Types of radiometric dating methods

They assign 4.5 billion years to earth based on the belief that earth itself evolved, so to speak, from a molten mass.But they cannot directly date the earth using selected isotopes because they believe all rocks have cycled over imagined eons, leaving no original rocks to test. Researchers age-dated a meteorite to sometime around the age they would accept.Fossil remains are found in sedimentary rock layers.Layers of sediment form when various size particles (e.g., dirt, rocks, and vegetation) accumulate in places such as deserts, rivers, lakes, and the ocean.Index fossils are distinct fossils, usually of an extinct organism found in only one or a few layers, though that layer or layers outcrops in many places—at least that’s the theory.They help establish and correlate the relative ages of rock layers.

Nevertheless, most textbook writers and the scientists they rely on grew up with a belief in uniformitarian geologic processes.However, as you will soon learn, these techniques stray far from absolute dates, though they may reveal relative ages of some rocks.Today’s evolutionists base their age of the Earth on their interpretation of radioactive elements.Index fossils typically have a short stratigraphic or vertical range.In reality, many index fossils occur above or below their expected ranges.

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