MagNetZ With Geoff Lerner (2022/10/19) - Using paleomagnetism to evaluate volcanic hazards
Channel: MagNetZ
Date: 2022-10-19

Using paleomagnetism to evaluate volcanic hazards

The video is also available for download at: https://earthref.org/ERDA/xxxx/
and can be referenced with the doi: 10.7288/V4/ERDA/xxxx

Title: Using paleomagnetism to evaluate volcanic hazards
Author: Geoff Lerner from the Universidad Nacional Autónoma de México, Mexico

Volcanic rocks are frequently used in paleomagnetic studies due to their typical composition involving significant magnetic mineralogy. Conversely, paleomagnetic data can be used to study the volcanoes that produced these rocks and deposits. Paleomagnetic studies involving thermal demagnetization and many volcanic hazards frequently share a common characteristic: high temperatures. This means that paleomagnetism can be a useful tool for evaluating volcanic hazards. In this talk I will describe paleomagnetic studies evaluating two high-temperature volcanic hazards: pyroclastic density currents and lava flows. These volcanic processes present significant hazards to human life and the built environment. The paleomagnetic methods demonstrated here can help us better understand their emplacement processes and the threat they pose, which is valuable for future hazard management and mitigation.  

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00:00 - Intro
00:37 - Presentation
29:22 - Questions
38:58 - Announcements