© 2004 -
The standard geological column:
The standard geological column below is what you will find in the textbooks.
It reflects what geologists find in the field.
There are recognised patterns in the rock sequences throughout the world. For example, the Carboniferous is well known for it's coal, the Permian and Triassic for it's red beds, and the Upper Cretaceous for it's Chalk.
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CENOZOIC |
Holocene |
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(= recent life) |
Pleistocene |
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Pliocene |
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Miocene |
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Ollgocene |
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Eocene |
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Palaeocene |
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MESOZOIC |
Cretaceous |
Chalk. |
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(= middle life) |
Jurassic |
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Triassic |
Red Beds. |
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PALEOZOIC |
Permian |
Red Beds. |
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(= ancient life) |
Carboniferous |
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Devonian |
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Silurian |
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Ordovician |
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Cambrian |
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PRECAMBRIAN |
Vendian (Proterozoic) |
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The different periods in the geological column are given names which are derived from:
1) The geographical region where rocks of that period are well exposed, eg the Permian
period is named after Perm -
or 2) After it's typical deposits, eg the Carboniferous period for its coal beds.
or 3) After ancient peoples, eg the Ordovician period after the Ordovices, and the Silurian period after the Silures.
Every layer will not be found together as seen in the diagram -
Also, every period marked on the diagram will not have it's own coloured stratum
out in the real world! That is because many of the periods were set according to
the type of fossils found in them, eg The Silurian-
Certain fossils are found in certain layers, and so there is a generally recognised
succession. (But as more and more fossils are found, there are now numerous ones
which are in the 'wrong' layers).
This succession is often taken to show evolution, but this is not the only answer.
Naming certain periods according to the type of fossils found in them will create
errors of judgement. For example the fossils of the mammal-
But Lystrosaurus has now been discovered in the Permian period in Zambia. [1]
This means that, for all the times the Lystrosaurus bearing rocks were used as a dating tool, it can no longer automatically be assumed to be Early Triassic. Which then put's a question mark over the date given to the other fossils near the Lystrosaurus fossil. (Important, for example, if they had been mammals). [2]
When the geologic column was still being worked out (in the mid 19th century), Herbert Spencer a Victorian philosopher commented on the folly of setting time periods according to fossils found. He called his essay; 'Illogical Geology'. [3] (He was an atheist and an enthusiastic supporter of Darwinism).
Specifically, he questioned the practice of using particular fossils as supposed
time-
So the standard geological column reflects what geologists find in the field, but unfortunately many people interpret the evidence in a way that supports Evolution, and they see this as the only answer.
Evolution is often accepted without question by the general public, but in our articles
we seek to show an alternative view -
[1] King, G.M. and Jenkins, I. 'The dicynodont Lystrosaurus from the Upper Permian
of Zambia: evolutionary and stratigraphical implications, Palaeontology'. 40(1):149-
[2] 'The fossil record: becoming more random all the time' by John Woodmorappe. First
published in 'TJ' (formerly Technical Journal) 14(1):110-
[3] Spencer, H. 'Illogical geology' in: 'The Works of Herbert Spencer', 13:192-
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