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Coquina
Coquina

Dacite
Dacite



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Coquina
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Dacite

Formasi Coquina lan Dacite

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1 Tatanan
1.1 tatanan
Coquina punika rock sedimentary kang kawangun nalika milyar seashell cilik kerang-kaya, disebut Coquina, utawa cockleshell sing die lan Empu sing setor, disarèkaké lan dadi menyang rock nalika meksa wis Applied.
dacitic magma wis kawangun dening subduksi saka lemah ndhuwur enom laut ing piring Continental felsic nglukis. luwih, ing satunggalipun saperangan wis hydrothermally ngrubah minangka quartz lan sodium sing ditambahake.
1.2 komposisi
1.2.1 isi Mineral
apatite, augite, bronzite, kalsit, chert, chlorite, mineral lempung, epidote, Feldspar, garnet, micas, muscovite utawa illite
amphibole, apatite, biotite, Feldspar, garnet, hornblade, magnetite, plagioclase, pyroxene, quartz, zirkon
1.2.2 senyawa isi
cao, karbon dioksida, wesi (iii) oxide, MgO
ca, fe, kalium oxide, mg, kalium, silikon dioksida
1.3 transformasi
1.3.1 metamorphism
1.3.2 jinis metamorphism
ora ditrapake
metamorphism kakubur, metamorphism cataclastic
1.3.3 cuaca
1.3.4 jinis udan
udan biologi, udan kimia, udan mechanical
udan biologi, udan kimia, udan mechanical
1.3.5 erosi
1.3.6 jinis erosi
erosi gisik, erosi segara, banyu erosi, angin erosi
erosi kimia