The idea that the present is the key to the past—the processes we see happening slowly today have always happened slowly. See page 105-107.
See page 105-107 and Q&A: Geology for additional information.
See page 105.
See Q&A: Geology for additional information. Generally, the Flood's waters deposited many layer of sediments, which eventually hardened into rock. The waters rushing off the continents towards the end of the Flood would have shaped and scoured out of many of the rock formations we have today.
Examples: The finely-preserved features found in animals and plants throughout the fossil record testify that fossils could not have formed slowly and gradually. Polystrate tree trunks are also evidence of catastrophic deposition.
Some elements (such as uranium) undergo radioactive decay to produce other elements. By measuring the quantities of radioactive elements and the elements into which they decay in rocks, geologists can determine how much of each element is present in a sample. This measurement is interpreted to show how much time has elapsed since the rock has cooled from an initially molten state. Assumptions listed on page 109. See pages 107-109 and Q&A: Radiometric Dating for additional information.