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All Journal IJOG : Indonesian Journal on Geoscience MUSTEK ANIM HA Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Indonesian Journal on Geoscience Indonesian Journal on Geoscience Journal of Geology and Exploration
A. M. Imran
Department Of Geological Engineering Hasanuddin University Makasar
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Mechanical Engineering Public Health

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Thermal and Infrared Studies of Garnierite from the Soroako Nickeliferous Laterite Deposit, Sulawesi, Indonesia Sufriadin, Sufriadin; Idrus, Arifudin; Pramumijoyo, S.; Warmada, I. W.; Nur, I.; Imai, A.; Imran, A. M.; Kaharuddin, Kaharuddin
Indonesian Journal on Geoscience Vol 7, No 2 (2012)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3347.354 KB) | DOI: 10.17014/ijog.v7i2.137

Abstract

DOI: 10.17014/ijog.v7i2.137Mineralogical characterization of some garnierite samples from Soroako have been conducted using X-ray diffraction, thermal analysis, and infrared spectroscopy methods. XRD patterns reveal the samples mainly containing the mixture of kerolite (talc-like phase) and serpentine with minor smectite, sepiolite, and silica. Thermal analyses of garnierite samples indicated by DTA curves are in good agreement with patterns that have been reported in literature. Three endothermic peaks normally occur in the ranges between 58º C and <800º C illustrating three steps of weight losses: adsorbed, bound, and hydroxyl/crystal water. One additional weight loss in low temperature region of sepiolite is corresponding to the lost of zeolitic water. Infrared spectra appeared in 3800 - 3200 cm-1 region generally exhibit broad absorption bands, indicating low crystallinities of studied samples and can be assigned to the presence of hydroxyl group bonded to octahedral coordination mainly Mg atom. The bands observed at 1660 cm-1, 1639 cm-1, 1637 cm-1, and 1633 cm-1 in all samples indicate water molecules. FTIR spectra displaying the strong bands at 1045 cm-1, 1038 cm-1, and 1036 cm-1 could be related to the presence of Si-O-Si bonds linking to tetrahedral coordination. The strong absorption bands appeared at 511 cm-1, 505 cm-1, 499 cm-1, and 496 cm-1 in respective samples are attributed to divalent cation bonds (e.g. Mg, Ni-O). Both TG/DTA and FTIR seem to be the powerful tool in diagnosing the crystal chemistry of garnierite which is mainly composed of phyllosilicate minerals.
Thermal and Infrared Studies of Garnierite from the Soroako Nickeliferous Laterite Deposit, Sulawesi, Indonesia Sufriadin, Sufriadin; Idrus, Arifudin; Pramumijoyo, S.; Warmada, I. W.; Nur, I.; Imai, A.; Imran, A. M.; Kaharuddin, Kaharuddin
Indonesian Journal on Geoscience Vol 7, No 2 (2012)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3347.354 KB) | DOI: 10.17014/ijog.7.2.77-85

Abstract

DOI: 10.17014/ijog.v7i2.137Mineralogical characterization of some garnierite samples from Soroako have been conducted using X-ray diffraction, thermal analysis, and infrared spectroscopy methods. XRD patterns reveal the samples mainly containing the mixture of kerolite (talc-like phase) and serpentine with minor smectite, sepiolite, and silica. Thermal analyses of garnierite samples indicated by DTA curves are in good agreement with patterns that have been reported in literature. Three endothermic peaks normally occur in the ranges between 58º C and <800º C illustrating three steps of weight losses: adsorbed, bound, and hydroxyl/crystal water. One additional weight loss in low temperature region of sepiolite is corresponding to the lost of zeolitic water. Infrared spectra appeared in 3800 - 3200 cm-1 region generally exhibit broad absorption bands, indicating low crystallinities of studied samples and can be assigned to the presence of hydroxyl group bonded to octahedral coordination mainly Mg atom. The bands observed at 1660 cm-1, 1639 cm-1, 1637 cm-1, and 1633 cm-1 in all samples indicate water molecules. FTIR spectra displaying the strong bands at 1045 cm-1, 1038 cm-1, and 1036 cm-1 could be related to the presence of Si-O-Si bonds linking to tetrahedral coordination. The strong absorption bands appeared at 511 cm-1, 505 cm-1, 499 cm-1, and 496 cm-1 in respective samples are attributed to divalent cation bonds (e.g. Mg, Ni-O). Both TG/DTA and FTIR seem to be the powerful tool in diagnosing the crystal chemistry of garnierite which is mainly composed of phyllosilicate minerals.
Coral Reef Development as an Indicator of Seal Level Fluctuation: A Preliminary Study on Pleistocene Reef in Bulukumba, South Sulawesi Imran, A. M.; Farida, M.; Arifin, M. F.; Husain, R.; Hafidz, A.
Indonesian Journal on Geoscience Vol 3, No 1 (2016)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6254.964 KB) | DOI: 10.17014/ijog.3.1.53-66

Abstract

DOI:10.17014/ijog.3.1.53-66Pleistocene reefs in eastern part of Indonesia are abundantly found along the coast as raised reef. They express highly tectonized and/or uplifted area characterized by several terraces. Therefore the reef size is narrow. This research is located at Bira District of Bulukumba Regency or it lies at the southern tip of South Sulawesi Peninsula. The objective of this research is to define depositional environment based on coral development. Several methods were applied such as intersect lines which were perpendicular to the cliff, geochemical and petrographic analyses, as well as paleoenvironment interpretation. Three facies are described at the Pleistocene reef, namely 1) Reef Front Facies, 2) Reef Core Facies, 3) Back Reef Facies. Based on facies association and organism accumulation, the depositional environment of Pleistocene reef is interpreted to be developed in a small reef complex on an unstable basement. The reef has experienced at least 3 (three) times of sea level fluctuation.
Thermal and Infrared Studies of Garnierite from the Soroako Nickeliferous Laterite Deposit, Sulawesi, Indonesia Sufriadin, Sufriadin; Idrus, Arifudin; Pramumijoyo, S.; Warmada, I. W.; Nur, I.; Imai, A.; Imran, A. M.; Kaharuddin, Kaharuddin
Indonesian Journal on Geoscience Vol 7, No 2 (2012)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.7.2.77-85

Abstract

DOI: 10.17014/ijog.v7i2.137Mineralogical characterization of some garnierite samples from Soroako have been conducted using X-ray diffraction, thermal analysis, and infrared spectroscopy methods. XRD patterns reveal the samples mainly containing the mixture of kerolite (talc-like phase) and serpentine with minor smectite, sepiolite, and silica. Thermal analyses of garnierite samples indicated by DTA curves are in good agreement with patterns that have been reported in literature. Three endothermic peaks normally occur in the ranges between 58º C and &lt;800º C illustrating three steps of weight losses: adsorbed, bound, and hydroxyl/crystal water. One additional weight loss in low temperature region of sepiolite is corresponding to the lost of zeolitic water. Infrared spectra appeared in 3800 - 3200 cm-1 region generally exhibit broad absorption bands, indicating low crystallinities of studied samples and can be assigned to the presence of hydroxyl group bonded to octahedral coordination mainly Mg atom. The bands observed at 1660 cm-1, 1639 cm-1, 1637 cm-1, and 1633 cm-1 in all samples indicate water molecules. FTIR spectra displaying the strong bands at 1045 cm-1, 1038 cm-1, and 1036 cm-1 could be related to the presence of Si-O-Si bonds linking to tetrahedral coordination. The strong absorption bands appeared at 511 cm-1, 505 cm-1, 499 cm-1, and 496 cm-1 in respective samples are attributed to divalent cation bonds (e.g. Mg, Ni-O). Both TG/DTA and FTIR seem to be the powerful tool in diagnosing the crystal chemistry of garnierite which is mainly composed of phyllosilicate minerals.
Coral Reef Development as an Indicator of Seal Level Fluctuation: A Preliminary Study on Pleistocene Reef in Bulukumba, South Sulawesi Imran, A. M.; Farida, M.; Arifin, M. F.; Husain, R.; Hafidz, A.
Indonesian Journal on Geoscience Vol 3, No 1 (2016)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.3.1.53-66

Abstract

DOI:10.17014/ijog.3.1.53-66Pleistocene reefs in eastern part of Indonesia are abundantly found along the coast as raised reef. They express highly tectonized and/or uplifted area characterized by several terraces. Therefore the reef size is narrow. This research is located at Bira District of Bulukumba Regency or it lies at the southern tip of South Sulawesi Peninsula. The objective of this research is to define depositional environment based on coral development. Several methods were applied such as intersect lines which were perpendicular to the cliff, geochemical and petrographic analyses, as well as paleoenvironment interpretation. Three facies are described at the Pleistocene reef, namely 1) Reef Front Facies, 2) Reef Core Facies, 3) Back Reef Facies. Based on facies association and organism accumulation, the depositional environment of Pleistocene reef is interpreted to be developed in a small reef complex on an unstable basement. The reef has experienced at least 3 (three) times of sea level fluctuation.
Thermal and Infrared Studies of Garnierite from the Soroako Nickeliferous Laterite Deposit, Sulawesi, Indonesia Sufriadin Sufriadin; Arifudin Idrus; S. Pramumijoyo; I. W. Warmada; I. Nur; A. Imai; A. M. Imran; Kaharuddin Kaharuddin
Indonesian Journal on Geoscience Vol 7, No 2 (2012)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3347.354 KB) | DOI: 10.17014/ijog.7.2.77-85

Abstract

DOI: 10.17014/ijog.v7i2.137Mineralogical characterization of some garnierite samples from Soroako have been conducted using X-ray diffraction, thermal analysis, and infrared spectroscopy methods. XRD patterns reveal the samples mainly containing the mixture of kerolite (talc-like phase) and serpentine with minor smectite, sepiolite, and silica. Thermal analyses of garnierite samples indicated by DTA curves are in good agreement with patterns that have been reported in literature. Three endothermic peaks normally occur in the ranges between 58º C and <800º C illustrating three steps of weight losses: adsorbed, bound, and hydroxyl/crystal water. One additional weight loss in low temperature region of sepiolite is corresponding to the lost of zeolitic water. Infrared spectra appeared in 3800 - 3200 cm-1 region generally exhibit broad absorption bands, indicating low crystallinities of studied samples and can be assigned to the presence of hydroxyl group bonded to octahedral coordination mainly Mg atom. The bands observed at 1660 cm-1, 1639 cm-1, 1637 cm-1, and 1633 cm-1 in all samples indicate water molecules. FTIR spectra displaying the strong bands at 1045 cm-1, 1038 cm-1, and 1036 cm-1 could be related to the presence of Si-O-Si bonds linking to tetrahedral coordination. The strong absorption bands appeared at 511 cm-1, 505 cm-1, 499 cm-1, and 496 cm-1 in respective samples are attributed to divalent cation bonds (e.g. Mg, Ni-O). Both TG/DTA and FTIR seem to be the powerful tool in diagnosing the crystal chemistry of garnierite which is mainly composed of phyllosilicate minerals.
Coral Reef Development as an Indicator of Seal Level Fluctuation: A Preliminary Study on Pleistocene Reef in Bulukumba, South Sulawesi A. M. Imran; M. Farida; M. F. Arifin; R. Husain; A. Hafidz
Indonesian Journal on Geoscience Vol 3, No 1 (2016)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6254.964 KB) | DOI: 10.17014/ijog.3.1.53-66

Abstract

DOI:10.17014/ijog.3.1.53-66Pleistocene reefs in eastern part of Indonesia are abundantly found along the coast as raised reef. They express highly tectonized and/or uplifted area characterized by several terraces. Therefore the reef size is narrow. This research is located at Bira District of Bulukumba Regency or it lies at the southern tip of South Sulawesi Peninsula. The objective of this research is to define depositional environment based on coral development. Several methods were applied such as intersect lines which were perpendicular to the cliff, geochemical and petrographic analyses, as well as paleoenvironment interpretation. Three facies are described at the Pleistocene reef, namely 1) Reef Front Facies, 2) Reef Core Facies, 3) Back Reef Facies. Based on facies association and organism accumulation, the depositional environment of Pleistocene reef is interpreted to be developed in a small reef complex on an unstable basement. The reef has experienced at least 3 (three) times of sea level fluctuation.
EVALUASI PEMANFAATAN RUANG BERDASARKAN SEBARAN DAERAH RAWAN BENCANA GERAKAN TANAH DI KABUPATEN SINJAI Suleman, Irto; Imran, A. M.; Zubair, Hazairin
MUSTEK ANIM HA Vol 3 No 1 (2014): MUSTEK ANIM HA
Publisher : Faculty of Engineering, Musamus University, Merauke, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Gerakan tanah merupakan suatu peristiwa alam yang pada saat ini frekuensi kejadiannya semakin meningkat. Penelitian ini bertujuan untuk (1). Memetakan daerah rawan bencana gerakan tanah di Kabupaten Sinjai (2). Mengevaluasi arahan struktur dan pola ruang berdasarkan sebaran daerah rawan bencana gerakan tanah di Kabupaten Sinjai. Penelitian ini dilaksanakan di Kabupaten Sinjai Propinsi Sulawesi Selatan, periode bulan Agustus-September 2012. Penelitian ini merupakan penelitian deskriptif dengan melakukan analisis dokumen terhadap Rencana Tata Ruang Wilayah (RTRW), observasi dan wawancara. Analisis data menggunakan metode overlay (tumpang tindih) dengan Sistem Informasi Geografis (SIG) terhadap parameter kemiringan lereng, geologi, struktur geologi, curah hujan penggunaan lahan dan infrastruktur menghasilkan sebaran zonasi kerawanan gerakan tanah, serta overlay peta rawan bencana gerakan tanah  dengan peta rencana tata ruang wilayah untuk menghasilkan rekomendasi perencanaan pengembangan wilayah. Hasil penelitian menunjukkan bahwa daerah penelitian terbagi atas empat zona kerentanan gerakan tanah, yaitu (1) Zona kerentanan gerakan tanah tinggi, (2) Zona kerentanan gerakan tanah menengah, (3) zona kerentanan gerakan tanah rendah dan (4) Zona kerentanan gerakan tanah sangat rendah. Sedangkan evaluasi pemanfaatan ruang  terdiri atas daerah yang sudah sesuai dan daerah yang belum sesuai peruntukkannya berdasarkan sebaran daerah rawan gerakan tanah. Kesimpulannya adalah Pada wilayah Kabupaten Sinjai  terdapat empat zona kerentanan tanah yaitu zona kerentanan tinggi seluas 1352 Ha (1,6% dari luas wilayah kabupaten) lokasi dominan yaitu : Tompobullu, Bontokatute, Bijinangka, Gunung Perak, Pattongko, Kompang,  zona kerentanan menengah seluas  37403 Ha (45,7% dari luas wilayah kabupaten) lokasi dominan yaitu: Bullupoddo, Barambang, Barania, Bonto, Bontolempangang, Lamatti rilau, zona kerentanan rendah seluas 43055 Ha (52,5% dari luas wilayah kabupaten) lokasi dominan yaitu : Biringere, Kampala, dan zona kerentanan sangat rendah seluas 186 Ha (0,2% dari luas wilayah kabupaten) lokasi dominan yaitu: Bongki, Lappa.
Utilization of Geological Wealth of Celebes Canyon Tourism Area, Libureng Village, Tanete Riaja District, Barru Regency Sirajuddin, Haerany; Pachri, Hendra; Imran, A. M.; Langkoke, Rohaya; ., Kaharuddin; ., Sultan; Burhanuddin, Safri; ., Bahrul; Halide, Lidemar; A., Dwi Nuraeni; Jannah, A. Mifthahul
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 2 (2024): Kolaborasi yang Kuat untuk Kekuatan Kemasyarakatan
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i2.544

Abstract

The development of the tourist area in Celebes Canyon, Libureng Village, Tanete Riaja District, Barru Regency, has enormous potential in utilizing the geological wealth of the area, where the rocks resemble the Grand Canyon in America. Community service activities in Libureng Village aim to provide understanding and socialize the utilization of the geological wealth of Celebes Canyon to the community living around the tourist area, in this case as community service partners, as well as identifying the challenges and opportunities in developing this tourist destination. With an inclusive approach, it is hoped that Celebes Canyon will not only be a tourist attraction, but also provide economic and social benefits to the surrounding community. The method used in this LBE (Laboratory Based Education) community service activity is to conduct observations aimed at obtaining systematic data on the objects to be socialized and continued with socialization activities to the Libureng village community. Based on the results of the observation, it was found that the development of facilities and infrastructure around the tourist attraction needs to be carried out to maintain the geological potential and natural beauty and reduce environmental damage, besides that it is also necessary to always maintain cleanliness around the tourist area. During the socialization activity, a pre-test was conducted on 20 local residents regarding the potential and utilization of geological wealth, as well as the importance of maintaining the environment around the tourist area, the results showed that the level of understanding was in the range of 15% - 42%, but the post-test showed an increase in understanding of 22% - 67%. The importance of cooperation between various stakeholders to create a harmonious partnership in managing tourist attractions; as well as improving the quality of human resources from both managers and local communities is very much needed to support the development of sustainable tourist attractions.
Vulnerability of Mass Movement Zonation Using DEM in Upstream – Midstream Kelara Watershed, Jeneponto Regency, South Sulawesi Fathurrahman, Fathurrahman; Azikin, Busthan; Imran, A. M.
Journal of Geology and Exploration Vol. 3 No. 1 (2024): Journal of Geology and Exploration, June 2024
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v3i1.164

Abstract

Mass movement is one of the major natural disasters that claim many lives and property. The Kelara watershed, which is the research area, often encounters land movements that often cause casualties. The problem of mass movement often occurs in the upstream - midstream part of the Kelara watershed with mountainous to hilly morphology with moderately steep to steeply sloping relief. The parameters used in this analysis are lithology, distance from faults, distance from rivers, distance from streets, land use, rainfall, soil type, slope, profile curvature, and slope aspect. The analysis was conducted by giving weights based on the comparison of soil movement events to the class of each parameter using the Weight of Evidence method. Based on the Weight of Evidence method, the mass movement vulnerability zone is divided into five zones, very low vulnerability zone occupies 7.75%, low vulnerability zone occupies 27.11%, medium vulnerability zone occupies 31.76%, high vulnerability zone occupies 21.72%, and very high vulnerability zone occupies 11.66% of the total study area. Based on validation using the AUC value, the Weight of Evidence Method has a value of 0.771 (Fairly Good Model).
Co-Authors ., Bahrul ., Kaharuddin A. Hafidz A. Imai A. Imai A., Dwi Nuraeni Arifin, M. F. Arifudin Idrus Busthan Azikin Farida, M. Fathurrahman Fathurrahman Haerany Sirajuddin Hafidz, A. Halide, Lidemar Hazairin Zubair, Hazairin Husain, R. I Wayan Warmada I. Nur I. Nur Imai, A. Irto Suleman, Irto Jannah, A. Mifthahul Kaharuddin Kaharuddin Kaharuddin, Kaharuddin M. F. Arifin M. Farida Mudinillah, Adam Nur, I. Pachri, Hendra Pramumijoyo, S. R. Husain Rohaya Langkoke S. Pramumijoyo S. Pramumijoyo Safri Burhanuddin Sufriadin, Sufriadin Sultan .