Register | Sign In


Understanding through Discussion


EvC Forum active members: 64 (9164 total)
6 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,864 Year: 4,121/9,624 Month: 992/974 Week: 319/286 Day: 40/40 Hour: 6/6


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Age Correlations and an Old Earth: Part II.
Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 222 of 306 (253239)
10-19-2005 10:50 PM
Reply to: Message 1 by RAZD
12-05-2004 3:42 PM


I'm going to take this one step at a time. First I need to better understand each method of dating.
Due to the resinous wood and extremely cold and arid habitat, decay of dead wood is extremely slow, and wood on the ground in some stands has ages exceeding 10,000 years.
I looked at all the sites you posted and couldn't find any info on how they determined that the wood on the ground was that old. I assume it had to do with matching tree rings to Methusalah, but if you don't mind I would like more information on exactly how they do this.

This message is a reply to:
 Message 1 by RAZD, posted 12-05-2004 3:42 PM RAZD has replied

Replies to this message:
 Message 230 by RAZD, posted 10-20-2005 7:12 PM Christian has not replied
 Message 231 by RAZD, posted 10-20-2005 7:18 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 223 of 306 (253476)
10-20-2005 4:57 PM
Reply to: Message 1 by RAZD
12-05-2004 3:42 PM


This sequence of annually laminated sediments not only forms a unique continuous palaeoenvironmental record after the last interglacial but also permits us to reconstruct a complete 14C calibration extending back to at least 45 ka BP
You'll have to excuse my ignorance on such things, but what is an interglacial, and how do you construct a 14C calibration from laminated sediments in a lake?

This message is a reply to:
 Message 1 by RAZD, posted 12-05-2004 3:42 PM RAZD has replied

Replies to this message:
 Message 228 by RAZD, posted 10-20-2005 7:03 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 224 of 306 (253478)
10-20-2005 5:02 PM
Reply to: Message 1 by RAZD
12-05-2004 3:42 PM


We have performed AMS C-14 measurements on more than 250 terrestrial macrofossil samples of the annual laminated sediments from lake Suigetsu.
I might actually understand this to some degree. Let me take a shot at it. Is it saying that they took fossil samples from the lake and did c14 tests on them and that the tests agreed with the hypothesized age of the layer they were found in, based on the annual varve thing? Am I anywhere close?

This message is a reply to:
 Message 1 by RAZD, posted 12-05-2004 3:42 PM RAZD has replied

Replies to this message:
 Message 227 by RAZD, posted 10-20-2005 6:57 PM Christian has not replied
 Message 229 by NosyNed, posted 10-20-2005 7:08 PM Christian has not replied
 Message 232 by Coragyps, posted 10-20-2005 8:45 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 225 of 306 (253481)
10-20-2005 5:16 PM
Reply to: Message 1 by RAZD
12-05-2004 3:42 PM


Note further that this is beyond (and thus confirms) the dates found for the cave paintings at Lasceaux and Chauvet - the archaeological record shows that an early nomadic cave using civilization that involved stone tools, burial ceremonies and undeniably impressive artwork at the Lasceaux Caves in southern France around 15,000 to 13,000 BC, (what is known as the late Aurignacian period) or 17000 years ago, and at a cave near Chauvet (south-central France) around 30,340 and 32,410 years ago.
Are you saying that since the dates obtained by the lake varves were older than the age estimated for the cave drawings, that confirms the time of the cave drawings?

This message is a reply to:
 Message 1 by RAZD, posted 12-05-2004 3:42 PM RAZD has replied

Replies to this message:
 Message 226 by RAZD, posted 10-20-2005 6:51 PM Christian has replied
 Message 240 by RAZD, posted 10-23-2005 4:53 PM Christian has replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 241 of 306 (254737)
10-25-2005 2:07 PM
Reply to: Message 240 by RAZD
10-23-2005 4:53 PM


I'm coming. I haven't read or posted anything since Thursday and now it's Tuesday so I'm just getting back into it.

This message is a reply to:
 Message 240 by RAZD, posted 10-23-2005 4:53 PM RAZD has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 242 of 306 (254743)
10-25-2005 2:23 PM
Reply to: Message 226 by RAZD
10-20-2005 6:51 PM


Not quite. The cave drawings were dated with 14C (1), from artifacts found in the cave that had been living plant material before being brought into the caves by the artists.
OK, got that part.
What the lake varves actually do is correlate the 14C with the variations in atmospheric 14N and cosmic radiation (how 14C is generated). This means fewer assumptions in the date answers.
Is it that they can tell what the climate was like then, when these artifacts were supposedly made? This is very foggy for me.
Maybe because I don't know much about C14 or N14.

This message is a reply to:
 Message 226 by RAZD, posted 10-20-2005 6:51 PM RAZD has replied

Replies to this message:
 Message 246 by NosyNed, posted 10-25-2005 2:56 PM Christian has replied
 Message 253 by RAZD, posted 10-25-2005 8:51 PM Christian has replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 243 of 306 (254746)
10-25-2005 2:47 PM
Reply to: Message 1 by RAZD
12-05-2004 3:42 PM


A good overview of the method, problems, limitations and accuracy of radiometric Carbon 14 dating can be found at Carbon Dating:
I tried to look at this but the page could not be displayed. It's hard for me to put a lot of stock in carbon dating when I've heard so many accounts of things that were known to be younger or even still alive that came out old when they dated them. Also I've heard of diamonds which should be billions of years old, but still have carbon in them.

This message is a reply to:
 Message 1 by RAZD, posted 12-05-2004 3:42 PM RAZD has replied

Replies to this message:
 Message 244 by NosyNed, posted 10-25-2005 2:52 PM Christian has not replied
 Message 245 by Chiroptera, posted 10-25-2005 2:55 PM Christian has replied
 Message 247 by roxrkool, posted 10-25-2005 3:16 PM Christian has replied
 Message 252 by RAZD, posted 10-25-2005 6:47 PM Christian has not replied
 Message 256 by RAZD, posted 10-25-2005 9:31 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 267 of 306 (256067)
11-01-2005 5:35 PM
Reply to: Message 245 by Chiroptera
10-25-2005 2:55 PM


Re: I know what he meant.
Maybe I should've said C14, I obviously don't know a whole lot about this stuff.

This message is a reply to:
 Message 245 by Chiroptera, posted 10-25-2005 2:55 PM Chiroptera has not replied

Replies to this message:
 Message 276 by RAZD, posted 11-03-2005 8:33 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 268 of 306 (256071)
11-01-2005 5:50 PM
Reply to: Message 247 by roxrkool
10-25-2005 3:16 PM


It was just something I heard on the Christian radio station. I probably should've done more research before posting about it. They did say though, that since diamonds are so hard, they shouldn't be subject to contamination.

This message is a reply to:
 Message 247 by roxrkool, posted 10-25-2005 3:16 PM roxrkool has not replied

Replies to this message:
 Message 274 by RAZD, posted 11-03-2005 8:13 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 269 of 306 (256076)
11-01-2005 6:02 PM
Reply to: Message 246 by NosyNed
10-25-2005 2:56 PM


Re: Not a climate issue
Oh man!! I've been avoiding this topic, not because I think you guys are right about the age of the Earth, but because it's so hard for me to understand this stuff. I have to read each sentence over and over before I have a foggy idea of what is being said. I think I'll just make a commitment to spending some time here. I'll take turns between this thread and the one I started about the evolutionary chain. Hopefully, my knowledge will build and it will get easier for me.
I'm still failing to see what the relationship is between the lake varves and the C14. This paragraph makes absolutely no sense to me:
The lake varves offer a measure of the degree of error caused by the non-constant creation of C14 and a correction for it. The degree of error is less than 10 %. The corrections vary from very much less than that up to about that much.

This message is a reply to:
 Message 246 by NosyNed, posted 10-25-2005 2:56 PM NosyNed has not replied

Replies to this message:
 Message 272 by Coragyps, posted 11-01-2005 6:58 PM Christian has replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 270 of 306 (256081)
11-01-2005 6:17 PM
Reply to: Message 1 by RAZD
12-05-2004 3:42 PM


The calibration of the C-14 by the diatom varves is not to correct the method of doing the tests or the basis of the testing (whether underwater or not), but to adjust for variations in the amount of solar radiation that causes C-14 to occur (and then start decaying)
Can you tell, based on the varves, what the amount of solar radiation was?

This message is a reply to:
 Message 1 by RAZD, posted 12-05-2004 3:42 PM RAZD has replied

Replies to this message:
 Message 275 by RAZD, posted 11-03-2005 8:18 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 271 of 306 (256082)
11-01-2005 6:21 PM
Reply to: Message 253 by RAZD
10-25-2005 8:51 PM


Re: climate
We also know that the production of 14C is affected by the climate, thus we can predict that there would be a specific variation of 14C age data with climate and would expect a specific sided variation in the data during the above periods. This was observed, it is one of many such correlations.
Can you make that prediction based on what was found out by studying the varves?

This message is a reply to:
 Message 253 by RAZD, posted 10-25-2005 8:51 PM RAZD has replied

Replies to this message:
 Message 273 by RAZD, posted 11-03-2005 8:11 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 277 of 306 (256881)
11-04-2005 5:54 PM
Reply to: Message 272 by Coragyps
11-01-2005 6:58 PM


Re: Not a climate issue
This makes a LOT more sense than anything I've read so far on this thread. So there was stuff in the lake that they did C14 tests on and the C14 test came up with similar dates to what was estimated based on where they were found in the varves? That sounds like pretty good reasoning. Why didn't anybody say that before? Or did they say it and it just didn't connect for some reason?

This message is a reply to:
 Message 272 by Coragyps, posted 11-01-2005 6:58 PM Coragyps has not replied

Replies to this message:
 Message 278 by NosyNed, posted 11-04-2005 6:49 PM Christian has not replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 280 of 306 (257558)
11-07-2005 6:00 PM
Reply to: Message 1 by RAZD
12-05-2004 3:42 PM


The bottom line is that the evidence of an old earth is as overwhelming as the data that the earth is an oblate spheroid that orbits the sun, and thus "Young Earth Creationists" (YEC) are no less foolish than "flatearthers" and "geocentrists" in their mistaken beliefs (in fact you could say that the evidence for an old earth is more accessible and easier to comprehend than the evidence that invalidates the geocentric model of the universe).
I have to take issue with this because it seems like more of an insult than something you actually believe. I feel kind of redicules pointing this out because it's rather obvious, but you can tell the shape of something by looking at it. The age is another matter which always involves some sort of speculation. Of course people used to think the earth was flat because we're on it and we're much smaller than it is, but since we can now fly around it and go into outer space and photograph it, we can be certain that it is a sphere. As with the earth orbiting the sun, it's something which can be observed. Age can't be observed unless you were there at it's beginning.
It's one thing to say that there is conculsive evidence for the age of the earth, that may be so, but remains to be seen as far as I am concerned. It's quite another to say it's as plain as the shape, that's just not true.
Let me give you an example. Two people are looking at a child. There is no doubt that the child is 40 inches tall and weighs 35 pounds. She can be weighed and measured, that solves any arguement between the two people. Neither is there any doubt that the child plays with dolls, because the two people can observe her doing that. They could argue, however, over her age. One could insist that she must be a 4 year old while the other thinks she is only a large 2 year old. Both could argue their evidence but they can't know for sure unless they have been around since the child's birth or they know her parents.

This message is a reply to:
 Message 1 by RAZD, posted 12-05-2004 3:42 PM RAZD has replied

Replies to this message:
 Message 281 by Coragyps, posted 11-07-2005 7:33 PM Christian has not replied
 Message 282 by RAZD, posted 11-07-2005 8:52 PM Christian has replied

Christian
Member (Idle past 6283 days)
Posts: 157
Joined: 10-16-2005


Message 284 of 306 (259698)
11-14-2005 4:50 PM
Reply to: Message 282 by RAZD
11-07-2005 8:52 PM


Re: No insult intended, really.
You can easily see how agreement between these chronologies would create a valid and logical composite chronology that extends far enough into the deep past that it doesn't just question the concept of a young earth, but to renders it invalid.
ok, well at this point it's not so easy for me to see. Maybe there's a good book you can reccommend me because I have such a limited amount of computer time and I'd rather focus on the "evolutionary chain" thread. I think that even if you're right about the age of the earth (and I'm nowhere near convinced of that), it doesn't mean evolution is correct.I can read books while I do other things, so a book would really be helpful.

This message is a reply to:
 Message 282 by RAZD, posted 11-07-2005 8:52 PM RAZD has replied

Replies to this message:
 Message 285 by MangyTiger, posted 11-14-2005 11:50 PM Christian has not replied
 Message 286 by RAZD, posted 11-15-2005 12:15 AM Christian has not replied

Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024