This 2005 image shows a concentration of grains of zircon taken from sand deposits, where it occurs with other heavy minerals such as magnetite and ilmenite. (Credit: U.S. Geological Survey)
I guess Noah was a Homo habilis, then.
For the people that the Lord has chosen to believe in Him and in the redemptive work of Christ for their salvation, a trusting faith that all of His Word is true, including the Genesis flood, is no big stretch. For those who the Lord has chosen would not come to a believing, saving faith, you could show them a YouTube of the flood and they still wouldn’t believe.
I wonder if the megasharks on TV came from such megafloods.
A mega flood would be a great event to see. I would have liked to see Lake Agassiz spill its contents over the northwest United States.