Re: Meaning of the Geological Column

On Sat, 10 Mar 2007 05:42:05 GMT, "Ross Langerak"
<rlangerak@xxxxxxxxxxxxx> wrote:

snip>

Strata below a certain level
may be tilted while strata above that level may be horizontal.

how does a tilted strata demonstrate that a layer was once there and
is now missing, please?

Let's take another look at my previous statement: "Erosion and other
geological processes produce inconsistencies between sequences of strata."
Then I said, "Strata below a certain level may be tilted while strata above
that level may be horizontal." We are looking for inconsistencies here, not
missing layers. It is the difference between the tilted strata below and
the horizontal strata above that is significant. Clearly, the tilted strata
below the inconsistency has experienced processes that the horizontal strata
above has not (tilting).

when you say "below the inconsistency," what is the inconsistency?
Clearly, it is not anything in the tilted layer that is the
inconsistency because you say it is "below the inconsistency." And it
is not the horizontal strata above the tilted layer, because there is
nothing inconsistent about a horizontal layer. So what exactly is the
inconsistency? A missing layer?

If the tilted strata terminates at the
inconsistency,

is this "inconsistency" a missing layer?

this suggests that erosion has occurred.

can a tilted strata terminate because there was nothing more deposited
to that particular layer until the next layer was laid down?

While the lower sequences were tilting and eroding,
no deposition of fossils would have been taking place.
The result would be a gap in the fossil record between the
highest level of the tilted strata, and the lowest level of the horizontal
strata.

so there IS some standard of what should come next in the fossil
record. And if the expected fossil is missing, then the conclusion
must be that the layer was eroded?

Do you have, somewhere, some real-world series of stacked layers that
contain the types of fossils that generally, in succesion, span life
forms from trilobites, starfish, Pterygotus, Ichthyostega, Dimetrodon,
Placodu, Archaeopteryx, Tyrannosaurus, Brontotheres, Sabre-toothed
cat, Deinotherium, woolly mammoth, ending with primates?

Your position is that fossils in rock strata serve as evidence for
evolving species; that after these findings were made, then
evolutionists came along and merely recognized the ascending order and
interpreted such a progression as evidence for evolution of the
species from simple to complex. So please for this evidence from the
real world. Where have fossils beyond the shell level, been found in
this ascending order?

And if the fossils are not stacked but scattered, then please for the
index fossils that place these scattered higher-level fossils in
ascending order. I would like to see an example of a Tyrannosaurus,
for example, that is found in the same location as an index fossil
that has been relatively dated as belonging to a specific period. And
what determines that the particular index fossil is older or younger?

Strata below
a certain level may be interrupted while strata above that level are
continuous.

how does interrupted strata demonstrate a missing layer?

The interruption might indicate erosion had taken place. Using an
illustration similar to McBane's from your original post:

aaa aaaaaaaa aaaaaaaaa aaa
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
cccccccccccccccccccccccccccccccccccccccccccccc
dddddddddddddddddddddddddddddddddddddddd
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

This is what we would expect to see if the upper layer - and any layers
above it - were exposed to erosion. Now, if this formation is submerged
again, a new layer would be deposited on top of the upper layer, filling in
the gaps.

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
aaahhhhhhhhhhhhhaaaaaaaahhhhhhaaaaaaaaahhhaaa
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
cccccccccccccccccccccccccccccccccccccccccccccc
dddddddddddddddddddddddddddddddddddddddd
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

This would indicate that there had been a gap in deposition.

is this an example of a single location? If so, I understand and
agree with your illustration as an example of how to recognize erosion
of a layer for a localized stretch of rocks. However, if your example
is in answer to my question of how layers in North America are
identified as being from the same period as layers in Europe, then it
doesn't add up.

Over a wider scale, why would the missing aaa's imply only erosion?
Unless you are suggesting that water covered the entire area so that
the same material was deposited equally all over, it is entirely
possible for deposits to be made at intermittent and uncorrelatable
locations.

And I would still like you to explain why the period of time of
deposition is a period that carried only a certain type or mix of
material such that distinct layers are recognized. Are you saying
that over a period of 25 million years, the only material being
deposited was the type of material seen in a distinct layer? Why?

snip>

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