Were you not insinuating that the fossils of sea creatures (clams and other mollusks) on the tops of mountains were due to the Noah flood which lasted lasted less than a year?The sediments were deposited along with the mature organisms. Deposition could have occurred very quickly and in stages. Moreover Psalm 104 mentions how the ‘mountains rose’ and ‘valleys sank’ which has significant meaning. The theory of plate tectonics, although immensely popular, was not developed by geologists, it was proposed by geophysicists to explain earthquakes. It fails to explain mountain building but Psalm 104 dovetails nicely into Genesis 7 for explaining mountains and sedimentation.
As I previously stated, it takes several years for clams and other mollusks to reach maturity as indicated in many of the sea creature fossils found on mountain tops, and therefore can not be attributed to a flood lasting less than a year.