More Earth Expansion nonsense...
Hi Larry
Marvin Herndon has a model in which all the terrestrials began as the heavy-element cores of Jovian mass 'proto-planets' which then had their hydro-helium envelopes blown away (somehow.) Then Earth and Venus have undergone re-expansion after all the pressure was released, but (somehow) delayed until the start of the Jurassic - the oldest sea-floor.
Adam