tatanan
Wangun Anthracite saka klempakan saka lebu tetanduran ing lingkungan rawa. nalika lebu tetanduran mati lan tumiba menyang rawa, banyu ngadeg rawa ngreksa saka bosok.
rocks adakite sing kawangun nalika cairan hydrous sing dirilis saka mineral sing break mudhun ing basalt metamorfosis, lan munggah menyang lapisan, banjur padha salat leleh sebagean.
komposisi
isi Mineral
kalsit, lempung, mineral lempung
olivine, plagioclase, pyroxene
senyawa isi
karbon, hidrogen, nitrogen, oksigen, belerang
aluminium oxide, MgO, silikon dioksida
transformasi
metamorphism
✔
✘
✔
✘
jinis metamorphism
metamorphism kakubur, kontak metamorphism, metamorphism regional
metamorphism cataclastic, kontak metamorphism, impact metamorphism, metamorphism regional
cuaca
✔
✘
✔
✘
jinis udan
-
udan kimia, udan mechanical
erosi
✔
✘
✔
✘
jinis erosi
-
erosi gisik, erosi segara, banyu erosi