One of the most convincing examples to support impact cratering ideas is seen in this
image from a youtube video where a ballistic projection hits a lead-metal plate.
Here in this example we see further into the importance of considering hydro-dynamics
in an explanation of crater formation. The malleable surface responded to the impact force
in almost the same manner and with similar results as were seen in experiments which
involved water saturated soil.
The chain-reaction effect can be projected with very little stretch of the imagination
by combining the dynamics of several experiments where malleable material is involved.
Several videos showing a shock-wave in impressive detail are at youtube channel: "dahlenaz"
You can even see a subcrater formed as the shock wave traveled around the globe.
Imagine the chain reaction of the impact which formed meteor crater in Arizon were there
was once a large body of water. Displacement of the water would lead to isostatic rebound
over the entire area as the two local inland lakes drained. What were once low-altitude lakes
becomes elevated regions that remain dry to preserve the blemish of the impactor's force.http://para-az.com/colcavity/abstract.html
Marble canyon, according to Walter Brown of Hydroplate-theory fame, is not an erosion feature,
it is a crack, and isostatic uplift can be part of the cause. Material desiccation should also be
factored into the explanation.
We must be able to differentiate between crater type if we are to advance alternatives. d..z
Larger image provided Here
Experiment conducted by video author: https://www.youtube.com/user/taofledermaushttps://www.youtube.com/watch?v=zNwXukKlerA