Originally posted by TheWayISeeIt
How is that exampled in Tiahuanaco, as to the time of construction being proved?
I have not seen any evidence -- and would imagine from the state of the site in Tiahuanaco that it would be near impossible to have such definfing
evidence -- that would demonstrate that kind of reliable C14 dating in terms of construction. Do you know of any? My impression of the C14 dating
was that it was initally counducted around Wendell's 1934 samples after WWII and the advent of the technology.
Typically, carbon 14 dating is used to determine the earliest human habitation and or the approximate ages of any organic materials used in, or
preserved by, the construction in question.
The C14 dates provided come from Tihuanaco itself as well as several other sites in the immediate vicinity.
When the oldest date for habitation is found, it can be assumed with a great level of certainty that any construction in the area post-dates the
earliest habitation of the area.
Samples from Tihuanaco itself were obtained where organic material could be found that would be pertinant to the dating of the habitation of the area.
One way to date the construction would be to take samples from areas directly beneath the lowest layer of stone construction. Whether this was done,
I don't know. But if the area was cleared down to bedrock - or even clean soil - before construction began, such samples wouldn't be a good
indication of the date of construction anyway. The C14 dates from such locations under those circumstances would yield the age of the organic
materials in the soil itself, which wouldn't (necessarily) coincide with the construction date.
If you wish to assume that the construction predates the earliest such time, you are actually assuming that a "great culture" lived there in a
previous time yet somehow was able to leave no trace at all of it's existence. This is not only unlikely, it's basically not possible.
Re
precisely where each sample was obtained, I don't have that information. Some sample locations were discussed in the paper I linked,
though.
Originally posted by TheWayISeeItWendell's samples, AFAIK, can only definitively point to habitation and his timelines for that were
moved back to later dates.
I know there were more extensive digs in the 80's and 90's, but have not seen any data that can truly attest to construction, i.e. tools to quarry
with, or records... but... since the inhabiting culture did not posses the capability of writing as well as the wheel... I guess those records
will never be forth coming.
As you stated, given the condition of the site when it was found - dismantled and robbed of (no doubt) a large number of artifacts, it's unlikely
that any construction tools or records will ever be found. Records, especially, since there is no evidence at all that the inhabitants actually had a
written language.
As far as the dates of collection of the samples for C14 testing, the paper I linked indicates that the samples that are shown there were collected
over several decades (the paper is actually a statistical analysis of these C14 dates and not a report on the dates
per se.) The earliest
samples appear to be from the 50's and 60's and the most recent I found (scanning the paper) were from 1999.
Harte