Halifax quick dating

06-Feb-2020 03:00

We know that in the modern world, sand dunes move fairly quickly. Pinatubo showed, a single eruption is all that's needed, and even an intense pyroclastic flow does not flatten all of the trees.

For example, the Sleeping Bear Sand Dunes, on the eastern shore of Lake Michigan, have been known to cover trees ten meters high in just a few years. The Tertiary Period fossil forests in Yellowstone National Park, USA are of the volcanically-buried type.

It is much commoner for these fossils to be buried by volcanic ash, or by a debris flow caused by an eruption. It is even more common for these fossils to be found in sandstone or mudstone which gives evidence of being river-deposited.

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Some "drowned" trees can even keep living, if they are tolerant of waterlogged conditions.

The first argument is that the fossils aren't all found on one single level of the Geologic Column.

Some are from the Devonian Period, well before the dinosaurs.

And, there are differences, depending on where they are found.

For example, giant lycopod trees are only found in Carboniferous Period rocks, and cypress trees aren't found below the Cretaceous Period.

Some "drowned" trees can even keep living, if they are tolerant of waterlogged conditions.

The first argument is that the fossils aren't all found on one single level of the Geologic Column.

Some are from the Devonian Period, well before the dinosaurs.

And, there are differences, depending on where they are found.

For example, giant lycopod trees are only found in Carboniferous Period rocks, and cypress trees aren't found below the Cretaceous Period.

Many of these upright fossils are in Carboniferous Period rocks with coal deposits.