But the method doesn't always work. When scientists at the Hawaiian Institute of Geophysics tested volcanic lava, they got ages ranging up to 3 billion years old. But the lava was from an eruption that happened only 200 years ago. Here's another anomaly. The principle rocks of the earth's crust are sedimentary rocks, so-called because they are formed from sediment like sand and silt.
Evolutionists believe each rock layer represents several million years.
But scientists often find fossils shooting straight up through several layers of rock. Fossilized trees are found standing upright, cutting through 40 feet of rock. If it really took millions of years for the sediment to be laid down, the trees would have rotted away long before they could fossilize. But there's no sign of decay. That dramatically collapses the standard time table.