I-Archaic Aeon

meteorites asteroids umhlaba

I-Aronic aeon yaphawulwa yimvula yeemeteor

I-Archaic Aeon lixesha elandulela iHadic Aeon. Ibandakanya malunga ne-3.800 ukuya kwi-2.500 yezigidi zeminyaka eyadlulayo. Sisekho kwi-Precambrian Supereon, kodwa yeyokuqala apho sinokuthi siqale ukwahlula ii-eras. Njengomanduleli wayo, ikwachaphazeleke ngamandla yile nto ibisenzeka kwinkqubo yelanga.

USupereon Ewe Izigidi zeminyaka
I-Precambrian Proterozoic 2.500 i540
I-Precambrian Zakudala 3.800 i2.500
I-Precambrian Hadic 4.550 ukuya ku-3.800 XNUMX

Ukuba i-Hadic aeon yayiyimvelaphi kunye nokuqala kweplanethi yethu, ukubaluleka kwe-Archaic aeon kulele Isiqalo kunye nemvelaphi yobomi. Kufuneka kongezwe ukuba ukucacisa kunye nokucacisa umzuzu ngqo kwisiganeko ngasinye kwimbali yomhlaba wethu, ukuba akunjalo, kunzima kakhulu. Amaxesha ayaziwa, ayachazwa, kodwa egxininisa kwakhona, awukho umhla ochanekileyo wesiganeko ngasinye. Sebenzisa le logic njengesikhokelo, masilandele indlela esishiye kuyo kwiintsuku ezimbalwa ezidlulileyo.

IStromatolites iShark Bay Australia

Ayingawo nawaphi na amatye, ziiStromatolites. Kwichweba leShark Bay, e-Australia.

Eyaziwa nangokuthi yiArchaeozoic, lelinye lawona maxesha amade akhe abakho. Iqukethe ngokupheleleyo, phantse isithathu sexesha elipheleleyo lomhlaba wethu. Kwimibhalo yamandulo, I-aeon yama-Archaic isetyenziselwa ukungabonakali kwi-Hadic, ukujoyina omabini la maxesha njengelinye. Igama Archaic, eliphuma kwi Greek yakudala, lithetha "ukuqala" okanye "imvelaphi", ngenxa yezizathu ezixoxwe ngazo. Into ebalasele ngeli xesha yayikukuzivelela komhlaba. Oku kusikhokelela ekubeni sicinge ngeentshukumo ezinkulu zetectonic plate, ekhokelela ekuboneni ukuba ubume bangaphakathi bomhlaba bebefana kakhulu nendlela esiyazi ngayo namhlanje.

Ukuqonda ngokuchanekileyo ubalo maxesha lwale nyanga, kufuneka yahlulwe phakathi kweeras ezinkulu ezi-4. Ngamnye kubo obekade utshintsho olukhulu.

Ewe Era Izigidi zeminyaka
Zakudala Neoarchic 2.800 i2.500
Zakudala Mesoarchic 3.200 i2.800
Zakudala IPaleoarchic 3.600 i3.200
Zakudala I-Eoarchic 4.000 / 3.800 ukuya kuma-3.600 XNUMX

Inkcazo ekhawulezileyo yeArchaeozoic inokuchazwa kwiziganeko ezenzekayo. Kwavela iiseli zokuqala ze-heterotrophic kunye ne-photosynthetic anaerobic (icyanobacteria). Izakhiwo zokuqala zemvelaphi yebhayiloji nazo ziqala, ii-stromatolites. Njengokuba amazwekazi okuqala avela ngokwenziwa kunye nokuqala kwamacwecwe eteknoloji. Ioksijini iqala ukukhutshwa iye emoyeni. Kwaye ngaphandle kokuba lixesha elibonakaliswa kukuwa kweemeteorites, ikwalixesha apho imvula enkulu iphela khona.

I-Eoarchic

Ukuqhuma kwentaba-mlilo ngentaba-mlilo

Umhlaba usaqhubeka ukwenziwa rhoqo, udaka kunye nokuqhuma kwakuqhelekile

Kwakuyixesha elidlulileyo malunga ne-200/400 yezigidi zeminyaka. Kuxhomekeka kumthombo ekuboniswene nawo, kuba iKhomishini yeHlabathi yeStratigraphy ayiwamkeli umda osezantsi wexesha. Yahlukile kwezinye, kuba ngumzuzu wokuvela kwezinto zokuqala eziphilayo. Iminyaka engama-3.800 yezigidigidi eyadlulayo. Emva kwexesha, i-3.700 yezigidigidi zeminyaka eyadlulayo, Izinto zokuqala eziphilayo ze-chemosynthetic zivela. Zizinto eziphilayo azidingi kukhanya kwelanga ukuze zifumane amandla azo.

Ubushushu obukhoyo babuphindwe kathathu kunale ikhoyo ngoku, imozulu eyayixhaphakile yayishushu kakhulu. Ayichazanga le minyaka kuphela, kodwa iphawule yonke i-eon. Kuphela kulandelayo, iProterozoic, ukuhamba kuya kuphindaphinda kabini okwangoku. Olu bushushu longezelelekileyo lwalunokubangelwa bubushushu obuvela ekubunjweni kwesiseko sentsimbi yeplanethi. Kwakhona kwimveliso enkulu yobushushu berediyo yi-radionuclides yexesha elifutshane, njenge-Uranium-235. Kufuneka kuqatshelwe umsebenzi wentaba-mlilo owawukho kwihlabathi liphela, kunye nokuqhushumba kwentaba-mlilo kunye nemingxunya yodaka. Zonke ziyaqhubeka ukubangela iindawo ezininzi ezishushu.

IPaleoarchic

Iibhaktheriya ze-anoxygenic ziyavela. Oko kukuthi, benza ifotosinthesize, kodwa abayikhuphi ioksijini

Ibandakanya phakathi kwe-3.600 3.200 ukuya kwi-XNUMX yezigidi zeminyaka. Ezona ntlobo zobomi zibonakalayo ziqala. Apha izinto eziphilayo sele kwaye sele Sifumana i-microfossils egcinwe kakuhle ukusuka kwi-3.460 yezigidigidi zeminyaka eyadlulayo, eNtshona Ostreliya. Ii-stromatolites.

Intsholongwane iqala ukwenza ifotosinthesize, ukufumana amandla elangeni. Ekuqaleni zazine-anoxygenic, azange zikhuphe ioksijini. Okwangoku, sinokulufumana olu hlobo lwefotosinthesisi kwiibacteria eziluhlaza ezivela kwisalfure hayi kwisalfure, nakwibacteria emfusa. Olu hlobo lokufumana amandla lusekwe phantse de kube sekupheleni kwe-eon Archaic.

Izinto ezingakumbi ezichaze eli xesha. Kungenzeka ukuba umanyano lwezinye iikhratoni zenze iVaalbará, eyi-supercontinent yokuqala eyayikho. Kufuneka kuqatshelwe ukuba ayizizo zonke iingcali ezivumayo ukuba ikho. Kwakukuphela kwesiphelo semvula yeemeteor. Kuwo onke amakhulukhulu ezigidi eminyaka edlulileyo, uMhlaba wabethwa ngabo.

Mesoarchic

Ukutshona kwelanga komkhenkce

Imbonakalo yeplanethi kwindawo yokuqala yomkhenkce

Iqhubeke phakathi kwe-3.200 kunye ne-2.800 yezigidigidi zeminyaka. Indawo ephezulu yokucinga I-Vaalbara iya kuqhekekaiya kuthi kamva kweli xesha, inike indlela kwiNeoarchic. Into yokuqaqambisa yile kwabakho okokuqala glaciation enkulu kwiplanethi. Ukuze ukwazi ukuthelekelela indlela ebukeka ngayo, amanzi aselwandle anokuba nomxholo wentsimbi. Ingayinika umbala oluhlaza. Kwaye kumoya ogcwele kakhulu ikharbon diokside, isibhakabhaka besiza ukubonisa ithoni ebomvu.

Ngaphandle kwempembelelo entsha ekwakhiweni kwamacwecwe e-intercontinental, bekungafanelekanga ukuba babe ngaphezulu kwe-12%. Kwelinye icala, iilwandle, bezingayi kuyeka ukwenzeka. Umphezulu abaya kufikelela kuwo sele sele uza kuba malunga I-50% yevolumu abanayo ngoku.

Neoarchic

icyanobacteria, ulwelwe

Inqaku le-Hypothetical eliza kuqala ukubonakala ngenxa ye-cyanobacteria

Ixesha lokugqibela kunye nokuphela kwe-eon Archaic. Wayeqonda phakathi I-2.800 ukuya kwi-2.500 yezigidi zeminyaka eyadlulayo. Iintsholongwane ziye zaqhubeka ukukhula, kwaye sele qala ukwenza ifotosinthesize ikhuphe ioksijini, icyanobacteria. I-oxygenation enkulu yeemolekyuli iqala kwiplanethi eneziphumo zayo kwi-eon elandelayo. Ingqokelela enkulu yetyhefu yeoksijini iya kuphela ibangele i-oxidation enkulu kamva.

Iiprotocontinents eyayikho, njengeVaalbarah, kunye nenye ebizwa ngokuba yiUre, zazincinci ngomzimba. Hayi kuba beqale ukuthandana, kodwa kuba ukukhonkotha kwawo kwakuzihlaziya. Ngokuchasene nozinzo amazwekazi azibonakalisa ngalo kuthi namhlanje. Ngelo xesha, intaba-mlilo eyayiqala ukubonakala, idlale indima enkulu, kunye nezahlulo kunye neekraton ezazivele.

Kwakungayi kuba kude kube nge-eon elandelayo, iProterozoic, apho iintlobo zobomi ezinobunzima ziqale ukubonakala.

Ukuba unomdla wokwazi ukuqala kwayo yonke into. Ukuzisa i-Hadic aeon, ukuqala kwesijikelezi-langa sethu. Apho ikwavela khona, ukwakheka okungummangaliso kweNyanga.


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