| NIM | H1C020023 |
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| Namamhs | HENING SUKMA ABYADU |
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| Judul Artikel | Karakteristik Geokimia Batuan Peridotit, Kecamatan Seram Barat dan Sekitarnya, Provinsi Maluku |
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| Abstrak (Bhs. Indonesia) | Daerah Seram Barat berada pada kondisi tektonik yang cukup kompleks sehingga dapat ditemukannya beragam jenis batuan, diantaranya batuan ofiolit. Sampel batuan ofiolit pada lokasi penelitian didapati sudah mengalami proses alterasi dengan ditemukannya mineral hematit dan serpentin, serta adanya mineral logam. Proses pembentukan batuan ofiolit yang cukup kompleks ini menarik untuk diteliti, terutama dari segi geokimianya. Pada pengamatan petrografi karakteristik batuan peridotit di daerah penelitian telah menunjukkan proses alterasi dengan ditemukannya mineral ubahan seperti Antigorite, Chrysotile, Lizardite, Chlorite, Talc, dan Hematite. Serta ditemukan struktur corona pada olivine, ubahan olivine berupa palimsets, dan mineral logam Magnetite, Hematite, dan Galena. Berdasarkan data deskripsi mineral pada petrografi didapatkan penamaan batuan peridotit di daerah penelitian yaitu Lherzolite, Harzburgite, dan Serpentinite. Lalu berdasarkan data geokimia didapatkan penamaan batuan yaitu Peridot Gabbro, asal magma berada di Ocean Ridge and Floor, afinitas magmanya Tholeiite Series dan Calc-Alkaline Series. Evolusi magma menunjukan proses diferensiasi magma meliputi fractional crystallization dan crystal settling dari unsur-unsur Ca, Mg, Fe, Al, dan Ti , dan setting tektonik di daerah penelitian yaitu Bonninite. Setelah itu dilakukan analisis SEM didapatkan data berupa mineral Olivine, jenis mineral Serpentine seperti Antigorite, Chrysotile, serta mineral logam Magnetite, Hematit, dan Galena. |
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| Abtrak (Bhs. Inggris) | The West Seram area is in quite complex tectonic conditions so that various types of rock can be found, including ophiolite rock. Ophiolite rock samples at the research location were found to have undergone an alteration process with the discovery of hematite and serpentine minerals, as well as the presence of metallic minerals. The process of forming ophiolite rocks, which is quite complex, is interesting to study, especially from a geochemical perspective. Petrographic observations of the characteristics of peridotite rocks in the research area have shown an alteration process with the discovery of alteration minerals such as Antigorite, Chrysotile, Lizardite, Chlorite, Talc and Hematite. And corona structures were found in olivine, changes in olivine in the form of palimsets, and the metal minerals Magnetite, Hematite, and Galena. Based on mineral description data in petrography, the names of the peridotite rocks in the research area are Lherzolite, Harzburgite and Serpentinite. Then, based on geochemical data, the name of the rock was obtained, namely Peridot Gabbro, the origin of the magma was in the Ocean Ridge and Floor, the magma affinity was Tholeite Series and Calc-Alkaline Series. Magma evolution shows the magma differentiation process including fractional crystallization and crystal settling of the elements Ca, Mg, Fe, Al, and Ti, and the tectonic setting in the research area, namely Bonninite. After SEM analysis was carried out, data was obtained in the form of Olivine minerals, Serpentine mineral types such as Antigorite, Chrysotile, as well as the metal minerals Magnetite, Hematite and Galena. |
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| Kata kunci | Batuan Peridotit, Geokimia, Afinitas Magma, Tektonik, Pulau Seram |
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| Pembimbing 1 | Mochammad Aziz, S.T., M.T. |
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| Pembimbing 2 | Dr. Eng. Iwan Setiawan, S.T., M.T. |
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| Pembimbing 3 | |
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| Tahun | 2024 |
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| Jumlah Halaman | 10 |
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| Tgl. Entri | 2024-05-13 10:44:59.84827 |
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