On an old earth, mountains would have eroded by now. At present rates of
erosion, the continents would have been eroded to sea level in less than
fifteen million years.
Source:
Morris, Henry M., 1974. Scientific Creationism, Green Forest, AR: Master
Books, p. 155.
Response:
Old mountain ranges are eroded flat. But there are also forces
creating new mountains. For example, the Himalayas are still rising.
Present rates of erosion are particularly high due to more mountain
building and higher mountains than usual in earth's history. (Erosion
slows as mountains lose elevation.)
The reasoning behind this claim directly contradicts the reasoning
behind the claim that volcanoes build too much
material for an
old earth.
