Short-period Rayleigh wave dispersion measurements as an evaluation tool to estimate Madeira heat source depths

(1) Instituto Dom Luiz IDL/CGUL, Universidade de Lisboa, Lisbon, Portugal, (2) Laboratorio Nacional de Energia e Geologia LNEG, Dep. of Geology, Amadora, Portugal, (3) Instituto Superior de Engenharia de Lisboa, Lisbon, Portugal, (4) University of Potsdam, Institute of Earth and Environmental Science, Germany, (5) Instituto Portugues do Mar e da Atmosfera IPMA, Lisboa, Portugal, (6) Geological Survey of Denmark and Groenland – GEUS, Denmark