1 Tatanan
1.1 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 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.
1.2 komposisi
1.2.1 isi Mineral
biotite, olivine, plagioclase, pyrrhotite
quartz, Silicon
1.2.2 senyawa isi
al, cao, karbon dioksida, mg, MgO
silikon dioksida
1.3 transformasi
1.3.1 metamorphism
1.3.2 jinis metamorphism
metamorphism kakubur, metamorphism cataclastic, impact metamorphism, metamorphism regional
ora ditrapake
1.3.3 cuaca
1.3.4 jinis udan
udan biologi
ora ditrapake
1.3.5 erosi
1.3.6 jinis erosi
erosi kimia, erosi gisik, erosi Glacier, erosi segara, banyu erosi, angin erosi
erosi kimia