Yuav ua li cas thiaj paub yog tias nws yog meteorite

Yuav ua li cas paub yog tias koj pom dab tsi yog lub meteorite

Meteorites yog cov pob zeb loj uas muaj peev xwm nkag mus rau lub ntiaj teb huab cua thiab xaus rau ntawm lub ntiaj teb ntog. Txawm li cas los xij, thaum peb pom lub pob zeb loj uas muaj qee yam ntxwv, nws nyuaj heev yuav ua li cas thiaj paub tias nws yog meteorite los yog pob zeb.

Vim li no, peb yuav muab tsab xov xwm no qhia koj yuav ua li cas thiaj paub tias yam koj tau pom yog lub meteorite los tsis yog thiab nws cov yam ntxwv thiab keeb kwm yog dab tsi.

Yuav ua li cas thiaj paub yog tias nws yog meteorite

ponferrada meteorite

Cov pob meteorites poob rau ntawm peb lub ntiaj teb tsis tu ncua los ntawm qhov chaw sab nrauv. Lawv feem ntau poob rau hauv dej hiav txwv lossis thaj chaw uas tsis siv, yog li nws tsis tuaj yeem nrhiav tau ib daim ntawm lub hnub qub nyob rau qhov chaw. Yog tias koj pom ib lub pob zeb hauv thaj teb uas koj nyiam, koj tuaj yeem siv cov tswv yim no kom pom tias nws yog ib yam dab tsi tawm ntawm lub ntiaj teb no.

Ib tug hlau nplaum yuav nyiam ib tug ferromagnetic meteorite. Yog tias nws tau ze rau cov hlau nplaum thiab tsis lo, nws yuav tsis yog ferromagnetic meteorite. Tsuas yog meteorites uas lo rau cov hlau nplaum yog suav tias yog ferromagnetic.

Regmaglypts yog molding nyob rau saum npoo ntawm cov pob zeb dub los yog xim av. Yuav luag tag nrho cov pob zeb dub yog xim dub dua li cov pob zeb ib txwm muaj thiab muaj moldings ntawm lawv qhov chaw. Qhov hnyav yog lwm qhov tseem ceeb heev. Lawv hnyav heev, hnyav rau ntawm nruab nrab ntawm 4 mus rau 8 grams ib cubic centimeter.

Yog tias koj tseem tsis tau paub meej, koj tuaj yeem polish lub pob zeb nrog dej-raws li los yog paste-based sandpaper. Meteorites feem ntau zoo li hlau thaum polished. Thaum pom lub asteroid, nws yuav tsum mus rau lub tuam tsev geology rau kev tshuaj xyuas. Cov kev ntsuam xyuas txiav txim siab seb lub asteroid tiag tiag yog qhov nws yuav tsum yog (ib qho seem ntawm lub hnub qub uas poob). Yog tias lub hnub qub dhau qhov kev xeem 9 saum toj no, nws yuav suav tias yog qhov tseeb.

Nyob nruab nrab ntawm Mars thiab Jupiter yog qhov chaw uas qee tus ntseeg tias muaj lub ntiaj teb puas tsuaj hauv kev tsim lub hnub ci. Ntau lab ntawm cov pob zeb me me thiab pob zeb tau xav tias tau tsim txoj siv lub hnub qub, tom qab qhov xav tau ntau lab ntawm cov khib nyiab. Qee lub sij hawm ib qho ntawm cov asteroid ntog tawm ntawm lub orbit thiab tsoo nrog lub ntiaj teb.

Kev kawm paub yuav ua li cas paub yog tias nws yog meteorite

cov yam ntxwv ntawm cov hnub qub

fusion crust

Cov khoom tsaus nti nyob ib ncig ntawm lub meteorite, yog tias nws tsis tawg ntawm qhov cuam tshuam, yog qhov txawv ntawm lub meteorite los ntawm lwm cov seem uas peb tuaj yeem pom. Lub pob zeb ntawm cov pob zeb meteorites feem ntau yog tuab dua li cov hlau meteorites, tsis ntau tshaj 1 hli tuab.

Lub plhaub ntawm pob zeb meteorites muaj amorphous silica (ib hom iav) sib xyaw nrog cov hlau nplaum, uas yog los ntawm cov silicates thiab hlau uas ua rau feem ntau pob zeb meteorites.

Cov txheej txheej ntawm cov hlau meteorites yog tsim los ntawm hlau oxide hu ua magnetite, uas feem ntau yog submillimeter. Lawv feem ntau cuam tshuam los ntawm cov xwm txheej huab cua sib txawv, thiab yog tias lawv raug tso rau hauv av ntev ntev yam tsis tau pom, lawv yuav ua rau lub ntsej muag xeb.

Shrinkage Fracture thiab Orientation

Lawv yog cov qauv peb pom hauv cov pob zeb ntawm qee cov pob zeb meteorites uas ua rau lawv tshwm tawg. Lawv tshwm sim los ntawm qhov txias txias ntawm lub ntiaj teb crust, pib los ntawm qhov kub siab tshaj plaws tsim los ntawm kev sib txhuam kom sib npaug atmospheric kub, qee zaum hauv qab khov. Cov kab nrib pleb no yog qhov tseem ceeb hauv huab cua tom ntej ntawm meteorites.

Meteorites nyob rau hauv qhov chaw tuaj yeem tig los yog tuav ib qho kev tawm suab, thiab thaum lawv dhau los ntawm cov huab cua lawv tuaj yeem hloov pauv lossis nyob twj ywm kom txog thaum lawv ncav cuag hauv av. Qhov no yog li cas koj qhov tsos tuaj yeem sib txawv.

Meteorites uas tig thaum lub caij nplooj zeeg yuav tsis muaj cov qauv huab cua nyiam thiab yuav yog qhov tsis sib xws. Cov meteorites tsis tig yuav muaj kev taw qhia ruaj khov thaum lub caij nplooj zeeg, tsim lub khob hliav qab nrog cov kab nyiam yaig.

angular meteorites

Qhov chaw ntawm cov pob zeb meteorites nthuav tawm cov duab angular, nruab nrab ntawm 80-90º, nrog cov kab ntsug thiab cov npoo. Lawv feem ntau yog muab los ntawm polylines.

Regmaglyphs: lawv yog notches ua rau ntawm qhov chaw nyob rau hauv ib tug kheej kheej txoj kev, conical nyob rau hauv lawv lub caij nplooj zeeg vim tus cwj pwm ntawm huab cua. Metallic meteorites yog cov feem ntau.

Davhlau kab: Thaum lub caij nplooj zeeg, lub meteorite nto heats mus rau qhov kub thiab txias, ua rau cov khoom yaj thiab coj zoo li cov kua dej. Thaum lub sij hawm meteorite tawg, yog tias nws tsoo, cov txheej txheem cua sov thiab melting dheev nres. Cov tee dej txias rau ntawm daim tawv nqaij, tsim cov kab khiav. Ntxiv nrog rau nws cov muaj pes tsawg leeg, nws cov duab feem ntau yog txiav txim siab los ntawm nws txoj kev taw qhia thiab kev sib hloov.

xim thiab hmoov

Thaum cov meteorites tshiab, lawv feem ntau yog xim dub, thiab lawv cov fusion crusts tuaj yeem qhia streamlines thiab cov ntsiab lus uas pab txheeb xyuas lawv. Tom qab pw hauv av tau ntev, lub meteorite hloov xim, fusion crust hnav, thiab cov ntsiab lus ploj. Cov hlau hauv meteorites, zoo li cov hlau hauv cov cuab yeej, tuaj yeem oxidized los ntawm huab cua.. Raws li cov hlau ferrous oxidizes, nws paug cov matrix sab hauv thiab sab nrauv ntawm pob zeb. Pib nrog liab los yog txiv kab ntxwv specks nyob rau hauv melted dub crust. Thaum lub sij hawm, tag nrho cov pob zeb yuav tig rusty xim av. Lub fusion crust tseem pom, tab sis nws tsis yog dub lawm.

Yog tias peb muab ib daim thiab rub nws tawm tsam tom qab ntawm cov pobzeb, cov hmoov av uas nws tso tawm yuav ua rau peb pom: yog tias nws yog xim av, peb xav tias lub meteorite, tab sis yog tias nws yog xim liab, peb tab tom cuam tshuam nrog hematite. Yog hais tias nws yog dub ces nws yog magnetite.

Lwm yam yam ntxwv

yuav ua li cas thiaj paub tias nws yog meteorite

Txawm hais tias noj mus rau hauv tus account tag nrho cov yam ntxwv uas paub qhov txawv ntawm lwm cov pob zeb nyob ib puag ncig, meteorites muaj lwm yam ntxwv uas yuav tsum tau xav txog:

  • Lub meteorite tsis muaj quartz
  • Meteorites tsis muaj xim muaj zog lossis ci, lawv feem ntau yog xim dub lossis xim av vim lawv tau hloov pauv los ntawm oxygen.
  • Cov streaks uas tshwm sim ntawm qee qhov meteorites feem ntau yog dawb thiab tsis muaj xim.
  • Tsis muaj cua npuas lossis kab noj hniav hauv meteorites, 95% ntawm cov meteorites feem ntau yog slag.
  • Metallic meteorites thiab metallic meteorites muaj zog txaus nyiam rau cov hlau nplaum.

Kuv vam tias nrog cov ntaub ntawv no koj tuaj yeem kawm paub ntxiv txog yuav ua li cas thiaj paub tias yam koj tau pom yog lub meteorite lossis tsis.


Cov ntsiab lus ntawm tsab xov xwm ua raws li peb cov ntsiab cai ntawm kev tswj hwm kev ncaj nceesCov. Tshaj tawm ib qho yuam kev nyem no.

Yog thawj tus tuaj tawm tswv yim

Tso koj saib

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  1. Lub luag haujlwm rau cov ntaub ntawv: Miguel Ángel Gatón
  2. Lub hom phiaj ntawm cov ntaub ntawv: Tswj SPAM, kev tswj xyuas tawm tswv yim.
  3. Sau raws cai: Koj kev tso cai
  4. Kev sib txuas lus ntawm cov ntaub ntawv: Cov ntaub ntawv yuav tsis raug xa mus rau lwm tus neeg thib peb tsuas yog los ntawm kev txiav txim siab raug cai.
  5. Cov ntaub ntawv khaws cia: Cov Ntaub Ntawv khaws tseg los ntawm Occentus Networks (EU)
  6. Txoj Cai: Txhua lub sijhawm koj tuaj yeem txwv, rov qab thiab tshem tawm koj cov ntaub ntawv.