There is still a lot to be worked out in quite a few of the complex structures of plate tectonics and the added information is certainly appreciated.

It is a learning curve for a field that complex and your knowledge shared may inspire future generations to take up the challenge of learning more about what drives and impacts on this most delicate planet.

I hope your words inspire. Just a question Richard Holle would the presence of known liquids other than water, say oil have any significant role in plate movement. As an additional where there are crystalline features such as salt domes that are already non contiguous in structure would these have a dampening effect on the micro cracking that assists plate movement or would it also tend to act as an additional driving formation?

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"Nature is obliged to let reality determine its laws, whereas mathematics is under no such constraint."