Fennoscandia and Russia seismic tomography showing geology of the Asthenosphere Lithosphere boundary from 100 – 270 km depth. Comparison with other continents and the moon. 7 January 20219 November 2019 by Robert Watchorn Fennoscandia and Western Russia geology, using Landsat and the seismic tomography of the Asthenosphere/Lithosphere boundary from 100 – 270 km depth. Like it? Share it!