# Hydrothermal alteration and timing of gold mineralisation in the Rumbia Complex, Southeast Arm of Sulawesi, Indonesia
> Mawaleda M.

URL kanonis: https://discover.unhas.ac.id/publications/hydrothermal-alteration-and-timing-of-gold-mineralisation-in-the-rumbia-complex
Jurnal / Konferensi: Iop Conference Series Earth and Environmental Science
Tahun terbit: 2017
DOI: https://doi.org/10.1088/1755-1315/71/1/012030
ISSN: 17551307
Citations: 1

## Authors
- Mawaleda M.

## Abstract
Abstract: The Rumbia Mountains, which in this study named Rumbia schist Complex is an east-west oriented, composed by a high-pressure/low-temperature, and a medium-pressure/low-temperature metamorphic rocks. Identified as mica schist, glaucophane schist, and green schist. Rumbia complex known as the location of gold deposits prospects discovered by local communities since 2007. The results of research showed that the metamorphic rocks are as hosts. There are two phase of gold mineralization that occurs in this area, namely: 1) Associated with tectonic deformation and metamorphic rocks exhumation, and 2) gold-related hydrothermal deposits. Radiometric age dating used 40Ar/39Ar geochronology, indicate that the first time of gold mineralisation in the Rumbia Complex occurred ???23 million years ago, and the second gold mineralisation were subsequently overprinting at 7 million years ago.
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\nKeywords: Hydrothermal, Gold, Deposits, 40Ar/39Ar, Timing, Rumbia, Complex, Southeast, Sulawesi

## Keywords
- Schist
- Metamorphic rock
- Overprinting
- Geology
- Geochemistry
- Geochronology
- Hydrothermal circulation
- Mineralization (soil science)
- Metamorphism
- Mineralogy
- Paleontology
- Soil water
- Soil science

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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