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All Journal TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Pendidikan Geografi Undiksha Geological Engineering E-Journal Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geosains dan Teknologi Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Jurnal Ilmiah Pariwisata Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Rinal Khaidar Ali
Tim Eksplorasi PT Erde Ressourcen
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

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Analisis Kualitas untuk Optimasi Pemanfaatan Potensi Sumber Daya Mineral Non Logam dan Batuan di Kecamatan Lumbir, Kabupaten Banyumas Ali, Rinal Khaidar; Qadaryati, Nurakhmi; Widadi, Sigit
TEKNIK Vol 40, No. 3 (2019): Desember 2019
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1119.257 KB) | DOI: 10.14710/teknik.v39i3.21889

Abstract

Kecamatan Lumbir, Kabupaten Banyumas mempunyai sumber daya mineral non logam berupa lempung dan sumber daya batuan berupa andesit dan batupasir. Analisis sebaran, jenis, dan kualitas diperlukan untuk optimasi pemanfaatan sumber daya alam tersebut. Analisis laboratorium meliputi analisis XRD (X-Ray Diffractometry), XRF (X-ray Fluoroscence) dan analisis kuat tekan batuan. Analisis XRF menunjukan lempung di daerah Lumbir mempunyai unsur SiO2 yang tinggi (berkisar antara 39 – 54,5 %) sehingga dapat dijadikan bahan campuran dalam pembuatan semen, gerabah kasar, dan batu bata. Sumber daya batuan berupa andesit di Desa Canduk dan Desa Parung Kamal memiliki nilai Kuat Tekan Ultimit (qu) berkisar antara 247,7547 kg/cm2 - 45,4674 kg/cm2, sehingga dapat digunakan sebagai batu hias dan batupasir di Desa Karanggayam dapat dijadikan tanah urug
Hubungan Ukuran Butir Terhadap Kadar Nikel pada Zona Saprolit Endapan Nikel Laterit Site Moronopo, Kabupaten Halmahera Timur, Maluku Utara Winarno, Tri; Ali, Rinal Khaidar; Komala, Resa
TEKNIK Vol. 43, No. 1 (2022): May 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v43i1.40277

Abstract

The research was conducted at the Dinding A and Dinding B, Moronopo Site PT Antam Tbk, East Halmahera, North Maluku which is a block that has been opened for the mining process. Generally the stratigraphy of laterite nickel deposits, from top (young) to bottom (old) consists of overburden, limonite, saprolite and bedrock. The saprolite zone is an economical ore layer for Ni content. This research aims to determine the relationship between grain size of ore and the mineralogy and economical Ni content. The research methods used include the grain size fractionation method with sizes of -5 cm, +5 cm, +10 cm, +15 cm, +20 cm and +25 cm, and XRF analysis to determine the Ni content. The result of this study shows the rocks in the saprolite zone containing minerals such as olivine, serpentine, garnierite and chrysoprase. The XRF analysis result shows the highest Ni content is found in the finest grain fraction (-5 cm) i.e. 2.4% and the lowest Ni content found in the coarsest grain fraction (+25 cm) i.e. 1.87 % but  is still classified as economic.
Co-Authors Abdurrahman, Rais Brian Ainul Fatayatis Salamah Dalimunte, Hasnan Luthfi fahrudin Ferdy Jamalulail, Muhammad Ainurrofiq Komala, Resa Kurniasih, Anis Langit, Wesly Rambu Najib Noorbasith Al Fajri Qadaryati, Nurakhmi Ringga, Anita Galih Setyawan, Reddy Thomas Triadi Putranto, Thomas Triadi Tri Winarno Wahyu Budhi Khorniawan Wahyu Kurniawan Widadi, Sigit Widiarso Dian Agus Wijaya, Ennur Kusuma Yoga Aribowo