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Muh. Altin Massinai
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Departemen Geofisika, Fakultas Matematika dan Ilmu Pengetahuan Alam - Universitas Hasanuddin, Gedung MIPA, Kampus Unhas Tamalanrea - Jalan Perintis Kemerdekaan, Makassar - Sulawesi Selatan 90245
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Jurnal Geocelebes
Published by Universitas Hasanuddin
ISSN : 25795821     EISSN : 25795546     DOI : https://doi.org/10.20956/geocelebes.vxix.xxxxx
Core Subject : Science,
Earth & Planetary Sciences
Jurnal Geocelebes adalah jurnal peer-review yang dipublikasikan oleh Departemen Geofisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Hasanuddin. Jurnal ini terbit dua kali dalam setahun pada bulan April dan Oktober. Jurnal ini diperuntukkan sebagai sarana publikasi ilmiah di bidang geofisika baik teoritik maupun terapan. Artikel yang dimuat merupakan hasil penelitian yang orisinal, tinjauan (review) tentang kemajuan terkini dari suatu topik tertentu, studi kasus aplikasi geofisika atau pun resensi tentang perangkat lunak yang berkaitan dengan geofisika. Fokus dan cakupan topik yang dimuat dalam Jurnal Geocelebes: Geofisika eksplorasi Seismologi Vulkanologi Geofisika lingkungan Hidrometeorologi Oseanografi Dinamika pantai dan lautan Geoinformatika Mitigasi bencana geologi
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geofisika
Articles 137 Documents
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The Effect of the Rock Slope Material on the Compressive Strength Value in Malino, South Sulawesi Province: Pengaruh Material Penyusun Lereng Batuan terhadap Nilai Kuat Tekan di Daerah Malino Provinsi Sulawesi Selatan Dian Dwi Apriliyani Arsdin; Purwanto Purwanto; Muhammad Ramli
JURNAL GEOCELEBES Vol. 6 No. 1: April 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i1.19309

Abstract

The research location is on the upstream slope of the Jeneberang River in Malino, Gowa Regency, South Sulawesi. This study aims to determine the types of rocks the slopes and to study the relationship between mineralogy characteristics and rock mechanical properties. Mineralogical characteristics analysis used petrographic analysis, XRD and XRF, while for the analysis of rock mechanical properties using uniaxial compressive strength analysis in this study used three types of samples taken on the same slope with the top, middle and bottom sampling points. The results of this study indicate that the rock types found on the slopes are andesite igneous rock types with the same main mineral types, the mineral is albit, analcime, quartz and leucite, while the secondary minerals found in each sample are different, on the slopes of sample A the secondary mineral is spodumene, sample B secondary mineral is garnet and sample C is palygorskite. The value of the results of testing the mechanical properties of each sample is also different, the correlation of the three uniaxial compressive strength test values to the mineral composition of rock samples shows that the correlation of quartz minerals to the compressive strength value and young's modulus has a fairly high correlation value of 0,934 and 0,9798, the mineral correlation value to the poisson ratio indicates that the mineral leucite has high correlation value compared to other minerals.
Geothermal Fluid Characterisics based on Geochemical Analysis of Hot Water in The Wawolesea Area, North Konawe Regency Southeast Sulawesi Province: Karakteristik Fluida Panas Bumi Berdasarkan Analisis Geokimia Air Panas Daerah Wawolesea Kabupaten Konawe Utara Sulawesi Tenggara Rizky Nurul Aulia; Irzal Nur; Asran Ilyas
JURNAL GEOCELEBES Vol. 6 No. 1: April 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i1.19672

Abstract

North Konawe Regency is an area with interesting geothermal potential to be studied. The observed geothermal potential manifestation is located in the Wawolesea area through the collection and analysis of three hot spring samples. This study aims to determine the characteristics of geothermal fluids, namely the type and origin of the fluid by conducting geochemical analysis on samples of hot springs in the study area which further shows the content of elements and chemical compounds and their respective concentrations. The analysis in this research is Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) to obtain B and Li concentrations, conductivity meter to obtain Cl concentration, visible spectroscopy method for SO4 concentration and HCO3 concentration measured by acid-base titration. The results showed that the type of hot springs in the study area was included in the Chloride type with a percentage of 81.8156%-83.3976% with a pH value of 6.7-7.4 and a hot spring temperature of 50-54°C then plotted into trilinear diagram. The Cl-Li-B Ternanry diagram shows that the source of the fluid is in a reservoir that has the same rock structure and comes from the old hydrothermal system. Based on the results of the analysis of fluid characteristics obtained from the research, it can be concluded that the hot springs of the Wawolesea Region are an indicator of the presence of geothermal sources and further research is needed on the magnitude of the geothermal potential.
Biostratigraphy of Limestone based on Large Foraminifera in the Donggala Region, Central Sulawesi: Biostratigrafi Batugamping Berdasarkan Kandungan Foraminifera Besar di Daerah Donggala, Sulawesi Tengah Nurhikmah Supardi; Savira Aulia Rahmawati
JURNAL GEOCELEBES Vol. 6 No. 1: April 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i1.19949

Abstract

The Sulawesi Molasa Formation is mostly composed of clastic and carbonate sediments which are widely distributed on the island of Sulawesi. Research on the Sulawesi Molasa Formation has been carried out by several researchers. However, there has been no detailed research on limestone biostratigraphy in the Donggala area, so it is very important to do it. This study aims to analyze the age and depositional environment of the Sulawesi Molasa Formation limestone based on the content of large foraminifera. The method used in data collection is measuring section. Field data collection was carried out by stratigraphic measurements including lithology identification, thickness and rock sampling. Laboratory observations were carried out using a polarizing microscope to observe a thin section of rock to determine the species of large foraminifera, their mineral and organic compositions. From the results of field observations found four types of lithology, namely wackestone, packstone, grainstone and floatstone. Based on the observation of large foraminifera fossils in a thin section of limestone in the study area, there are 24 species of large foraminifera identified. Among them, there are four index fossils, namely Miogypsinoides dehaarti (van der Vlerk), Paleomiogypsina bononensis (Matsumaru), Miogypsina sp, (Vaughan), Paleomiogypsina sp, and Miogypsinella sp, (Aquitanian). Based on age withdrawal and description of large foraminifera fossils, it is known that the limestones of the study area are Early Miocene-Middle Miocene age with the depositional environment in the lagoon zone to the forereef shelf
Characteristics of Ultramafik Rock and Nickel Laterite Distribution in Siuna Area, Pagimana, Banggai, Central Sulawesi: Karakteristik Batuan Ultramafik dan Penyebaran Nikel Laterit pada Daerah Siuna Kecamatan Pagimana Kabupaten Banggai, Sulawesi Tengah Riska Puspita; Ninasafitri Ninasafitri; Moh. Rizal Ente
JURNAL GEOCELEBES Vol. 6 No. 1: April 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i1.18523

Abstract

The geology of Sulawesi Island, especially the eastern arm, is known to be composed of extensive ultramafic rocks with mineral deposit potential, including nickel laterite. The research area is located at PT. X Siuna, Pagimana District, Banggai Regency, Central Sulawesi Province. This study purpose to determine the characteristics of ultramafic rocks in the study area and to determine the distribution of laterite nickel and the relationship between ultramafik rock characteristics in the study area. The research methods used are field research methods and laboratory analysis (Petrography and XRF Analysis). Field research was conducted to collect field data in the form of rock samples and soil samples where there were 9 stations for rock samples and 4 stations for soil samples. Furthermore, laboratory analysis in the form of petrographic analysis will be carried out to determine the mineral composition of the rock, then XRF (X-Ray Flourescence) analysis is carried out to determine laterite nickel content which is then processed using ArcGIS 10.5 software, then interpolated using the Inverse Distance Weight (IDW) method. Based on the results of field and laboratory analysis, the rock characteristics in the study area have 3 rock types, namely serpentinized peridotite units, serpentinized dunite units and serpentinite units. The three rocks have been serpentinized with intermediate to strong  intensity, the constituent minerals have been dominated by serpentine, opaque mineral, pyroxine, and olivine. Based on IDW interpolation results, the distribution of nickel laterite in the western part of the study area has nickel (Ni) content of 0.50 – 1.2%, while in the southern – eastern part of the research area it has nickel (Ni) content of 0.20 – 0.5%
Classification of Majene Regency Landslide Prone Areas Using Geographic Information System and Storie Index: Klasifikasi Daerah Rawan Tanah Longsor Kabupaten Majene Menggunakan Sistem Informasi Geografis dan Metode Indeks Storie Indadzil A. P. Santoso; Aulia L. P. Wibowo; Cut L. Zulfa; Naufal N. Siregar; Rangga Adiprima Sudisman
JURNAL GEOCELEBES Vol. 6 No. 1: April 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i1.19040

Abstract

On January 14, 2021, several villages in Majene Regency suffered landslides triggered by a M6.2 earthquake. The study’s aim is to use the Index Storie model approach, remote sensing data, and Geographic Information Systems (GIS) to map the distribution of landslide-prone areas as a mitigation basis in Majene Regency to reduce the potential for future landslide disasters. The level of landslide potential was determined based on slope conditions, soil types, rainfall, land use types, and potential earthquake risk. In general, morphological conditions in Majene Regency are dominated by slopes that are still covered in forests and receive relatively low rainfall, resulting in low landslide potential if seismic potential factors are not taken into account. Based on the results of an analysis that considers slope factors and potential seismic risks, the results of a map that illustrates the risk of landslide are quite high in several areas, are Malunda District, Ulumanda District, and Tubo Sendana District.
Analysis of Coal Quality on Mining Front and Ship Loading in East Kalimantan Province: Evaluasi Kualitas Batubara pada Front Penambangan dan Ship Loading di Provinsi Kalimantan Timur La Ode Muh Yazid Amsah; L.M. Hilman Kurnia; Anna Irada La Ode Malim
JURNAL GEOCELEBES Vol. 6 No. 1: April 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i1.19729

Abstract

This study aims to determine the quality of coal on the mining front and ship loading. The method used consists of literature study, sample collection and processing and data analysis using proximate analysis. The results of the analysis on the mining front obtained ash content 2.8%, total moisture 13.12%, volatile matter 39%, total sulfur 0.23%, fixed carbon 48%, calorie value 5.812 Kcal/Kg. On ship loading obtained ash content 3.89%, total moisture 14.15%, volatile matter 43.04%, fixed carbon 46%, total sulfur 0.25%, and calorie value 5.365 Kcal/Kg. The very different calorific value of 7.69% is influenced by changes in the total water content and ash content. This indicates a significant decline in coal quality.
Comparison of The Electrode Configuration of The Resistivity Geoelectric Method for Landslide Analysis on Highway Suban, Bandar Lampung: Analisis Kelongsoran dengan Metode Geolistrik Konfigurasi Wenner-Schlumberger dan Wenner-Alpha di Jalan Raya Suban Bandar Lampung Rafi Rilo Pambudi; Muhammad Nurul; Winona Putri Prihadita; Rahmi Mulyasari
JURNAL GEOCELEBES Vol. 6 No. 2: October 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i2.17903

Abstract

Jalan Raya Suban Bandar Lampung is located on the physiography of Bukit Barisan which is influenced by the movement of the Sumatran Fault, causing morphological conditions in the form of hills and steep slopes. This condition triggers the occurrence of disasters, one of which is landslides. In this study, the lithology of subsurface rocks and slides in the landslide-prone zone was examined using the Wenner-Schlumberger and Wenner-Alpha configuration geoelectrics. The Wenner-Schlumberger configuration has deeper penetration but lower resolution subsurface images, while the Wenner-Alpha configuration has less deep penetration but lower resolution surface images. The use of these two configurations is to take advantage of the advantages and reduce the disadvantages of each configuration in landslide analysis. The measurement results in the Wenner-Schlumberger and Wenner-Alpha configurations identified that the upper layer consists of weathered rock associated with clay tuff and sandy tuff with a resistivity of 1 m – 95.6 m, the second layer is clay sand from the Campang Formation with a resistivity value of 95.6 m – 250 m and the third layer is a mixture of breccia and igneous rock from the Tarahan Formation with a resistivity value of more than 250 m. The clay-sand layer was identified as the slip plane in the study area
Limit Equilibrium Method for the Slope Stability Analysis of Coal Mining at PT. Kalimantan Prima Nusantara: Analisis Stabilitas Lereng Tambang Batubara dengan menggunakan Metode Limit Equilibrium pada PT. Kalimantan Prima Nusantara Andi Al’Faizah Ma’rief; Hedianto Hedianto; Nur Okviyani; Enni Tri Mahyuni; Abdul Affan
JURNAL GEOCELEBES Vol. 6 No. 2: October 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i2.19891

Abstract

Various problems on a slope can be influenced by several factors such as slope geometry and also the property value of the slope. The polemic regarding the exhibition conducted on the mining business license of PT. Kalimantan Prima Nusantara which has an area of 1500 hectares. PT. Kalimantan Prima Nusantara, there is a coal mining company located in Kapuas Regency, Central Kalimantan. The slope conditions in the mining area require attention to the stability of the slopes due to the lithological conditions of the research area found types of sedimentary rocks in terms of engineering geology or rock mass weathering class into the rock category. highly weathered – rock that is completely weathered. The purpose of this study is to analyze the mine slopes at GT-01 – GT-02 (South block pit) GT-03 – GT-04 (Central block pit), GT-05 – GT-06 (North block pit). The research used the balance limit method or the Bishop's method to see whether the shear strength on a slope (shear strength) has a high or low safety value. This is based on kinetic analysis by relying on inputs such as cohesion, bulk density, and internal shear angle. The results of this study indicate that the condition of the rock layers on the slopes are dominated by sedimentary materials such as claystone, siltstone and sandstone. The overall slope shows a slope angle of 35°-50 ° and based on the results of the analysis of the condition of the slopes on GT-01 to GT-06 it shows a stable condition with an average factor value of FK =>2.
Investigating Seasonal Variations of Soil Thermal Properties (STPs) Under Different Land Use Patterns in Abeokuta, Southwest Nigeria Saheed Adekunle Gainiyu; Oluwafemi Ayomide Shobowale; Yaya Korede Sikiru
JURNAL GEOCELEBES Vol. 6 No. 2: October 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i2.21866

Abstract

Soil thermal properties (STPs) command the storage and transfer of thermal energy through the soil matrix, which can be changed by land use systems and seasonal changes. Depiction of STPs based on land uses and seasonal changes eases better understanding of trend of periodic disparity of soil heat flux across varied land use practices. This study assesses the seasonal and land use prompted variability of STPs such as thermal conductivity (λs), thermal resistivity (TR), specific heat capacity (Cs), thermal diffusivity (TD) and temperature of sandy loam topsoils under different land uses: Dumpsite (DS), block-making site (BMS), abattoir site (ABS), and grassland (GL). Seasonal changeability of the STPs was determined by two reiterations of aforementioned STPs measurements during the wet (April/May, 2019) and dry (January/February, 2020) seasons. The STPs were measured in situ utilizing KD2 Pro Thermal Analyzer. The research discloses that STPs are impacted by land use substantially. All the observed STPs were not differ significantly among the studied land uses during the wet season. However, statistically substantial variations in Cs and TD of topsoils under all investigated land uses were recognized during the dry season. Moreover, no significant alteration in the mean soil temperature was observed among the sampling land uses during the dry season. The result of the present study inspires more studying the seasonal changeability of STPs based on a more agricultural and economically related land uses as well as broad sampling design to account for their spatial changeability. The findings of this study will assist land users to make best choice of appropriate land management practices for viable agriculture and environmental management.
Subsurface Profile Analysis for Aquifer Layer Identification: Analisis Profil Bawah Permukaan untuk Identifikasi Lapisan Pembawa Air Syarifullah Bundang; Muhammad Fawzy Ismullah Massinai; Firman Firman; Wahyu Hidayat
JURNAL GEOCELEBES Vol. 6 No. 2: October 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i2.21911

Abstract

Bungaiya village is a village located in Gowa Regency which has volcanic rock lithology with one of the problems faced in volcanic rocks is that the rock porosity is small so that this layer cannot be an aquifer zone. But the water needs needed by the community for agriculture are very large. Geoelectric is a geophysical method that can be used to describe subsurface profiles, especially aquifer layers. The purpose of this study is to interpret using the geoelectric resistivity method, is the Wenner configuration method as many as 2 lines with a length of 470 m and a space of 10 m. The interpretation results on Line 1, there are 3 layers, are volcanic breccia with resistivity values ​​of 85.6 – 2.2013.19 Ωm and depths between 1.2 – 68 m, layer 2 of tuff with resistivity values ​​of 9.82 – 59.68 Ωm, depth of 12 – 76 m and the third layer is a volcanic breccia, resistivity value is 85.6 – 176 Ωm. Line 2 has 2 layers, are the first layer with a depth of 1.2 – 42 m with a resistivity value of 93 – 490.41 Ωm which is a volcanic breccia. The second layer at a depth of 1.2 – 78.8 m with a resistivity value of 30.9 – 77, 67 Ωm is tuff. Layers 1 and 2 show a similar subsurface profile. Based on these results, it can be concluded that the layer that functions as a water-carrying layer is tuff with a resistivity value of 9.82 – 77.67 Ωm.

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