Reply #12: It will be hard to explain how wood got cooked at 1400 degrees in argon

[Barrett808]

To create petrified wood, the researchers bought pine and poplar boards at a lumber yard. They gave a half-inch cube of wood an acid bath, then soaked it in a silica solution for days. The wood was air-dried, cooked in an argon-filled furnace at temperatures as high as 1,400 degrees and cooled in argon to room temperature.

I suppose if the Grand Canyon was carved by the Great Flood, anything's possible.