Localization of the source of large silicic ignimbrites through magnetic techniques : applications in Turkey

Research using paleomagnetic and rock-magnetic techniques has identified the source areas of large silicic ignimbrites in Turkey, including two poorly studied regions. In Cappadocia, stable thermoremanent magnetization (TRM) revealed a primary Ti-magnetite origin, while oblique magnetic fabrics were linked to local disturbances from pumices and lithic clasts. Magnetic fabric analysis confirmed the reliability of flow directions, with MD Ti-magnetite as the main carrier. In the Afyon-Eskişehir region, field data and magnetic fabric results pinpointed two source areas: the Kırka caldera for the Incik and Sabuncu ignimbrites (VEI 7 and 6, respectively) and near Bayat for the Seydiler ignimbrite (VEI 7). The study demonstrates that magnetic techniques can accurately locate eruption sources and estimate volcanic magnitudes, offering new insights into Turkey's geological history.

Agro, A. Localization of the source of large silicic ignimbrites through magnetic techniques : applications in Turkey. https://doi.org/10.70675/c0af3f6aza6f8z4071z8d38z684c7153706f