Talks, field trips and events organised by west country geological organisations are publicised on this blog. Discussion about geological topics is encouraged. Anything of general geological interest is included.
Saturday, 28 April 2012
Sea sediments tell seismic story
Previous earthquakes that rivalled the March 2011 Tohoku tremor in size may be recorded in sediment samples just recovered from the seafloor off Japan. A German-led scientific cruise obtained the cores from 16 different locations, some of them at a water depth of 7.5km. The sediments hint at three major disturbances on the ocean bed that could be the result of the submarine landslides often seen with big quakes. Read more