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Picrite
Picrite

Anthracite
Anthracite



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Picrite
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Anthracite

Formasi Picrite lan Anthracite

Tatanan

tatanan

picrite punika nggoleki-grained, hard rock 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.
Wangun Anthracite saka klempakan saka lebu tetanduran ing lingkungan rawa. nalika lebu tetanduran mati lan tumiba menyang rawa, banyu ngadeg rawa ngreksa saka bosok.

komposisi

isi Mineral

biotite, olivine, plagioclase, pyrrhotite
kalsit, lempung, mineral lempung

senyawa isi

al, cao, karbon dioksida, mg, MgO
karbon, hidrogen, nitrogen, oksigen, belerang

transformasi

metamorphism

jinis metamorphism

metamorphism kakubur, metamorphism cataclastic, impact metamorphism, metamorphism regional
metamorphism kakubur, kontak metamorphism, metamorphism regional

cuaca

jinis udan

udan biologi
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erosi

jinis erosi

erosi kimia, erosi gisik, erosi Glacier, erosi segara, banyu erosi, angin erosi
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