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All Journal BERKALA FISIKA Bulletin of Scientific Contribution : Geology Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Riset dan Kajian Pendidikan Fisika IJOG : Indonesian Journal on Geoscience JFA (Jurnal Fisika dan Aplikasinya) Jurnal Geosaintek Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Jurnal Fisika FLUX Journal of Geoscience, Engineering, Environment, and Technology INDONESIAN JOURNAL OF APPLIED PHYSICS Communications in Science and Technology Risalah Fisika Jurnal Geofisika Indonesian Journal on Geoscience Indonesian Journal on Geoscience Aceh International Journal of Science and Technology Jurnal Geosaintek
Sukmaji Anom Raharjo
Department Of Physics, Jenderal Soedirman University
Agriculture, Biological Sciences & Forestry Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Other

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Journal : INDONESIAN JOURNAL OF APPLIED PHYSICS

 1 
Distribution of Iron Sand in The Widarapayung Coast Area at Regency of Cilacap Based on Magnetic Anomaly Data Sehah Allasimy; Sukmaji Anom Raharjo; Muhammad Andi Kurniawan
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 02 (2016): IJAP Volume 06 Issue 02 Year 2016
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i02.1896

Abstract

Interpretation on the magnetic anomalies data has been done in the Widarapayung coast area, District of Binangun, Regency of Cilacap to identify distribution of iron sand. The acquisition of magnetic intensity data in this area has been done in December 2015 and May 2016 using Proton Precession Magnetometer (PPM) with type of GSM-19T. The research area extends on the geographic positions of 109.2501°BT – 109.2702°E and 7.6781°LS – 7.6986°S. Magnetic anomalies data modeling is done with using Mag2DC for Windows software so obtained some subsurface anomalous objects model. The anomaly object model having a value of magnetic susceptibility of 0.0093cgs unit is interpreted as iron sand interspersed with silt, clay, sand, and gravel from the alluvium formation. This formation is lain at a depth of 1.709 to 11.966m and a length of 1576.7m. The iron sand contained in this formation is estimated prospects for exploitation. Based on the interpretation results, alluvium formation is also found at a depth of 1.140 to 30.769m, which expected be composed of silt, clay, sand, and gravel with a magnetic susceptibility value of 0.0051cgs unit. The content of iron sand in this 2nd alluvium formation is expected to be relatively small.
Two Dimensional Modeling of Basaltic Rocks Intrusion Based on The Local Magnetic Anomalies Data in Jatilawang District Banyumas Regency Sehah Sehah; Sukmaji Anom Raharjo; Urip Nurwijayanto Prabowo
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 10, No 2 (2020): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v10i2.41885

Abstract

Two dimensional modeling to basaltic rocks intrusion in Pekuncen and Karanglewas Villages Jatilawang District, Banyumas Regency, Central Java based on the local magnetic anomalies data has been carried out in March – June 2020. The amount of magnetic data obtained from the acquisition in the field was 239 data stretching in position of 109.107222° – 109.134944°E and 7.561361° – 7.577306°S, with the local magnetic anomalies values ranging of -2,961.11 – 1,516.31 nT. To model anomalous sources in the subsurface in two dimensions, then the local magnetic anomalies data is transformed into pseudogravity anomalies data, so that anomalous value can be obtained as -27.815 – 41.087 mGal. Based on the pseudogravity anomalous map, the basaltic rock intrusion is interpreted to be located in the eastern part of the research area, so modeling of anomalous sources is conducted in this area. The results of 2D-modeling to local magnetic anomalies data indicate the presence of anomalous object interpreted as basaltic rock intrusion with magnetic susceptibility contrast value of 0.0223 cgs, located at depth of 52.61 – 505.97 m and a lateral length of 1777.94 m. This rock intrudes sediment rock from the Halang Formation and is connected to other basaltic rock near the surface with magnetic susceptibility contrast value of 0.0165 cgs, located at depth of 1.94 – 80.90 m and lateral length of 751.83 m. The results of lithological interpretation are in accordance with the geological information of the research area.
Co-Authors Abdullah Nur Aziz Abdullah Nur Aziz Abdullah Nur Aziz Arya Dwi Candra Attabik, Laskarul Wildan Aziz, Abdullah Nur Azmi Risyad Candra, Adi Chandra Adi Prasetyo, Chandra Adi Destiani, Fajar Dwi Setiawan Sutanto Fajar Destiani Ferdiyan, Akmal Ikhwana, Aina Zahra Laskarul Wildan Attabik Muhammad Andi Kurniawan Muhammad Sehah Muhammad Sehah Muhammad Sehah Prabowo*, Urip Nurwijayanto Prabowo, Urip Nurwijayanto Priyadi, Pujo Rachmad Setijadi Rachmad Setijadi, Rachmad S Sehah Sa'adah, Fajar Nur Sa'adah, Nailis Sachrul Iswahyudi Sehah Allasimy Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah Sehah, Muhammad Sehah, S Sehah, Sehah Sehah, Sehah Sutanto, Dwi Setiawan Urip Nurwijayanto Prabowo Urip Nurwijayanto Prabowo Urip Nurwijayanto Prabowo, Urip Nurwijayanto Zaroh Irayani