Njengoba umongo eMhlabeni kwakhiwa: isakhiwo iplanethi yethu

Lokho iplanethi yethu nawe ngaphakathi? Indlela kwakhiwa core eMhlabeni, kwezinye endulo kwenzekile? Sekuyisikhathi eside Zonke lezi zinkinga ngokuthi isintu. Futhi ososayensi abaningi babefuna ukuthola ukwazi ukuthi ekujuleni? Kodwa kwathi cwaningo konke lokhu akulula kangako. Ngisho nanamuhla, nazo zonke zesimanje ezenza zonke izinhlobo zocwaningo, ngaphansi kwamandla isintu ukuba bayamba imithombo phakathi yembathani angu kuphela nanhlanu - zingekho. Futhi ukuthola isipiliyoni esiphelele futhi olubanzi ukujula oyifunayo kufanele kube i-oda sezingeni elikhulu. Ngakho-ke, ososayensi futhi ube ukuthola indlela Emhlabeni lakha, usebenzisa ezihlukahlukene ephezulu ukucacisa amathuluzi.

Lolu cwaningo Zomhlaba

Kusukela ezikhathini zasendulo, abantu beye batadisha rocks obala ngendlela engokwemvelo. Cliffs futhi entabeni nemithambeka, amabhange emaweni of imifula nolwandle ... Lapha ungakwazi uqobo, ukhona cishe eminyakeni eyizigidi edlule ukuze bagcine Bedrock. Futhi kwezinye izindawo ezifanelekayo zemihlangano kuthiwa yamba imithombo. Omunye okukhulu kakhulu zalezi - ku yonke iNhlonhlo Kola. ukujula Ezazimzungezile - abayizinkulungwane eziyishumi nanhlanu amamitha. Imayini ukuthi abantu ifohle iye ezimayini, kungasiza nasekunciphiseni ukutadisha yangaphakathi isakhiwo Zomhlaba. Core, yebo, lapho ' "Ngeke ngikwazi. Kodwa lezi kwezimayini imithombo, ososayensi bayakwazi ukubuyisa amasampula idwala, siqaphela ngale ndlela ku-izinguquko zabo futhi umsuka, isakhiwo kanye nokusungulwa. Ngaphansi yalezi zindlela wukuthi bayakwazi ukuphenya kuphela ezweni kanye kuphela engxenyeni engenhla uqweqwe eMhlabeni.

Recreating izimo emongweni eMhlabeni

Kodwa ngaphandle contact ukungena ososayensi engena shí zisiza Geophysics futhi seismology - isayensi ukuzamazama komhlaba kwaba nabantu bezizwe ezixubile Geological planethi. Ngokuhlola amagagasi okuzamazama komhlaba futhi ukusatshalaliswa yabo kuvela, futhi yini e isiphuku futhi core (kuchazwe efanayo, isibonelo, emkhathini nokusungulwa). Ulwazi olunjalo kusekelwe idatha etholwe - ngokungaqondile - kwi Izakhiwo izidakamizwa. Futhi namhlanje, ucwaningo kunomthelela idatha zamanje atholakala iziphuphutheki emzileni.

Isakhiwo amaplanethi

Ososayensi bakwazi ukuqonda, kufinyeta okutholakele, ukuthi isakhiwo se-Earth eziyinkimbinkimbi. It ziqukethe izingxenye ezintathu ukungalingani. In the isikhungo kuyinto core encane ozungezayo elikhulu nesiphuku. Isiphuku cishe-kwesithathu ezinhlanu ivolumu Imininingwane Zomhlaba. Futhi phezu zonke nesembozo kuhle mncane uqweqwe yangaphandle Zomhlaba.

Isakhiwo nucleus

Core - central, maphakathi ingxenye. It ihlukaniswe yaba izingqimba eziningana: zangaphakathi nezangaphandle. Ngokusho kwezazi eziningi zalezi zinsuku, umnyombo kwangaphakathi kuqinile, futhi yangaphandle - okusamanzi (lisasesimweni esibunjiweyo). Futhi umnyombo esindayo kakhulu: isisindo saso singamakhilogremu abangaphezu kwengxenye yesithathu nenqwaba iplanethi ngezinga volume of nje kuka-15. Amazinga oyinhloko kunalokho high, kusukela 2,000 ukuze 6,000 degrees Celsius. Ngaphansi ezizathwini of isayensi, isikhungo eMhlabeni i-iron ne-nickel ayinhloko. Irediyasi lokhu ingxenye esindayo - 3470 amakhilomitha. A-surface area abangaba yizigidi ezingu-150 amakhilomitha square, okuyinto mayelana elilingana endaweni wonke amazwekazi ku surface eMhlabeni.

Njengoba umongo eMhlabeni kwakhiwa

Ulwazi mayelana core iplanethi yethu lincane kakhulu, futhi ingatholakala kuphela hhayi ngendlela eqondile (akukho amasampula core emadwaleni). Ngakho-ke, inkolelo-mbono yokuziphendukela ungaboniswa ngombandela kuphela mayelana nendlela core eMhlabeni kwakhiwa. Umlando Zomhlaba has eminyakeni eyizinkulungwane zezigidi. Iningi ososayensi abanamathela kuyinkolelo-mbono ukuthi iplanethi kuqala leli njengoba homogenous kuqhathaniswa. Inqubo yokwaba ikhenela waqala kamuva. Ingxenye yalo - nickel nensimbi. Njengoba umongo eMhlabeni kwakhiwa? Ukuncibilika kwezinguzunga metal kancane kancane yehla maphakathi nendawo ne-iplanethi, ukwakha i-nucleus. Lokhu kwenzeka ngenxa incenye lenkhulu yebantfu ukuncibilika kwezinguzunga.

eyeza nezazi zezinkanyezi ezikhuluma okunye

Kukhona futhi nezitha mbono, umhole, kuwubufakazi ezinengqondo. Okokuqala, la ososayensi baye bangabaza Eqinisweni ezidlulayo i ingxubevange zensimbi nickel maphakathi core (amakhilomitha angaphezu kuka-100). Okwesibili, uma sicabanga ukukhethwa nickel nensimbi silicates, Meteor enjalo ke kumele kwenzeke futhi ezifanele zokunciphisa ukuphendula. Yena, kwalandelwa ukukhululwa kwe omningi umoya-mpilo, ukwakha ukucindezela abangamakhulu ezinkulungwane eziningana eziphindwe. Kodwa kuwubufakazi bokuba khona esikhathini esidlule ka emkhathini woMhlaba ngakho entulekayo. Ngakho-ke lalibekwe phambili imfundiso yokuziphendukela kumiswa yokuqala nengaphakathi ngesikhathi kumiswa emhlabeni.

Ngo-2015, ososayensi Oxford nazo zonke ahlinzekwa imfundiso yokuthi umnyombo iplanethi enguMhlaba siqukethe uranium futhi radioactivity. Lokhu ngokungaqondile kufakazela ukuba khona ensimini isikhathi eside kazibuthe Zomhlaba, kanye neqiniso lokuthi ezikhathini zanamuhla, iplanethi yethu obusuka ukushisa okuningi kunokulindelekile imicabango ngaphambili ngokwesayensi.