tatanan
porphyry wis kawangun rong: magma cools alon jero ing lemah ndhuwur utawa magma punika ndingin kanthi cepet minangka erupts saka gunung mbledhos, nggawe butiran alit sing biasane bisa dideleng nganggo mripat wuda.
rocks cataclasiste utamané mbentuk dening meksa jero ing lumahing bumi, saka panas nemen disebabake magma utawa dening tabrakan kuat lan gesekan lempeng tektonik.
komposisi
isi Mineral
biotite, chert, Feldspar, garnet, grafit, quartz, silika
albite, apatite, augite, biotite, kalsit, enstatite, epidote, Feldspar, micas, muscovite utawa illite, pyroxene, quartz
senyawa isi
aluminium oxide, cao, wesi (iii) oxide, kalium oxide, MgO, sodium oxide, silikon dioksida, titanium dioxide
silikon dioksida
transformasi
metamorphism
✔
✘
✔
✘
jinis metamorphism
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism, hidrotermal metamorphism, impact metamorphism, metamorphism regional
-
cuaca
✔
✘
✔
✘
jinis udan
udan biologi, udan kimia
udan mechanical
erosi
✔
✘
✔
✘
jinis erosi
erosi kimia, erosi gisik, erosi Glacier
erosi gisik, angin erosi