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La Ode Andimbara
Jurusan Teknik Geofisika FITK, Universitas Halu Oleo
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ANALISIS SUSEPTIBILITAS MAGNETIK PASIR DI AREA PESISIR BATU GONG KECAMATAN LALONGGASUMEETO KABUPATEN KONAWE Ysrawati Ysrawati; Jahidin Jahidin; Syamsul Razak Haraty; Pou Anda; Erzam Sahaluddin Hasan; La Ode Andimbara
Jurnal Rekayasa Geofisika Indonesia Vol 4, No 02 (2022): Edisi Agustus JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Jurusan Teknik Geofisika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v4i02.25600

Abstract

Telah dilakukan penelitian dengan tujuan untuk menentukan nilai suseptibilitas magnetik pasir dan jenis mineral magnetik yang terkandung pada pasir di area pesisir Batu Gong. Pengambilan sampel dilakukan secara grid dengan jumlah 63 titik di area pesisir Batu Gong. Panjang keseluruhan lokasi penelitian 2 km, untuk jarak antar titik pengambilan sampel 30 m pada setiap titik dengan kedalaman 30 cm. Pengukuran nilai suseptibilitas magnetik pasir dilakukan dengan menggunakan alat Bartington MS2B. Berdasarkan hasil pengukuran diperoleh nilai suseptibilitas magnetik sampel pasir berada pada rentang nilai 2,7 x 10-8m3/kg – 8 x 10-8m3/kg, dengan kandungan mineral magnetik berupa  pyrite (FeS2) dan biotite (Mg, Fe, AL Silikat), sedangkan hasil pengukuran analisis geokimia X- Ray Diffraction (XRD) diperoleh persentase senyawa quartz berkisar antara 79,48% - 85,60%  dan persentase senyawa mica berkisar antara 14,39% - 19,51%.
Penyuluhan Pemanfaatan Air Bersih dan Sosialisasi Bimbingan Teknis Pengolahan Air Bersih dengan Metode Aerasi-Filtrasi untuk Meningkatkan Derajat Kesehatan Masyarakat La Aba; Mulidin Mulidin; La Ode Muhammad Sety; Nani Yuniar; La Ode Sahidin; La Ode Andimbara; Irfan Irfan
Indonesia Berdaya Vol 5, No 1 (2024)
Publisher : UKInstitute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47679/ib.2024661

Abstract

Air bersih merupakan sumber utama dalam kehidupan makhluk hidup terutama manusia. Air bersih adalah air yang digunakan untuk keperluan sehari-hari yang kualitasnya memenuhi syarat Kesehatan dan dapat diminum apabila telah diolah seperti di masak. Kelurahan Nambo yang terletak diwilayah pesisir memiliki kadar besi (Fe) yang tinggi dalam sumber air yang dikonsumsi masyarakat serta rendahnya pengetahuan masyarakat yang masih kurang tentang pentingnya memanfaatkan air bersih. Kegiatan penyuluhan dan sosialisasi dengan bimbingan teknis bertujuan untuk meningkatkan pengetahuan dan keterampilan masyarakat dalam merancang dan memanfaatkan peralatan tegnologi pengolahan air bersih menggunakan metode aerasi filtrasi. Hasil kegiatan menunjukkan hasil yang sangat signifikan dengan peningkatan pengetahuan masyarakat dan keinginan yang sangat besar untuk mengubah perilaku hidup yang bersih dan sehat.
Analisis Kualitas Air Tanah pada Daerah Sekitar Lokasi Pertambangan di Kabupaten Kolaka Ali Okto; Al Rubaiyn; Jahidin; La Ode Sahiddin; La ode Andimbara; Suryawan Asfar
Jurnal Rekayasa Geofisika Indonesia Vol. 5 No. 01 (2023): Edisi April Jurnal Rekayasa Geofisika Indonesia (JRGI)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v5i01.1

Abstract

This research was conducted around mining sites is Pomalaa district, Kolaka. Nickel mining activities have an impact on water pollution which can reduce water quality in both rivers and groundwater. The decrease in water quality around the mining area can be caused by the flow of runoff from rainwater which carries soil particles to water bodies which makes the water cloudy and may contain heavy metals. This study aims to determine the quality of the soil around the mining area of ​​Pomalaa District. Sampling of surface water and subsurface water was carried out using the purposive sampling method. The Pollution Index method is used to analyze the level of water pollution. The results of the analysis show that mining activities in the study area do not have a significant impact on decreasing air quality even though some hazardous metal elements are found such as Arsenic (Ar), Khomium VI (Cr+6), Iron , Cadmium, Copper (Cu) and Lead (Pb). The dominant influence is the high content of BOD and DO in the waters which makes several locations of minor occurrences according to the calculation of indexing calculations. Geological factors that play a role in decreasing air quality are morphological, lithological and structura
Analisis Kandungan Kapur (CaCO3) Pada Sumber Air Bersih Di Kelurahan Tampo Kecamatan Napabalano, Kabupaten Muna Sahidin Sahidin; La Aba Aba; Rosliana Eso; Ali Okto; Alfirrman Alfirman; La Ode Andimbara
Jurnal Rekayasa Geofisika Indonesia Vol. 6 No. 01 (2024): Edisi Arpil JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v6i01.69

Abstract

Salah satu indikator penting untuk penilaian air layak konsumsi bagi masyarakat adalah kandungan kapur atau biasa disebut sebagai kesadahan air. Menurut World Healt Organization (WHO), bahwa air yang mengandung zat kapur tinggi dapat menimbulkan dampak terhadap kesehatan seperti penyumbatan pembuluh darah jantung (cardiovascular desease), batu ginjal (urolithiasi) yang dapat menyebabkan kencing batu serta masalah kesehatan lainnya, masalah ekonomi seperti penggunaan detergen serta dalam bidang industri seperti adanya kerak pada mesin. Kandungan mineral yang terkandung dalam air sangat dipengaruhi oleh lingkungan sekitarnya. Kelurahan Tampo, Kecamatan Napabalano secara geologis tersusun oleh batugamping dan merupakan daerah karst yang berkembang dengan baik. Keberadaan daerah karst dan kondisi tipologi batuan, menjadikan wilayah Kelurahan Tampo sebagai daerah berkapur dan ancaman sumber air tanah memiliki kadar kapur yang cukup tinggi. Oleh Karena itu, perlu Identifikasi dan Pengukuran Kandungan Kapur (CaCO3) Sumber Air Bersih di Kelurahan Tampo, Kecamatan Napabalano, Kabupaten Muna. Penelitian ini dilaksanakan dengan Pengambilan sampel secara acak pada beberapa sumur gali masyarakat yang digunakan sebagai air bersih. Analisis sampel air yakni kadar kapur atau tingkatan kesadahan air dilakukan seacara kualitatif dan kuantitatif. Secara kulitatif menggunakan metode elektrokoagulasi sedangkan secara kualitatif menggunakan metode Atomic Absorption Spectrophotometry (AAS) dan Titrasi EDTA di Laboratorium Forensik FMIPA UHO. Berdasarkan hasil analisis laboratorim pada 12 sampel air, terdapat 11 sampel memiliki tingkat kesadahan tinggi dan 1 sampel memiliki tingkat kesadahan rendah. Jadi, secara keseleuruhan sampel air yang ada di Kelurahan Tampo memiliki tingkat kesadahan yang cukup tinggi
Identifikasi Potensi Air Tanah di Pulau Katela Kabupaten Muna Barat Menggunakan Metode Geolistrik Resistivitas La Ode Andimbara; Sawaludin Sawaludin
Jurnal Rekayasa Geofisika Indonesia Vol. 6 No. 01 (2024): Edisi Arpil JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v6i01.74

Abstract

Island Katela has a population of 957 people. Currently, the community has difficulty getting clean water. Activities to identify potential groundwater resources on Katela Island need to be carried out to solve this problem. The purpose of this research activity is to identify the subsurface of the land on Katela Island, West Muna Regency using the geoelectric resistivity method to obtain information on the potential of the groundwater layer. The main objective is to determine the existence of groundwater resources on Katela Island where the presence of groundwater is depicted in 2-dimensional (2D) and 1-dimensional (1D) subsurface resistivity cross-sectional models. The results obtained show that the structure of the subsurface layers in the survey area consists of layers of clay, sand, sandstone, limestone, salt water layers and groundwater (fresh) layers. The potential existence of a groundwater layer (fresh) is at a depth of 31.25 m at Site 1, with a resistivity value above 0.2 Ωm to 1 Ωm. This layer is thought to be a fresh water layer because above it there is a layer of clay which is impermeable so it is difficult for sea water to intrude. Based on resistivity data, at shallow depths (at the surface to a depth of 25 m) in the survey area sea water has been intruded.
Ni-Fe LATERIZATION TREND AND NICKEL Laterite prospect area determination ON LATERITE DEPOSITS IN LASOLO KEPULAUAN DISTRICT, NORTH KONAWE REGENCY, SOUTHEAST SULAWESI: POLA LATERISASI Ni-Fe DAN PENENTUAN AREA PROSPEK NIKEL LATERIT PADA ENDAPAN LATERIT DI KECAMATAN LASOLO KEPULAUAN, KABUPATEN KONAWE UTARA, SULAWESI TENGGARA Rio Irhan Mais Cendra Jaya; Hasria; Haslan; Deniyatno; La Ode Asrafil; Laode Ihksan Juarsan; Al Firman; Indrawati; La Ode Sahidin; La Ode Andimbara; Alfirman
Buletin Sumber Daya Geologi Vol 21 No 1 (2026): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v21i1.521

Abstract

This research was conducted in Lasolo Islands District, North Konawe Regency. This study aims to investigate the pattern of Ni Fe laterization and determine the prospect area of nickel laterite deposits. The method used is the analysis and interpolation of drilling data to determine Ni distribution, ore thickness, stripping ratio, and deposit prospect area. Drilling data are chemical data of several major elements and oxides obtained from XRF analysis, such as Ni, Fe, SiO2, MgO, and Al2O3, and ore thickness data. The laterization pattern show that the laterite nickel deposits at the research site belong to the saprolitic ore type where Ni tends to accumulate in the Saprolite Zone with Ni content higher than the Cut of Grade (COG) value. The results of interpolation and mapping obtained prospect areas are divided into three namely non-prospect areas (Ni <1.5%), areas with moderate enrichment prospects (Ni 1.5 - 1.8%), and areas with high enrichment prospects (Ni > 1.8%).
Analisis Geoteknik untuk Mengurangi Potensi Bencana Longsor di Area Tambang Nikel, Kecamatan Langgikima Muhammad Ilham Kadar Ilham; La Ode Andimbara; Al Rubaiyn; La Ode Dzakir; Muh Karnoha Amir
Jurnal Rekayasa Geofisika Indonesia Vol. 7 No. 02 (2025): Edisi Agustus JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v7i02.163

Abstract

Landslides that commonly occur in nickel mining are caused by the absence of geotechnical studies conducted by the company. Based on the importance of this issue, this study was carried out to mitigate potential landslides in the mining slope area. The objective of this research is to determine the physical and mechanical characteristics of laterite soil, recommend a stable slope design, and establish an optimal factor of safety for practical implementation. The results of this study indicate that the soil material in the limonite zone has a density of 12.65 kN/m³, cohesion of 22.55 kN/m², and an internal shear angle of 30.58˚, while the soil material in the saprolite zone has a density of 12.55 kN/m³, cohesion of 12.75 kN/m², and an internal shear angle of 28.34 ˚. The recommended overall slope design to ensure slope stability and prevent landslides includes a slope height of ≤ 45 m, a bench width of ≥ 60 m, and an overall slope angle of ≤ 37º. Additionally, the recommended factor of safety for overall slope stability is ≥ 1.1, with a landslide probability of 7.80%
Survei Geohidrologi Menggunakan Metode Geolistrik Resistivitas di Wilayah Desa Mantobua Kecamatan Loghia Kabupaten Muna Al Firman; Jahidin; Usmardin; La Ode Andimbara; La Ode Sahiddin; Indrawati; Al Harun Taate
Jurnal Rekayasa Geofisika Indonesia Vol. 8 No. 01 (2026): Edisi April JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v8i01.193

Abstract

A geohydrological survey using the resistivity geoelectric method has been conducted in the Mantobua Village area, Loghia District, Muna Regency. This research aims to: (1) Determine the resistivity value of the subsurface layers, and (2) Determine the potential presence of groundwater based on the resistivity value of the subsurface layers. Data collection was carried out using 6 measurement lines with the Wenner-Schlumberger electrode configuration. The resistivity values of the subsurface layers in the research area range from 6.31 to 1757 Ωm. The potential presence of groundwater based on the resistivity values of the subsurface layers is as follows: Line 1 is below the surface at a depth of 9.26 m to 52.4 m with a resistivity range of 23.9 Ωm; Line 2 is at a depth of 6.59 m to 59.9 m with a resistivity of 13.2 – 26.5 Ωm; Line 4 is at a depth of 1.25 m to 59.9 m with a resistivity of 26.6 Ωm; Line 5 is at a depth of 1.25 m to 59.9 m with a resistivity of 16.3 – 32.6 Ωm; and Line 6 is at a depth of 9.26 m to 19.8 m with a resistivity of 60.4 Ωm.
Studi Geofisika Terhadap Bidang Gelincir pada Daerah Rawan Longsor Menggunakan Metode Geolistrik Konfigurasi Wenner – Schlumberger di Desa Lamboo Kecamatan Moramo Kabupaten Konawe Selatan Syamsul Razak Haraty; Sadirga Karim; La Ode Andimbara
Jurnal Rekayasa Geofisika Indonesia Vol. 8 No. 01 (2026): Edisi April JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v8i01.195

Abstract

This study aims to identify the presence and depth of slip planes in landslide-prone areas in Lamboo Village, Moramo Subdistrict, South Konawe using the Wenner-Schlumberger configuration of the electrical resistivity method. The method involes injecting electric current into the ground and measuring the potential diffrerence to determine subsurface resistivity variations. Measurements were conducted along five survey lines to reveal subsurfaces  geological  structures  potentially  acting  as  landslide zones. The inversion results showed low resistivity zones interpreted as water-satured clay layers, which serve as slip planes. These slip zones vary in depth acroos the survey lines. The findings are crucial for landslide risk mitigation and can inform safer land-use planning for local communities
Peningkatan Kualitas Air Bersih melalui Penerapan Metode Aerasi-Filtrasi pada Sumber Air Masyarakat Kelurahan Wundumbatu Kota Kendari La Aba; Muliddin Muliddin; Nani Yuniar; La Ode Sahiddin; La Ode Andimbara; Irfan Irfan
Jurnal Abdi Masyarakat Indonesia Vol 6 No 1 (2026): JAMSI - Januari 2026
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.2473

Abstract

Kegiatan pengabdian ini dilaksanakan untuk menjawab permasalahan kualitas air bersih di Kelurahan Wundumbatu, Kecamatan Poasia, Kota Kendari, di mana sebagian besar sumber air masyarakat seperti sumur gali, sumur bor, dan air PAM masih mengandung besi (Fe) dan kapur yang melebihi ambang batas aman kesehatan. Kondisi ini berpotensi menimbulkan gangguan kesehatan serta menurunkan kualitas hidup masyarakat. Untuk mengatasi masalah tersebut, dilakukan program pembuatan dan pemasangan sistem aerasi–filtrasi air yang bertujuan meningkatkan kualitas air agar aman digunakan untuk kebutuhan rumah tangga. Metode pelaksanaan meliputi tahap persiapan, survei lapangan, pemeriksaan kualitas air, penyuluhan kesehatan, bimbingan teknis, pembuatan alat, pemasangan, dan evaluasi kinerja alat. Hasil kegiatan menunjukkan meningkatnya pengetahuan masyarakat tentang pentingnya air bersih, yang ditunjukkan oleh tingginya tingkat pemahaman peserta penyuluhan. Implementasi alat aerasi–filtrasi menghasilkan perubahan nyata pada kualitas air, di mana air yang sebelumnya keruh dan berwarna kekuningan menjadi lebih jernih, tidak berbau, dan lebih layak digunakan. Berdasarkan evaluasi visual dan pengujian sederhana, kejernihan air meningkat hingga 90% setelah proses filtrasi. Masyarakat juga mampu merawat dan mengoperasikan alat secara mandiri setelah mengikuti bimbingan teknis. Temuan ini menunjukkan bahwa teknologi aerasi–filtrasi merupakan solusi efektif, murah, dan mudah diterapkan di lingkungan masyarakat. Secara keseluruhan, kegiatan pengabdian ini berhasil meningkatkan kualitas air bersih dan kesadaran masyarakat tentang sanitasi, sehingga berkontribusi pada kesehatan lingkungan dan keberlanjutan pengelolaan air di Kelurahan Wundumbatu.
Co-Authors Al Firman Al Firman Al Harun Taate Al Rubaiyn Al Rubaiyn Alfirman Alfirrman Alfirman Ali Okto Deniyatno, Deniyatno Erzam Sahaluddin Hasan Haslan Hasria Ido, Irfan Indrawati Indrawati Jahidin Jahidin Jahidin Jaya, Rio Irhan Mais Cendra La Aba La Ode Asrafil La Ode Dzakir La Ode Muhammad Sety La Ode Sahiddin La Ode Sahiddin La Ode Sahidin La Ode Sahidin Laode Ihksan Juarsan Muh Karnoha Amir Muhammad Ilham Kadar Muliddin Muliddin Mulidin Mulidin Nani Yuniar Nani Yuniar Pou Anda Rosliana Eso Sadirga Karim Sahidin Sahidin Sawaludin Sawaludin Suryawan Asfar Syamsul Razak Haraty Usmardin Usmardin Ysrawati Ysrawati