Iyo haic eon, inozivikanwawo se hadean kana hadean, inguva yekare kudarika pasi pano. Anonzwisisa kubva pakuumbwa kwePasi makore angangoita zviuru zvina mazana mana neshanu nemazana mashanu emabhiriyoni apfuura kusvika makore zviuru zvina mazana mana nezviuru mazana masere nezviuru mazana masere apfuura. Iyo nguva haina kunyatsoita, asi isina kurongeka nguva nekuti iyi miganho haina kuiswa zviri pamutemo kana kuzivikanwa. Komisheni inoona nezvekumisikidza miganhu uye kudzidza stratigraphy, geology uye geochronology pasirese pasirese ndiyo International Commission pane Stratigraphy.
| Supereon | Eon | Mamirioni emakore |
|---|---|---|
| Precambrian | Proterozoic | 2.500 a 540 |
| Precambrian | Zvekare | 3.800 a 2.500 |
| Precambrian | Hadic | 4.550 kusvika 3.800 XNUMX |
Iyi nguva, isingazivikanwe, iri panguva imwe chete kutanga kwepasi redu. Inofungidzirwa kuti iro rezuva rese raigona kunge raigadzira pakati pegore rakakura regasi neguruva. Haic aeon zvakare inguva iyo Pasi rinoita shanduko huru. Nekuda kwekuputika kukuru kwemakomo, uye kunyangwe iyo nguva iyo Nyika nemapuraneti mazhinji emukati mezuva, akagamuchira zvakakomba zvakakura kubva kuma asteroid makuru. Imwe yacho yaive Mwedzi wakanangana nePasi (watakataura nezvayo nguva pfupi yadarika, mu kuziva kwePasi, tarisa 5).
Uchapupu hweHadic Aeon
Supracortical Belt kubva kuIsua. Iyo yakare diki microbial fossil yeese akawanikwa, anotangira kumashure 3.480 bhiriyoni emakore
Kutsvaga matombo ekare-kare, tiri kuenda kuGreenland, Canada neAustralia. Vane makore mabhiriyoni 4.400. Hadic matombo, akawanikwa mumakumi emakore apfuura ezana ramakore rechimakumi maviri, ndiwo ega zircon kristal maminera. Kunyangwe ari iwo echinyakare zvicherwa zvinozivikanwa, uye zvakavigwa zvakadzika kwazvo pasi pemadhiri kumadokero kweCanada uye nedunhu reJack Hills kumadokero kweAustralia, hadzisi dzedombo mafomu.
Dombo rekare-kare ayo anozivikanwa zuva kubva kare 3.800 mamirioni emakore. Iyo yekare inozivikanwa iri kuGreenland, inozivikanwa se "Supracortical bhandi reIsua". Dzinenge dzichichinjikwa nemakomba emakomo akapinda mumatombo mushure mekuiswa. Mubhuku "Conceptions nezvekwakabva hupenyu" naGeorge Sebastián González naMarcel Ciela Gutiérrez tinowana, nehunyanzvi data, asi zvine mashiripiti, mumwe wemibvunzo yatagara tichizvibvunza. Upenyu hunotangira papi? Uye ipapo varipo, ekutanga humbowo hwekutanga, mune supracortical bhandi reIsua, muHadic Aeon.
Kwakatangira Hupenyu Pasi Pano
Greenland sediment ine mabhandi esimbi akabatanidzwa. Pakutanga zvaitendwa kuti vanogona kunge vaine organic kabhoni, izvo zvaizoratidza kuti pamwe mamorekuru ekutanga-kuzviteedzera akatanga kuvapo. Zvino kune humbowo hwekutanga kuti hupenyu hunouya kubva kuIsua supracortical bhandi, kubva kuWest Greenland, uye zvakare kubva kuAkilia Islands, kubva munzvimbo imwechete. Inofanira kutarisirwa mupfungwa kuti, kunyangwe hazvo humbowo hwesainzi hwakawanikwa munzvimbo iyoyo, hatigone kuzvitaura munguva yakapfuura. Yeuka kuti Pasi, harina kungoumbwa chete, asi mushure mekuumbwa kwaro, kufamba kwemahwendefa ekondinendi kwakaenderera
Maumbirwo edombo anoumba ane mukombero we -5,5 weCarbon (C) 13, C13. Izvi zvinokonzerewa neiyo biotic nharaunda iyo inoreruka C12 isotope inosarudza. C13 mu biomass ine kuwanda kwe -20 uye -30, yakadzika kwazvo kupfuura zviyero zvinowanikwa mumatombo mafomu. Kubva pane aya maitiro zvinofungidzirwa kuti hupenyu hwepasi redu hungangotanga mamirioni 3.850 apfuura makore, pakupera kweHadic eon.
Kutanga kwemvura
Inofungidzirwa kuti pakati pezvikamu zvakaumbwa nyika, panofanirwa kuve paine imwe huwandu hwemvura. Aya mamorekuru aisafanira kunge akakundwa negiravhiti, uye achifamba achibva pakati, akaramba ari pamusoro payo. Mushure mekunge nyika yasvika 40% yekuumbwa kwayoAya mamorekuru emvura, pamwe chete nemamwe akanyanya kushanduka, anofanira kunge akawanikwa pamusoro, muhukuru hwakawanda kare. Kushaikwa kwemagasi mazhinji akanaka anofanira kunge akapukunyuka ari kurova, senge helium kana hydrogen. Izvi zvakatungamira kukutenda kwekuti chimwe chinhu chine njodzi chinofanira kunge chakaitika mumhepo yekutanga. Pakati pekufungidzira, isu tine dzidziso yaTheia, iyo yatakakurukura mune izvo chinyorwa chekupedzisira (poindi 5), akatsanangura kuti sei Mwedzi uripo saizvozvo.
Iyo inokonzeresa mhedzisiro pahupenyu
Zano rekuti mvura yaiita sei sekukonzera rakapihwa naLazcano naMiller mu1994. Vanobatanidza, ivo vakatsanangura, vaizobva mukutenderera kwemvura kuburikidza nemhepo yepasi pegungwa. Yakazara nguva yekudzokorodza yaizotora makore gumi emamirioni, asi chero chinhu chemakemikari chinogona kuparadzwa patembiricha inopfuura 10ºC Saka, mushure meizvozvo kutonhora zvishoma nezvishoma, muviri wechinyakare DNA-protein heterotroph ine 100 kilobase genome, zvinotora makore angangoita mamirioni manomwe kuti ishanduke kune cyanobacterial genome ine zviuru mazana manomwe.
Uye pane chimwe chinhu chatisina kutaura, kuti rimwe zuva richagamuchira mhinduro. Nhasi unoramba uri iwo mubvunzo mukuru kupindura. Hupenyu, sekuzivikanwa kwaro, hunogona kungovapo nenzira yekabhoni kana yesilicon. Pasi redu, iripo sekabhoni, kwete nesilicon, ndiani anoziva kana pamwe kumwewo kwairi. Asi mubvunzo ndewokuti, hupenyu hungakura sei kana mukana wekuitika uku wanga usiri?
Hazvigoneki kuti kana tikafunga nezvazvo usiku, tinotarisa kumusoro kune nyeredzi. Tichirega isu tichipindirwa nepfungwa huru dzinomuka.
Mushure meHadic aeon, iyo Archaic eon. Kana iwe uchifarira kuziva kuti zvakaenderera sei, tinya pano.