Gravimetry and magnetics# Semianalytical Gravimetry and Geomagnetics in 2D Semianalytical Gravimetry and Geomagnetics in 2D Gravimetry in 2D - Part I Gravimetry in 2D - Part I 2D gravity modelling and inversion 2D gravity modelling and inversion 3D gravity modelling and inversion 3D gravity modelling and inversion 3D magnetics modelling and inversion 3D magnetics modelling and inversion