Petrography and Mineral Chemistry of Magmatic and Hydrothermal Biotite in Porphyry Copper-Gold Deposits: A Tool for Understanding Mineralizing Fluid Compositional Changes During Alteration Processes
Penulis/Author
Prof. Dr.rer nat. Ir. Arifudin Idrus, S.T., M.T., IPU. (1)
Tanggal/Date
2018
Kata Kunci/Keyword
Abstrak/Abstract
This study aims to understand the petrography and
chemistry of both magmatic and hydrothermal biotites in porphyry copper-gold deposits, and
to evaluate the fluid compositional changes during alteration processes. A total of 206 biotite
grains from selected rock samples taken from the Batu Hijau porphyry Cu-Au deposit was
analyzed. Detailed petrography and biotite chemistry analysis were performed on thin
sections and polished thin sections, respectively, representing various rocks and alteration
types. A JEOL JXA-8900R electron microprobe analyzer (EMPA) was used for the chemistry
analysis. The biotite is texturally divided into magmatic and hydrothermal types. Ti, Fe, and F
contents can be used to distinguish the two biotite types chemically. Some oxide and
halogen contents of biotite from various rocks and alteration types demonstrate a …
Rumpun Ilmu
Geologi
Bahasa Asli/Original Language
English
Level
Internasional
Status
Dokumen Karya
No
Judul
Tipe Dokumen
Aksi
1
Kompilasi File lengkap.pdf
[PAK] Full Dokumen
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TURNITIN- Petrography and Mineral Chemistry of Magmatic and Hydrothermal Biotite in Porphyry Copper-Gold Deposits_ A Tool for Understanding Mineralizing Fluid Compositional Change.pdf
