Articles
<![CDATA[PEMETAAN PENCEMARAN LINDI MENGGUNAKAN METODE GEOLISTRIK 3 DIMENSI ]]>
<![CDATA[Alaydrus, Alfina Taurida]]>;
<![CDATA[Minardi, Suhayat]]>;
<![CDATA[Ardianto, Teguh]]>
<![CDATA[ Lensa : Jurnal Kependidikan Fisika Vol 2, No 1: June 2014 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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<![CDATA[One of the impacts of waste management is the presence of side-residual landfill waste that causes pollution potential of pollutants results in the form of decaying garbage leachate. This contamination occurs around the landfill Kebon Kongok impacting environmental degradation around the landfill area. To determine the extent to which and how the subsurface conditions around the landfill Kebon Kongok it will do the mapping and modeling using 3-dimensional (3D) geoelectrical method. The study was conducted on 3 pieces of lines are trending relative Southwest-Northeast. Each track has a length of 150m and retrieval of data using a dipole – dipole configuration-with spacing of 10m length. Resistivity measurements carried out with resistivitimeter GL-4100 GSound type and processed with software Res3Dinv. From the analysis it can be concluded that the entire study area has been contaminated by leachate polution, especially in the surface layer to a depth of 13.9 meters.]]>
<![CDATA[Rancang Bangun Alat Ukur Monitoring Dan Pengukuran Kontaminasi Tanah (Studi Kasus: Desa Pelangan Kecamatan Sekotong) ]]>
<![CDATA[Alfina Taurida Alaydrus]]>;
<![CDATA[Teguh Rifandi]]>;
<![CDATA[Laili Mardiana]]>;
<![CDATA[Kasnawi Al Hadi]]>;
<![CDATA[Suhayat Minardi]]>
<![CDATA[ JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 4 No. 1 (2018): Jurnal Sains Teknologi & Lingkungan ]]>
Publisher : <![CDATA[LPPM Universitas Mataram ]]>
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DOI: 10.29303/jstl.v4i1.47
<![CDATA[Gold processing waste contains many chemicals compound such as mercury and cyanide, which may help change the physical character of soil. In this study, the temperature, humidity and soil pH has been measured. Measurements of temperature and soil moisture are carried out using SHT11 sensors directly during gold processing. Measurements were carried out around the pond in three different directions. Each direction has 6 points, spaced 5 m apart. Measurements at one point are carried out for 20-21 hours. The measurement results are then mapped to a contour using Surfer-13. Based on the measurement results, obtained temperature values for all points are in the range 25.2-30.3 °C. While the value of soil moisture around 63.8-89.9%, and the soil pH value ranged from 6.8 to 8.1. The mapping results shows the distribution of temperature, humidity and soil pH with almost the same pattern, where the mercury concentration is linear with soil temperature, and soil pH, but non-linear with soil moisture]]>
<![CDATA[Estimation Of Mangaan Carrier Rock Volume Using Geoelectric Method In Empol Sub-Village, West Lombok Regency ]]>
<![CDATA[Dieni Haryati Utami]]>;
<![CDATA[Alfina Taurida Alaydrus]]>;
<![CDATA[Suhayat Minardi]]>
<![CDATA[ Kappa Journal Vol 4 No 2 (2020): Desember ]]>
Publisher : <![CDATA[Universitas Hamzanwadi ]]>
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DOI: 10.29408/kpj.v4i2.2731
<![CDATA[The research has been done using geoelectric resistivity method to estimate the volume of Manganese (Mn) carrier rock in Empol sub-village, Central Sekotong Village, West Lombok NTB. Measurements was conducted with the Wenner configuration using a Resistivity Meter G-Sound GL - 4100. Data was modeled and calculated using three software, there are Res2Dinv 3.5, Surfer 10, and Rockwork 15. The rocks that regarded as carrier mangaan is pyrolusite manganese (Mn02). The description and distribution of MnO2 can be determined from the results of 2-dimension modeling using Res2Dinv. Mn02 was detected in almost all resistivity line with value around 0,023 Wm up to 9,8 Wm. From the 3-dimension visualization processed using RockWorks 15 software, we obtained volume of pirolusit about 38,199 m3 of area 160,000 m2 and 100 m of thickness.DOI: 10.29408/kpj.v4i2.2731]]>
<![CDATA[Korelasi Hambatan Jenis dan Hambatan Konus untuk Identifikasi Zona Lemah Di Desa Sekotong Barat, Kecamatan Sekotong, Kabupaten Lombok Barat ]]>
<![CDATA[Suhayat Minardi]]>;
<![CDATA[Rima Yudiana]]>;
<![CDATA[Alfina Taurida Alaydrus]]>
<![CDATA[ Jurnal Penelitian dan Pembelajaran Fisika Indonesia Vol. 2 No. 2 (2020) ]]>
Publisher : <![CDATA[Prodi Fisika FKIP Unram ]]>
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DOI: 10.29303/jppfi.v2i2.73
<![CDATA[Ancaman kerusakan bangunan dan infrasruktur lainnya disebabkan oleh adanya zona lemah di bawah permukaan yang dapat menyebabkan bencana alam, seperti likuifaksi, khususnya di pesisir pantai, yang dicirikan memiliki muka air tanah dangkal, tingkat kepadatan lapisan tanah sangat lepas dan geologi daerah terdiri dari batu pasir dan endapan aluvium. Penelitian ini bertujuan untuk menentukan nilai hambatan jenis (resistivitas) dan hambatan konus dari zona lemah di Desa Sekotong Barat, Kecamatan Sekotong Kabupaten Lombok Barat dan bagaimana hubungan empiris nilai resistivitas dengan hambatan konus. Penelitian ini dilakukan menggunakan metode geolistrik konfigurasi Wenner dengan jumlah 6 lintasan dan panjang setiap lintasan 200 meter dan juga menggunakan uji sondir pada 3 titik. Berdasarkan hasil interpretasi data diperoleh litologi batuan di daerah penelitian terdiri dari lapisan pasir jenuh air, lempung lanauan, lempung pasiran dan pasir padat. Hasil inversi data geolistrik menunjukkan keberadaan zona lemah membentang pada seluruh daerah penelitian kecuali pada lintasan 3 dan lintasan 4 yang ditafsirkan tidak berbahaya bagi bangunan diatasnya karena tersusun oleh zona kuat. Diperoleh zona lemah dengan nilai resistivitas kurang dari 10 yang diidentifikasi sebagai lapisan pasir jenuh air dan lempung lanauan dan dibuktikan pula dengan hasil uji sondir memiliki nilai hambatan konus kurang dari 20 kg/cm2. Resistivitas dan hambatan konus berbanding lurus dan hubungan empiris yang dihasilkan berupa grafik polinomial orde tiga dengan koefisien determinasi.0,804]]>
<![CDATA[PEMBERDAYAAN MASYARAKAT PESISIR DENGAN INOVASI BUDIDAYA UDANG VANAMI MENGGUNAKAN KOLAM TERPAL BERBASIS BAMBU ]]>
<![CDATA[alfina taurida alaydrus]]>;
<![CDATA[susi rahayu]]>
<![CDATA[ Jurnal Warta Desa (JWD) Vol. 1 No. 2 (2019): Jurnal Warta Desa (JWD) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat Universitas Mataram ]]>
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DOI: 10.29303/jwd.v1i2.63
<![CDATA[Kemiskinan merupakan permasalahan utama masyarakat wilayah pesisir. Padahal, lingkungan tempat tinggal yang dekat dengan laut memiliki potensi budidaya aneka jenis ikan dan hewan laut lainnya salah satunya udang. Kendala utama pada budidaya udang secara intensif adalah tingginya biaya yang diperlukan untuk pembuatan tambak. Untuk itu, pada kegiatan ini akan dilakukan budidaya udang vanami menggunakan inovasi tambak udang menggunakan teknologi bioflok berbasis kerangka bambu. Inovasi ini diharapkan dapat mereduksi biaya pemeliharaan kolam bioflok berbasis besi yang sudah dikembangkan sebelumnya. Kolam bioflok dibuat dengan diameter 5 meter dengan pengikat tali nilon. Tiang bambu dibuat dengan jarak 3-5 cm. Setiap bambu dijahit dengan tali nilon untuk meningkatkan kekuatan kerangka dari gaya dorong air. Kolam terpal berbasis bambu sudah dapat digunakan oleh masyarakat pesisir sebagai alternative pengganti kolam terpal kerangka besi. Keuntungan pengembangan inovasi kolam ini yaitu tidak perlu perawatan tiap tahun seperti hal nya kolam terpal berbasis besi. Sehingga dapat mengurangi baiaya pemeliharaan setiap tahun.]]>
<![CDATA[Analysis the Effect of Physical Parameters on Groundwater Salinity in the KEK Mandalika Lombok ]]>
<![CDATA[Alfina Taurida Alaydrus]]>;
<![CDATA[Adi Susilo]]>;
<![CDATA[Suhayat Minardi]]>;
<![CDATA[Agus Naba]]>;
<![CDATA[Agus Wahid]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 9, No 2: December 2021 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v9i2.4437
<![CDATA[KEK Mandalika is located in a coastal area which is very vulnerable to changes in the quantity and quality of groundwater due to seawater intrusion. This study aims to detect the presence of aquifers (groundwater), seawater intrusion and analyze the effect of physical parameters to determine groundwater quality in the KEK Mandalika area. The physical parameters used are: resistivity, conductivity, Total Dissolved Solid (TDS) and salinity. The resistivity value was obtained using the geoelectric resistivity method with 10 lines using a dipole-dipole configuration, while the other parameters were obtained through 10 samples of well water which were located adjacent to the geoelectric line. Resistivity geoelectrical data processing using Res2Dinv software, Surfer13 software to observe the spread of each parameter and perform regression analysis to see the effect of resistivity, conductivity, TDS on salinity. The results obtained are geoelectric resistivity in the form of an aquifer layer around the KEK Mandalika at a depth of (2 – 12) meters with resistivity values ranging from (0 – 2257) Ωm. The results of groundwater samples are: conductivity with values ranging from (1.02 – 20) mS/cm, TDS with values ranging from (67.3 – 3070) mg/L and salinity with values ranging from (0.05 – 2.07) ppt. The effect of conductivity, TDS on salinity is directly proportional, while the effect of resistivity on salinity is inversely proportional. Most of the KEK Mandalika area is likely to experience seawater intrusion, especially in the Eastern region.]]>
<![CDATA[PEMETAAN PENCEMARAN LINDI MENGGUNAKAN METODE GEOLISTRIK 3 DIMENSI ]]>
<![CDATA[Alfina Taurida Alaydrus]]>;
<![CDATA[Suhayat Minardi]]>;
<![CDATA[Teguh Ardianto]]>
<![CDATA[ Lensa: Jurnal Kependidikan Fisika Vol 2, No 1: June 2014 ]]>
Publisher : <![CDATA[Universitas Pendidikan Mandalika ]]>
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DOI: 10.33394/j-lkf.v2i1.301
<![CDATA[One of the impacts of waste management is the presence of side-residual landfill waste that causes pollution potential of pollutants results in the form of decaying garbage leachate. This contamination occurs around the landfill Kebon Kongok impacting environmental degradation around the landfill area. To determine the extent to which and how the subsurface conditions around the landfill Kebon Kongok it will do the mapping and modeling using 3-dimensional (3D) geoelectrical method. The study was conducted on 3 pieces of lines are trending relative Southwest-Northeast. Each track has a length of 150m and retrieval of data using a dipole – dipole configuration-with spacing of 10m length. Resistivity measurements carried out with resistivitimeter GL-4100 GSound type and processed with software Res3Dinv. From the analysis it can be concluded that the entire study area has been contaminated by leachate polution, especially in the surface layer to a depth of 13.9 meters.]]>
<![CDATA[Volcanic Sediment Layer of Mount Samalas 1257 AD Modeling Based on Seismic Data ]]>
<![CDATA[Suhayat Minardi]]>;
<![CDATA[Teguh Ardianto]]>;
<![CDATA[Alfina Taurida Alaydrus]]>;
<![CDATA[Hiden Hiden]]>
<![CDATA[ Indonesian Journal of Physics Vol 30 No 2 (2019): Vol 30 No 2 (2019) ]]>
Publisher : <![CDATA[Institut Teknologi Bandung ]]>
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DOI: 10.5614/itb.ijp.2019.30.2.1
<![CDATA[Research to determine model of sediment volcanic layer of Mountain Samalas 1257 AD has been conducted in Lombok Island. Modeling based to surface wave velocity data which collect use MASW (multichannel analysis of surface wave) method. The method has applied at 6 locations in southern part relatively and models were made on southern and southeastern of eruption source. Grouping of volcanic layer was based on IBC 2003 (ICC, 2003), TSC, 1998 (Ministry of Public Works and Settlement Government of Republic of Turkey, 1998) criteria. Result of modeling was verified using outcrop at the measurement of seismic area. Volcanic layer groups that detect are C, D, E type which have velocity less than 400 ms-1 and it’s thickness less than 50 meters. The volcanic layer group consist of sand, kerikil, clay, batuapung, volcanic ash, and alluvium. All of types of volcanic rocks has founded at all seismic measurement locations with different thickness and composition.]]>
<![CDATA[Surface Deformation Monitoring Using Time-lapse Microgravity Method in Central and East Lombok Regencies ]]>
<![CDATA[Suhayat Minardi]]>;
<![CDATA[Teguh Ardianto]]>;
<![CDATA[Alfina Taurida Alaydrus]]>
<![CDATA[ Indonesian Journal of Physics Vol 31 No 2 (2020): Vol 31 No 2 (2020) ]]>
Publisher : <![CDATA[Institut Teknologi Bandung ]]>
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DOI: 10.5614/itb.ijp.2020.31.2.3
<![CDATA[Surface deformation is a natural occurrence on the surface of the earth. The deformation can be in the form of subsidence or uplifting of the land surface. In this research, an time-lapse microgravity method will be applied to monitor surface deformation that occurs in Central Lombok and East Lombok Districts. The method of time-lapse microgravity is repetitive gravity measurement at the same point with a certain time interval, the measured magnitude is a change in the value of the acceleration of gravity and the microGal scale. Measurements were made in August 2016, April 2018, and June 2019. The measured value of the change in gravitational acceleration is the superposition of the changes caused by subsurface and surface sources. Separation of the two values is carried out using striping filter, which takes into account the ratio of density, thickness, and depth of the surface and subsurface layers. Land subsidence occurred during the period August 2016 to April 2018 and land uplifting occurred during the April 2018 to June 2019 period. This land subsidence occurred due to natural compacting and minor tectonic activity (small earthquakes that were not felt) while land uplifting was occurred due to major tectonic activities, in the form of the Lombok Earthquake in July to September 2018.]]>
<![CDATA[Monitoring Dinamika Fluida Menggunakan Metode Geolistrik Antarwaktu Di Kawasan Mandalika, Pulau Lombok ]]>
<![CDATA[Deska Yolantari]]>;
<![CDATA[Suhayat Minardi]]>;
<![CDATA[Alfina Taurida Alaydrus]]>
<![CDATA[ JURNAL PERTAMBANGAN DAN LINGKUNGAN Vol 4, No 1 (2023): Juni 2023 ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Mataram ]]>
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DOI: 10.31764/jpl.v4i1.13377
<![CDATA[Abstrak. Dinamika fluida akan mempengaruhi sifat fisis dari fluida yang ada di bawah permukaan. Apabila terjadi intrusi, maka resistivitas batuan bawah permukaan akan berkurang. Sebaliknya, apabila air mengalir dari darat ke laut pada musim penghujan, maka resistivitasnya akan semakin bertambah. Penelitian ini bertujuan untuk mengetahui volume dinamika fluida dalam selang waktu 6 bulan di kawasan Mandalika. Pulau Lombok. Akuisisi data menggunakan metode geolistrik resistivitas konfigurasi dipole-dipole, sebanyak 37 lintasan. Pengukuran pertama dilakukan pada Maret 2022 dan pengukuran kedua dilakukan pada Agustus 2022 Dengan volume total dari selang waktu 6 bulan yaitu 336.000.000 , perubahan resistivitas bernilai positif memiliki volume sebesar 86.980.000 , volume perubahan resistivitas bernilai negatif sebesar 22.700.000 m3 dan resistivitas bernilai konstan memiliki volume sebesar 276.600.000 m3.]]>
