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I’d been recommended by a guitarist friend as a last-minute substitute for the guitarist in Hack Bartholomew’s better-than-average pick-up band.

Relative dating def

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Geologists have studied the order in which fossils appeared and disappeared through time and rocks. Fossils can help to match rocks of the same age, even when you find those rocks a long way apart.

The method of reading the order is called stratigraphy (layers of rock are called strata).Once the rocks are deposited flat, forces can act upon them to tilt or fold them.Law of superposition: This is one of the most basic techniques of relative dating geologists use.Principle of original horizontality: This principle simply states that deposition of rocks occurs horizontally or nearly horizontally. Most deposition occurs as the ocean deposits sediment flat and horizontally on existing rock, either on the ocean floor or on the continent.Sediments can be deposited on an incline, but this doesn't happen very often.Scientists are always spouting information about the ages of rocks and fossils. Well, they figure it out using two different methods: relative dating and numerical dating.