Identifikasi Keberadaan Rare Earth Elements Tipe Ion Adsorption Pada Lempung: Sampel Dari Muntok Dan Lubuk Besar, Pulau Bangka

Syafrizal, Syafrizal; Hede, Arie Naftali Hawu; Hakim, Andy Yahya Al; Permatasari, Mutiara Indah

doi:10.20527/jg.v7i2.10897

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Pengujian sampel menggunakan XRF, perlu dilakukan pengolahan sampel terlebih dahulu seperti permukaan sampel yang harus datar sempurna. Hal ini untuk menghindari atau meminimalisir error pembacaan yang diakibatkan oleh permukaan sampel yang tidak teratur dikarenakan jarak sumber X-ray ke sampel yang berubah [9].…”

Section: Analisis Dataunclassified

“…Metode XRF merupakan teknik pengujian sampel dengan tujuan mengetahui komposisi dasar yang terkandung pada suatu material dimana sifat pengujiannya yang non destruktif sampel. Hasil pengujian menentukan komposisi kimia sampel dengan membaca sinar X-ray (secondary) yang dipancarkan sampel terhadap sumber utama sinar X-ray (primary) [9].…”

Section: Gambar-6 Penampang 2d Lintasanunclassified

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Identifikasi Keterdapatan Mineral Logam pada Penambangan Quarry di Awang Bangkal, Kabupaten Banjar

Noor

Ishaq²

2023

J. Geosapta

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Daerah Awang Bangkal di Kabupaten Banjar merupakan salah satu daerah sentral penambangan penghasil batuan gunung (split) dengan metode penambangan quarry. Tanah tutupan hasil umumnya tidak dimanfaatkan dan tidak memiliki nilai ekonomis. Produk tanah tutupan penambangan batuan gunung ada kemungkinan memiliki potensi mineral logam yang ekonomis pada saat sekarang maupun masa yang akan datang. Sehingga diperlukan suatu penelitian lebih lanjut mengenai potensi mineral logam pada tanah tutupan penambangan di daerah Awang Bangkal. Metode geolistrik tahanan jenis konfigurasi dipole-dipole 2D digunakan untuk melihat sebaran batuan dan nilai tahanan jenis batuan beku serta kedalamannya. Berdasarkan hasil pemodelan 2D diperoleh sebaran batuan beku lokasi penelitian berbentuk sill dengan adanya indikasi intrusi. Jika dikaitkan dengan tahanan jenisnya, batuan beku merupakan jenis batuan andesit dengan rata-rata kedalaman 7 meter dari permukaan tanah, batuan ini merupakan sumber lapukan mineral yang ada dipermukaan. Untuk memperoleh informasi kandungan mineral logam pada tanah tutupan, diambil tiga sampel secara vertikal yaitu horizon A1 (permukaan), horizon A2, dan horizon A3 menggunakan alat uji XRF. Hasilnya diperoleh tiga jenis mineral logam, yaitu mineral Fe2O3, Al2O3, dan Ni. Mineral Fe2O3 dan Al2O3 zona pengkayaannya terdapat pada horizon A1 sedangkan zona pengkayaan mineral Ni terdapat pada horizon A2.

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Section: Analisis Dataunclassified

Section: Gambar-6 Penampang 2d Lintasanunclassified

Identifikasi Keterdapatan Mineral Logam pada Penambangan Quarry di Awang Bangkal, Kabupaten Banjar

Noor

Ishaq²

2023

J. Geosapta

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Rare earth elements (REEs) in soils and plants of Bangka Island (Indonesia) focussing on (hyper)accumulation

Purwadi,

Erskine,

Hutahaean

et al. 2024

Plant Soil

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Background and Aims Indonesia is one of the most biodiverse regions in the world, but only a few metal hyperaccumulator plants have been reported from this vast country. This study aimed to discover rare earth element (REE) hyperaccumulator plants on Bangka Island, an area known to have REE enriched soils associated with tin placer deposits. Methods Prior to this study, herbarium specimens at the Universitas Bangka Belitung Herbarium were screened using non-destructive X-ray Fluorescence (XRF) scanning to detect specimens with anomalous REE concentrations. Fieldwork was subsequently conducted to collect samples from plant species suspected to be (hyper)accumulators based on the earlier XRF survey. Scanning electron microscopy and micro-XRF were used to verify the possibility of surface contamination by soil particles in plant specimens, and inductively coupled plasma atomic emission spectroscopy (ICP-AES) was used to determine total elemental concentrations in the plant material. Results Blechnopsis orientalis was found to hyperaccumulate REEs up to 3000 µg g−1 as well as arsenic up to 2100 µg g−1. The non-destructive analysis found no dust or soil contamination on B. orientalis specimens, confirming it as a genuine REE and arsenic hyperaccumulator. Additionally, the known REE hyperaccumulator Dicranopteris linearis was confirmed to be a REE hyperaccumulator on Bangka Island. Conclusion Blechnopsis orientalis is a REE hyperaccumulator with high potential for phytoextraction as it is a faster growing and larger species than D. linearis. As B. orientalis and D. linearis are native to Bangka Island, both should be studied further for their application in rehabilitating and extracting REEs from the (abandoned) tin mine areas.

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Features of Reflectance Spectroscopy and Geochemistry Towards REE Mineralization in Weathered Granitic Clays

Nugraha,

Syafrizal,

Hede

2024

IOP Conf. Ser.: Earth Environ. Sci.

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The rising global demand for rare earth elements (REEs) has intensified exploration efforts, particularly in regions like Indonesia with significant REE potential. This study explores the use of reflectance spectroscopy for rapid identification of REE-bearing clay minerals derived from weathered granite in West Kalimantan. Clay samples from distinct weathering horizons were analyzed using X-ray diffraction (XRD), inductively coupled plasma mass spectrometry (ICP-MS), and reflectance spectroscopy. XRD confirmed the presence of kaolinite, dickite, gibbsite, and quartz, indicating their formation as weathering products of the host granite. While ICP-MS revealed that REE concentrations in the clay samples were lower than in the host rock, this observation suggests that the REE enrichment process within the clay minerals may still be ongoing or influenced by specific local geochemical conditions. Reflectance spectroscopy identified key clay minerals based on their characteristic absorption features in the shortwave infrared (SWIR) region. However, direct detection of REE-related absorption features was challenging due to the likely low concentrations and potential masking by iron oxides. This study highlights the potential of reflectance spectroscopy as a valuable tool for initial screening and identification of clay minerals in REE exploration, particularly when combined with other analytical techniques. Further research focusing on enhancing spectral analysis methods and targeting areas with potentially higher REE concentrations will be crucial in maximizing the effectiveness of this technique for REE resource discovery.

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Identifikasi Keberadaan Rare Earth Elements Tipe Ion Adsorption Pada Lempung: Sampel Dari Muntok Dan Lubuk Besar, Pulau Bangka

Cited by 3 publications

References 7 publications

Identifikasi Keterdapatan Mineral Logam pada Penambangan Quarry di Awang Bangkal, Kabupaten Banjar

Identifikasi Keterdapatan Mineral Logam pada Penambangan Quarry di Awang Bangkal, Kabupaten Banjar

Rare earth elements (REEs) in soils and plants of Bangka Island (Indonesia) focussing on (hyper)accumulation

Features of Reflectance Spectroscopy and Geochemistry Towards REE Mineralization in Weathered Granitic Clays

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