CPT

In the six hundredth year of Noah's life, in the second month, the seventeenth day of the month, the same day were all the fountains of the great deep broken up, and the windows of heaven were opened. Genesis 7:11

"Geophysicist Samantha Hansen and colleagues may have just

strengthened evidence for catastrophic plate tectonics (CPT), the leading theoretical model for explaining the Genesis Flood. 

Almost 40 years ago, creation scientist and geophysicist Dr. John Baumgardner suggested that the entire pre-Flood ocean floor logically must have been rapidly subducted into the earth’s mantle during the Flood cataclysm:

"Placing the beginning of the Flood at the Precambrian-Cambrian boundary implies that dramatic tectonic change including the breakup of the supercontinent Pangea, the subduction of all the pre-Mesozoic oceanic lithosphere, and the formation and cooling of all the present-day oceanic lithosphere must have occurred during and since the Flood."

--Because of their worldview, uniformitarians ignore in their theories and models the experimental finding that silicate rocks can weaken by factors of billions or more under the levels of shear stress that can arise in the earth’s mantle. 

As a consequence of this rapid runaway subduction, new ocean floor is rapidly formed. Because this hot ocean floor is buoyant, it rises and forces enormous amounts of seawater onto the continents, causing catastrophic flooding on a global scale. 

However, as this new ocean crust cooled, it shrank and caused the height of the ocean bottom to decrease and allowed the floodwaters to drain off the continents. 

Furthermore, the resulting warmer oceans and volcanoes associated with the rapid subduction would have been prime triggers for the post-Flood Ice Age.

In 1994, Baumgardner pointed out that spectacular geophysical evidence for this recently subducted ocean floor exists today near the base of the mantle:

"In regard to the fate of the pre-Flood seafloor, there is strong observational support in global seismic tomography models for cold, dense material near the base of the lower mantle in a belt surrounding the present Pacific Ocean. Such a spatial pattern is consistent with subduction of large areas of seafloor at the edges of a continent configuration commonly known as Pangea."

--The apparent coolness of the subducted slabs at the base of the mantle today is an argument that the subduction occurred in the quite recent past.

Recent research simply affirms this earlier finding, based on research published last year, that the remains of ancient ocean seafloor indeed are present in the southern hemisphere’s lower mantle just above the outer core:

"The most high-resolution map yet of the underlying geology beneath Earth’s Southern Hemisphere revealed something we previously never knew about: an ancient ocean floor that may wrap around the core."

Geophysicists can infer clues about Earth’s composition from the way earthquake waves travel through the interior. 

Sound waves move especially slowly in areas called ultralow velocity zones (ULVZs). Hansen and her colleagues found “anomalous” ULVZs in the deep mantle above the Core Mantle Boundary (CMB). These ULVZs were between a few kilometers and tens of kilometers thick:

"According to the researchers, these ULVZs are most likely oceanic crust buried over millions of years....It’s tricky to make assumptions about rock types and movement based on seismic wave movement, and the researchers aren’t ruling out other options. However, the ocean floor hypothesis seems the most likely explanation for these ULVSs right now."

This interpretation of the data is yet further affirmation of creation science and catastrophic plate tectonics (CPT)." 

ICR