The National Research and Innovation Agency (BRIN) has revealed the\ndynamics of the hydrothermal and magmatic-gas systems beneath Mount\nTangkuban Parahu, which are linked to phreatic eruption activities. This\nwas presented by Syahreza Saidina Angkasa, a Junior Expert Researcher at\nBRIN\u2019s Geological Resource Research Centre, during the DIGDAYA #25\nStudium Generale at Padjadjaran University (UNPAD) held on Wednesday\n(26\/8).<\/p>\n
Syahreza provided an in-depth analysis of the characteristics of the\nunderground hydrothermal and magmatic-gas systems at Mount Tangkuban\nParahu. The joint research between BRIN, UNPAD, and Akita University\nobserved the composition of tephra layers and changes in mineral types\nresulting from volcanic eruptions.<\/p>\n
\u201cPhreatic eruptions (hot steam) at Tangkuban Parahu disperse material\nup to a 1.5-kilometre radius from the crater. This rock material\nundergoes colour changes to grey, rust red, or even transforms into fine\nclay, with deposit temperatures reaching up to 400 degrees Celsius,\u201d\nsaid Syahreza, as quoted on Saturday (5\/9\/2026).<\/p>\n
Furthermore, Syahreza explained that the research successfully\nidentified various important minerals, including quartz, cristobalite,\nopal, and alunite, as well as the first discovery of the mineral\njarosite in the rocks of Mount Tangkuban Parahu. Based on sulphur\ncontent examinations, it was found that the temperature of the hot water\nunderground ranges between 200 and 240 degrees Celsius, driven by the\ninteraction between the hydrothermal system and gases originating from\nwithin the magma.<\/p>\n
\u201cThere are three main possible causes for eruptions at Tangkuban\nParahu: pure steam eruptions, eruptions caused by magmatic gas pressure\nmixing with groundwater, and eruptions due to gas accumulation trapped\nbeneath the lava dome. Understanding these patterns is vital for\npredicting and reducing the risks of volcanic eruptions in the future,\u201d\nhe explained.<\/p>\n
The Head of BRIN\u2019s Geological Resource Research Centre, Iwan\nSetiawan, stated that BRIN offers various facilities and programmes open\nto anyone wishing to study and develop earth sciences. \u201cWe have many\nschemes available for all students here. I invite all students and\nacademics to join BRIN\u2019s internship programmes. This research\npartnership is expected to drive progress in earth sciences that impacts\nsustainable development,\u201d he clarified.<\/p>\n
The Dean of the Faculty of Geological Engineering at Padjadjaran\nUniversity, Boy Yoseph Cahya Sunan Sakti Syah Alam, also expressed his\nsatisfaction with this collaboration. He noted that Indonesia\u2019s natural\ncharacter is incredibly rich and dynamic, and studying it can provide\nnew perspectives on understanding Earth\u2019s transformative processes.<\/p>\n
\u201cGeological understanding never truly stops at a single point. New\nchallenges, technologies, and analytical methods can provide new\ninterpretations of the processes we previously observed. The cooperation\nbetween UNPAD and BRIN is an important step in advancing earth science\nresearch while mentoring young researchers,\u201d said Boy.<\/p>", "url": "https:\/\/jawawa.id\/newsitem\/treasure-discovered-beneath-mount-tangkuban-parahu-1788609268", "image": "" }, "sponsor": "Okusi Associates", "sponsor_url": "https:\/\/okusiassociates.com" }