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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics
Sutrisno Sutrisno
Program Studi Fisika, Fakultas Sains dan Teknologi, Universitas Islam Negeri Syarif Hidayatullah, Jakarta
Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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 1 
Identifikasi Uranium dan Thorium di Desa Takandeang Mamuju Sulawesi Barat dengan Menginterpretasikan Data Radiometri Tanah atau Batuan Mutia Khairani; Sutrisno Sutrisno; Frederikus Dian Indrastomo
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.1
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1040.669 KB) | DOI: 10.15408/fiziya.v1i1.8993

Abstract

 Abstrak. Hasil survey dosis radiasi lingkungan menunjukkan di daerah Mamuju memiliki nilai laju dosis radiasi (radioaktivitas) yang cukup tinngi.Nilai radioaktivitas tinggi yang dijumpai pada batuan diperkirakan berasal dari keterdapatan kandungan radioaktif alami seperti unsur uranium (U) dan thorium (Th). Penelitian yang dilakukan bertujuan untuk mendapatkan kesimpulan unsur radioaktif apa yang mempengaruhi nilai laju dosis di daerah tersebut tinggi. Metode penelitian yang diterapkan adalah pengukuran radiometri, penentuan nilai ambang (threshold), menentukan populasi anomali pada unsur radioaktif dari data radiometri dengan menggunakan metode kurva probabilitas, interpolasi kriging dengan metode ordinary kriging dan analisis peta sebaran laju dosis, peta sebaran uranium, dan peta sebaran thorium. geologi daerah penelitian tersusun atas batugamping, batu lava, batuan breksi dan endapan aluvial. Berdasarkan hasil analisis diketahui bahwa nilai laju dosis tinggi mencapai 4.271,3 nSv/h di Desa Takandeang dipengaruhi oleh keterdapatan unsur thorium, dengan kadar 435,7 ppm eTh dan uranium berkadar 426 ppm eU. Abstract. Survey results of environment radiation in Mamuju show that the value of dose rate of radiation (radioactivity) is high enough. That high radioactivity value that is found in rocks is hypothesized to be generated by natural radioactive unsure such as uranium (U) and thorium (Th). The aim of this study is to get conclusion of what radioactive unsure that influences high dose rate in that region. The methods in this study are radiometry measurement, determination of treshold, determination of anomaly population on radioactive unsure from radiometry data using probability curve method, kriging interpolation with ordinary kriging method and analysis of dose rate distribution map, uranium distribution map, and thorium distribution map. The geology of studied region is composed of limestones, lava rocks, breccia rocks, and alluvial sediments. Accroding to the result of analysis, we conclude that the value of high dose rate in Takandeang Village that reaches 4.271,3 nSv/h is influenced by thorium, with level 435,7 ppm eTh and uranium with level 426 ppmeU. 
Identifikasi Objek Bawah Permukaan Untuk Fondasi Jalan Tol di Jakarta Menggunakan Metode Ground Penetrating Radar (GPR) Pada Segmen Area Y Tika Devi Widayanti; Sutrisno Sutrisno; Titi Anggono
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.3
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v3i2.17764

Abstract

Penelitian ini dilakukan di Jakarta dengan tujuan untuk mendeteksi keberadaan utilitas di bawah permukaan tanah sebelum dilakukan pembangunan fondasi jalan tol. Saat ini Jakarta sedang melakukan pembangunan infrastruktur jalan tol. Untuk itu perlu diketahui apakah ada utilitas di bawah permukaan tanah yang dapat mengganggu pembangunan fondasi jalan tol. Penelitian ini dilakukan dengan menggunakan metode Ground Penetrating Radar (GPR). Terdapat 32 lintasan yang datanya telah diolah menggunakan software reflexw 2008. Dari hasil pengolahan dan interpretasi adanya material pasir kering dengan kecepatan gelombang 0,140 m/ns pada kedalaman ~1-2m. Jenis anomali dari radargram menggambarkan lempengan berbentuk kotak dan hiperbola yang menunjukkan utilitas berbentuk silinder. Dari lintasan 1 – 32 terdapat 115 utilitas yang bisa mengganggu pembangunan fondasi jalan tol. Lintasan 5 merupakan lintasan yang paling banyak adanya utilitas terdeteksi sebanyak 6, sedangkan lintasan 10, 23 dan 28 memiliki utilitas terdeteksi paling sedikit sebanyak 2, untuk lintasan 18 dan 19 memiliki 5 utilitas terdeteksi, kemudian lintasan 2, 3, 7, 8, 11, 12, 16, 20, 22, 25, 26, 27, 29, 30, 31 terdapat 4 utilitas terdeteksi, dan lintasan 1, 4, 6, 9, 13, 14, 15, 17, 21, 24, 32 terdapat 3 utilitas terdeteksi. Dari utilitas yang terdeteksi itu perlu dilakukan konfirmasi dengan Lembaga yang mempunyai utilitas tersebut.  
Pemodelan 2D Batuan Bawah Permukaan Daerah Mamuju Sulawesi Barat Dengan Menggunakan Metode Magnetik Muhammad Irsyad; Sutrisno Sutrisno; Dwi Haryanto
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.1
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (682.951 KB) | DOI: 10.15408/fiziya.v1i1.8999

Abstract

Abstrak. Batuan merupakan benda yang berasal dari magma yang mendingin di dalam bumi. Untuk mengetahui kondisi batuan perlu di lakukan penelitian. Mamuju merupakan daerah yang sedang hangat dalam perbincangan peneliti tentang bagaimana kandungan di bawah permukaan daerah Mamuju, Sulawesi Barat. Daerah ini juga merupakan daerah yang diteliti oleh instansi-instansi pemerintah termasuk PTBGN-BATAN. Penelitian ini bertujuan untuk melakukan pemodelan bawah permukaan bumi. Tujuannya untuk memberikan informasi tentang kondisi baik itu bentuk maupun kedalaman batuan. penelitian ini menggunakan metode magnetik dan metode ini merupakan metode yang tepat untuk membuat model bawah permukaan bumi. Hasil interpretasi kualitatif diperoleh peta kontur intensitas magnetik total dan anomali magnetik. Peta kontur intensitas magnetik total memiliki nilai sebesar 41286,5 – 42280 nT. Sedangkan anomali magnetik memiliki nilai -760,1 – 231,8 nT. Daerah A dan daerah B merupakan daerah yang memiliki anomali tinggi. Hasil interpretasi kuantitatif didapat ada 4 model bawah permukaan yang masing-masing terdapat batuan yang sama yaitu batuan breksi dengan nilai suseptibilitas 0,0006 – 0,00075 satuan cgs dan batuan lava dengan nilai suseptibilitas 0.001 – 0.0015 satuan cgs. daerah yang dilakukan pemodelan fokus pada daerah Hulu Mamuju, hal ini disebabkan karena menurut peta kontur daerah tersebut merupakan daerah yang memiliki anomali magnetik yang tinggi.   Abstract. The rocks are objects derived from the magma cooled in the earth. To determine the condition of the rock is necessary to do research. Mamuju is an area that is warm in conversation investigators about how the content of subsurface area Mamuju, West Sulawesi. This area is also the area investigated by government agencies including PTBGN-BATAN. This study aimed to modeling subsurface. The goal is to provide information about the condition of both the shape and depth of rock. This study uses a magnetic method and this method is an appropriate method to create a model of the earth's subsurface. Qualitative interpretation of results obtained contour map of total magnetic intensity and magnetic anomalies. The total magnetic intensity contour map has a value of 41286.5 to 42280 nT. While the magnetic anomaly has a value of -760.1 - 231.8 nT. Area A and area B is an area that has a high anomaly. Results obtained quantitative interpretation there are 4 models of the subsurface that each contained the same rock is rock breccia with values susceptibility of 0.0006 to 0.00075 cgs units and lava rock with susceptibility value 0.001 - 0.0015 cgs unit. modeling area focuses on upstream area Mamuju, this is because according to the contour map of the area is an area that has a high magnetic anomaly.
Analisis Perubahan Garis Pantai Kabupaten Jembrana dengan Menggunakan Citra Satelit Landsat 8 Mega Fitria Istiqomah; Sutrisno Sutrisno; Adi Wijaya
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.1
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.606 KB) | DOI: 10.15408/fiziya.v1i1.8989

Abstract

 Abstrak. Kabupaten Jembrana mempunyai posisi yang strategis secara geografis, sebagai pintu gerbang Bali bagian barat yang merupakan kunci pertukaran dan percampuran budaya serta penduduk. Daerah ini berbatasan langsung dengan Selat Bali sehingga mendapat pengaruh angin laut yang membangkitkan gelombang dan pasang surut. Tujuan dari penelitian ini adalah untuk menganalisis perubahan garis pantai menggunakan teknologi penginderaan jauh pesisir Kabupaten Jembrana tahun 2013 hingga 2016. Metode yang digunakan dalam penelitian ini adalah metode penginderaan jauh menggunakan citra satelit Landsat 8 dan metode survei lapangan untuk mengetahui kondisi yang sebenarnya. Hasil penelitian ini menunjukkan bahwa perubahan garis pantai tahun 2013 sampai 2014 mengalami abrasi sebesar 801.717 m2 dan akresi sebesar 1348.564 m2, tahun 2014 sampai 2015 mengalami abrasi sebesar 4921.561 m2 dan akresi sebesar 388.969 m2, terakhir di tahun 2015 sampai 2016 perubahan akibat abrasi terjadi sebesar 384.637 m2 dan akresi sebesar 4431.331 m2.Abstract.Jembrana district has a strategic position geographically, as the gateway to west Bali which is the key exchange and the mixing of culture as well as residents. This area is directly adjacent to the Strait of Bali so it gets the sea breeze effect that evokes the waves and tides. The purpose of this study was to analyze the changes in the shoreline using remote sensing technology at Jembrana coast in 2013 to 2016. The method used in this research is the method of remote sensing using Landsat 8 satellite imagery and field survey methods to determine the actual condition. These results indicate that changes in the coastline of 2013 to 2014 experience abrasion of 801 717 m2 and accretion amounted to 1348,564 m2,2014 to 2015 experience abrasion of 4921,561 m2 and accretion amounted to 388 969 m2, the last in 2015 until 2016 the changes due abrasion occurs at 384 637 m2 and accretion amounted to 4431,331 m2.  
Analisis Seismisitas Berdasarkan Data Gempa Bumi Periode 1958-2018 Menggunakan b-Value Pada Daerah Selatan Jawa Barat dan Banten Ilman Luthfi Hilmi; Sutrisno Sutrisno; Dede Sunarya
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.2
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (629.946 KB) | DOI: 10.15408/fiziya.v2i1.10482

Abstract

The area of West Java and Banten, especially is Southern is one of the areas prone to earthquakes, caused by the fact that the area is part of the ring of fire path and the presence of faults that are still active faults, such as the Cimandiri Fault, the Baribis Fault and the Lembang Fault. The purpose of this study is to determine the level of seismic activity, the fragility of the rocks and the level of the return period to make earthquake resistant buildings. The seismotechnical parameters of a region can be calculated using the Frequency-Magnitude relationship with the Guttenberg-Rithcher formulation, namely  by using the Maximum Likelihood method. Based on the results of the research obtained from the combined data of USGS and BMKG, the magnitude of the 4 SR and the depths of 0-300 km. Based on the analysis and distribution of seismicity, it was found that the higher of the frequency the smaller earthquake magnitude is obtained. The results of the seismotechnical parameters provide variations of the b-value in South West Java and Banten around 0.95-1.45, with the highest value in the South of Pandeglang Regency (1.35-1.45) and the lowest in Tasikmalaya District (0.95-1.05). Variations of the a-values of an area around 6.5-9, while the highest value is in the South of Pandeglang Regency (8.5-9) and the lowest in Tasikmalaya Regency (6.5-7). The Seismicity Index is 0.632 and the Seismicity of the largest earthquakes is 0.004. Probability is at a time interval of 20 years with value as follows P (7.20) = 8%; P (7.40) = 15%; P (7.60); 21%. While variation of the return period are with variations of 5 SR = 1-4 years, 6 SR = 15-55 years and 7 SR = 150-550 years
Identification of Characteristics and Distribution of Subsurface Coal Using the 2D Geoelectric Method in Tanjung Palas Timur District, North Kalimantan Putri Sekar Ayuningsih; Sutrisno Dipl.Seis; Tati Zera; Nur Hidayat S.T, M,Si
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.23106

Abstract

Based on regional geology, Tanjung Palas Timur Subdistrict is included in the only formation, which includes coal seams. The depletion of oil and gas energy sources in Indonesia results in the need for other alternative energy sources, one of which is coal. This study aims to determine the characteristics of coal in the study area. This research was conducted in Tanjung Palas Timur Subdistrict, North Kalimantan using the geoelectric resistivity method with a pole-pole configuration and 8 tracks which are divided into 2 track blocks. The resistivity geoelectric method is used because it is very suitable for mining exploration. Data processing was done in 2D using Res2dinv software and 3D using Rockworks15 software. The results of the geoelectric data processing of line 1 to 8 show that the coal seam in the study area has a resistivity of 10-30 Ωm with a thickness varying from 17.22 m - 60 m as a type of lignite coal. In addition, the research area is also dominated by layers of clay and sandstones. The continuity of the coal seam is also seen in block 1 from line 3 in the southwest direction to line 1 in the northeast direction.
Identification of Iron Ore Deposit in Sub-Surface using Resistivity and Induced Polarization Methods at Sarakaman, Sebuku Island, South Kalimantan Merry Nur Rakhmawati; Sutrisno Sutrisno; Yanto Sudiyanto; Wahyu Hidayat
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.25648

Abstract

Iron is the second most abundant metal on earth. Sebuku Island is one of the areas in Indonesia that has potential for laterite iron ore. This study aims to detect the presence of mineralized zones and estimate the volume of iron ore. Therefore, geophysical research was carried out using the resistivity method and the Induced Polarization methods with the Wenner-Schlumberger configuration. The research was carried out in 4 paths along 475 m with a space between the electrodes of 5 meters. Based on modeling, 20 iron ore deposits were found in the study area on all trajectories characterized by high chargeability values ranging from 251,55 – 810,55 ms which correlated with low resistivity values of 4,02 – 124,41 m. Then it was found that the direction of the distribution of iron ore deposits in the study area was north-south and there was no continuous zone of iron ore deposits due to the long distance of the path. The volume of iron ore deposits in the study area in an area of ±39 hectares is estimated to be around 1.807.614 m3 with total reserves of iron ore deposits of 7.230.456 tons.
Pemodelan 2D Batuan Bawah Permukaan Daerah Mamuju Sulawesi Barat Dengan Menggunakan Metode Magnetik Muhammad Irsyad; Sutrisno Sutrisno; Dwi Haryanto
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.1
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v1i1.8999

Abstract

Abstrak. Batuan merupakan benda yang berasal dari magma yang mendingin di dalam bumi. Untuk mengetahui kondisi batuan perlu di lakukan penelitian. Mamuju merupakan daerah yang sedang hangat dalam perbincangan peneliti tentang bagaimana kandungan di bawah permukaan daerah Mamuju, Sulawesi Barat. Daerah ini juga merupakan daerah yang diteliti oleh instansi-instansi pemerintah termasuk PTBGN-BATAN. Penelitian ini bertujuan untuk melakukan pemodelan bawah permukaan bumi. Tujuannya untuk memberikan informasi tentang kondisi baik itu bentuk maupun kedalaman batuan. penelitian ini menggunakan metode magnetik dan metode ini merupakan metode yang tepat untuk membuat model bawah permukaan bumi. Hasil interpretasi kualitatif diperoleh peta kontur intensitas magnetik total dan anomali magnetik. Peta kontur intensitas magnetik total memiliki nilai sebesar 41286,5 – 42280 nT. Sedangkan anomali magnetik memiliki nilai -760,1 – 231,8 nT. Daerah A dan daerah B merupakan daerah yang memiliki anomali tinggi. Hasil interpretasi kuantitatif didapat ada 4 model bawah permukaan yang masing-masing terdapat batuan yang sama yaitu batuan breksi dengan nilai suseptibilitas 0,0006 – 0,00075 satuan cgs dan batuan lava dengan nilai suseptibilitas 0.001 – 0.0015 satuan cgs. daerah yang dilakukan pemodelan fokus pada daerah Hulu Mamuju, hal ini disebabkan karena menurut peta kontur daerah tersebut merupakan daerah yang memiliki anomali magnetik yang tinggi.   Abstract. The rocks are objects derived from the magma cooled in the earth. To determine the condition of the rock is necessary to do research. Mamuju is an area that is warm in conversation investigators about how the content of subsurface area Mamuju, West Sulawesi. This area is also the area investigated by government agencies including PTBGN-BATAN. This study aimed to modeling subsurface. The goal is to provide information about the condition of both the shape and depth of rock. This study uses a magnetic method and this method is an appropriate method to create a model of the earth's subsurface. Qualitative interpretation of results obtained contour map of total magnetic intensity and magnetic anomalies. The total magnetic intensity contour map has a value of 41286.5 to 42280 nT. While the magnetic anomaly has a value of -760.1 - 231.8 nT. Area A and area B is an area that has a high anomaly. Results obtained quantitative interpretation there are 4 models of the subsurface that each contained the same rock is rock breccia with values susceptibility of 0.0006 to 0.00075 cgs units and lava rock with susceptibility value 0.001 - 0.0015 cgs unit. modeling area focuses on upstream area Mamuju, this is because according to the contour map of the area is an area that has a high magnetic anomaly.
Analisis Perubahan Garis Pantai Kabupaten Jembrana dengan Menggunakan Citra Satelit Landsat 8 Mega Fitria Istiqomah; Sutrisno Sutrisno; Adi Wijaya
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.1
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v1i1.8989

Abstract

 Abstrak. Kabupaten Jembrana mempunyai posisi yang strategis secara geografis, sebagai pintu gerbang Bali bagian barat yang merupakan kunci pertukaran dan percampuran budaya serta penduduk. Daerah ini berbatasan langsung dengan Selat Bali sehingga mendapat pengaruh angin laut yang membangkitkan gelombang dan pasang surut. Tujuan dari penelitian ini adalah untuk menganalisis perubahan garis pantai menggunakan teknologi penginderaan jauh pesisir Kabupaten Jembrana tahun 2013 hingga 2016. Metode yang digunakan dalam penelitian ini adalah metode penginderaan jauh menggunakan citra satelit Landsat 8 dan metode survei lapangan untuk mengetahui kondisi yang sebenarnya. Hasil penelitian ini menunjukkan bahwa perubahan garis pantai tahun 2013 sampai 2014 mengalami abrasi sebesar 801.717 m2 dan akresi sebesar 1348.564 m2, tahun 2014 sampai 2015 mengalami abrasi sebesar 4921.561 m2 dan akresi sebesar 388.969 m2, terakhir di tahun 2015 sampai 2016 perubahan akibat abrasi terjadi sebesar 384.637 m2 dan akresi sebesar 4431.331 m2.Abstract.Jembrana district has a strategic position geographically, as the gateway to west Bali which is the key exchange and the mixing of culture as well as residents. This area is directly adjacent to the Strait of Bali so it gets the sea breeze effect that evokes the waves and tides. The purpose of this study was to analyze the changes in the shoreline using remote sensing technology at Jembrana coast in 2013 to 2016. The method used in this research is the method of remote sensing using Landsat 8 satellite imagery and field survey methods to determine the actual condition. These results indicate that changes in the coastline of 2013 to 2014 experience abrasion of 801 717 m2 and accretion amounted to 1348,564 m2,2014 to 2015 experience abrasion of 4921,561 m2 and accretion amounted to 388 969 m2, the last in 2015 until 2016 the changes due abrasion occurs at 384 637 m2 and accretion amounted to 4431,331 m2.  
Co-Authors Adi Wijaya Dede Sunarya Dwi Haryanto Frederikus Dian Indrastomo Ilman Luthfi Hilmi Mega Fitria Istiqomah Merry Nur Rakhmawati Muhammad Irsyad Mutia Khairani Nur Hidayat S.T, M,Si Putri Sekar Ayuningsih Tati Zera, Tati Tika Devi Widayanti Titi Anggono Wahyu Hidayat Yanto Sudiyanto