When archaeologists study an excavation site, objects found closer to the surface are not as old as those found in deeper layers. This is based on the principle of stratigraphy, which states that in a sequence of sedimentary layers, the oldest layers are at the bottom and the youngest are at the top. Therefore, items discovered closer to the surface are generally more recent compared to those found deeper in the excavation.
When archaeologists study an excavation site objects found closer to the surface are
often as damaged as those found below them
Impossible to date with any accuracy
Unlikely to contain radioactive material
Not as old as those found in deeper layers
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