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All Journal Indonesian Journal of Geography Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience BULLETIN OF THE MARINE GEOLOGY Indonesian Journal on Geoscience Indonesian Journal on Geoscience Journal of Geosciences and Applied Geology
Edy Sunardi
Fakultas Teknik Geologi Universitas Padjadjaran
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science

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Journal : Indonesian Journal on Geoscience

 1 
The Lithofacies Association of Brown Shales In Kiliran Jao Subbasin, West Sumatra Indonesia Sunardi, Edy
Indonesian Journal on Geoscience Vol 2, No 2 (2015)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.2.2.77-90

Abstract

DOI:10.17014/ijog.2.2.77-90The lithofacies association, mainly lithology and depositional sequences of the Brown Shale Unit of Pematang Group was studied based on recent fieldwork at Karbindo Coal Mine, in Kiliran Jao Subbasin,West Sumatra, Indonesia. The lower part of the Brown Shale Unit consists of coal and limestone facies which were deposited in a marginal lacustrine area. The limestone was generated by evaporatic processes characterized by the presence of primary calcite crystals. The upper part of the unit, from bottom to top, is composed of six facies associations, among all: amalgamated massive thick bedded shales, interlaminated shales and siltstones, interbedded grey and red shales, fossiliferous shales, massive thick bedded shales, and interlaminated shale and sandstone facies. Those facies were deposited in a shallow to deep water lacustrine environment, characterized by their lithology compositions, sedimentary structures, and fossil contents. The unit has such as high content of reworked organic matters-bearing shales and mudstones. Turbiditic sedimentary structures, gastropods, and bivalves are common.
Co-Authors . Irawati Abdurrokhim ⠀ Abdurrokhim, . Adhiperdana, Billy G. Adhiperdhana, Billy Gumelar Adjat Sudradjat -, Adjat Sudradjat Adjat Sudrajat Adycipta Anis Prawoto, Adycipta Anis Agung Mulyo Ahmad Helman Hamdani, Ahmad Helman Alvionita, Azizah Tiara Ambari, Wardahrose Dhifa Andriana, Yoga Arifin, Alvin Adam Ayu, Shinta Billy G Adhiperdana Billy G. Adhiperdana Carrisa, Dea Darwansyah, Fiqry Djadjang Jedi Setiadi Dwandari Ralanarko Edison Gunawan Sirodj Emi Sukiyah Eric Wijaya Faisal Helmi Faisal Helmi -, Faisal Helmi Faizal Muhamadsyah -, Faizal Muhamadsyah Fauziely, Lili Ginting, Agus Santa Haqiqie, Fauzan Aditya Hendarmawan, . Heni Pujiastuti Herida, Shaskia Ildrem Syafri Ismawan - Iyan Haryanto Iyan Haryanto -, Iyan Haryanto Iyan Haryanto, Iyan Johanes Hutabarat KAMILA, PUTRI Lamba, Lisa Muhammad Irwansyah, Muhammad Muhammad Kurniawan Alfadli Nanda Natasia Nisa Nurul Ilmi Nurdrajat Nurdrajat Oeke Sobarin -, Oeke Sobarin Pranopto, Andri Pranowo Nugroho Pusparini, Widyatri Saputro, Anisa Ayu Saragih, Rahmat Yantono Sendjadja, Yoga Andriana Sentani, Eddy Arus Suparka -, Suparka Suryanegara, Yoga SYABAN, FARHAN TAUFIK Syaiful Alam Vijaya Isnaniawardhani Wardhani, Vijaya Isnania Yarra Sutadiwiria Yeftamikha, . Yoga Andriana Sendjaja, Yoga Andriana Yunita Rossa Indah Putri, Yunita Rossa Yusi Firmansyah, Yusi