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SE | Volume 10, issue 3
Solid Earth, 10, 839–850, 2019
https://doi.org/10.5194/se-10-839-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Understanding the unknowns: the impact of uncertainty in the...

Solid Earth, 10, 839–850, 2019
https://doi.org/10.5194/se-10-839-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 13 Jun 2019

Research article | 13 Jun 2019

Constraining the geotherm beneath the British Isles from Bayesian inversion of Curie depth: integrated modelling of magnetic, geothermal, and seismic data

Ben Mather and Javier Fullea
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Subject area: Crustal structure and composition | Editorial team: Seismics, seismology, geoelectrics, and electromagnetics | Discipline: Geophysics
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Cited articles  
Afonso, J. C., Fullea, J., Yang, Y., Connolly, J. A. D., and Jones, A. G.: 3-D multi-observable probabilistic inversion for the compositional and thermal structure of the lithosphere and upper mantle. II: General methodology and resolution analysis, J. Geophys. Res.-Sol. Ea., 118, 1650–1676, https://doi.org/10.1002/jgrb.50123, 2013. a
Al-Kindi, S., White, N., Sinha, M., England, R., and Tiley, R.: Crustal trace of a hot convective sheet, Geology, 31, 207–210, https://doi.org/10.1130/0091-7613(2003)031<0207:CTOAHC>2.0.CO;2, 2003. a
Amante, C.: ETOPO1 1 arc-minute global relief model: procedures, data sources and analysis, Boulder, Colo.: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center, Marine Geology and Geophysics Division, https://doi.org/10.7289/V5C8276M, 2009. a, b
Arrowsmith, S. J., Kendall, M., White, N., VanDecar, J. C., and Booth, D. C.: Seismic imaging of a hot upwelling beneath the British Isles, Geology, 33, 345–348, https://doi.org/10.1130/G21209.1, 2005. a
Baykiev, E., Guerri, M., and Fullea, J.: Integrating Gravity and Surface Elevation With Magnetic Data: Mapping the Curie Temperature Beneath the British Isles and Surrounding Areas, Front. Earth Sci., 6, 1–19, https://doi.org/10.3389/feart.2018.00165, 2018. a, b, c, d, e, f, g
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The temperature in the crust can be constrained by the Curie depth, which is often interpreted as the 580 °C isotherm. We cast the estimation of Curie depth, from maps of the magnetic anomaly, within a Bayesian framework to properly quantify its uncertainty across the British Isles. We find that uncertainty increases considerably for deeper Curie depths, which demonstrates that generally this method is only reliable in hotter regions, such as Scotland and Northern Ireland.
The temperature in the crust can be constrained by the Curie depth, which is often interpreted...
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