My point is that (IMO) there was just one continent at the time of the flood (Pangaea)
No chance.
Pangaea began to break apart approximately 200 million years ago, at the end of the Triassic and the start of the Jurassic period.
Pangaea, the most recent supercontinent, formed roughly 335 million years ago during the Carboniferous period and remained largely intact through the Permian period, around 299 to 252 million years ago, stretching from pole to pole and surrounded by the super ocean Panthalassa The breakup of Pangaea was a gradual process driven by
plate tectonics, where the Earth's lithospheric plates slowly moved apart due to mantle convection and other geological forces
The initial rifting began with a
three-pronged fissure between what are now Africa, South America, and North America. Magma welled up through weaknesses in the crust, forming volcanic rift zones that eventually led to the creation of the Atlantic Ocean. Over millions of years, these rifts widened, and the continental fragments drifted to their present positions, forming the modern continents
The breakup of Pangaea had profound effects on Earth's climate, ocean circulation, and biodiversity. As the supercontinent fragmented, new shallow marine habitats emerged, and isolated landmasses allowed species to evolve independently, increasing biodiversity. This process also influenced the formation of mountain ranges, sedimentary basins, and the distribution of fossil records that provide evidence for the former supercontinent
In summary,
Pangaea’s disintegration started around 200 million years ago, marking the transition from a single massive landmass to the configuration of continents we recognize today, a process that unfolded over tens of millions of years through the me