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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.
PKM Community Partnership Program: Strengthening the Capacity of the Salenrang Village Community, in Optimizing the Management of Geopark Area Geotheritage, Maros Regency South Sulawesi Province Sirajuddin, Haerany; Pachri, Hendra; Imran, A. M.; Husain, Jamal Rauf; Langkoke, Rohaya; Husain, Ratna; Farida, Meutia; Maulana, Adi; ., Sultan; ., Agustinus; Thamrin, Meinarni; ., Safruddim; Hidayah, Bahrul; Fajrin, Muh.; Azrul, Muh. Zulfahmi; Ikhsan, Nurul
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.372

Abstract

Indonesia is a country that has many islands and is rich in tourist destinations such as natural tourism, history, religion, culture, and so on. This attracts foreign tourists to visit or travel to Indonesia. One of the leading destinations in South Sulawesi which attracts foreign and domestic tourists is the Rammang-Rammang Karst in Maros which is known as the largest karst in Indonesia and is also a Global Karst Geopark Area approved by UNESCO. Rammang-Rammang Karst is an area that has a unique panorama, namely the type of karst, namely, tower karst with the natural landscape shape (geomorphology) of the Maros-Pangkep Karst area. Increasing the capacity of the Salenrang Village community is urgently needed so that the dissemination of geology-based information is more optimal. Therefore, the Department of Geological Engineering, Faculty of Engineering, Hasanuddin University, in collaboration with the Salenrang Village Government, organized a Laboratory Based Education (LBE) Service to increase the capacity of the people of Salenrang Village, Maros Regency. The methods used in this LBE event are observation, socialization and presenting information on tourist destinations through pamphlets and brochures. The observation method is carried out with the aim of systematically obtaining data on objects that will be socialized at the LBE service location in detail. Socialization was carried out to the Salenrang Village community about the tourism potential and geological conditions of the Rammang – Rammang Karst by distributing brochures and pamphlets to the Salenrang Village community in the LBE event area. Based on the results of the questionnaire, around 63% of visitors understand geological information in the tourist area, making it a challenge to disseminate better information. Through this LBE event, the people of Salenrang Village have proven that scientific information related to geological characteristics is very helpful in managing the geoheritage of the Rammang Rammang Area so that the increase in visitors will increase.
Sosialisasi Potensi Bahaya Geologi dan Mitigasinya di Kecamatan Herlang, Kabupaten Bulukumba, Provinsi Sulawesi Selatan Pachri, Hendra; Imran, A. M.; Azikin, Busthan; Jaya, Asri; Langkoke, Rohaya; Husain, Ratna; Arifin, Fauzi; Burhanuddin, Safri; ., Kaharuddin; Hidayah, Bahrul
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.437

Abstract

Bulukumba Regency experienced a geological disaster caused by land movement in the form of landslides and horizontal ground shifts on 24 May 2023. Damage to several government buildings and facilities occurred due to the geological disaster. The government of Bulukumba Regency is aware of the geological disaster that is signalled to continue. Therefore, the Labo-Based Education (LBE) service activity of the Faculty of Engineering was carried out in the Herlang sub-district, Bulukumba Regency. This LBE activity was carried out with the Department of Geological Engineering, Hasanuddin University, and the Government of Herlang District, Bulukumba Regency. This LBE service activity aims to increase the capacity of government and community to introduce geological natural disasters and mitigation efforts. The methods used are making socialisation documents and socialisation of geological disasters to the Herlang sub-district government. Assessment of programme achievement was conducted during the socialisation and by giving short questionnaires before and after the socialisation (post-test). Socialisation on geological hazard potential and mitigation was conducted with the sub-district government, community leaders, community organisations, and the general public, with 46 participants. Based on the questionnaire result, about 85% of the participants understood the geological information in the Herlang sub-district, Bulukumba Regency. The socialisation activity is expected to be sustainable in educating the community to achieve responsive and well-coordinated disaster mitigation.
Co-Authors ., Agustinus ., Bahrul ., Kaharuddin ., Safruddim A. Hafidz A. Imai A. Imai A., Dwi Nuraeni Adi Maulana, Adi Arifin, M. F. Arifudin Idrus Azrul, Muh. Zulfahmi Busthan Azikin Fajrin, Muh. Farida, M. Fathurrahman Fathurrahman Fauzi Arifin Haerany Sirajuddin Hafidz, A. Halide, Lidemar Hazairin Zubair, Hazairin Hidayah, Bahrul Husain, R. Husain, Ratna I Wayan Warmada I. Nur I. Nur Imai, A. Irto Suleman, Irto Jamal Rauf Husain Jannah, A. Mifthahul Kaharuddin Kaharuddin Kaharuddin, Kaharuddin M. F. Arifin M. Farida Meinarni Thamrin Meutia Farida Mudinillah, Adam Nur, I. Nurul Ikhsan Pachri, Hendra Pramumijoyo, S. R. Husain Rohaya Langkoke S. Pramumijoyo S. Pramumijoyo Safri Burhanuddin Siti Helmyati Sufriadin, Sufriadin Sultan .