It is very convincing to me,that the evidence refutes rather than supports most accounts of these construction marvels.
I cannot fathom the entire achaeological science which cannot account for the enormity of the megaliths,being accurate in much of its version of
history, without first unlocking the secrets of these things.
The proposition you make is very logical in the sense that it may account for much more of the facts, though perhaps yet not all....
It occurs to be that water in its three states,ice ,vapour , and liquid,may ac# for some gravitational anomalies, as it changed position, as well as
composition during ice ages, and in between.
Could this account for some of your proposed anomalies?
There are gravitic anomalous areas over the worlds surface today that are measured.As gravity is supposedly related to mass density, the expectation
would be for minor fluctuations at least over the composition of the crust.
Not sure if true but one would suspect a slightly stronger gravity field over the canadian shield as opposed to say yellowstone where the crust may be
of different composition, or perhaps thickness...?
The evidence for giants even primitive man seems taller, the size of the dinosaurs, the indications of large faune, and flora (giant ferns)etc leads
to the speculation the earth may have had a lower gravty in the past....
The Co2/Oxy ratio could also account for these biig species, but gravity may provide a better grip on the difference in size of the fauna back
I know this preceeds the megaliths buy millions of years but maybe opens the door to fluctuating gravity over time...?
No expert at anything special, i cannot propound any particular version, but do agree that the OP has a point though the atmospheric explanation may
be faulty in relation to gravitics.
edit on 26-1-2011 by stirling because: to say that the atmosphere may not have the effect you seek, but
there may be other influences....