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Author Topic:   Carbon-14: A Scientifically Proven Dating Method?
Coragyps
Member (Idle past 764 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 7 of 25 (48323)
08-01-2003 11:43 AM
Reply to: Message 6 by Percy
08-01-2003 10:44 AM


General - I quote myself from another thread on this subject a few weeks ago, addressing buzsaw, who never really answered:
Please, for yourself and all of us here:
1) Go to Science | AAAS
2) Register. It's free. They won't spam you.
3) Find the Archive
4) Use the "search" function to find volume 279, page 1187.
5) Print out the article - Acrobat has nicer graphics, but the plain text is intelligible
6) Please, please, READ THE ARTICLE! Kitigawa & van der Plicht, "Atmospheric Radiocarbon Calibration to 45,000 yr B.P.: Late Glacial Fluctuations and Cosmogenic Isotope Production."
7) Reread, and ask questions here or elsewhere if there is something you don't know how to interpret.
8) Once you have an appreciation for what K. & vdP did, reread your post above.
9) Then let's discuss......
things like, "why would 45,000 individually counted layers in a lake in Japan - layers that are even now forming once per year - correlate in such a pretty fashion with 250 14C dates, and with tree ring dates from Germany?"
Thanks.

This message is a reply to:
 Message 6 by Percy, posted 08-01-2003 10:44 AM Percy has not replied

  
Coragyps
Member (Idle past 764 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 12 of 25 (48411)
08-02-2003 8:06 PM
Reply to: Message 1 by The General
08-01-2003 2:25 AM


General, should you return, you might want this for your files:
-living mollusc shells were dated at up to 2300 years old (Science, Volume 14)
Is apparently a reference to the paper "Radiocarbon Dating: Fictitious Results with Mollusk Shells", M L Keith and G M Anderson, Science, vol 141, pp 634-637 (1963). The entire article is in essence an explanation why river-dwelling snails give bad 14C dates - they get lots of their carbon from "old" groundwater and humus - and a warning to other scientists doing 14C dating to look out for these effects.
Whoever you got that list from, and my guess is that his initials are KH, is out to deceive, or at the very best never even read the title of the paper he referenced, though he did apparently find the time to find sample 62-48 in Table 1 and extract only that date.

This message is a reply to:
 Message 1 by The General, posted 08-01-2003 2:25 AM The General has replied

Replies to this message:
 Message 13 by The General, posted 08-05-2003 2:47 AM Coragyps has replied

  
Coragyps
Member (Idle past 764 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 17 of 25 (48775)
08-05-2003 10:11 AM
Reply to: Message 13 by The General
08-05-2003 2:47 AM


Re: Responding to Critics
General! I'm glad you're back! Post 7, please...

This message is a reply to:
 Message 13 by The General, posted 08-05-2003 2:47 AM The General has not replied

  
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