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Ibrahim Sota

Prodi Fisika FMIPA Universitas Lambung Mangkurat

Author-ID : 3135517

Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics

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Identifikasi Diskontinuitas Seismik Mantel di Barat Laut Pulau Sumatera Menggunakan Data Prekursor SS Fahruddin Fahruddin; Apriadi Apriadi; Ibrahim Sota; Sadang Husain
Jurnal Fisika FLUX Vol 17, No 2 (2020): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

410km and 660km discontinuities are very clear and very easily identified discontinuities other than the Moho layer. This research utilizes SS precursor data, bouncepoints in the northern part of Sumatra. The data used is the depth of the epicenter <70 km, earthquake magnitude 5.5 and the distance between the epicenter and earthquake recording station more than 1000. This study is a preliminary study to determine changes in the depth of discontinuity in the study area. The SS phase is very well observed in the transversal component seismogram which is the result of the rotation of two horizontal components NS and EW, to obtain a good seismogram a 0.03Hz low pass filter is performed. In this study used 38 data transversal component seismograms, from 76 horizontal component seismograms. The most important thing in this study is the determination of the SS phase used as a reference (point 0), the SS phase is determined using the AK135 table guide, then the SS precursors are determined which can be seen at 450 seconds, 300 seconds, 90 seconds and 50 seconds before the SS . SS prekursors that are very clear at 450 seconds, are strongly suspected as a 660 km discontinuity. SS prekursors can be seen clearly after the stacking process.

INTERPRETASI SEBARAN BATUBARA BERDASARKAN DATA WELL LOGGING DI DAERAH BLOK X PULAU LAUT TENGAH KABUPATEN KOTABARU Julkipli Julkipli; Simon Sadok Siregar; Ibrahim Sota
Jurnal Fisika FLUX Vol 12, No 1 (2015): Jurnal Fisika FLUX Edisi Februari 2015
Publisher : Lambung Mangkurat University Press

Research has been done using well logging methods to interpreted coal distribution in the area BlockX Pulau Laut Tengah Kabupaten Kotabaru. Coal identification was changed ofkickongamma ray log chart which run to minimum value with seam A range from to 1,3 16,76 API, seam C range from to 5,02 12,44 APIand seam D range from to 0,56 7,38 API. Long density log which kick on chart run to maximum value with seam A range from to 1,16 1,39 gr/cm3, seam C range from to 1,60 1,74 gr/cm3and seam D range from to 1,82 2,22 gr/cm3. Resistivity log which kick on chart run to maximum value with seam A range from to 1.189,74 2.407,15 Ohm.m, seam C range from to 2.223,80 2.328,84 Ohm.m and seam D range from to 6,06 105,65 Ohm.m. Measurement ofcoal thickness is based on chart of long density and short density logs with seam A 0,16 119,55 m depth and 0,11 0,40 m thickness, seam C 0,20 52,89 m depth and 0,11 0,40 m thickness and seam D 0,21 37,13 m depth and 0,41 0,42 m thickness. Coal distribution has been strike N212°E and dip10°N302° E. Measurement method of coal resource was made two planes with volume measuredcoal resources about 2.273.792,69 tons.

ANALISIS DINAMIKA SEBARAN SPASIAL SEDIMENTASI MUARA SUNGAI CANTUNG MENGGUNAKAN CITRA LANDSAT MULTITEMPORAL Zulaiha Zulaiha; Nurlina Nurlina; Ibrahim Sota
Jurnal Fisika FLUX Vol 11, No 1 (2014): Jurnal Fisika FLUX Edisi Februari 2014
Publisher : Lambung Mangkurat University Press

ABSTRACT: Given the pivotal role played by the Cantung River for the supervision and management of the public good becomes important. Incoming sediment load can damage the uncontrolled flow conditions of the Cantung river and estuary. Observations of suspended sediment can take advantage of multitemporal Landsat imagery. This study uses Landsat satellite image data corrected 5TM March 5, 1992 data acquisition path/row 117/62, Landsat data acquisition 5TM 22 May 1997 path/row 117/62, Landsat data acquisition 5TM March 27, 2000 the path/row 117/62. Several stages in processing the image, that is the conversion of DN to reflectance values, cropping, water-not water secession, and the class divide sediment concentration by density slicing technique. Spatial distribution of suspended sediment in the estuary of the Cantung River Landsat image processing results 5TM March 5, 1992, Landsat 5TM May 22, 1997, and March 27, 2000 Landsat 5TM show distribution patterns of suspended sediment from the River Cantung the same direction, that is northeast. Sediment concentrations were detected in the Landsat image processing 5TM March 5, 1992 the largest-value 27,564096 mg/l and the smallest 14,886048 mg/l. Sediment concentrations were detected in the Landsat image processing 5TM May 22, 1997 the largest-value 121,476776 mg/l and the smallest 12,647415 mg/l. Sediment concentrations were detected in the Landsat image processing 5TM March 27, 2000 most valuable 159,256704 mg/l and the smallest 10,584161 mg/l. Getting away from the effect Cantung River estuary sediment concentration of river flow Cantung tends to get smaller. Changes in the distribution area of the sediments of March 5, 1992 until March 27, 2000 amounted to 450 m2/year. Keywords: Remote Sensing, Sedimentation, Landsat, Cantung River

Identifikasi Daya Dukung Batuan untuk Rencana Lokasi Tempat Pembuangan Sampah di Desa Tulaa, Bone Bolango Ahmad Zainuri; Ibrahim Sota
Jurnal Fisika FLUX Vol 8, No 2 (2011): Jurnal Fisika Flux Edisi Agustus 2011
Publisher : Lambung Mangkurat University Press

Masalah sampah adalah masalah klasik yang sudah lama melanda kotakotabesar di Indonesia. Masalah tersebut muncul karena terbatasnya lahan kosongyang dapat dijadikan sebagai tempat pembuangan akhir sampah, sementara produksisampah tiap hari terus berlangsung. Pemda Bone Bolango juga tak luput daripermasalahan tersebut. Oleh karena itu, mereka mencari lokasi tempat pembuangansampah yang transportasinya mudah di jangkau dari kota Kabila, jauh dari saranaumum dan pemukiman warga. Atas dasar hal tersebut desa Tulaa dipilih sebagairencana lokasi tempat pembuangan sampah. Namun untuk mengetahui daya dukungbatuan bawah permukaan di lokasi yang akan dijadikan tempat pembuangan sampahmaka perlu dilakukan penelitian geofisika dengan metode geolistrik resistivitaskonfigurasi schlumberger. Hasil interpretasi pengukuran geolistrik diperoleh bahwalokasi desa Tulaa kurang baik karena tidak adanya lapisan kedap air yang menutupilapisan air tanah (akuifer), sehingga sangat mungkin ketika ada limbah cair darisampah, limbah tersebut akan terinfiltrasi ke dalam tanah sampai ke lapisan akuiferdan pada akhirnya akan mencemari air tanah.

PENENTUAN LAPISAN AKUIFER AIR TANAH DENGAN METODE GEOLISTRIK KONFIGURASI CHLUMBERGER DI DESA SUNGAI JATI KECAMATAN MATARAMAN KABUPATEN BANJAR KALIMANTAN SELATAN Dinisa Hanifa; Ibrahim Sota; Simon Sadok Siregar
Jurnal Fisika FLUX Vol 13, No 1 (2016): Jurnal Fisika FLUX Edisi Februari 2016
Publisher : Lambung Mangkurat University Press

Telah dilakukan penelitian untuk mencari lapisan akuifer air tanah di Desa Sungai Jati sebagai dasar dalam perencanaan dalam pembuatan sumur bor. Salah satu cara untuk mengetahui potensi keberadaan air tanah adalah melakukan pengukuran geolistrik dengan konfigurasi schlumberger. Hasil penelitian geolistrik konfigurasi schlumberger menunjukkan struktur lapisan batuan di Desa Sungai Jati pada titik pengukuran GL1, GL2, GL3, GL4, GL5 dan GL6 terdiri dari lapisan lapuk, batu pasir, lanau, lempung, dan lempung gampingan karena Sungai Jati termasuk kedalam formasi Keramaian (Kak). Sebaran akuifer air tanah tersebar pada lapisan batu pasir dengan kedalaman akuifer air tanahnya bervariasi. Hasil interpretasi diketahui tebal lapisan berkisar antara 2 – 11 meter dengan kedalaman sekitar 6 – 40 meter dengan nilai resistivitas 100 – 450 Ωm. Secara keseluruhan semakin ke bawah jenis batuanya semakin padat, lapisan ini kurang bersifat sebagai lapisan pembawa air (akuifer). Lapisan air tanah yang berpotensi untuk pembuatan sumur bor dengan kualitas dan kuantitas yang cukup baik terdapat lapisan impermeable pada bagian atas dan bawah sedangkan pada Desa Sungai Jati merupakan akuifer bebas dimana lapisan impermeable hanya terdapat pada lapisan di bawah lapisan akuifer. Kata kunci : geolistrik, konfigurasi schlumberger, akuifer

Co-Authors Ahmad Zainuri Andi Ihwan Apriadi Apriadi Arifudin Arifudin Dinisa Hanifa Erihartanti Erihartanti Fahruddin Fahruddin Husain, Sadang Julkipli Julkipli Muhammad Fadhil Muhammad Hasan Basri Nurlina Nurlina Putri Hapsari Shinta Khalidah Simon Sadok Siregar, Simon Sadok Siti Rusita Sri Cahyo Wahyono Sudarningsih Sudarningsih Sumaos Triningsih Tri Armando Hidayati Zulaiha Zulaiha

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