So if scientists wanted to measure the age of a fossil using this method, they would look for a nearby layer of igneous rock (e.g.rock that forms from lava from a volcanic eruption)—perhaps in the rock layers above where the fossil was found, or in the layers below.When they find one, they gather a sample of the hardened lava and send it off to a laboratory to test it for radioactive elements.When a volcano erupts, hot, molten rock (called “lava”) from deep inside the Earth is released. Elements are the “building-blocks” of the universe (for example, water is made from the elements hydrogen and oxygen). It’s important that we allow God’s written record of history, the Bible, to guide our thinking about the past—this includes our understanding of the age of the Earth/universe How many times have you heard something like, “This animal lived 50,000 years ago”, or “This person died 20,000 years ago’?Have you ever wondered how the scientists knew the age of the bone?To test this method, some scientists gathered samples from hardened lava at Mount St Helens, which erupted most recently in the early 1980s.The samples, which came from rocks that formed between 19, were sent to a lab and were “dated” using the potassium-argon (K-Ar) method.
Traditional radiocarbon dating is applied to organic remains between 500 and 50,000 years old and exploits the fact that trace amounts of radioactive carbon are found in the natural environment.Those who don’t accept the Biblical account of history look for other ways to discover the age of things.One of these methods is based on a substance found in our bodies, plants and all living things—it’s called carbon. This makes the plant appear to have died many more years ago than it actually did (for example, the plant might appear to be, say, 3,000 years old, rather than 2,000).Most people think that scientists can actually measure the ages of rocks, using a method called “radiometric” or “radioisotope” dating.More often, rocks are “dated” by the fossils they contain, based on a pre-existing belief in evolution.These rocks are If this method doesn’t work on rocks the ages of which we know, how can we trust it to work on rocks of unknown age?