Understanding through Discussion


Welcome! You are not logged in. [ Login ]
EvC Forum active members: 86 (8951 total)
728 online now:
dwise1, Hyroglyphx, jar, JonF, Lammy, PaulK, Thugpreacha (AdminPhat) (7 members, 721 visitors)
Newest Member: Mikee
Post Volume: Total: 866,862 Year: 21,898/19,786 Month: 461/1,834 Week: 461/315 Day: 57/82 Hour: 7/13


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   14C Calibration and Correlations
Taq
Member
Posts: 8207
Joined: 03-06-2009
Member Rating: 3.9


Message 50 of 59 (690474)
02-13-2013 12:50 PM
Reply to: Message 42 by CoolBeans
02-13-2013 10:18 AM


Re: Bump for CoolBeans
The discovery of collagen in a Tyrannosaurus-Rex dinosaur femur bone was recently reported in the journal SCIENCE. This is an outstanding find because collagen being a soft tissue present in most animals is supposed to decay in a few thousand years. Collagen is the main protein found in connective tissue of animals.

Finding tiny chunks of collagen proteins (just a few amino acids long if memory serves) is not the same as finding intact tissue. They may have very well found small peptides that bound to the apatite matrix of the bone and were therefore preserved. Same for heme proteins. This, in now way, puts the age of the fossil in doubt. The fossil is 65 million years old as determined by the radiometric dating of the rocks above and below the fossil itself. What these fossils are showing is that small amounts of biological material could be preserved over millions of years.

Recently Triceratops and Hadrosaur femur bones in excellent condition were discovered in Glendive Montana and our group received permission to saw them in half and collect samples for Carbon 14 testing. Both bones were tested by a licensed lab for presence of collagen. Both bones did in fact contain some collagen! The best process ( Accelerator Mass Spectrometry ) was used. Total organic carbon and dinosaur bio-apatite was then extracted and pretreated to remove potential contaminants and concordant radiocarbon dates were obtained, all of which were similar to radiocarbon dates for ice age megafauna such as Siberian mammoths, saber tooth tigers of the Los Angeles LaBrea Tarpits, sloth dung and giant bison.

Can you dig up the original references for these claims?

Edited by Taq, : No reason given.


This message is a reply to:
 Message 42 by CoolBeans, posted 02-13-2013 10:18 AM CoolBeans has not yet responded

  
Taq
Member
Posts: 8207
Joined: 03-06-2009
Member Rating: 3.9


Message 52 of 59 (690477)
02-13-2013 12:57 PM
Reply to: Message 51 by CoolBeans
02-13-2013 12:52 PM


Re: Bump for CoolBeans
I agree they are not very trust worthy, Im not on their side. Im just looking for a rebutal. Thats it.

We need the original references for a rebuttal. All we have is the claims being made as to what those references actually say. Given the track record of creationists, I don't think we should accept these claims at face value.

For example, Kent Hovind used to claim that pieces of the same mammoth had very discordant dates:

"One part of the Vollosovitch mammoth carbon dated at 29,500 years old. Another part of the same mammoth carbon dated at 44,000 years old."--Kent Hovind

When people actually checked his references they found that the dates were from different mammoths, not the same one.

http://www.angelfire.com/alt2/digicam/mammoth.html

That is the type of misrepresentation that we are used to, so I think it is prudent to work from the original sources instead of what the creationists claim the sources say.


This message is a reply to:
 Message 51 by CoolBeans, posted 02-13-2013 12:52 PM CoolBeans has acknowledged this reply

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2019