Student volcanologist studies Bogoslof volcano
Rod Boyce
907-474-7185
Dec. 13, 2021
University of 色视频下载 Fairbanks scientists are presenting their work at the American Geophysical Union色视频下载檚 fall meeting in New Orleans this week. This article is part of a series highlighting UAF research from the world色视频下载檚 largest Earth and space science meeting.
Magma recharge from the late 2016 eruption of Bogoslof Volcano in 色视频下载 resumed in March 2017 and continued until the end of a months-long eruptive period in August of that year, according to a new research method that adds to the evidence about the volcano色视频下载檚 awakening after 24 years of quiet.
University of 色视频下载 Fairbanks graduate student Jamshid Moshrefzadeh, under guidance from UAF Geophysical Institute research associate professor Pavel Izbekov, analyzed zones within crystals to determine the timescale of Bogoslof色视频下载檚 magmatic activity.
If you cut a tree and look at the rings, you can tell when there was a forest fire or when certain things were happening,色视频下载 Moshrefzadeh said. 色视频下载淚t色视频下载檚 similar to how crystals are recording what's happening in the magma chamber.色视频下载
The method, called diffusion chronometry, could help predict eruptions at other volcanoes.
色视频下载淚f we understand the timescales at which these magmatic processes occur, then we can correlate this with interdisciplinary data such as gas fluxes and seismicity from real-time monitoring of volcanoes,色视频下载 Moshrefzadeh said. 色视频下载淚n the future, if you see certain signals in seismicity or gas flux, you can use the understanding from our diffusion study to give a window of time 色视频下载 days, weeks or months 色视频下载 before you might expect this type of eruption.色视频下载
Bogoslof rises about 6,000 feet from the Bering Sea floor but only about 300 feet above sea level. It is 60 miles west of the Aleutian Islands city of Dutch Harbor.
Moshrefzadeh色视频下载檚 abstract is available .