tatanan
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.
Wangun krikel nalika partikel lempung banget nggoleki-grained sing setor ing banyu kang dumunung ing ngisor banyu badan. lagi mengko compacted Empu mbentuk krikel.
komposisi
isi Mineral
biotite, chlorite, Feldspar, garnet, grafit, hornblade, micas, muscovite utawa illite, quartz, Quartzite, silika, zirkon
albite, biotite, kalsit, chert, chlorite, dolomite, hematite, micas, muscovite utawa illite, pyrite, quartz, silika, sulfides
senyawa isi
aluminium oxide, NaCl, cao, wesi (iii) oxide, feo, kalium oxide, Magnesium karbonat, MgO, keda, fosfor pentoxide, silikon dioksida, titanium dioxide
ca, fe, mg, silikon dioksida, sodium
transformasi
metamorphism
✔
✘
✔
✘
jinis metamorphism
impact metamorphism
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cuaca
✔
✘
✔
✘
jinis udan
udan biologi, udan mechanical
udan biologi, udan kimia, udan mechanical
erosi
✔
✘
✔
✘
jinis erosi
erosi kimia, erosi gisik, erosi segara
erosi kimia, erosi gisik, erosi Glacier