Freethought & Rationalism ArchiveThe archives are read only. |
|
|
Thread Tools | Search this Thread |
07-13-2007, 10:46 AM | #271 | ||||||
Veteran Member
Join Date: Jun 2007
Location: Near Liverpool, UK
Posts: 1,072
|
Oh dear, not the "coal is too young" canard.
Oh, by the way, I've noticed a little something ... Dave starts by talking about alleged anomalies in coal, viz: Quote:
He then goes on to say: Quote:
That latter graphic does NOT deal with coal at all, but foraminifera collected from oceans, a totally different material, but which Dave then goes on to claim "should be C14 dead"! So in his opening gambit in that post, he has gotten his wires crossed with respect to two different samples of material of widely divergent origins. In fact, the Nadeau document (read the original here) does not mention coal at all, yet Dave tries to use this to invalidate C14 dating without any hint in his post at all that the Nadeau paper does not reference coal at all. Moreover, Dave continues with: Quote:
Quote:
Pyrgo murrhina : Sediment core GIK23068 at 338.5 cm depth, approx age 110,000 years Assorted Mussel/Snail species : Sediment core GIK14350, approx age 120,000 years These dates were confirmed independently by U/Th dating and ESR dating. So for Dave to introduce this paper, without announcing that there is a radical change of subject material involved, and to use this paper, which never references coal anywhere throughout its text body, as a means of casting doubt upon C14 dating by reference to coal, is in my view at best disingenous and at worst dishonest. Note that immediately after Dave casts doubt upon C14 dating by referring to the Nadeau paper, he says this: Quote:
Moreover, Dave apparently does not realise that coal contains measureable amounts of Radium - a radioactive element - and indeed the pollution from the burning of coal produces measureable increases in the amount of environmentally measured Radium. This Radium derives from the U238 decay series, and a quick look at Kaye & Laby's Tables of Physical & Chemical Constants, which includes an extensive table of the nuclides AND full decay sequences for a whole range of actinide elements, yields the following data for the U238 decay series: U238 -> Th234 : 4,500,000,000 years Th234 -> Pa234 : 24.10 days Pa234 -> U234 : 6.70 hours U234 -> Th230 : 245,000 years Th230 -> Ra226 : 75,400 years Ra226 -> Rn222 :1,600 years Rn222 -> Po218 : 3.824 days Po218 -> Pb214 : 3.10 minutes Pb214 -> Bi214 : 26.8 minutes Bi214 -> Po214 : 19.9 minutes Po214 -> Pb210 : 1.64 x 10-4 seconds Pb210 -> Bi210 : 22.3 years Bi210 -> Po210 : 5.013 days Po210 -> Pb206 : 138.4 days Pb206 is stable. Note the half-life of U238, the parent element of the series. Now, the fact that these radioactive elements are present in coal tells us that one can expect certain interesting phenomena to take place. Such as the production of C14 in coal due to the neutron flux resulting from the presence of specific elements in the U238 decay series (and for that matter the Th232 decay series, but that series is more complicated in the terminal stages which is why I haven't listed it here: however it is interesting to note that Th232 has a half-life of 14,050,000,000 years - on the basis of this, one can determine (via suitably precise measurements of the presence of different daughter nuclide species in a given rock sample that also contains Th232) the ratio of Th232 to daughter products present, and therefore how much of the Th232 has decayed, thus yielding another independent dating metric for samples of sufficiently great age. But I digress on that issue - what matters is that these radioactive elements are known to be present in coal, and that they therefore open up the distinct possibility that in situ C14 formation is taking place that creates the anomalous results. Meanwhile we have this: Quote:
So, for Dave to make the assertion that "Deep Time is in trouble" as he does in his latest post is not only premature, but based in at least one case upon an elision that is, in my view certainly, frankly dishonest. |
||||||
07-13-2007, 11:08 AM | #272 |
Veteran Member
Join Date: Mar 2007
Location: San Francisco, CA
Posts: 3,027
|
I'm also wondering about Dave's claims about 14C in diamonds. I've never seen any actual evidence that 14C has been found in diamonds. But even if it were found there, how did it get there? As far as I know, the carbon in diamonds is not derived from organic sources. Hence, that carbon has never been in an equilibrium state with the atmosphere, which would be a requirement if such radiocarbon were to be used to date these diamonds.
So what, if any, is the point? And besides, Dave still hasn't even begun to deal with the killing blow for all his claimed inaccuracies with radiocarbon: the consilience of calibration curves. Until he deals with that consilience, he has nothing intelligent or meaningful to say about radiocarbon dating. |
07-13-2007, 11:40 AM | #273 | |
Senior Member
Join Date: Jun 2007
Location: Florida, USA
Posts: 656
|
Quote:
Dave has generously scanned some of the RATE book in this post at RD.net. Here are the linkeys to the scans. http://i96.photobucket.com/albums/l1...E_Coal_C14.jpg http://i96.photobucket.com/albums/l1..._insitu_p1.jpg http://i96.photobucket.com/albums/l1..._insitu_p2.jpg http://i96.photobucket.com/albums/l1..._insitu_p3.jpg In the "-insitu_p2.jpg" document we see the rock references that RATE used {Kuhn et al. 1984} for establishing the background radiation. Apparently an average of granite deposits from deep mines. I already countered this point because most diamonds are found in strata (Kimberlite pipes) that have a much higher concentration of radioisotopes. No response from Dave or RATE on this. So once again we are left with a single statement from RATE that is based on nothing more than playing fast and loose with the DATA to come up with a pre-conceived conclusion. |
|
07-13-2007, 11:48 AM | #274 | |
Veteran Member
Join Date: Mar 2007
Location: San Francisco, CA
Posts: 3,027
|
Quote:
This appears to be an insurmountable problem for Dave, but he's never even acknowledged it as a problem, let alone addressed it. |
|
07-13-2007, 12:18 PM | #275 | ||
Senior Member
Join Date: Jun 2007
Location: Florida, USA
Posts: 656
|
Quote:
Quote:
|
||
07-13-2007, 01:12 PM | #276 | |||||
Veteran Member
Join Date: Jun 2007
Location: Near Liverpool, UK
Posts: 1,072
|
Quote:
Quote:
Quote:
Then we have this: Quote:
Moving on, we have: Quote:
The assorted business of talking snakes etc., is quite frankly so ludicrous that it is hardly worth the bother of refuting, but sadly that work must continue, tedious though it is. But the mere fact that much more critical holes are present in the Genesis account - a timescale that is massively at variance with known scientific reality (rejected by Dave for no valid scienific reason), the existence within the account of phenomena that require egregious violations of known physical law, and the quite ludicrous state of affairs where a total of eight human beings supposedly repopulate the entire planet and somehow, from a limited collection of genotypes, reproduce ALL of the observed human diversity present today in less than 6,000 years, whilst at the same time Dave dismisses summarily the idea that 3.8 BILLION years is sufficient for natural processes to produce the diversity of life we see around us. When the poll finally appears, I have a sneaking suspicion the results are going to be ... let's call them "interesting", shall we? |
|||||
07-13-2007, 03:45 PM | #277 |
Guest
Posts: n/a
|
Well, I just read Dave's latest and all I thought was "That's it?"
I mean WTF? That's all you could come up with, Dave? That's fucking pathetic. In fact it's beyond pathetic. It's insignificant. Davey boy, you're stuffed. Right royally screwed and buggered. You are still desperately running away from Teh Consiliance, boyo. You can't get away with this shit. Everybody knows what you're up to. Stop stuffing around and grow some balls, will ya? This is getting embarrassing. |
07-13-2007, 09:45 PM | #278 | |
Veteran Member
Join Date: Jun 2002
Location: California
Posts: 2,215
|
Quote:
and to top it off, he still completely ignores the question about C14 cal curve synchronicity. It's good that he's going away for a week so I won't be tempted to unload on his fucking dumbass ideas* Jesus Christ on a pogo stick but he deserves it. * Notice I said his ideas, not him personally. |
|
07-15-2007, 02:11 AM | #279 | |
Veteran Member
Join Date: Jun 2007
Location: Athens, Greece
Posts: 1,057
|
Quote:
Link to the debate The topic, as you can see, is whether dendro is based on a circular argument. Essentially, dave lost the debate before posting: BWE's opening post stands unrefuted. Dave's first attempt to discredit dendro was to (apparently) do a ctrl-f search on the sources given for "c14". He found that C14 was used at some point, and started gloating about it... Until it was pointed out to him that C14, in that particular measurement, was used not to determine an absolute sample age, but to sort the samples according to relative age (something that would be valid even under Brown's flawed model). After this was explained to him again and again, dave stopped arguing about it (but did not admit he was wrong, of course; he just remained silent). Instead, and after some search in his beloved indoctrination sites, he went down another disastrous path: He tried to question the validity of dendro, first by quoting papers that backfired on him (like Yamaguchi), and finally by implying that Ferguson and other scientists have fudged the data in forming the Master sequence. I kid you not. He first quoted some creo wacko who whined about not being allowed to see the data. Then HE wanted to see the data in Ferguson's paper himself: When links were provided, he said they did not work (it seemed he was the only one in the forum for whom they didn't work, but whatever). Then he said he could not make much of the raw data anyway, and demanded to see a picture of a sample in the sequence. Not a picture of the sequence: An online closeup of a specific tree in the sequence.(*) And this is where we are now. It's that pathetic: If that "formal" debate was actually formal, the mods would have pulled the plug after dave's latest two posts. The only thing that's "wanting" is, not only dave's ability to discredit dendro, but to even construct a coherent argument against it that does not resort to conspiracy theories. (*): Bear in mind that, if dave really wanted to see the rings with his own eyes, he could do what BWE suggested: Use the money he's saving for a trip to Ken Ham's "museum" to go on a REAL educational tour, and see them in person. He could take his kids, too. |
|
07-15-2007, 12:06 PM | #280 | ||||
Senior Member
Join Date: Jun 2007
Location: Portland, OR
Posts: 624
|
Quote:
Quote:
Quote:
Quote:
Somehow, I suspect there might be a specific disconnect somewhere. Wow. |
||||
Thread Tools | Search this Thread |
|