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All Journal Jurnal Penelitian Fisika dan Terapannya (JUPITER) Progressive Physics Journal
Nur Aziz, Khafidh
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Astronomy Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Physics

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Analisis Konsep Fisika Osilasi Terkopel pada Sistem Pegas Bermassa Fatihah, Nurul; Nurul Khomsati , Nikma; Sahda Widyadhari , Talitha; Nur Aziz, Khafidh
Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol. 5 No. 1 (2023): Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jupiter.v5i1.11777

Abstract

Penelitian ini bertujuan untuk menentukan frekuensi harmonik pada sistem pegas terkopel serta mengetahui pengaruh variasi massa terhadap frekuensi harmonik pada sistem pegas terkopel yang disusun seri dan paralel. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif eksperimental. Data yang diambil untuk dianalisis berdasarkan percobaan secara langsung di Laboratorium Fisika Dasar Universitas Negeri Yogyakarta. Hasil penelitian menunjukkan Frekuensi harmonik pada rangkaian seri berturut-turut adalah 1,29 Hz; 1,25 Hz; 1,05 Hz; 1,04 Hz; 0,94 Hz; 0,86 Hz; 0,81 Hz sedangkan pada rangkaian paralel 2,71 Hz; 2,50 Hz; 2,23 Hz; 1,92 Hz; 1,84 Hz; 1,75 Hz; 1,61 Hz. Massa mempengaruhi nilai frekuensi yang dihasilkan. Semakin besar massa, maka frekuensi yang dihasilkan semakin kecil.
Analisis Struktur Bawah Permukaan Daerah Panas Bumi Pacitan Berdasarkan Data Gravitasi GGMPlus Widiyansari, Roma; Fatimah, Siti; Risti, Fidel; Hikmah, Nur; Darmawan, Denny; Nur Aziz, Khafidh; Fitrianingtyas, Rahmawati
Progressive Physics Journal Vol. 6 No. 2 (2025): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/3rdp3n60

Abstract

This study aims to identify the subsurface structure of the geothermal system in the Pacitan area, East Java, using gravity methods based on GGMPlus data. The analysis procedures include terrain correction to obtain the Complete Bouguer Anomaly (CBA), separation of regional and local anomalies through upward continuation, as well as two-dimensional (2D) modeling and Second Vertical Derivative (SVD) analysis to identify fault structure. The CBA values in the study area range from 107 to 115.5 mGal, where high anomalies correlate with volcanic breccia rocks and highlands, while low anomalies indicate the presence of sandstone in lowland areas. Geothermal manifestations in the form of hot springs exhibit gravity anomalies of approximately 110.5–111.5 mGal and are situated in the north of the fault in a northwest–southeast direction. The 2D modeling results reveal the presence of reservoir rocks consisting of sandstone and clay with densities ranging from 1.79 to 2.20 g/cm³, and lava rocks with densities of 2.80–2.90 g/cm³ acting as cap rocks. SVD analysis indicates the existence of a normal fault directly associated with geothermal fluid pathways. This study demonstrates that the GGMPlus gravity method is effective for preliminary exploration of geothermal systems in potential areas such as Pacitan.
Co-Authors Denny Darmawan Fatihah, Nurul Fitrianingtyas, Rahmawati Nur Hikmah Nurul Khomsati , Nikma Risti, Fidel Sahda Widyadhari , Talitha Siti Fatimah Widiyansari, Roma