Fenerit wrote:Now I'm working on a different thing: the screenshot below show a portrayal of the "inductor" of the outer core's electromagnetic dynamo from which could be emanates the field lines of the Magnetic Earth.
http://shutter12.pictures.aol.com/data/ ... 4G0300.jpg
Really nice rendering - you captured much of the seismic data graphically I was going to send numerically. No need now. But the S-wave should not make it past the mantle-outer core interface and appear on the inner core. Shear waves do not travel through liquids.. Mineralogically, I have some info for you:
From near surface to 410 Km - Olivine
From 410 Km to 520 Km - Wadsleyite
From 520 Km to 660 Km - Ringwoodite (@ 1600 degrees C)
These all have the same chemical formula (Mg, Fe)2SiO4. Olivine and Wadsleyite are orthorhombic, but at 520 Km, pressure forces the structure to become isometric - more compact.
Below 660 Km to 2900 Km, it is approximately 70% Perovskite ( (Mg, Fe)SiO3 ) and 30% Magnesiowustite ( (Mg, Fe)O ).
Are your seismic lines available as a separate download or part of an upgraded add-on? I'd love to share your model with a group of Earth science teacher educators at the end of May.
Eric