It is not a problem for a creationist that there are diatoms (sea creatures that coat the ocean floor when they die) over a mile up in Antarctica.
Genesis 7:17-20 And the flood was forty days upon the earth; and the waters increased, and bare up the ark, and it was lift up above the earth. 18 And the waters prevailed, and were increased greatly upon the earth; and the ark went upon the face of the waters. 19 And the waters prevailed exceedingly upon the earth; and all the high hills, that were under the whole heaven, were covered. 20 Fifteen cubits upward did the waters prevail; and the mountains were covered.
