tatanan
rhomb-porphyry punika, hard rock nggoleki-grained kang jinis metasomatite, ateges ngrubah basalt. iku formulir karo utawa tanpa crystallization, salah siji ngisor permukaan minangka rocks intrusive utawa ing lumahing minangka rocks extrusive.
trachyte iku sawijining rock vulkanik igneous karo aphanitic kanggo tektur porphyritic. iku padha karo vulkanik saka syenite rock lan formulir minangka asil diferensiasi magmatic.
komposisi
isi Mineral
Feldspar alkali, biotite, plagioclase, pyroxene
augite, biotite, Feldspar, hornblade, plagioclase, quartz
senyawa isi
cao, cl, MgO
kalium oxide, sodium oxide, silikon dioksida
transformasi
metamorphism
✔
✘
✔
✘
jinis metamorphism
impact metamorphism
metamorphism cataclastic, kontak metamorphism, metamorphism regional
cuaca
✔
✘
✔
✘
jinis udan
udan biologi, udan kimia, udan mechanical
udan biologi, udan kimia, udan mechanical
erosi
✔
✘
✔
✘
jinis erosi
erosi kimia, erosi gisik, erosi Glacier, banyu erosi
erosi kimia, erosi gisik, erosi Glacier, erosi segara, banyu erosi, angin erosi