka kumboongororwa. Ivowo akazviratidza panguva ino - nayo bryozoans. Ivo kuvapo zvino, kufanana zvinenge izvi pamusoro yakaisvonaka resi pamakwenzi. Kuti vakadaro zvakaitika aromorphoses Ordovician mu zvipenyu.

Vagari mumakungwa

The sandstone mu Colorado nezvimedu hove jawless zvakawanikwa. Zvikaramba nezvimwe residues ezvisikwa vertebrate, rakafanana shark. Zvisaririra dzinoratidza kuti Ordovician jawless vakasiyana zvipenyu vanhasi.

Mhuka rokutanga vaiva mazino - nayo conodonts. zvisikwa izvi akafanana mburwa. pashaya dzavo yakasiyana shaya zvipenyu. Masayendisiti vakaverenga mazana matanhatu mhando zvipenyu kuti vaigara wamakungwa pamusoro munguva. The chando Snap aiva mumwe zvikonzero kutsakatika zhinji mhuka. Kudzika makungwa bani, uye zvikara zvegungwa akafa. Chete mugumisiro wacho kunzwisisa uye Fauna of iyi.

Chikonzero kutsakatika zvipenyu mhuka

Pane shanduro mukanyiwa kutsakatika zvisikwa zvakawanda:

1. Explosão wegamma mwaranzi mukati renzou.
2. Kuwa mitumbi huru kubva muchadenga. Zvidimbu dzavo kana meteorites kuwanikwa nanhasi.
3. Mugumisiro paumbwe gomo enyika. matombo weathered nemhepo uye muvhu. Somugumisiro azvaiitwa yakaderera mune kabhoni, hunobata nokudziya.
4. Kutamira Gondwana kuna South Pole kwakatungamirira ushamwari Snap, uye ipapo chando zera, zvinoderedza mvura pamwero munyanza.
5. The saturation zviri munyika mumakungwa simbi. Vadzidza plankton iyoyo ine yakakwirira kwevari zvakasiyana siyana simbi. Water nomuchetura yakaitika simbi.

Ndoupi shanduro idzi dzinoita dzechokwadi, uye nei mhuka yakatotsakatika Ordovician, iri pari usingazivi.