Lesson 2 4 tree ring dating

Here are a collection of great activities to choose from.

I would usually do the Power Point first and then do a simple "count the rings" lab.

Creationists have shown that the biblical kind is usually larger than the ‘species’ and in many cases even larger than the ’genus’—see my article Ligers and wholphins? Taking this into account would bring the age of the oldest living Bristlecone Pine into the post-Flood era.

Claimed older tree ring chronologies depend on the cross-matching of tree ring patterns of pieces of dead wood found near living trees.

If I had time, I would do a cross-dating activity, which shows how dendochronologists string rings from many trees together to determine the climate of an area.

Exploring the Methuselah Grove is a really nice way to calm them down after a couple of active activities.

To illustrate this we only have to consider the publication and subsequent withdrawal of two European tree-ring chronologies.According to David Rohl, the Sweet Track chronology from Southwest England was ‘re-measured’ when it did not agree with the published dendrochronology from Northern Ireland (Belfast).Also, the construction of a detailed sequence from southern Germany was abandoned in deference to the Belfast chronology, even though the authors of the German study had been confident of its accuracy until the Belfast one was published.This procedure depends on temporal placement of fragments of wood using carbon-14 (C age and that also extends to a younger age.A tree ring pattern that matches is found close to where the carbon ‘dates’ are the same. It assumes that it is approximately correct to linearly extrapolate the carbon ‘clock’ backwards. The closer one gets back to the Flood the more inaccurate the linear extrapolation of the carbon ‘clock’ would become, perhaps radically so.

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