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All Journal Journal of Geoscience, Engineering, Environment, and Technology Journal Publicuho Ophiolite : Jurnal Geologi Terapan Jurnal Rekayasa Geofisika Indonesia (JRGI)
La Ode Ngkoimani
Universitas Halu Oleo
Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science Mechanical Engineering Physics Social Sciences

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Limestone Facies And Diagenesis On Tondo Formation At Kaisabu Village Bau-Bau City Southeast Sulawesi Province Muhammad Chaerul; La Ode Ngkoimani; Sofyan Sadri
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 1 (2017): JGEET Vol 02 No 01 : March (2017)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.12 KB) | DOI: 10.24273/jgeet.2017.2.1.14

Abstract

This study aims to determine the limestone facies and diagenesis on Tondo Formation. The method used was petrographic method bypolarizing microscope. Based on the physical characteristics and biota contained, the carbonate rocks on tondo formation (Tmtl) can be grouped into two facies, namely: Wackestone and Packestone. The diagenesis process that occurred in Tondo Formation research area is microbial micritization, cementation and neomorphism which indicate that the Tondo Formation has existed on diagenetic environment of marine phreatic, meteoric phreatic and meteoric vadose.
IMPLEMENTASI PROGRAM PENGEMBANGAN DAN PEMBERDAYAAN MASYARAKAT USAHA PERTAMBANGAN EMAS PT. PANCA LOGAM MAKMUR DI KABUPATEN BOMBANA PROVINSI SULAWESI TENGGARA Ardi Ardi; Kamrullah M; Muh Rezeki A.; La Ode Ngkoimani; Irfan Ido; Muhamad Abas; Muhammad Zein Abdullah; La Ode Muhammad Elwan
Journal Publicuho Vol 3, No 3 (2020): August - October
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35817/jpu.v3i3.16494

Abstract

The purpose of this paper is to determine the Community Development and Empowerment Program of PT. Panca Logam Makmur, Bombana Regency with the aim of encouraging the economy, education, socio-culture, health, and the environment of the community around the mine, both individually and collectively. This study uses the Secondary Data Analysis (ASD) method using secondary data, in the form of research data and institutional administrative documentary data. The results of this study are: (1) The realization of the social responsibility of PT. Panca Logam Makmur in 2010-2015 consisted of three main programs, including: (a) community development programs; (b) infrastructure development program; and (c) social welfare action programs; (2) PT. PPM main program plan. Panca Logam Makmur has planned 7 programs or 87.5 percent of the 8 main compulsory PPM programs for metal mineral IUPs; and (3) The implementation of community development and empowerment has not yet compiled a PPM Master Plan which is guided by the PPM blue print for Southeast Sulawesi Province in accordance with Article 57 of the Minister of Energy and Mineral Resources No. 26 of 2018.
IDENTIFIKASI PERSEBARAN AIR LINDI MENGGUNAKAN METODE VERY LOW FREQUENCY ELECTROMACNETIC (VLF-EM) DI TPA PUUWATU, KOTA KENDARI David Satria; Erzam S. Hasan; Al Rubaiyn; La Ode Ngkoimani
Jurnal Rekayasa Geofisika Indonesia Vol 3, No 02 (2021): Edisi Agustus JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Jurnal Rekayasa Geofisika Indonesia

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Abstract

Leachate which is a liquid released from waste due to biological degradation processes. If the leachate flow is allowed to flow to the surface of the soil, it will have negative effects on the surrounding environment. One of the geophysical methods that can be used to detect leachate distribution patterns is the VLF-EM (Very Low Frequency-Electromagnetic) method. The VLF-EM (Very Low Frequency-Electromagnetic) method is a geophysical method that utilizes electromagnetic principles using a low frequency radio wave source of 10-30 kHz. The research location is in TPA Puawatu, Kendari City. The analysis was carried out by looking at the 2D cross section of the flow density gained from the data processing. Qualitative interpretation can be carried out by the method developed by Karous-Hjelt with the producing of a 2-dimensional cross section with current density parameters. The high current density value can be identified as the most conductive anomaly. The direction of leachate distribution in the Puuwatu TPA tends to flow from the north of the TPA to the south of the TPA, which indicates that many swamps in the South of the TPA have been contaminated with leachate.
Analisis pengaruh aktivitas pertambangan terhadap kualitas air tanah di Kabupaten Konawe Selatan Ali Okto; La Ode Ngkoimani; Suryawan Asfar; Jahiddin Jahiddin; Marwan Zam Mili
OPHIOLITE : Jurnal Geologi Terapan Vol 1, No 1 (2019): OPHIOLITE
Publisher : Program Studi Teknik Geologi Fakultas Ilmu dan Teknologi Kebumian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.605 KB) | DOI: 10.56099/ophiolite.v1i1.9321

Abstract

Aktivitas pertambangan dengan metode open pit mining dilakukan dengan cara pengupasan lahan, sehingga meninggalkan lahan tanpa tutupan vegetasi. Lahan tanpa tutupan vegetasi akan memperbesar laju aliran permukaan dan laju infiltrasi bawah permukaan. Metode yang digunakan untuk mengetahui tingkat pencemaran air menggunakan metode Indeks Pencemaran (IP). Hasil dari analisis terhadap sampel air yang berada di sekitar lokasi pertambangan di Kabupaten Konawe Selatan menunjukkan adanya unsur logam berbahaya seperti Arsen (As), Kromium VI (Cr+6), Kadmium (Cd), Tembaga (Cu), Seng (Zn) dan Timbal (Pb). Berdasarkan perhitungan dengan menggunakan Metode Indeks Pencemaran sampel air telah mengalami pencemaran ringan (untuk peruntukan Kelas I) dan masih memenuhi baku mutu air (untuk peruntukan Kelas III).
Co-Authors Al Rubaiyn Ali Okto Ardi Ardi David Satria Erzam S. Hasan Irfan Ido Jahiddin Jahiddin Kamrullah M La Ode Muhammad Elwan Marwan Zam Mili Muh Rezeki A. Muhamad Abas Muhammad Chaerul Muhammad Zein Abdullah Sofyan Sadri Suryawan Asfar