Provenance and Paleoclimate Analysis of Sandstone from Meluhu Formation in Kendari, Southeast Sulawesi.

Authors

  • Muhammad Firdaus Research Centre of Geological Resources, National Research and Innovation Agency of Indonesia http://orcid.org/0000-0002-8933-3770
  • Dwi Novitasari Geology Engineering, Institut Teknologi Sumatera, Jalan Terusan Ryacudu, Way Huwi, Jati Agung
  • Angga Jati Widiatama Research Centre of Geological Resources, National Research and Innovation Agency of Indonesia
  • Achmad Fachruddin Centre for Geological Survey, Geological Agency, Ministry of Energy and Mineral Resources of Indonesia,
  • Lauti Dwita Santy Centre for Geological Survey, Geological Agency, Ministry of Energy and Mineral Resources of Indonesia

DOI:

https://doi.org/10.33332/jgsm.geologi.v24i2.776

Abstract

The Meluhu Formation consists of quartz sandstone, red shale, siltstone, and mudstone at the bottom part, and alternating black shale, sandstone, and thin limestone in the upper part. Petrographic components composition can reveal the litho-tectonic setting of a region. The composition of sandstone can be done by determining and counting the proportion of a quartz minerals, feldspar, and rock fragment from thin sections using petrographic analysis. This result can guide to depositional setting and paleoclimates of a region. The Provenance and paleoclimates studies of Meluhu Sandstone are still relatively new. The purpose of this study was to find out the provenance and paleoclimate of sandstone of Meluhu Formation which is exposed in 14 sites along Kendari and adjacent area. The method used to make petrographic observations followed by data processing using the point counting method. The sandstone in this study area was classified into sublitharenite, lithic arenite, arkose, subarkose, and greywacke. The origin of rock was interpreted as located in the recycled orogenic province, interior craton, and undissected arc. The paleoclimate that occurred in the formation of these siliciclastic rocks was arid to humid.

Keywords: Meluhu Formation, provenance, paleoclimate, sandstone.

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Published

2023-05-22

Issue

Vol. 24 No. 2 (2023): JURNAL GEOLOGI DAN SUMBERDAYA MINERAL

Section

Article

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Copyright (c) 2023 Muhammad Firdaus

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