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All Journal JOURNAL ONLINE OF PHYSICS Journal of Applied Geology Petro : Jurnal Ilmiah Teknik Perminyakan
Andrea Hasbullah
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Physics

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PETROGRAPHY OF PYROCLASTIC ROCK MOUNT MASURAI JAMBI PROVINCE Kirana, Febiyora Chandra; Nuriil Tadersi, Risnaliyah; Hasbullah, Andrea; Siregar, Anggi Deliana; Ritonga, D.M Magdalena; Utama, Hari Wiki; Misnawati, Misnawati
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 1 (2024): JOP (Journal Online of Physics) Vol 10 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i1.38349

Abstract

The magmatic arc of Sumatra Island, which is indicated by the presence of the Barisan Mountains zone on the west side of Sumatra Island with a general direction northwest - southeast, makes Mount Masurai, which is administratively in Merangin Regency, Jambi Province, become one of the volcanoes on Sumatra Island. Geographically, the peak of Mount Masurai is located at coordinates 101o 51' 28.60" E and 2o 30' 09.19" S with an elevation 2915 masl. The eruption period of Mount Masurai is estimated to have occurred twice during the eruption period. Based on the lack of information about volcanoes, this research was conducted to determine the characteristic and distribution of pyroclastics from Mount Masurai. In the area around Mount Masurai, remnants of volcanic eruptions were found, in the form of pyroclastic flows and falls. From data collection based on the results of geological mapping and petrographic analysis, pyroclastic rocks were found in the area around Mount Masurai with lithology in the form of Andesite Breccia, Laharic Breccia Pumice Breccia, Lapilli stone and Tuff. This is reinforced by the results of petrographic analysis of rock samples which are dominated by the presence of a glass
ANALISIS DATA GAYA BERAT UNTUK IDENTIFIKASI ZONA POTENSI LONGSOR DI GUNUNG KULU, LHOONG, ACEH BESAR Nuriil Tadersi, Risnaliyah; Setia Nugraha, Gartika; Chandra Kirana, Febiyora; Hasbullah, Andrea; Tanjung, Maulina; Wully Agustine, Diah
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 3 (2025): JOP (Journal Online of Physics) Vol 10 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i3.46401

Abstract

Kawasan Gunung Kulu, Lhoong, Aceh Besar, sudah sering terjadi sering terjadi longsor baik itu longsoran tanah maupun jatuhan batu. Penelitian ini bertujuan untuk menganalisis data gaya berat di wilayah Gunung Kulu, Lhoong, Aceh Besar untuk mengidentifikasi sebaran anomali gaya berat yang berkaitan dengan potensi kerentanan longsor. Metode gaya berat digunakan untuk mendeteksi variasi densitas batuan bawah permukaan melalui pengukuran gravitasi observasi (gobs), perhitungan Free Air Anomaly (FAA), Simple Bouguer Anomaly (SBA), Anomali Bouger Lengkap (ABL). Nilai ABL yang diperoleh berkisar antara 71,5 mGal hingga 82 mGal, dengan nilai tinggi terdapat pada bagian barat hingga barat daya wilayah studi yang menunjukkan adanya batuan berdensitas tinggi seperti basalt , sedangkan nilai rendah pada bagian timur menunjukkan adanya zona berdensitas rendah yang berpotensi menjadi jalur longsor. Penelitian ini memiliki keterbatasan pada distribusi titik pengukuran gaya berat di lapangan, di mana terdapat area kosong pada bagian tengah wilayah studi akibat kondisi medan yang sulit diakses dan keterbatasan waktu survei. Hasil penelitian ini memberikan informasi awal kondisi bawah permukaan sebagai upaya mitigasi bencana longsor di wilayah penelitian serta menjadi referensi untuk studi lanjutan di bidang geologi teknik dan geofisika lingkungan.
Co-Authors Adhitya, Bagus Benny Abraham Bungasalu Dinar Hananto Kurniawan Donatus Hendra Amijaya Hari Wiki Utama Herdiana Prasetyaningrum HEVIYANTI, LINDIA Jarot Setyowiyoto Kirana, Febiyora Chandra Misnawati Misnawati Mulyadi Mulyadi Nuriil Tadersi, Risnaliyah Pandiangan, Erna Ritonga, Magdalena Setia Nugraha, Gartika Siregar, Anggi Deliana TANJUNG, MAULINA Wully Agustine, Diah