Relative dating rock layers worksheet

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(Evidence of the same fire may be seen as a layer of ash in the rocks to correlate a rock layer with the tree rings).

Tree rings can be used to date events up to 3000 years ago.

When the tree dies, the rings can be counted and events such as forest fires can be dated.Resources in this section pertain to the formation and evolution of the Earth and how it has been discovered through the relative and absolute dating of rocks and fossils.Topics include rock layer sequencing, fossil correlation, and radiometric dating.Photo by Phil Medina Volcanic time markers - a layer of volcanic dust covering layers.When a violent eruption of a volcano occurs it may send dust high into the atmosphere where it can spread over the entire planet.

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