Mafika Metamorphic

Ka tlhaho, ho na le mefuta e sa tsoaneng 'maloa a mafika: sedimentary, metamorphic le magmatic. Kaofela ha bona ba emela komponeng itseng le liminerale.

A sehloohong sena a re tla tšohla ka ho qaqileng hore na majoe metamorphic. Re hlalosa e le mefuta e, litšobotsi tse le mekhoa tsa tšebeliso lefapha.

Empa ka holim'a tsohle, e lokela ho u bolella hore majoe a joalo. lentsoe lena le sebelisitsoe ho hlalosa mofuta lik'hemik'hale tsa metsoako le tse thehoa ka karolong e ka holimo ea.

Metamorphic mafikeng ke ka lebaka la ho pepesehela thempereichara e phahameng le khatello e matla ka liminerale se hlahang ho yona magmatic kapa sedimentary. The lik'hemik'hale ea liminerale ha feta liphetoho tse khōlō, empa ba be le botenya le lecha le sebopeho.

Tse ngata metamorphic liminerale tse shale fapaneng (ho ba teng ha mahlōmela tšesaane). bath Sena se bontša matsoai sebopeho mokhoa (le tlas'a khatello). liminerale joalo na le matla a ho senya ka poleiti mosesaane.

Ha tshebetso ya ho fetola ba bang ba liminerale tse ling (metamorphism) le hlaha ka tlas'a bohato la mocheso le boima intrusive ka botebo e sa tebang, tabeng ena, majoe metamorphic tla ba le mohaho o rogovistuyu. Sena se bonahatsoa ke hornfelses (biotite, pyroxene, amphibolite) thehoa ya letsopa.

Tshebetso ya ho metamorphism (phetoho) o ka tlas'a liminerale efe kapa efe - igneous, sedimentary kapa hlahang ho yona metamorphic. lengths e entsoeng ka majoe le ka recrystallization ka mmuso tiileng. Tekanyo ea ho phetoho ea liminerale qalang ka tse fapa-fapaneng haholo, ho tloha ho tse nyenyane diphetolo ho liphetoho e khōlō ka sebopeho le sebopeho sa magala ena. Mofuta wa metamorphism e fapaneng hape. Ho ka etsahala feela tiiso e nyenyane, kapa a ka phetha recrystallization ea matsoai ka.

mafika All metamorphic ke sehlahisoa tlhaho se mahareng. Ho itšetlehile ka tekanyo e sa ho sokoloha, ho na le mefuta e 'maloa ea liminerale phetoho:

• The lebitso. E hlaha ho tswa ho intrusion la seretse se chesang (selelekela ka karolong e ka holimo ea lefatše) le sebelisana lona le sediments ena. Liminerale tsa mofuta ona li thehoa le tlas'a tšusumetso ea khatello le mocheso. magala joalo amana mabole, skarn, migmatite. Mefuta e ka ikopanya le metamorphism ke bogolosegolo bonaletsang, matla, 'me saccharoidal slabosloistoe sebopeho, ao ho' ona ea ho hlophisoa oa liminerale preperpevaet liphetoho tse khōlō.
• Regional (tebileng). phetolo thulaganyou e etsahala ka bolibeng moholo le phahameng khatello ea sebelisana, mocheso le maro a. Sebopeho mineralogical ea liminerale tabeng ena, ke se ke kamehla. Bakang fapaneng bonaletsang shale, sebopeho thata.
• Dynamo metamorphism. Tsela ntlafalo le hlaha ka lipoleiti tectonic tlas'a khatello e phahameng. Ka mefuta e fapaneng ya le liminerale theha libaka matla ea putlama 'me lemenong rarahaneng. Mesaletsa ee ke mylonites le Ka-taklazity.

mafika hangata metamorphic li fumanoa mofuta ka mokgwa wa methapong, strata le lilense. Hangata ba ne ba a boloke ka foromo ea pele ea ketsahalo e matsoai, empa ha a kopana le liminerale intrusions seretse se chesang ka irregularly hare.

Metamorphic liminerale tse sebelisoang lefatšeng ka bophara ka le khabisitsoeng le, ho haha le ho lintho tse bonahalang mekhabiso (quartzite, 'mabole, schist, gneiss). Ba ne ba boetse ba sebelisa e le thepa ea indasteri e tala (asbestos, talc, joalo-joalo). Mofuta wa mafika metamorphic hangata e haufi le mobung oa liminerale, bohlokoa le seka-mahakwe (rubi, emeralde, jade, Garnet, joalo-joalo).