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Journal : Kappa Journal

IDENTIFIKASI SEBARAN BIJIH BESI MENGGUNAKAN METODE GEOMAGNET DI DESA PRINGGABAYA UTARA, KABUPATEN LOMBOK TIMUR Safitri, Ulfa Eka; Ardianto, Teguh; Anggraini, Lily Maysari
Kappa Journal VOL 4, NO 1 (2020): KAPPA JOURNAL
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research has been conducted which aims to determine the distribution of rocks containing iron ore using the geomagnetic method in the North Pringgabaya Village, East Lombok Regency, NTB. Retrieval of magnetic data was carried out with the Proton Precision Magnetometer (PPM) GEM-19T v7.0 in an area of 4 km2 with a measurement point spacing of 100 m and spacing between trajectories of 200 m. From the measurement data, daily and IGRF corrections were performed to obtain total magnetic anomaly contours. Upward continuation is carried out to separate regional and residual magnetic anomalies at an altitude of 200 m. The results showed that there were indications of iron ore in the area with magnetic anomaly data ranging from -147.6 nT to 594.8 nT. The results showed that the rocks identified as iron ore were sand which were mostly found in the eastern and western parts of the study area with a susceptibility value of 0.01634885 SI up to 0.02674884 SI at a depth of 153 m to 449 m..
Identifikasi Sebaran Bijih Besi Menggunakan Metode Geomagnet di Desa Pringgabaya Utara, Kabupaten Lombok Timur Ulfa Eka Safitri; Teguh Ardianto; Lily Maysari Anggraini
Kappa Journal Vol 4 No 1 (2020): Juni
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v4i1.2086

Abstract

Research has been conducted which aims to determine the distribution of rocks containing iron ore using the geomagnetic method in the North Pringgabaya Village, East Lombok Regency, NTB. Retrieval of magnetic data was carried out with the Proton Precision Magnetometer (PPM) GEM-19T v7.0 in an area of 4 km2 with a measurement point spacing of 100 m and spacing between trajectories of 200 m. From the measurement data, daily and IGRF corrections were performed to obtain total magnetic anomaly contours. Upward continuation is carried out to separate regional and residual magnetic anomalies at an altitude of 200 m. The results showed that there were indications of iron ore in the area with magnetic anomaly data ranging from -147.6 nT to 594.8 nT. The results showed that the rocks identified as iron ore were sand which were mostly found in the eastern and western parts of the study area with a susceptibility value of 0.01634885 SI up to 0.02674884 SI at a depth of 153 m to 449 m.DOI: 10.29408/kpj.v4i1.2086.
Estimasi Potensi Debit Air Akuifer Menggunakan Metode Geolistrik Tahanan Jenis Muhammad Zuhdi; Syamsuddin Syamsuddin; Bakti Sukrisna; Teguh Ardianto; Agus Wahid Habiburrohman
Kappa Journal Vol 6 No 2 (2022): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v6i2.6145

Abstract

The geoelectric method is a very effective method for subsurface aquifers (water reserves). This method is based on the injection of an electric current from the surface to the earth's body with a certain electrode configuration. The geoelectric method used in this study uses a Schlumberger electrode configuration. Surveys with this method are proven to be able to map the height of the water table at a point in the survey area. In this study, the geoelectric method has been proven to be able to map the potential for water flow discharge in aquifers. From the results of the calculation of the potential for water discharge using the Darcy equation, it is found that the discharge value is around 22.11 liters per second.