Uncertainty analysis of gravity disturbance for geothermal exploration in the Geneva Basin (Switzerland)

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Lorenzo Perozzi , Luca Guglielmetti , Andrea Moscariello 


Gravity data from the International Gravimetric Bureau and the
Gravimetric Atlas of Switzerland have been used to evaluate their
application and limitations as a subsurface investigation tool to
constrain key geological structures in support of the geothermal
exploration in the Geneva Basin (GB). In this context, the application
of an effective processing workflow able to produce a topography-free
gravity disturbance and quantify its uncertainty is a crucial first step
to delineate gravitational effects correlated to geologic sources of
geothermal interest. This study focuses on an innovative processing
workflow applied to publicly available gravity data in order to produce
stochastic realizations of topography free gravity disturbance residuals
anomalies. The resulting realizations are compared to a standard
interpolation technique and correlate to the available density data and
geologic knowledge, demonstrating the potential of the gravity method
for geothermal exploration in sedimentary basins.




Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics


Uncertainty quantification, Gravity Disturbance, Topographic correction, Sequential Gaussian Simulation, normal gravity, Uncertainty quantification; Sequential Gaussian Simulation


Published: 2020-12-17 14:32


CC BY Attribution 4.0 International

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