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Anorthosite
Anorthosite

Chert
Chert



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Anorthosite
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Chert

Formasi Anorthosite lan Chert

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Tatanan

tatanan

anorthosite punika phaneritic, intrusive rock igneous kang ditondoi dening predominance saka plagioclase Feldspar kang meh 90-100%, lan komponèn mafic tithik.
Wangun chert nalika microcrystals silikon dioksida tuwuh ing endapan alus sing dadi watu gamping utawa kapur. tatanan chert bisa dadi salah siji saka asal kimia utawa biologi.

komposisi

isi Mineral

amphibole, clinopyroxene, ilmenite, magnetite, olivine, orthopyroxene
quartz, Silicon

senyawa isi

ca, cao, krom (iii) oxide, MgO, trioxide belerang
silikon dioksida

transformasi

metamorphism

jinis metamorphism

metamorphism cataclastic, kontak metamorphism
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cuaca

jinis udan

udan biologi
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erosi

jinis erosi

erosi kimia, angin erosi
erosi kimia