Ungazi njani ukuba yimeteorite

wazi njani ukuba into oyifumeneyo yimeteorite

Iimeteorite ngala matye makhulu akwaziyo ukugqobhoza kwiatmosfera yomhlaba aze aphele ewela phezu komhlaba. Nangona kunjalo, xa sifumana ilitye elikhulu elineempawu ezithile, kunzima wazi njani ukuba yimeteorite okanye iliwa.

Ngesi sizathu, siza kunikezela eli nqaku ukukuxelela indlela yokwazi ukuba into oyifumeneyo iyimeteorite okanye hayi kwaye zeziphi iimpawu zayo kunye nemvelaphi.

Ungazi njani ukuba yimeteorite

i-ponferrada meteorite

Iziqwenga zeemeteorites ziwela kwiplanethi yethu rhoqo zivela ngaphandle. Ngokuqhelekileyo bawela elwandle okanye kwiindawo ezingasetyenziswanga, ngoko akunakwenzeka ukufumana isiqwenga se-asteroid kwenye indawo. Ukuba ubona ilitye ebaleni elinomdla kuwe, ungasebenzisa la maqhinga ukubona ukuba yinto ephuma kweli hlabathi.

Umazibuthe uya kutsala imeteorite ye-ferromagnetic. Ukuba isondele kwimagnethi kwaye ayibambeki, mhlawumbi ayisiyiyo i-ferromagnetic meteorite. Kuphela ziimeteorite ezincamathele kwimagnethi ezithathwa njengeferromagnetic.

IiRegmaglypts kukubumba kumphezulu wamatye amnyama okanye amdaka. Phantse onke amatye amnyama amnyama ngombala kunamatye aqhelekileyo kwaye anobumba kumphezulu wawo. Ubunzima yenye into eqhelekileyo kakhulu. Zinzima kakhulu, zinzima kakhulu phakathi kwe-4 kunye ne-8 grams per cubic centimeter.

Ukuba awukaqinisekanga, unokupolisha ilitye ngesanti esekwe ngamanzi okanye encamatheleyo. Iimeteorite zikhangeleka njengentsimbi xa zikhazimlisiwe. Emva kokuba i-asteroid ifunyenwe, kufuneka iye kwisebe le-geology ukuze ihlalutywe. Iimvavanyo zimisela ukuba iasteroid ngenene yile nto bekumele ukuba yiyo (intsalela yesijikelezi-langa esiwayo). Ukuba i-asteroid iphumelele iimvavanyo ezi-9 ezingentla, iya kuthathwa njengeyokwenene.

Phakathi kukaMars kunye neJupiter kukho isithuba apho abanye bakholelwa ukuba kukho iplanethi eyatshatyalaliswayo ekuyilweni kwenkqubo yelanga. Izigidi zamatye namatye amancinci kucingelwa ukuba zenze i-asteroid belt, emva koko kucingelwa ukuba zizigidi zeengceba zenkunkuma. Ngamanye amaxesha enye yezi ziqwenga ze-asteroid iyawa ngaphandle kwe-orbit kwaye ingqubane noMhlaba.

Imiba yokufunda indlela yokwazi ukuba yimeteorite

Iimpawu ze-asteroids

uqweqwe lwefusion

Izinto ezimnyama ezijikeleze i-meteorite, ukuba ayizange iqhekeke kwimpembelelo, yiyona nto eyahlula i-meteorite kwamanye amaqhekeza esinokuwafumana. Uqweqwe lwelitye leemeteorite luqhele ukuba ngqindilili kunelo lweemeteorite zesinyithi, alukho ngaphezulu kwe-1 mm ubukhulu.

Amaqokobhe elitye elineemeteorites aquka i-amorphous silica (uhlobo lweglasi) exutywe nemagnetite, ephuma kwi-silicates kunye nentsimbi eyenza uninzi lweemeteorites zamatye.

Umaleko wangaphandle weemeteorite zesinyithi ngokwesiseko wenziwa yi-iron oxide ebizwa ngokuba yimagnetite, edla ngokuba yi-submillimeter. Bahlala bechatshazelwa yimiba eyahlukeneyo ye-atmospheric, kwaye ukuba bashiywe ukuba bahlale phantsi ixesha elide ngaphandle kokuqaphela, baya kuthatha ukubonakala okunomhlwa.

I-Shrinkage Fracture kunye nokuqhelaniswa

Zezi zakhiwo esizibona kumaqweqwe eemeteorite ezinamatye azenza zibonakale zineentanda. Zibangelwa kukuphola ngokukhawuleza koqweqwe lomhlaba, ukusuka kwelona qondo lobushushu liphezulu elidalwe kukukhuhlana ukuya kutsho kwiqondo lobushushu elilinganayo le-atmosfere, maxa wambi ngaphantsi kweqondo lomkhenkce. Ezi ntanda zingumba obalulekileyo kwimozulu elandelayo yeemeteorites.

Iimeteorite ezisesithubeni zinokujikeleza okanye zigcine intshukumo yomgca, kwaye njengoko zidlula kwiatmosfera zinokutshintsha ngesiquphe okanye zihlale zishukuma de zifike emhlabeni. Yile ndlela inkangeleko yakho inokwahluka ngayo.

Iimeteorites ezijikelezayo ngexesha lekwindla aziyi kuba nepateni yemozulu ekhethwayo kwaye ngenxa yoko aziyi kuqheleka. Iimeteorite ezingajikiyo ziya kuba nokuqhelaniswa okuzinzileyo ngexesha lokuwa, ukwenza ikhowuni enemigca yokhukuliseko olukhethekileyo.

iimeteorites ezisezantsi

Imiphezulu yeemeteorite zamatye iveza ezi ntlobo ze-angular, phakathi kwe80-90º, ezineencam ezingqukuva kunye neencam. Ngokuqhelekileyo banikwa iipolylines.

Regmaglyphs: Ziinotshi ezenziwe kumphezulu ngendlela engqukuva, zikhokone ekuweni kwazo ngenxa yokuziphatha komoya. Iimeteorite zesinyithi zezona zixhaphakileyo.

Imigca yenqwelomoya: Ngexesha lekwindla, umphezulu wemeteorite ufudumala ukuya kutsho kumaqondo obushushu agqithisileyo, nto leyo ebangela ukuba izinto zinyibilike kwaye ziziphathe njengolwelo. Ngexesha logqabhuko-dubulo lwemeteorite, ukuba luyabetha, ukufudumeza nokunyibilika kuyeka ngokukhawuleza. Amathontsi apholile kuqweqwe, enze imigca yokubhabha. Ukongeza ekubunjweni kwayo, ukubunjwa kwayo kunqunywe ngokukodwa ngokujikeleza kwayo kunye nokujikeleza.

umbala kunye nomgubo

Xa iimeteorites zintsha, zihlala zimnyama, kwaye i-fusion crusts ingabonisa i-streamlines kunye neenkcukacha ezinceda ukuchonga. Emva kokulala emhlabeni ixesha elide, i-meteorite itshintsha umbala, i-fusion crust iyaphela, kwaye iinkcukacha ziyanyamalala. I-iron ekwimeteorites, njengentsimbi ekwizixhobo, inokukhuselwa yimozulu.. Njengoko intsimbi ye-ferrous i-oxidizes, ingcolisa i-matrix yangaphakathi kunye nomphezulu wangaphandle welitye. Qala ngamachaphaza abomvu okanye aworenji kuqweqwe olumnyama olunyibilikisiweyo. Ngokuhamba kwexesha, ilitye lonke liya kuba mdaka onomhlwa. I-fusion crust isabonakala, kodwa ayisekho mnyama.

Ukuba sithatha isiqwenga kwaye siyigubungele ngasemva kwi-tile, uthuli olukhuphayo luya kusinika inkcazo: ukuba i-brown, sikrokrela i-meteorite, kodwa ukuba ibomvu, sijongene ne-hematite. Ukuba imnyama ke yimagnetite.

Ezinye iimpawu jikelele

wazi njani ukuba yimeteorite

Nokuba kuthathelwe ingqalelo zonke ezi mpawu ezahlula kwamanye amatye ajikelezileyo, iimeteorite zinezinye iimpawu ekufuneka ziqwalaselwe:

  • Imeteorite ayinayo iquartz
  • Iimeteorite azinayo imibala eyomeleleyo okanye eqaqambileyo, zidla ngokuba mnyama okanye zibe mdaka ngenxa yokuba zitshintshwe yioksijini.
  • Imigca evela kwezinye iimeteorites idla ngokuba mhlophe kwaye ayinambala.
  • Akukho maqamza omoya okanye imingxuma kwiimeteorites, i-95% yeemeteorites idla ngokuba yi-slag.
  • Iimeteorite zesinyithi kunye neemeteorite zesinyithi zitsalwa ngamandla kwimagnethi.

Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga nendlela yokwazi ukuba into oyifumeneyo iyimeteorite okanye hayi.


Umxholo wenqaku uyabambelela kwimigaqo yethu imigaqo yokuziphatha yokuhlela. Ukuxela impazamo cofa apha.

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  1. Uxanduva lwedatha: UMiguel Ángel Gatón
  2. Injongo yedatha: Ulawulo lwe-SPAM, ulawulo lwezimvo.
  3. Umthetho: Imvume yakho
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