1887

Abstract

Summary

The research area is located in Neglasari, Cibeber, Lebak, Banten. As we know that western Java has a big potential in mineral deposits especially epithermal deposits and one of them was found in this studied area. This study aims to understand the geological and hydrothermal alteration as well as the mineralization characteristic in studied area. Surface geological mapping is used to know the geological condition including lithologies and structural geology also hydrothermal alteration distribution. Five representative ore vein samples were analyzed using FA-AAS method to determine the grade of precious and base metal contents. The lithologies found in this area can be divided into 3 unit stratigraphically that is sandstone unit, tuff breccia unit and andesitic lava unit while the structural geology are strike slip fault, normal fault and some joints. There are 4 alteration zone that is silification zone, clay-silica zone, clay zone and chlorite-epidote zone. The mineralization mostly found as hydrothermal veins which can be divided into two type that is precious metal bearing vein or usually called as low sulfidation type and base metal bearing vein or usually called as intermediate sulfidation.

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/content/papers/10.3997/2214-4609.201800353
2018-04-09
2020-05-26
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References

  1. Corbett, G.
    , 2013, Wolrd Gold Pacific Rim Epithermal Au-Ag, Keynote address for - World Gold Conference, Brisbane26–27 September 2013.
    [Google Scholar]
  2. Einaudi, M. T., Hedenquist, J. W., Inan, E. E.
    , 2003, Sulfidation state of Fluids in active and Extinct Hydrothermal Systems: Transitions from Porphyry to Epithermal Environmnets: Society of Economic Geologists and Geochemical Society Special Publication10, p. 285–313.
    [Google Scholar]
  3. Gemmell, J. B.
    , 2004, Low- and intermediate-sulfidation epithermal deposits: ARC-AMIRAP, Australia, p. 57–63.
    [Google Scholar]
  4. Guoyi, Dong, Morrison, Gregg, dan SubhashJairet
    , 1995, Quartz Texture in Epithermal Veins, Queensland-Classification Origin and Implication; Economic Geology, vol.90, pp.1841–1856.
    [Google Scholar]
  5. Hedenquist, J. W., dan Arribas, A.
    , 2017, Epithermal ore deposits: first-order features relevant to exploration and assessment: Proceeding of 14th SGA Biennial Meeting 2017, vol.1, p.47–50.
    [Google Scholar]
  6. Marcoux, E., Milesi, J. P.
    , 1994, Epithermal gold deposits in west Java, Indonesi: ggeology, age and crustal source: Journal Geochemical Exploration v.50, p. 393–408.
    [Google Scholar]
  7. Pulungguno, A., Martodjojo, S.
    , 1994, Perubahan Tektonik Paleogen-Neogen Merupakan Peristiwa Tektonik Terpenting di Jawa. Prosiding Geologi dan Geodinamik Pulau Jawa Sejak Akhir Mesozoik hingga Kuarter, Jurusan Teknik Geologi FT-UGM, pp. 37–55.
    [Google Scholar]
  8. Rosana, M. F.
    , 2009, Karakteristik Mineralisasi Logam di Kawasan Jawa Bagian Barat, Seminar Bulanan Fakultas Teknik Geologi, Universitas Padjajaran, April 2009, 7p.
    [Google Scholar]
  9. Setidjaji, L. D., Kajino, S., Imai, A., Watanabe, K.
    ,2006, Cenozoic IslandArc Magmatism in Java Island (Sunda Arc, Indonesia): clues on relationship between geodynamics of volcanic center and ore mineralization: Resource Geology, v.56 No.3, p. 267–292.
    [Google Scholar]
  10. Simmons, S. F., White, N. C., John, D. A.
    , 2005, Geological Characteristics of Epithermal Precious and Base Metals Deposits: Economic Geology 100th Anniversary Volume, p. 485–522.
    [Google Scholar]
  11. Sujatmiko dan Santosa, S.
    , 1992, Peta Geologi Lembar Leuwidamar, Jawa: Pusat Penelitian dan Pengembangan Geologi, skala 1:100.000, 1 lembar.
    [Google Scholar]
  12. Van Bemmelen, R. W.
    , 1949, The Geology of Indonesia vol.1A: general geology of Indonesia and adjacent Archipelagoes: The Hague, Government Printing Office, 766p.
    [Google Scholar]
  13. White, N. C. dan Hedenquist, J. W.
    , 1995, Epithermal Gold deposits: styles, characteristics and exploration: SEG Newsletter no.23, p. 1,9–13.
    [Google Scholar]
  14. Whitford, D. J.
    , 1975, Geochemistry and Petrology of volcanic rocks from the Sunda Arc, Indonesia [unpublished Ph.D. thesis]: Australian National University, 449p.
    [Google Scholar]
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