In his discussion of my paper N. J. Page adheres to the belief, expressed by Hostetler, Coleman, Mumpton, and Evans (1966, p. 75), that:

“Extensive brucite formation during serpentinization indicates…, unless massive amounts of both magnesia and silica are removed from the ultramafic mass, voiume increases of about 40 percent. Field evidence supporting such migration is generally lacking.”

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