Meteorite - waxa run ahaantii waa xiddiga toogashada ah?

Muddo markii la joogaba on dhulkeenna yihiin kala duwan ee jidhadhka samada. Waxay yihiin waaweyn iyo kuwo yaryar, la arki karin iyo argagax, bir iyo silicate, kala duwan. Magaca cilmiga ah ee xiddiga toogashada ah - meteorite ah. Taas macnaheedu waxaa khuseysaa meydadkii ka badan 10 microns. meel yar, guests waxa loo yaqaan micrometeorites.

Waa maxay meteorites

Ku dhawaad 93% ka mid ah meteorites waa dhagax. iyaga waxaa ka mid ah chondrites, oo ka kooban dhinacyo silicate (caadiga ah, carbonaceous iyo enstatinovye) iyo achondrites, xaabo la soo dhaafay iyo kala socda in ka kooban in silicates iyo biraha. Inta kale ee jirka u qaybsan yahay bir-dhagax (pallasites iyo mesosiderites) iyo birta ah oo saafi ah.

Waxaa muhiim ah in tilmaamaya in meteorite ah - ma aha naasohoodu ah. Shuruudahaas, waxaanu tilmaamayaa waxyaalo kala duwan. Meteorite si toos ah loo yaqaan jidhka, iyo naasohoodu - track dab sameeyay in jawiga lagu jiro ay ku dhacaan. Waa qaldo "ayuu xiddiga toogtay", taas oo ka dhigi rabitaanka qofka romantically maskax.

Cabirka meteorites

Cabirka meteorites noqon karaa mid aad u kala duwan. Qaar ka mid ah iyaga ka mid ah oo hadhuudh ah oo ciid, dadka kale - gaarey tobanaan tons. Wakiilada beesha cilmiyeed ku andacoodaan in inta lagu guda jiro sanadka on dhulkeenna helo 21 tan oo meydadka leeska, wakiilada socodka miisaami kara ka garaam yar 1,000 kiiloogaraam.

The meteorites ugu weyn ee taariikhda dhulka

Sutter ee Mill dhacay Earth April 22, 2012. Jidkiisa keentay ka badan Nevada iyo California, iyo heerka dhaafto 29 kilomitir labaad. Kor kuwan dalalka ka meteorite iska qaybo ka mid ah tirada kala duwan oo kala jejebiyey, qaybta ugu weyn ee uu gaaray Washington iyo qarxay isaga kor ku xusan. Awooda qaraxa wuxuu u dhigmaa 4000 oo tan oo TNT. Seynisyahanno yaqaan da'da warwareega soo samadu - in ka badan 4,500 oo milyan oo sano.

In Peru, ku dhow Lake Titicaca oo u dhow xadka dalka Bolivia, 15 September 2007 waxaa dhici ee jirka runtan, Goosimo oo la helay. O biyo dhoobo ka buuxsamay dhacay oo kaliya muujinaysaa si qoto dheer god of 6 mitir iyo ballaciisu yahay 30. Waqtiga shilka, sida uu sheegay markhaatifuridda dadka deegaanka, il biyo nadiifa ah. Waxa jirta aragti ah in meteorite lahaa sunta, tan iyo beerta dayrta ka markhaatiyaal indhaha ku arkay bilaabay dhanjafka xoog leh.

Bishii June 1998, maalinta 20aad, oo ku saabsan magaalada Turkmen ee Old Urgench on boos beerta suuf degay martida ah oo miisaankeedu yahay 820 kg. Dhexroor ee bohol ahaa 5 mitir. Society Caalamiga ah ee meteorite xisaabiyaa da'da jidhka - in ka badan 4 bilyan oo sano jir ah - oo waxay heleen inuu ugu weyn ee in CIS ku dhacay oo dhan, iyo kii saddexaad ee ugu weyn ee dunida.

May habeenkii sanadkii 1990, 17 ilaa 18 tirada, iyo labaatan KM u Sterlitimak hoos meteorite 315-pound. Dhacdadani waxa ka dhacay garoonka State Farm, kuwaas oo ciidda ah waxaa la abuuray bohol 10-mitir. Xaaladdan oo kale jirka dibadda nafteedu waxay ku raran yihiin dhul at 12 m.

The meteorite helay ugu weyn waxaa loo arkaa Namibia. Waa magaca bir mucjiso Goba, oo uu leeyahay awood ka mid ah 9 mitir cubic iyo miisaanka ah 66 tons. Dhiciddiisa dhacay 80,000 oo sano ka hor, laakiin kaliya ka helay bar this ee 1920. Haddaba, isagu waa durkin maxalli ah.