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Author Topic:   Carbon 14 in fossils?
jar
Member (Idle past 421 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 8 of 40 (101583)
04-21-2004 2:59 PM


Again, perhaps I'm just confused...
but what does any of this have to do with dating objects?
If it is reasonable to assume that newer samples can be acurately dated, say those going back simply to 2-5 half lives, then that will cover a period of 10,000 to 25,000 years. In those instances, we are still dealing with fairly high levels, certainly detectable levels.
With that as a baseline, there is certainly other information, geographic and spatial positioning for example, to move beyond that limited time span by several orders of magnitude.
Dating does not depend on one measurement. Rather it is the sum of all available data. If you find an undisturbed site that can be accurately dated to 20,000 years ago, whatever is below that came from an earlier period.
If we looked only at radiocarbon dating to establish the age of something, it might well be subject to challenge. But that is not the case. Instead, dating is done by looking at the totality of indicators, only one of which is carbon dating. In addition, items are dated based on proximity to other items, condition, geology, geography and all other site and cultural specific factors.

Aslan is not a Tame Lion

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