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All Journal SOSCIED Sciening : Science Learning Journal Jurnal Penelitian Sains dan Pendidikan (JPSP) Charm Sains : Jurnal Pendidikan Fisika Jurnal FisTa : Fisika dan Terapannya
Theresje Mandang
Universitas Negeri Manado
Astronomy Biochemistry, Genetics & Molecular Biology Education Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : Jurnal FisTa : Fisika dan Terapannya

 1 
STUDI KARAKTERISTIK BATUAN MANIFESTASI PANAS BUMI DI SEKITAR GUNUNG TAMPUSU Oliver Pongoh; Donny Royke Wenas; Theresje Mandang
Jurnal FisTa : Fisika dan Terapannya Vol 1 No 2 (2020): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v1i2.93

Abstract

North Sulawesi is one of the provinces in Indonesia which has many active volcanoes. Mount Tampusu is an area that has geothermal prospects characterized by geothermal manifestations on the surface, namely hot springs that can contribute to or influence the surrounding rocks making altered rocks within the scope of hot spring manifestations. This study aims to identify the mineral composition and type of alteration rock in the geothermal manifestation area around Mount Tampusu at the study site using SEM-EDX and FTIR methods to determine hydrothermal minerals present in these rocks. The results showed that the mineral composition of altered rock mineral in the geothermal manifestation in Tampusu Village, Remboken District had almost the same content between the rocks in the eyes of the hot springs (where the water came out) and those that were a few meters away from the manifestation, namely Al (Aluminum), Si ( Silica), S (Suklur). With the difference in elemental content, sample 2 has the addition of Al (Aluminum), Si (Silica), MoL (Molybdenum), K (Potassium), Fe (Ferum). And the types of altered rock minerals around the hot spring manifestations in rock samples 1 and 2 are Quartz, Montmonillonitre, Albite, Kaolinite, Gibbsite and Paligorskile.
PENENTUAN TIPE FLUIDA DAN GUGUS FUNGSI MANIFESTASI PANAS BUMI KAWAH TUA GUNUNG API SOPUTAN Ronaldo J. Toar; Donny Royke Wenas; Theresje Mandang
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 1 (2021): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v2i1.106

Abstract

Indonesia is a country that has the largest geothermal resources in the world which is directly proportional to the number of volcanoes. Indonesia is an archipelagic country located at three junction of active mountain plates, namely the Eurasia, Indo-Australia and Pacific plates. Where Indonesia is also located in an active ring of fire that is associated with active volcanoes in Indonesia. North Sulawesi is one of the provinces in Indonesia which has several active volcanoes, one of which is the object of research is Mount Soputan. This volcano is located in South Minahasa and Southeast Minahasa Districts, North Sulawesi Province. The method used in this research is descriptive method and analysis of geothermal fluid chemical data. Analysis of the ion content in the fluid using a SpectroDirect Photometer. As well as functional group analysis using the FTIR Spectroscopy method (Fourier Transform Infra Red), this method is an infrared spectroscopy method equipped with Fourier transform for its spectrum analysis. Geothermal manifestation fluid in the Old Crater of Mount Soputan Volcano is a bicarbonate type of fluid with an HCO3 content of 479 ppm. The high HCO3 content is thought to be associated with the increase in geothermal fluids containing gas, especially CO2, which then experiences condensation in shallow aquifers.
Identifikasi Mekanisme Kedalaman Gempa Vulkanik Gunungapi Soputan Menggunakan Data Seismik Vulkanik Dalam Periode April-Mei 2014 Sriwahyu Tiyow; Patricia Silangen; Theresje Mandang
Jurnal FisTa : Fisika dan Terapannya Vol 3 No 1 (2022): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v3i1.171

Abstract

Indonesian An archipelago country that has many volcanoes, namely 147 volcanoes 127 of which are active volcanoes. Spread in several regions of Indonesian following the boundaries of the active plate starting from the islands of Sumatra, Java, Bali, West Nusa Tenggara, Flores, Sulawesi and Maluku. Soputan volcano is one of 127 active volcanoes in Indonesia, is a Strato volcano. As an active tecto-volcanic country, with many volcanoes we try to minimize and prevent the dangers posed by volcanic eruptions. Based on these thoughts, to date in Indonesian various methods of volcanic natural disasters have been carried out, including earthquakes (seismic). Volcanic earthquakes usually occur in the area around volcanoes and their magnitudes are generally very small, averaging less than 5 on the Richter Scale. The depth of the volcanic earthquake ranges from 0-40 km. Based on the hypocentrum distribution of the depth of the epicenter, it shows that the earthquake point that occurred before the eruption was at a depth of 0 km - 2 km at sea level, while the point of the earthquake that occurred during the eruption was at a depth of 0 km - 2 km below sea level, the point of the earthquake that occurred after the eruption it is at a depth of 0 km - 3 km below sea level. The mechanism for the eruption of Mount Soputan Volcano is a visual change in the vegetation around the crater, the plants turn yellow and can die, as soon as the thin crater turns gray.
Co-Authors Aswin Hermanus Mondolang Cosmas Poluakan Djeli Alvi Tulandi Dolok Saribu, Chicha R. A Donny Royke Wenas Fintika Kurnia Sari Gratsia Manuho Heindrich Taunaumang Helena Mogi Jeane V. Tumangkeng Jimmy Lolowang Jimmy Lolowang Kenny S. Lahope Kowaas, Megumi Hana Lahope, Kenny S. Lesti Bambulu Lolowang, Jimmy Mamusung, Risma Marianus Marianus Mukuan, Grestia Elisa Amelia Nicky Kurnia Tumalun Oliver Pongoh Patricia Mardiana Silangen Rampengan, Alfrie M. Ronaldo J. Toar Santria Umar Sirendeng, Siska Sriwahyu Tiyow Tineke Makahinda Treesje K. Londa Uada, Putri Angel Vebrina Bunga Langngan