Archaic Aeon shine lokacin da ya gabaci Hadic Aeon. Ya kai kimanin miliyan 3.800 zuwa 2.500 shekaru da suka gabata. Har yanzu muna cikin Precambrian Supereon, amma shine farkon wanda zamu fara bambance zamani. Kamar wanda ya gabace ta, abin da ke faruwa a tsarin rana ma ya shafe shi sosai.
Supereon | Eon | Miliyoyin shekaru |
---|---|---|
Precambrian | Proterozoic | 2.500 a 540 |
Precambrian | Archaic | 3.800 a 2.500 |
Precambrian | Hadic | 4.550 zuwa 3.800 |
Idan Hadic aeon shine asalin da farkon duniyar tamu, mahimmancin Archaic aeon yana cikin farawa da asalin rayuwa. Dole ne a kara shi, bayyana tare da bayyana takamaiman lokacin kowane lamari a tarihin duniyar tamu, yana da matukar rikitarwa, idan ba haka ba. An san lokutan, an ayyana su, amma suna sake jaddadawa, babu takamaiman kwanan wata don kowane lamari. Amfani da wannan dabarar azaman jagora, bari mu bi hanyar da muka tsaya kwanakin baya.
Hakanan ana kiransa Archaeozoic, ɗayan lokaci ne mafi tsayi da ya taɓa wanzu. Ya ƙunshi gaba ɗaya, kusan kashi ɗaya bisa uku na jimlar lokacin duniyarmu. A cikin rubuce-rubucen da, Archaic aeon ya kasance ba za a iya rarrabe shi da Hadic ba, shiga dukkan lokutan a matsayin daya. Sunan Archaic, wanda ya zo daga tsohuwar Girkanci, yana nufin "farawa" ko "asali", don dalilan da aka tattauna. Wani abu mai halayyar wannan lokacin shine juyin halittar dunkulen duniya. Wannan yana kai mu ga tunanin manyan abubuwan motsa jiki, wanda ke haifar da cewa tsarin cikin duniyar ya yi kama da yadda muka san shi a yau.
Don fahimtar ƙididdigar tarihin wannan lokaci, dole ne a raba shi tsakanin zamani 4 masu girma. Kowannensu ya yi fice a cikin manyan canje-canje.
Eon | Era | Miliyoyin shekaru |
---|---|---|
Archaic | Neoarchic | 2.800 a 2.500 |
Archaic | Mesoarchic | 3.200 a 2.800 |
Archaic | Tsarin mulkin mallaka | 3.600 a 3.200 |
Archaic | Eoarchic | 4.000 / 3.800 zuwa 3.600 |
Za'a iya fassara ma'anar Archaeozoic mai saurin gaske daga manyan abubuwan da suka faru. Na farko heterotrophic da ƙwayoyin anaerobic masu daukar hoto sun bayyana (cyanobacteria). Tsarin farko na asalin halitta suma sun fara, stromatolites. Kazalika nahiyoyin farko sun bayyana tare da samuwar da farkon farantin tectonic. Oxygen fara fitarwa zuwa cikin yanayi. Kuma duk da kasancewarsa lokaci ne na faduwar meteorites, lokaci ne kuma da babban ruwan sama da yake akwai ya daina.
Masarautar Eoarchic
Zamani ne wanda ya ɗauki kimanin shekaru miliyan 200/400. Ya danganta da tushen da aka shawarta, tunda Hukumar ta Duniya ta Stratigraphy ba ta amince da ƙarancin lokacin ba. Ya bambanta da sauran, domin shine lokacin da halittun farko suka bayyana. Yana da kwanan wata shekaru biliyan 3.800 da suka gabata. Daga baya, shekaru biliyan 3.700 da suka gabata, farkon kwayoyin halittar sunadarai sun bayyana. Kwayoyin halitta ne wadanda basa bukatar hasken rana dan samun kuzarinsu.
Gudun zafin da ake ciki ya ninka na yanzu sau 3, yanayin da ake ciki yana da dumi sosai. Wannan ba kawai ya bayyana wannan zamanin bane, amma yana alama gaba ɗaya. Daga na gaba kawai, Proterozoic, kwararar zai ninka na yanzu. Wannan ƙarin zafin zai iya kasancewa saboda zafin da aka samu ne daga asalin murfin duniyan. Hakanan zuwa mafi yawan samar da zafin rana ta hanyar radionuclides na ɗan gajeren lokaci, kamar Uranium-235. Yana da kyau a ambaci aikin dutsen da ya wanzu a duniya, tare da fashewar dutsen da ramuka. Dukansu sun ci gaba da haifar da ɗumbin ɗumbin zafi.
Mulkin Paleoarchic
Ya haɗa tsakanin shekaru miliyan 3.600 zuwa 3.200. Siffofin rayuwa mafi sananne suna farawa. A nan kwayoyin sun bunkasa kuma tuni mun sami ingantattun microfossils daga shekaru biliyan 3.460 da suka wuce, a Yammacin Ostiraliya. Stromatolites.
Kwayar cuta ta fara daukar hoto, don samun kuzari daga hasken rana. Da farko sun kasance sunadarai ne, har yanzu basu bada iskar oxygen ba. A halin yanzu, zamu iya samun irin wannan hotunan a cikin kwayoyin kore daga sulfur kuma ba daga sulfur ba, da kuma na bacteria masu ruwan kasa. An kafa wannan nau'in samun kuzari kusan zuwa ƙarshen Archaic eon.
Thingsarin abubuwan da suka bayyana wannan zamanin. Zai yiwu haɗin ƙungiyar wasu mahaukata ya zama Vaalbará, wanda shine farkon farkon mulkin mallaka wanda ya wanzu. Ya kamata a lura cewa ba duk masana bane suka yarda cewa ya wanzu. Har ila yau, ƙarshen ƙarshen ruwan sama ne. Duk tsawon daruruwan miliyoyin shekarun da suka gabata, Duniya ta buge su.
Mesoarchic
Ya ɗauki tsakanin shekaru 3.200 zuwa 2.800 miliyan. Babban abin da ke nuna tunani Vaalbara zata gutsurezai daga baya a wannan zamanin, yana ba da hanyar Neoarchic. Wani abu don haskakawa shine a karon farko akwai wani kyalkyali a duniya. Don iya tunanin yadda yakamata ya kasance, ruwan da ke cikin teku zai iya samun babban ƙarfe. Wannan zai ba shi launin kore. Kuma a cikin yanayi mai cike da iskar carbon dioxide, sararin samaniya zai sami launuka masu launin ja.
Duk da samun sabon masarufi a cikin samuwar faranti tsakanin yanki, bai kamata su mamaye fiye da 12% ba. A wannan bangaren, da tekuna ba su daina yin su ba. Yanayin da zasu isa zai riga yayi kusan 50% na ƙimar da suke da ita a halin yanzu.
Mulkin Neoarchic
Zamanin ƙarshe da ƙarshen zamanin Archaic. Ya fahimci tsakanin 2.800 zuwa 2.500 shekaru da suka wuce. Kwayar cuta ta ci gaba da bunkasa, kuma tuni fara daukar hotuna masu sauki suna sakin iskar oxygen, cyanobacteria. Babban oxygenation na kwayoyin yana farawa akan duniyar duniyar wanda ke da nasa sakamakon a gaba. Babban haɗarin iskar oxygen zai kawo ƙarshen babban iskar shaka daga baya.
Protoungiyoyin mulki wanzu, kamar Vaalbarah, da wani da ake kira Ur, sun kasance kaɗan cikin girma. Ba wai kawai don sun fara soyayya ba, amma saboda bawonta yana sabonta kanta. Akasin kwanciyar hankalin da nahiyoyin suka gabatar mana da su a yau. A lokacin, dutsen da ya fara bayyana, sun taka rawar gani, tare da rarrabuwa da ɓarnar da ke faruwa.
Ba zai kasance ba har zuwa gaba, Proterozoic, inda siffofin rayuwa masu rikitarwa suka fara bayyana.
Idan ka kasance mai son sanin farkon komai. Muna gabatar muku da Hadic aeon, farkon duniyarmu. Inda kuma ya bayyana, samuwar ban mamaki na Wata.