Granite ye faraw ye minnu bɛ kɛ farafinna dugukolo sanfɛla la. U tɛ dɔn kɔgɔjiw jukɔrɔ, hali ni kɔgɔji gun dɔw la, misali la Islande, u jɛnsɛnnen don kosɛbɛ. Granitw Dabɔra farafinna dugukoloko tariku bɛɛ la. Ka kɛɲɛ ni isotopu geochronology ye, fara minnu ka kɔrɔlen don ni granit ye, olu bɛ bɔ san miliyari 3,8 la, ani granit fitininw bɛ san miliyɔn 1-2 bɔ.
Quartz-feldspar granite faraw bɛ farikolow Kɛ minnu ma Bɔ duguma a daminɛ na. Dugukoloko kunnafoniw b’a Jira ko granit farikolow sanfɛla-ɲɔgɔnna-yɔrɔw u jɔli waati la, olu tùn bɛ mɛtɛrɛ kɛmɛ caman juguman na fo ka Se kilomɛtɛrɛ 10-15 ma. Sisan, granitw bɛ kɛnɛ kan k’a sababu kɛ sanfɛla faraw kɔrɔtacogo n’u sɔgɔli kɔfɛ. Jateminɛw fɛ, granitw bɛ kɛ 77% ɲɔgɔn ye tasuma-fanga bɛɛ hakɛ la minnu jɔlen don kosɛbɛ farafinna sanfɛla sanfɛla la.
Granit farikolo minnu bɔra u ka yɔrɔw la ani minnu ma bɔ u nɔ na, olu bɛ yen. Granit minnu bɔra u nɔ na, olu wulila granit magma (granitic magma) donni fɛ ani magma melt (magma) wulilen gɛlɛyali kɔfɛ, a jugumanba dɔ walima a juguman wɛrɛ la. Farikolo minnu dilannen don ni granit wulilenw ye, olu cogoya tɛ kelen ye kosɛbɛ - k’a ta joli misɛnninw na minnu janya ye mɛtɛrɛ 1-10 ye ka se pluton belebelebaw ma, minnu bɛ kilomɛtɛrɛ kɛrɛnkɛrɛnnen kɛmɛ caman ta u bonya la ani tuma caman na u bɛ fara ɲɔgɔn kan ka kɛ plutonic cɛsirilanw ye minnu janyalen don. Ka fara granit plati finmanw kan (< kilomɛtɛrɛ 1-2 jɔlen), plutonw bɛ Dɔn minnu bɛ Taa kilomɛtɛrɛ damadɔ jugumanba la. Misali la, Eldzhurta pluton min bɛ Kaukase Woroduguyanfan na, o tɛmɛna ni kilomɛtɛrɛ naani bɔgɔdaga ye min ma se granit duguma-yɔrɔ ma. Peru kɔgɔjida la Ameriki Saheliyanfan na, granitw bɛ kɛnɛ kan ka tɛmɛ kilomɛtɛrɛ 4 kan ani u bɛ taa fo ka se a juguman ma min ma dɔn fɔlɔ.
Dalilu jɔnjɔn minnu b’a jira ko granit minnu bɔra u nɔ na, olu bɔyɔrɔ magmatiki la, olu ye ninnu ye. A fɔlɔ, granit farikolow jɔli bɛ taa ni lamini faraw sigida bɔgɔlanw ye, minnu b’a jira ko granit sɔgɔlen donna baara la Filanan, granitw ka ɲɔgɔn sɔrɔli kɛrɛfɛ, jatigila faraw ye fɛn caman tigɛli Kɛ minnu sababu Bɔra funteni na. Ni an y’a jateminɛ ni minɛnko jɛkuluw ye minnu wulila o wale in senfɛ, granit farikolow ka funteni fɔlɔ tun ka bon ni granit magma ka solidification funteni ye, o la, o donna jilama cogo la. A laban na, ani sisan, tasuma-fanga-yɔrɔw bɛ ka Kɛ, minnu bɛ na ni magmaw ye minnu bɛ Kɛ granit (granitique) ye.
O ni granit minnu bɔra yɔrɔ wɛrɛ la, olu ni granit minnu jiginna kosɛbɛ, olu danfaralen don kosɛbɛ u bɔyɔrɔ mara sanfɛ, granit minnu ma wuli ka bɔ u nɔ na, olu kɛra kristali ye u bɔyɔrɔ yɛrɛ la. Ni a ka c’a la, granit minnu bɛ wuli ka bɔ u nɔ na, olu ye fara kelenw ye minnu bɛ hakɛ dɔw fa, o tuma na, granit minnu ma wuli ka bɔ u nɔ na, olu ka teli ka sɔrɔ bandiw, lensɛriw, yɔrɔw la minnu suman milimɛtɛrɛ ni santimɛtɛrɛ cɛmancɛ la, minnu bɛ fara ɲɔgɔn kan ni faraw ye minnu danfara tɛ kelen ye. O fɛnɲɛnɛma suguw bɛ Weele ko migmatites (ka Bɔ gɛrɛkikan na migma - ɲagaminen). Taamaʃyɛn jɛlen si tɛ yen min b’a jira ko granit fɛn bɛ don migmatitiw kɔnɔ ni masin ye; tuma caman na, mɔgɔ bɛ hakilina sɔrɔ ko o fɛn in bɛ fɛn fɔlɔ min bila a nɔ na, o bɛ kɛ cogo la min tɛ kɛ. O de kama, hakilinaw Nàna dugukolo-yɔrɔ dɔw ka granit (grani) ko la. Migmatites (migmatites) Dabɔra kilomɛtɛrɛ 5-7 walima ka Tɛmɛ o kan. U yɔrɔba in Dabɔra Precambrian waati la, a bɛ sàn miliyɔn 600 ni kɔ Bɔ; Migmatite caman bɛ san miliyari caman bɔ.
Migmatitiw ni granit kɔrɔw farikolo belebelebaw minnu ma wuli ka bɔ u nɔ na, olu bɛ jate tuma caman na i n’a fɔ granit magma bɔli yɔrɔ gɛlɛnw minnu nana bi dugukolo kan ka da dugukolo kurulen kɔrɔtalen kɔfɛ. Ikomi migmatite complexes (migmatite complexes) minnu sɔgɔlen don kosɛbɛ, olu bɛ bɔ kɛnɛ kan yɔrɔ dɔw la, ani granit (granite) minnu jiginna kosɛbɛ, olu bɛ bɔ kɛnɛ kan yɔrɔ wɛrɛw la, o la, a tɛ se ka kɛ ka jɛɲɔgɔnya tilennenw sɔrɔ u ni ɲɔgɔn cɛ.
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December 18, 2024 17:24:30 +0200 GMT
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