MINERALISASI ENDAPAN SINABAR DAERAH BUKIT TEMBAGA KECAMATAN HUAMUAL, KABUPATEN SERAM BAGIAN BARAT, MALUKU

MINERALIZATION OF CINNABAR DEPOSIT AT TEMBAGA HILL, HUAMUAL DISTRICT, WESTERN SERAM REGENCY, MALUKU

Authors

  • Herfien Samalehu Dinas Energi dan Sumber Daya Mineral, Pemerintah Daerah Provinsi Maluku Author
  • Arifudin Idrus Universitas Gadjah Mada Author
  • Nugroho Imam Setiawan Universitas Gadjah Mada Author

DOI:

https://doi.org/10.47599/bsdg.v17i1.348

Abstract

Iha – Luhu is located in the western part of Seram Island, Maluku which is placed at an elevation of 9 up to 341 meters above sea level and occupies Taunusa Metamorphic Complex. This study aims to study geological control, mineralization characteristics and ore geochemistry of cinnabar deposit in Iha - Luhu. Research method applies a literature review, fieldwork for sampling, geological mapping, alteration & mineralization and laboratory analysis including polished section, ore geochemistry (FA/AAS and ICP-AES, XRF) and elemental mapping (Micro-XRF).

 

The results showed that characteristics of cinnabar deposits in Iha – Luhu were formed in two type of veins (fracture-related mineralization) and disseminated in metapelites and quartz-muscovite phyllite hostrocks and controlled by NNW-SE and NE- SW trending faults. Mineralization consists of cinnabar (±metacinnabar), arsenopyrite, stibnite, sphalerite, hematite, minor pyrite±pyrrhotite with gangue minerals consisting of quartz, illite, smectite and kaolinite. Cinnabar ore contains an abundance of Zn, Sb, Fe, As, indicating presence of precious metal (gold) and mercury (Hg) content reaching 72.4%.

References

Dini, A., Benvenuti, M., Lattanzi, P., Tanelli, G., 2001. Mercury deposits in metamorphic settings; the example of Levigliani and Ripa mines, Apuane alps (Tuscany, Italy). Ore geology review, 18, 149-167.

Hernandez, A., Jebrek, M., Higueras, P., Oyarzun, R., Morata, D., Munha, J., 1999. The Almaden mercury mining district-Spain. Miner depos, 34, 539-548

Jebrak, M., Hernandes, A., 1995. Tectonic deposition of mercury in the Almaden district, Las Cuevas deposit, Spain. Miner depos, 30, 413-423.

Kemp, G., Mogg, W., 1992. A re-appraisal of the geology, tectonics and prospectivity of Seram Island, Eastern Indonesia. Proceedings of Indonesian Petroleum Association 21st Annual Convention, 521–552

Patria, A., Hall, R. 2018. Oblique Intraplate Convergence of the Seram Trough, Indonesia. Bulletin of the Marine Geology, 33, 41 – 58

Pownall, J.M., Hall, R. and Watkinson, I.M. 2013. Extreme extension across Seram and Ambon, eastern Indonesia : evidence for Banda slab rollback. Solid Earth, 4: 277–314.

Pownall, J.M., Forster, M.A., Hall, R., Watkinson I.M., 2017. Tectonometamorphic evolution of Seram and Ambon, eastern Indonesia: Insights from 40Ar/39Ar geochronology. Gondwana research, 44, 35-53

Rytuba, J.J., 1986. Descriptive model of silica-carbonate Hg, in Cox, D.P., singer, D.A., mineral deposit models. U.S. geological survey bulletin 1693, 181

Rytuba, J.J., Rye, R.O., Hernandez, A.M., Deen, J.A., Arribas, A., Sr., 1988, Genesis of Almaden-type mercury deposits, Almaden-Spain. 28th International Geologic Congress abstracts with program, 2-741

Samalehu, H., 2021. Geologi, karakteristik dan mineralisasi hidrotermal batuan metamorf kompleks Tehoru dan Taunusa di Pulau Seram, Indonesia. Disertasi. Universitas Gadjah Mada, Yogyakarta.

Tjokrosapoetro, S., Achdan, A., Suwitodirdjo, S., Rusmana, E.,Abidin, H.Z., 1993. Pemetaan Geologi lembar Masohi sekala 1 : 250.000. Pusat Penelitian dan Pengembangan Geologi, Bandung.

Tjokrosapoetro, S., Budhitrisna, T., 1982. Geology and tectonics of the northern Banda Arc. Bulletin of the Indonesian Geological Research and Development Centre, 6, 1–17.

Velebil, D., Zacharias, J., 2013. Fluid inclusion study of the Horny Luby cinnabar deposit, saxothuringian Zone, Bohemian Massif : clues for the metamorphic remobilization of mercury. Journal of geoscience, 58, 283-298.

Downloads

Published

2022-06-29

Issue

Vol. 17 No. 1 (2022): Buletin Sumber Daya Geologi

Section

Buletin Sumber Daya Geologi

License

Authors whose manuscripts are published in Buletin Sumber Daya Geologi agree to the following terms:

  1. Publication rights to all published materials are held by Buletin Sumber Daya Geologi with the knowledge of the authors, while the moral rights remain with the authors.
  2. All articles are published under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0).
  3. Under this license, anyone may copy, redistribute, and adapt the work for non-commercial purposes, provided that appropriate credit is given to the authors and the journal, a link to the license is provided, any changes are indicated, and adapted works are distributed under the same license.
  4. Commercial use of the published material requires written permission from the publisher.
  5. Authors may deposit the published version of their article in institutional repositories, personal websites, or academic networks, provided that the original publication in Buletin Sumber Daya Geologi is acknowledged with its DOI.