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Hapgood\'s Shifting Crust Theory
Charles H. Hapgood, a professor of the Philosophy of Science at at Keene St. Teacher's College (NH), presented in "The Earth's Shifting Crust" the idea that the entire lithosphere, or crust of the planet,slips as a unit over the mantle in response to rotational imbalances. Hapgood thought that such slippage, only a few inches per year, were continually occuring, but that certain times the transition layers between the mantle and the crust could liquify due to increased heat and pressure and the motion could become many time greater.
The crust makes up only about 1 to 2% of the mass of the Earth. During the motion of the crust, the mantle and core would continue spinning normally.
The Introduction to the book (which was self-published)was written by Hapgood's friend, Albert Einstein who was quite taken by the idea (for those interested in a side of the cultural icon which many are not aware of, click this hyperlink The Einstein Connection
In the Hapgood theory, ice ages result not from moving glaciers, but from the displaced polar ice being moved to a warmer climate.The cooling of the ice age is the result of melting ice.
While glaciers moving down alpine valleys are impressive, consider that a relatively few miles from where this is being written an ice sheet estimated to be a mile thick existed not too many thousands of years ago. The closest mountains from which such a "glacier" could have been propelled are several hundred miles away in Canada.
One of the objections to the Hapgood idea involves the torque necessary to move the crust, although a buildup of ice and snow over many millenia could have triggered the last major shift.
I like this idea for several reasons, one of which has been mentioned above. But also, it would mean that in the previous interglacial period estimated at 80,000 years the sea level of the planet might have been several hundred feet lower than it is currently, and there would have been a long stable period for a prediluvian civilization to have arisen at what was then sea level,and then have been gradually flooded out by rising ocean levels.
Charles H. Hapgood, a professor of the Philosophy of Science at at Keene St. Teacher's College (NH), presented in "The Earth's Shifting Crust" the idea that the entire lithosphere, or crust of the planet,slips as a unit over the mantle in response to rotational imbalances. Hapgood thought that such slippage, only a few inches per year, were continually occuring, but that certain times the transition layers between the mantle and the crust could liquify due to increased heat and pressure and the motion could become many time greater.
The crust makes up only about 1 to 2% of the mass of the Earth. During the motion of the crust, the mantle and core would continue spinning normally.
The Introduction to the book (which was self-published)was written by Hapgood's friend, Albert Einstein who was quite taken by the idea (for those interested in a side of the cultural icon which many are not aware of, click this hyperlink The Einstein Connection
In the Hapgood theory, ice ages result not from moving glaciers, but from the displaced polar ice being moved to a warmer climate.The cooling of the ice age is the result of melting ice.
While glaciers moving down alpine valleys are impressive, consider that a relatively few miles from where this is being written an ice sheet estimated to be a mile thick existed not too many thousands of years ago. The closest mountains from which such a "glacier" could have been propelled are several hundred miles away in Canada.
One of the objections to the Hapgood idea involves the torque necessary to move the crust, although a buildup of ice and snow over many millenia could have triggered the last major shift.
I like this idea for several reasons, one of which has been mentioned above. But also, it would mean that in the previous interglacial period estimated at 80,000 years the sea level of the planet might have been several hundred feet lower than it is currently, and there would have been a long stable period for a prediluvian civilization to have arisen at what was then sea level,and then have been gradually flooded out by rising ocean levels.
