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.
itacolumite punika rock sedimentary kang formulir saka clasts wedhi-ukuran cemented lan jinis sandstone.
isi Mineral
kalsit, lempung, mineral lempung
kalsit, lempung, mineral lempung, Feldspar, micas, quartz
senyawa isi
karbon, hidrogen, nitrogen, oksigen, belerang
aluminium oxide, cao, wesi (iii) oxide, kalium oxide, MgO, sodium oxide, silikon dioksida
jinis metamorphism
metamorphism kakubur, kontak metamorphism, metamorphism regional
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jinis udan
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udan biologi, udan kimia
jinis erosi
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erosi kimia, erosi gisik, angin erosi