SEBARAN UNSUR TANAH JARANG DI SEBELAH BARAT LAUT LAPANGAN PANAS BUMI GUNUNG LAWU, KARANGANYAR, JAWA TENGAH
Sari
Sari - Lokasi panas bumi Gunung Lawu terletak di perbatasan Jawa Tengah dan Jawa Timur, Indonesia. Secara spesifik, sumber panas bumi Gunung Lawu pada penelitian ini terletak di sekitar lereng gunung sebelah barat. Hal ini ditandai dengan keberadaan manifestasi berupa air panas pada wilayah Bayanan, Balong dan Ngunut. Manifestasi air panas yang terdapat di permukaan merupakan hasil dari proses interaksi fluida air dengan batuan di bawah permukaan bumi yang kaya akan mineral dan unsur tanah jarang. Sehingga mata air panas yang terbentuk melalui proses ini dapat mengandung unsur tanah jarang dalam jumlah yang signifikan. Penelitian ini bertujuan untuk mengetahui sebaran unsur tanah jarang yang ada di lapangan panas bumi Gunung Lawu khususnya di bagian Barat Laut serta proses interaksi yang terjadi bawah permukaan. Metode yang digunakan untuk mengetahui kandungan unsur tanah jarang dengan menggunakan analisis Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Proses interaksi fluida dengan batuan ditunjukkan oleh beberapa unsur tanah jarang. Belum ada penelitian sebelumnya mengenai interaksi antara batuan dan fluida yang berkaitan dengan unsur tanah jarang di wilayah ini. Oleh karena itu, diharapkan hasil penelitian ini dapat memberikan data dan informasi yang bermanfaat bagi peneliti di masa depan.
Kata Kunci: Panas Bumi, Gunung Lawu, Unsur tanah jarang, ICP-MS
Abstract - Lawu's geothermal field is located between Central Java and East Java, Indonesia. Specifically, Mount Lawu's geothermal resources in this study are located around the mountain's western slopes. This is marked by the existence of manifestations in the form of hot water in the Bayanan, Balong, and Ngunut areas. The manifestation of hot water found on the surface results from a process of interaction of water fluids with rocks beneath the earth's surface rich in minerals and rare earth elements. So hot springs formed through this process can contain significant amounts of rare earth elements. This study aims to determine the distribution of rare earth elements in the Mount Lawu geothermal field, especially in the Northwest part and the interaction processes that occur below the surface. The method used to determine the content of rare earth elements is by using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) analysis. Some rare earth elements show the process of fluid interaction with rocks. There has been no previous research on the interaction between rocks and fluids related to rare earth elements in this region. Therefore, it is hoped that the results of this study can provide valuable data and information for future researchers.
Keyword: Geothermal, Mount Lawu, Rare earth elements, ICP-MS
Kata Kunci
Teks Lengkap:
PDFReferensi
Ahmadi, R., Wahyudi, S., Setijadji, L. D., & Widowati, S. 2018, The Rare Earth Elements Concentration in Geothermal Fluid from Different Geothermal Fields in Indonesia. IOP Conference Series: Earth and Environmental Science, 190(1), 012033.
Akhmanova, M. V., & Ariskin, A. A. (2019). Distribution of REE in thermal waters and gas discharges of Kamchatka Peninsula (Russia). Geofluids, 2019.
Bau, M., & Dulski, P. (2011). Distribution and fractionation of rare earth elements in hydrothermal fluids from the Mid-Atlantic Ridge. Chemical Geology, 287(3-4), 163-180.
Chiaradia, R dan Mörz. 2000, Rare Earth Elements in Geothermal Systems: Controls, Transport and Coprecipitation Mechanisms". Geofluid. 1: 58-78 p.
Hochstein, M. P., dan Browne, P. R. 2000, Surface manifestations of geothermal systems with volcanic heat sources. Encyclopedia of Volcanoes, 1, 835–855 p.
Karpov, G. A., Schroeder, P. A., & Nikolaeva, A. G. (2018). Geochemistry of rare-earth elements in thermal waters of Uzon–Geyzernaya hydrothermal system (Kamchatka). Russian Geology and Geophysics, 59(8), 925-934.
Kusdian, R. 2014, Geochemistry of fluids from the Lahendong geothermal field, North Sulawesi, Indonesia: Constraints from gas and water analyses. Journal of Volcanology and Geothermal Research, 276, 117-127.
Lu, H., Chen, C., Zhang, Z., & Li, Q. 2017, Geochemistry of geothermal water in Xiong'an New Area, Hebei Province, China: Implications for the geothermal system and ore-forming potential. Geothermics, 70, 199-209.
Montaser, A., & Golightly, D. W. 1992, Inductively coupled plasma mass spectrometry. Wiley-Interscience.
Möller, P. 2000, Rare earth elements and yttrium as geochemical indicators of the source of mineral and thermal waters. In I. Stober and K. Bucher (eds): Hydrology of crystalline rocks. Kluwer Acad. Press, 227-246 p.
Nicholson, K. 2012. Geothermal fluids: Chemistry and exploration techniques. Springer Science & Business Media.
Sampurno and Samodra H. 1997, Geological map of Ponorogo sheet Java second edition Center for Geological and Development, Bandung.
Shoedarto, R. M., Tada, Y., Kashiwaya, K., Koike, K., Malik, D., & Iskandar, I. 2020, Application of Rare-Earth Elements in Spring Waters to Indicate Surficial Water-Rock Interaction Process in the Wayang Windu Geothermal Field, Indonesia.
Skoog, D. A., West, D. M., & Holler, F. J. 2013, Fundamentals of analytical chemistry. Cengage Learning.
Sudarman, S., Santoso, M., & Irawan, D. E. 2019, Analisis Kandungan Unsur Besi (Fe) pada Fluida Panas Bumi Sebagai Indikator Kondisi Lingkungan dan Mineralisasi di Daerah Pekon Kebun Teak, Tanggamus, Lampung. Jurnal Geologi Kelautan, 17(2), 99-108.
Van Bemmelen, R. W. 1949, General Geology of Indonesia and adjacent archipelagoes. The geology of Indonesia.
DOI: https://doi.org/10.31315/jmtg.v13i3.9394
DOI (PDF): https://doi.org/10.31315/jmtg.v13i3.9394.g5209
Refbacks
- Saat ini tidak ada refbacks.
##submission.copyrightStatement##
This work is licensed under a Creative Commons Attribution 4.0 International License.