Originally Posted By: Orac
you would never know if you were right in your lifetime.


Then you would know only if you were wrong. smile

Back to the serious stuff.

(6). "No current theory explains how continental crust came to be, let alone why it is so different from oceanic crust."

Does Mansfield's theory hold that the continental crust of PreEarth was chemically/lithologically different from the underlying mantle material?

There never was nothing.