Luke Marsden

Luke Marsden

Profile

I joined the University of Leeds as a PhD student in October 2016, where I work with Prof. Jürgen Neuberg and Dr. Mark Thomas. I am a volcano seismologist and numerical modeller interested in the relationship between deformation and seismicity at silicic volcanoes. Tilt (the change in inclination of the volcanic flanks) and seismicity have both been independently used to forecast eruptions of silicic volcanoes. As magma ascends through a volcanic conduit, shear stress is exerted on the conduit walls, proportional to the ascent rate, pulling up the surrounding edifice. At a critical shear stress, magma fails in a brittle manner, triggering low-frequency seismicity. I investigate the relationship between seismicity and deformation by combining flow and deformation modelling, with the ultimate goal of creating a combined forecasting tool to be implemented in volcano observatories. My work so far has mainly focused on Tungurahua volcano, collaborating with staff at the IGEPN in Ecuador.

Funding: Leeds-York NERC Doctoral Training Partnership (DTP) 2016

I worked in seismic data processing for CGG from July 2013 to September 2016.

I have a 1st class Integrated Master's in Geoscience (Geophysical Route) from Durham University (2009-2013).

Masters research project title: Quantifying the volume flux of multiphase magma: implications for brittle failure of magma

Supervisor: Dr. Ed Llewellin


Conference Participation:

Oral Presentations:

Marsden, L., Neuberg, J., Thomas, M., Mothes, P., Ruiz, M., Combined magma flow and deformation modelling to investigate the contribution of shear stress, IASPEI/IAVCEI Inter-Association Commission on “Volcano Seismology & Acoustics”, 2018 Sept 29-Oct 4, La Réunion.

Marsden, L., Neuberg, J., Thomas, M., Causes and relievers of stress: Coupled flow and deformation modelling to explain observed deformation at silicic volcanoes, VMSG; 2018 Jan 3-5; Leeds, UK.

Poster Presentations:

Marsden, L., Neuberg, J., Thomas, M., Linking spatial and temporal variations in shear stress within a volcanic conduit to observed deformation and seismicity, EGU; 2018 Apr 9-13; Vienna, Austria.

Marsden, L., Neuberg, J., Thomas, M., Collinson, A., Using seismic and tilt measurements to forecast eruptions of silicic volcanoes - an introduction, VMSG-TSG-BGA Joint Assembly; 2017 Jan 4-6; Liverpool, UK.


Teaching Interests:

2018/19:

Demonstrator for: Volcanic Processes
Demonstrator for: Applied Geophysics (seismic data processing)

2017/18:

Co-designed and ran a workshop titled 'Volcano Seismology' suitable for post-graduate level non-seismologists, following the VMSG conference in Leeds: 6th Jan 2018.
Demonstrator for: Time Series Analysis and Digital Signal Processing
Demonstrator for: Volcanic Processes
Demonstrator for: Applied Geophysics (seismic data processing)

2016/17:

Demonstrator for: Fundamentals of Geophysics
Demonstrator for: Volcanic Processes

Other Duties:

Co-host/organiser of the IGT internal seminar series (January 2017 - June 2018)

Qualifications

  • MSCI in Geoscience, (Geophysical Route), University of Durham