oldmanintheskydidntdoit
Posts: 4999
Joined: July 2006
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| Quote (Daniel Smith @ Feb. 27 2008,18:05) | | Quote (oldmanintheskydidntdoit @ Feb. 26 2008,01:13) | | Sure, your saltational theory does not require a millions of years old earth but the fossils we're talking about do! |
How do you know that oldman? How long does fossilization take? What's the timespan needed to produce "the fossils we're talking about"? How did you arrive at that figure? Have you even thought about it? Or are you just parotting what you've heard someone else say? |
| Quote | | How long does fossilization take? |
I think it depends. This is an interesting article:
nonmineralized_tissues_in_fossils
| Quote | | The standard textbook account of “fossilization” might be termed the “Tin Man” story: soft tissues decay, the resulting cavities are filled with minerals precipitated from groundwater, and the original biominerals transform into or are replaced by other substances. This process results in a replica of the original object in which the original substance has been heavily altered and largely or entirely replaced by other materials |
And later
| Quote | | Indeed, it is only in the past 15 years that paleontological geochemists begun to address, in a serious and organized way, basic questions about why some things endure long enough to become fossils. To date, these efforts have revealed important details about the chemical behavior of some fossils in some settings, but we are a long way from the kind of systematic knowledge implied by the cited passages. |
Now, I'm not a paleontological geochemist. Neither, I suspect are you. So perhaps a firsthand account will be useful?
John W. Bebout, Ph.D., Sr. Technical Specialist, Oil and Gas, Fluid Minerals Group, Bureau of Land Management
| Quote | How long it takes for petrification to occur depends on a lot of factors like pH and temperature, but all things being equal, groundwater saturated with calcium carbonate(calcite)acts the fastest because calcite is more
soluble than silica or other petrifying minerals. In the parking garage where I work, which is only 3 years old, 4 inch stalactites have already formed from rainwater leaching calcium carbonate out of the concrete floors.
So if we accept the fact that petrification occurs as a continuum (in other words, a gradual process from partial to complete replacement/recrystallization/permineralization), and we assume the replacement material is calcite under ideal chemical conditions, petrification can certainly occur just a few hundred years or even less. |
So, how long does fossilization take? It takes as long as it takes. Those bones, in the right conditions can sit around for a long time. Long enough to fossilise at any rate.
 I'd say more towards hundreds of years then thousands.
| Quote | | What's the timespan needed to produce "the fossils we're talking about"? |
A mindbendengly far away long long time. Amazingly un-understandable. The timespan appears to be about 2/3 of the Mesozoic era. Is this a quiz?
| Quote | | How did you arrive at that figure? |
I did not conduct any of the research myself. I read the information at sources that I trust to tell me at the very least the truth as they see it. Part of them earning that trust in the first place is telling a story that has no, or few inconsistencies. A story that has consilience in fact, rather then "no inconsistencies". Overall. And the "story" that has consilience? Well, there's no Noah and his ark in it, that's for sure. What's your take on the Ark Daniel? Did all the ammonites climb aboard the ark or will even you dismiss that has a childs tale?
| Quote | | Have you even thought about it? |
I got three words for you buster.
AFDave
Cailbration Curves
Go look it up.
| Quote | | Or are you just parotting what you've heard someone else say? |
No, I find the subject fascinating and am grateful for the occasional bout of free education that goes on when folks like AFDave need correcting, in detail. Over and over.
What about you Daniel? You ever thought about it? Consider this then - if our understanding of the workings of matter is so far off that dating can be "wrong" then it's unlikely the computer you are sitting in front of with all it's quantum weirdness (tunneling is exploited don't ya know) would work as expected. And so, er, it's not wrong? Or you know something we don't know?
Do share.
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