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All Journal Bulletin of Scientific Contribution : Geology Jurnal Serambi Abdimas
Sehah, Muhammad
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Environmental Science

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Interpretasi Lapisan Pasir Besi Menggunakan Metode Resistivitas Konfigurasi Dipole-Dipole di Kawasan Desa Pagubugan Kecamatan Binangun Kabupaten Cilacap Lestari, Tri Verawati Anggun; Sehah, Muhammad
Bulletin of Scientific Contribution Vol 18, No 1 (2020): Bulletin of Scientific Contribution : GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc.v18i1.26166

Abstract

Pasir besi merupakan salah satu sumberdaya alam yang terdapat di wilayah Indonesia, khususnya di kawasan pesisir Pulau Jawa. Pasir besi merupakan bahan baku yang memiliki peran penting bagi dunia industri, seperti industri baja, transportasi, pertahanan, properti, dan peralatan lainnya. Salah satu kawasan yang prospek pasir besi adalah Pesisir Desa Pagubugan, Kecamatan Binangun, Kabupaten Cilacap, Jawa Tengah. Survei Geofisika dengan metode geolistrik resistivitas di Pesisir Desa Pagubugan telah dilakukan untuk mengetahui sebaran dan kedalaman lapisan pasir besi, pada bulan Januari – Juni 2019. Konfigurasi elektroda yang digunakan dalam penelitian adalah dipole-dipole. Akuisisi data dilakukan pada tiga lintasan dengan panjang masing-masing lintasan sebesar 200 meter. Hasil pengolahan dan interpretasi data resistivitas menggunakan software Res2dinv 3.54 menunjukan bahwa batuan bawah permukaan di daerah penelitian terdiri atas empat lapisan; yaitu pasir, lanau, kerikil, dan kerakal yang berselingan dengan butiran bijih besi dengan nilai resistivitas berkisar >28,3 – >43,4 Ωm, endapan pasir besi dengan nilai resistivitas berkisar 20,1 – 43,4 Ωm, lempung pasiran dengan nilai resistivitas berkisar 10,1 – 26,0 Ωm, serta pasir lempungan dengan nilai resistivitas berkisar 5,10 –15,5 Ωm. Secara umum lapisan pasir besi tersebar merata di seluruh lintasan, dimana pasir besi diperkirakan berada pada lapisan kedua dengan kedalaman berkisar 8,5 – 13,5 meter
KARAKTERISTIK AKUIFER DI KAWASAN PROSPEK BIJIH BESI PESISIR DESA KARANGTAWANG KECAMATAN NUSAWUNGU KABUPATEN CILACAP BERDASARKAN DATA RESISTIVITAS-2D Sehah, Muhammad; Raharjo, Sukmahaji Anom; Vickramdani, Muhammad
Bulletin of Scientific Contribution Vol 16, No 3 (2018): Bulletin of Scientific Contribution GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2695.333 KB) | DOI: 10.24198/bsc.v16i3.19567

Abstract

The research to investigate the characteristic of aquifer using the 2D-geoelectrical resistivity method has been done in the iron ore prospect area of Nusawungu West Coastal, Cilacap Regency. The background of the research is the abundant potential of iron sand in this village which prospects are exploited. The 2D-resistivity data acquisition was carried out in March – April 2018 in four locations determined based on the prospect zone of iron ore from the local magnetic anomaly map of the research area. Based on the results of modeling and interpreting resistivity data, the potential of iron ore in the research area is quite large. In each trajectory of measurement, sand was found which was interpreted to contain iron ore with resistivity values ranging from 21.7 – 56.7 Ωm. The sand containing iron ore is also the main medium of the shallow groundwater aquifer layer in the research area. The characteristics of aquifers in the research area are quite good where the condition of the residents' well water is abundant, does not taste salty, has never experienced drought even during the dry season, but is thought to contain iron (Fe). If the exploitation of iron sand is carried out on a large scale, it will result in reduced sand and other rocks making up aquifers. As a result the function of aquifers in storing and flowing groundwater in the research area has decreased.
Peningkatan Kemampuan Literasi dan Numerasi Siswa SD Negeri 2 Sambirata Kecamatan Cilongok Kabupaten Banyumas Melalui Kegiatan Kampus Mengajar Sehah, Muhammad
Jurnal Serambi Abdimas Vol 5 No 1 (2024): Jurnal Serambi Abdimas
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/sa.v5i1.11792

Abstract

SD Negeri 2 Sambirata Cilongok Kabupaten Banyumas merupakan salah satu sekolah dasar yang menjadi target kegiatan Kampus Mengajar angkatan ke-6 tahun 2023. Tujuan kegiatan adalah untuk membekali mahasiswa dengan beragam keahlian dan keterampilan melalui kemitraan dengan para guru untuk berinovasi dalam pembelajaran, mengembangkan strategi, dan menerapkan model pembelajaran yang aktif, kreatif, dan menyenangkan. Pada kegiatan ini, mahasiswa berhasil melakukan kolaborasi dengan para guru dalam upaya membantu meningkatkan kemampuan literasi dan numerasi siswa serta penguatan teknologi pembelajaran di sekolah sasaran. Hal ini terlihat dari program kerja yang telah direalisasikan oleh mahasiswa di SD Negeri 2 Sambirata. Dalam kegiatan Kampus Mengajar ini, mahasiswa juga berhasil membantu siswa yang masih mengalami kesulitan membaca, menulis, dan menghitung. Salah satu indikator keberhasilan kegiatan Kampus Mengajar angkatan ke-6 di SD Negeri 2 Sambirata ditandai dengan meningkatnya nilai Asesmen Kompetensi Minimum dari pre-test ke post-test sebesar 47% untuk uji literasi dan 52% untuk uji numerasi.
Pengenalan Konversi Energi Terbarukan sebagai Penguatan Kualitas Pembelajaran Rekayasa dan Teknologi di MTs Sains Karimiyya Kebasen Kabupaten Banyumas Sehah, Muhammad; Hartono, Hartono; Abdulatif, Raden Farzand; Sugito, Sugito
Jurnal Serambi Abdimas Vol 6 No 02 (2025): Jurnal Serambi Abdimas
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/sa.v6i02.17958

Abstract

Education in Indonesia continues to face significant challenges in achieving equitable access and improving quality, thereby requiring the strengthening of teacher competencies, the development of a relevant curriculum, and the provision of adequate learning facilities. Through the implementation of the Independent Learning (Merdeka Belajar) Curriculum and the Pancasila Student Profile Strengthening Project (Proyek Penguatan Profil Pelajar Pancasila, P5), the government aims to promote a more flexible, contextual, and character-oriented learning approach that fosters 21st-century skills. At MTs Sains Karimiyya Kebasen, Banyumas Regency, the implementation of the engineering and technology theme within the P5 program aligns with the school’s vision as a science-based Islamic institution. The research-based community service activity focusing on renewable energy conversion serves as a practical step toward realizing this vision, while also fostering creativity, innovation, and environmental awareness among students. The renewable energy conversion outreach activity at MTs Sains Karimiyya Kebasen proved effective in enhancing students’ understanding of energy conversion principles through the application of solar power kits and simple electrical generators as learning aids. A comparison of pre-test and post-test results demonstrated a significant improvement across all assessed aspects, indicating that practice- and demonstration-based learning effectively increased student engagement, enthusiasm, and conceptual understanding. Evaluation results based on questionnaires further revealed highly positive responses toward the use of renewable energy conversion learning aids. The strong enthusiasm among participants also suggests that the use of such teaching tools effectively stimulates students’ curiosity and interest, making teaching-aid-based learning methods highly feasible for further development to improve the quality of science education.
Co-Authors Abdulatif, Raden Farzand Hartono Hartono Lestari, Tri Verawati Anggun Raharjo, Sukmahaji Anom Sugito - Vickramdani, Muhammad