tatanan
nephelinite 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.
gneiss punika bahan dhuwur metamorphic rock IE wis ngalami luwih Suhu lan tekanan saka Schist. iku kawangun dening metamorfosis saka wangun gneiss saka rock vulkanik, krikel utawa granitie.
komposisi
isi Mineral
clinopyroxene, nepheline, plagioclase
biotite, chlorite, Feldspar, garnet, grafit, hornblade, micas, muscovite utawa illite, quartz, Quartzite, silika, zirkon
senyawa isi
ca, cao, karbon, cl, MgO
aluminium oxide, NaCl, cao, wesi (iii) oxide, feo, kalium oxide, Magnesium karbonat, MgO, keda, fosfor pentoxide, silikon dioksida, titanium dioxide
transformasi
metamorphism
✔
✘
✔
✘
jinis metamorphism
kontak metamorphism
impact metamorphism
cuaca
✔
✘
✔
✘
jinis udan
udan biologi, udan kimia, udan mechanical
udan biologi, udan mechanical
erosi
✔
✘
✔
✘
jinis erosi
erosi kimia, banyu erosi, angin erosi
erosi kimia, erosi gisik, erosi segara