ganZi qarTuli miwisa

ulebiT arCeven: aglomeratul, breqCiisebr, marcvlovan,
pemzisebr, mkvriv, forovan saxesxvaobebs.
pemza
pemza zogadi terminia, minisebri forovani
rioliTebisa da traqitebis saxesxvaobaa. wyalSi
tivtivebs. igi forovani, Rrublisebri, daCvretili,
minisebri, vulkanuri qania. mas, qvis Rrubelsac
uwodeben. saxelwodeba laTinuria – `pemeqs~ – qafs
niSnavs; warmoiSoba vulkanuri amofrqvevis dros,
orTqlisa da mJave lavebis gacivebiT. am SemTxvevaSi,
didi raodenobiT gamoyofili airi lavis zeda nawils
aZlevs forovan agebulebas; pemzis forianoba 80%-mde
aRwevs, simagre daaxloebiT 6-ia, feri – TeTri, Ria
nacrisferi, moyviTalo-mowiTalo, vardisferi, yavisferi,
moSavo. dneba 1300-1450 0 C-ze, susti siTbogamtaria, zedapiri
mqrqali, minisebri aqvs.
pemza qimiuri SedgenilobiT mJave lavas Seesabameba.
struqtura – forovani msxvilforovani, grZelboWkovani.
lavasTanmimarTebaSi, pemza SeiZleba iyos rioliTurliparituli,
andezituri, dacituri, traqituli, bazalturi.
igi damoukideblad qmnis masivebs, magram gvxvdeba
vulkanur nakadebSi qerqis, zogjer ki Tavisuflad
amosrolili bombis an lapilis saxiT.
pemzis maRalabraziul Tvisebas gansazRvravs forovani
struqtura da forebs Soris vulkanuri minis
Txeli firfitebis – tixrebis arseboba. pemzis xarisxi
damokidebulia, Tu ramdenad Tanabrad aris masSi ganawilebuli
forebi da ramdenad mkvrivia mina. abraziuli
pemzisTvis mavnebelia CanarTebi, romlebic arRvevsqanis
erTgvarovnebas.
211