Why Hawaii's volcano is so UNUSUAL

Hey physics girl, there are some problems with this theory... the crossover depth of magma is 220 miles deep. Magma below 220 miles will compress and sink!  

The so called "magnetic reversals" are not actually reversals at all.  They are points of varying magnetic intensity. An arbitrary line has been drawn through the data, it is then assumed that the measurements below this line indicate magnetic south while points above indicate magnetic north.  

Further problems arise when you consider plate tectonics in general...  we are all taught that this theory is correct, but when the details are examined the theory fails miserably.  Subduction does not occur!  What force broke the earths crust into plates?  What force moves one plate under another?  Is this imaginary force pulling the plates or pushing them?  Why are there gravity deficiencies found above ocean trenches?  What is responsible for the arc and cusp pattern found around the ring of fire?   

I suggest you thoroughly study the hydroplate theory.