Zamatye zixelwe

Kwindalo, kukho iintlobo ezininzi yamatye: sedimentary, zixelwe kunye ukubona. Bonke bephela amele izimbiwa ezithile ephindeneyo.

Kweli nqaku siza kuxubusha ngokweenkcukacha oko nemetamorphic. Thina bachaze iintlobo, iimpawu kunye neendlela ezisetyenziswa kushishino.

Kodwa ngaphezu kwako konke, kufuneka kukuxelela ukuba ematyeni ezinjalo. Eli gama lisetyenziswa ukubhekisela nohlobo eekhemikhali imichiza leyo akhiwa noqweqwe.

Nemetamorphic iliwa le zibangelwa ukubekwa kumaqondo obushushu aphezulu kunye nzima phezu izimbiwa imvelaphi ukubona okanye ludaka. Le khemikhali Ukubunjwa minerals akuthethi ezilandela iinguqu ezibalulekileyo, kodwa ukufumana texture kunye nolwakhiwo.

izimbiwa abaninzi zixelwe shale ezahlukeneyo (ubukho njengezithole ezingcakacileyo). Olu phawu lubonisa indlela bezimbiwa Ukwakheka (phantsi koxinzelelo). izimbiwa ezifana bayakwazi ukungena imbasa.

Ukuba inkqubo yokuguqulwa ezinye izimbiwa (metamorphism) yenzeka phantsi amanyathelo ubushushu mass izifaka kubunzulu nzulu, kulo mzekelo, nemetamorphic kuya kuba nesakhiwo rogovistuyu. Oku kuboniswa hornfelses (biotite, pyroxene, amphibolite) ukusekwa nodongwe.

Inkqubo metamorphism (inguqu) unokujongana nayiphi Minerals - igneous, ngentlenga okanye imvelaphi zixelwe. Nayiphi utshintshwano eyenziwe ngokusebenzisa recrystallization kwi imeko eziqinileyo emaweni. The degree of nezeenguqu ezenziwa kula izimbiwa ukuqala nga zahlukahlukene kakhulu, ukusuka amancinci kokulungiswa ukuba utshintsho elininzi ubume kunye nokumila ezimbiwa. Uhlobo metamorphism nalo ezahlukeneyo. Oko kunokuthi kwenzeke ukuba itywina elincinane kuphela, okanye agcwalise recrystallization ye wokumbiwa.

Zonke rocks zixelwe imveliso akuboni aphakamileyo. Kuxhomekeka iqondo sokuguqula, kukho iindidi ezininzi yezimbiwa sethutyana:

• The contact. Oku kuvela kwenkolo daka (ukwazisana kwimboniselo kolu qweqwe lomhlaba) kunye nentsebenziswano yawo kunye neetyuwa. Izimbiwa elolu hlobo benziwa phantsi kwempembelelo xi kunye nobushushu. zokubasa amayela nezemarmore, skarn, migmatite. Species contact metamorphism bamhlophe crystalline, ezinkulu, kunye nesakhiwo slabosloistoe saccharoidal, apho ukwakhiwa kwezimbiwa preperpevaet utshintsho olubalulekileyo.
• Zommandla (nzulu). Inkqubo yokuphila ithatha indawo kubunzulu ezinkulu kunye noxinzelelo oluphezulu yentsebenziswano, lobushushu kunye ulwelo. Ukubunjwa mineralogical le kwezimbiwa kulo mzekelo, ndiya kwenza njalo. Ezizalana ezahlukeneyo shale crystalline, isakhiwo tight.
• Ugesi metamorphism. Inkqubo yenguqu lwenzeka kwi ziitectonic plates phantsi koxinzelelo oluphezulu. Xa iintlobo kwezimbiwa baseka ummandla olomeleleyo kuwancede nezibaya ezintsonkothileyo. Ezi ntsalela mylonites kunye ka-taklazity.

rocks Ngesiqhelo nemetamorphic zifumaneka kwindalo ngohlobo imithambo, iyaxela kunye lenses. Badla sigcina ifom eyintsusa ingenzeka izimbiwa, kodwa xa wadibana izimbiwa intrusions daka uya okudodobalisa ezimile.

minerals zixelwe ngentla zisetyenziswa lonke njenge zokuhombisa, isakhiwo kunye nezinto nokuhombisa (quartzite, nezemarmore, schist, gneiss). Kananjalo zisetyenziswa izinto mveliso ekrwada (asbestos, talc, njalo njalo). Indlela emi ngayo nemetamorphic ngokufuthi ibekwe kufuphi iidipozithi yezimbiwa, anqabileyo kunye namatye semi-anqabileyo (lwesardiyo, iemeraldi, jade, garnet, njalo njalo).