NICKEL LATERITE POTENTIAL OF THE PUU NUNU PROSPECT, SOUTH KABAENA DISTRICT, BOMBANA REGENCY, SOUTHEAST SULAWESI PROVINC

Authors

  • Dava Saliham Qoyyibi ITNY
  • Oky Sugarbo Institut Teknologi Nasional Yogyakarta
  • Hill Gendoet Hartono Institut Teknologi Nasional Yogyakarta

DOI:

https://doi.org/10.33579/krvtk.v11i1.5807

Keywords:

nickel, geology, laterite, resource estimation

Abstract

Nickel occurrences in Indonesia are generally found as lateritic nickel deposits derived from the
residual weathering of bedrock from ophiolite or ultramafic complexes. Sulawesi Island and the surrounding
smaller islands possess significant nickel potential due to their complex geological setting. Therefore, a
geological study is necessary to assess this potential by conducting surface mapping. The study area is
located in Southeast Sulawesi and falls within the mining business license (IUP) area of PT. Tambang Bumi
Sulawesi. This research aims to carry out surface geological mapping, with the objective of identifying
geological conditions, including geomorphology, stratigraphy, geological structures, and resource estimation
in areas with lateritic nickel potential. The results of the study indicate that the geomorphological units
consist of strongly undulating-denudational hills and weakly to strongly undulating-denudational areas. The
stratigraphy of the study area, from oldest to youngest, comprises lherzolite and hornblende pyroxenite of the
Ultramafic Complex, which are unconformably overlain by mica schist and marble of the Pompangeo
Complex. The geological structure is characterized by a sinistral (left-lateral) left slip fault trending
northwest-southeast. Resource estimation using the ordinary kriging method yielded a total measured
resource volume of 518,855 m³, with an estimated tonnage of 778,283 tons in the lateritic potential area.

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References

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Published

2026-04-30

How to Cite

[1]
D. S. Qoyyibi, O. Sugarbo, and H. G. Hartono, “NICKEL LATERITE POTENTIAL OF THE PUU NUNU PROSPECT, SOUTH KABAENA DISTRICT, BOMBANA REGENCY, SOUTHEAST SULAWESI PROVINC”, Journal Technology of Civil, Electrical, Mechanical, Geology, Mining, and Urban Design, vol. 11, no. 1, pp. 1–8, Apr. 2026.

Issue

Vol. 11 No. 1 (2026): Energy Management and Sustainable Environment

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