2-2-2-2-2-2-2-2-2-2-2-2-2 From: "Andrews, Benjamin" <AndrewsB@xxxxxx> Dear Colleagues, On behalf of my fellow conveners, I invite you to submit an abstract to AGU Fall Meeting Session V005: Are we recording? Challenges, comparisons and advancements in measuring and interpreting magma decompression rates (confex.com) <https://urldefense.com/v3/__https://agu.confex.com/agu/fm23/prelim.cgi/Session/191241__;!!IKRxdwAv5BmarQ!cYuemIVQpogrXYJf-QIKaoaiV84k78mwqtivk8MLThfRoxAOi5t3XwmkRFBGWxb2lLOXpgYeZYgCkOUKs88e$> The speed that magmas rise to the surface and decompress affects many processes within the conduit, including degassing dynamics, crystallization, and fragmentation. Decompression rate exerts a first order control on eruption style, with fast rates more likely to result in explosive eruption. For those reasons and because decompression rates provide historical perspective on the ascent time from storage to eruption, understanding these rates is important for volcanic hazard forecasting and mitigation. This session will bring together different techniques for determining decompression rate, including but not limited to melt embayments, volatile diffusion gradients, microlite and bubble size distributions, mineral reaction rims, seismicity and numerical modelling. In particular, we seek studies that examine the sensitivities of speedometers, describe how cooling (or heating) during ascent may be recorded and complicate speedometry, and discuss how rates might vary from the conduit base to the vent or from the start to end of an eruption. The deadline for abstract submission is 2 August. Additional information about the AGU Fall Meeting can be found at AGU Fall Meeting 2023 <https://urldefense.com/v3/__https://www.agu.org/Fall-Meeting__;!!IKRxdwAv5BmarQ!cYuemIVQpogrXYJf-QIKaoaiV84k78mwqtivk8MLThfRoxAOi5t3XwmkRFBGWxb2lLOXpgYeZYgCkCf4Eqwe$> Cheers, Ben Benjamin Andrews, Smithsonian Institution Madison Myers, Montana State University Laura Waters, New Mexico Tech Behnaz Hosseini, Montana State University 2-2-2-2-2-2-2-2-2-2-2-2-2 ------------------------------
