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Author Topic:   Evidence for and against Flood theories
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 24 of 112 (168247)
12-14-2004 6:52 PM
Reply to: Message 22 by TheLiteralist
12-14-2004 2:37 AM


Re: Some more flood questions
In the silt thread you spoke a little about sorting. I am going to dig into my scant Geo 101 and 102 knowledge to see if I can deliver an accurate representation of geologic column and how it cannot have been hydraulically sorted. Resident real geologists please feel free to correct me where I may be wrong.
Classical geology tells us that different depositional environments will deposit a different type of sediment. For example, very close to the shore of a coast is mostly sand which is composed of medium to fine grained particles while off in deep water it is mostly silt and mud composed of fine to very fine particles. So in a given location in the geologic column we might see something like this.
mudstone - very fine grained
siltstone - fine grained
sandstone - medium grained
conglomerate - large grained
sandstone
siltstone
mudstone
siltstone
sandstone
...
...
Here we have a situation where through the geologic column we have places with fine grained sediment both above and below more coarse sediment. In class we learned that this is diagnostic of a location where the depositional environment changed from deep ocean to land back to deep ocean as ocean levels went up and down over long periods of geologic time.
The problem with this for some kind of hydraullic sorting standpoint is that the rocks are NOT sorted from largest to smallest bottom to top like what happens in your jar of sediment and water. For the flood to be true there must have been some mechanism that we cannot identify today that sorted the sediment in some places contrary to what you would expect to get hydraulically.
I would feel more comfortable if someone else could verify that this is a correct assessment. After all, I only did get a B+ in Geo 102.
Moreover, does anyone know of any good examples where we see this kind of this in the column?

This message is a reply to:
 Message 22 by TheLiteralist, posted 12-14-2004 2:37 AM TheLiteralist has replied

Replies to this message:
 Message 25 by edge, posted 12-15-2004 11:43 PM Jazzns has replied
 Message 29 by roxrkool, posted 12-16-2004 1:40 AM Jazzns has replied
 Message 32 by TheLiteralist, posted 12-19-2004 12:01 AM Jazzns has replied

  
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 30 of 112 (168883)
12-16-2004 10:55 AM
Reply to: Message 25 by edge
12-15-2004 11:43 PM


Regressive - Transgressive
Yes, I remember calling it that now. Thanks for the good examples. I actually thought there was a good example of one here where I live in New Mexico but I wasn't sure enough to say so. Geologists that I spoke to when I was in the program said that they are stoked to live out here because this region has such an interesting geologic history.
Overall I think that it is this issue with regressive-transgressive sequences that I think really puts the nail in the coffin of the hydraulic sorting argument. Creationists just dont often understand that yes the geologic column is sorted but not by anything that any way resembles the consistency we would see from a single sorting process. Among other things it is sorted by changes in local depositional environment and by change in fossil morphology (NOT size or density) with depth.
I just wish that they would be okay with believing that God was the sorting mechanism and stop trying to make a science out of it. I have many friends who take this position and we get along fine. I would not get along fine with them though if they were out picketting in front of a school board meeting demanding eviloution warning stickers on books.

This message is a reply to:
 Message 25 by edge, posted 12-15-2004 11:43 PM edge has not replied

Replies to this message:
 Message 33 by TheLiteralist, posted 12-19-2004 1:09 AM Jazzns has replied

  
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 31 of 112 (168884)
12-16-2004 11:04 AM
Reply to: Message 29 by roxrkool
12-16-2004 1:40 AM


Re: Some more flood questions
Thanks for the great example.
One thing you never see in YEC literature is what exactly the rocks mean. To YECs, a shale is a shale, limestone is a limestone, and sandstone is sandstone. But to the rest of the geologic world, these rocks represent dynamic and ever-changing environments, and the relationship between the rocks is just as important as the rocks themselves.
I totally agree. No creatioinist that I have ever heard of really stops to think about what a 1000 ft fossiliferous limestone really means. One of my favorite arguments against flood mythology is the sheer quantity of geologic features created by biomass. 3 billion years worth of life just does not fit into a 2000 year old edenic earth It would be like me trying to fit all my wife's clothes into one suitcase.

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Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 40 of 112 (169908)
12-19-2004 4:56 PM
Reply to: Message 32 by TheLiteralist
12-19-2004 12:01 AM


Re: Some more flood questions
YECers would say, I think, that such sorting might represent temporary regressions of the flood waters during the initial 40 days and/or a set of layers being laid down in the initial flood stages and then being somehow affected in the recessional stages of the Flood.
You don't really understand. We see in the column the exactly upsidedown of what you would expect from your sand in a jar situation. These can only from this way BECAUSE the water is calm and finer particles can settle out as sea level changes with a nice period. I am specifically saying that a violent flood would not allow for this to happen.
I feel obligated to repeat that I am not a geologist - I don't even have a descent layman's knowledge. I do have an idea of how hydrologic sorting works and that's pretty much it, I think.
Nor am I a geologist but it dosen't take a major in geology to understand that you need extensive periods of calm with gentle rise and fall of sea level over more than just a year to get fine silt particles to settle out of water such that larger particles will then settle out on top of them during a recession.
... See reply to next post for more ...

This message is a reply to:
 Message 32 by TheLiteralist, posted 12-19-2004 12:01 AM TheLiteralist has not replied

  
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 41 of 112 (169910)
12-19-2004 5:04 PM
Reply to: Message 33 by TheLiteralist
12-19-2004 1:09 AM


Re: Regressive - Transgressive
I really think you are visualizing a tranquil flood event, wherein the water gently rises, kills everything and gently recedes.
No, I am saying that a violent flood could not give you an upsidedown hydraulic sorting.
Also, I mentioned that no amount of mechanical sorting can give you the type of fossil sorting that we see in the record. To many YECs think of a 'sorted' fossil record and think that it is some kind of simple sorting like from large to small, dense to light, fast to slow. The fossil record is sorted by none of these or even any combination of these. It is sorted by change in morphology and only that.
I also mentioned my favorite argument against the flood which is quantity of geologic features created by biomass. Even IF the world was this edenic paradise where everyhing grew to be huge and the vast majority of the earth was land it cannot account for the sheer mass of oil, coal, limestone, marble, fossils that we have found considering that we haven't even found it all.
This message has been edited by Jazzns, 12-19-2004 05:04 PM

This message is a reply to:
 Message 33 by TheLiteralist, posted 12-19-2004 1:09 AM TheLiteralist has replied

Replies to this message:
 Message 46 by TheLiteralist, posted 12-20-2004 2:04 PM Jazzns has replied

  
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 51 of 112 (170212)
12-20-2004 5:06 PM
Reply to: Message 46 by TheLiteralist
12-20-2004 2:04 PM


Re: sorting & biomass
I'll try to keep this within the few sub-topics that spun off our initial discussion.
Okay, so you aren't visulizing a tranquil flood. Good. And I do understand your point, but I think a world-wide flood model COULD account for "upsidedown" hydrualic sorting.
Except for the fact that no one has figured out how a flood could do this. Speaking from common sense, which is all I have because I am not a fully trained geologist, there is no concieveable mechanical way that smaller particles would settle out before larger particles in turbulent water. It just dosen't happen that way. We could always just invoke 'something' that COULD have caused this to happen but that would not be science.
Why then are there overthrust and re-work theories for fossils not found in their expected evolutionary order?
When a geologist finds a fossil out of order they do not just simply hand wave it as a result of tectonic activity. When you see a fossil out of order you should be suspicious of some kind of activity and look for other evidence of folding/faulting/tilting/etc. Either that or that particular species may have survived longer than we previously knew. Either way, you need more evidence before you can tell the meaning of an 'out of order' fossil. If there is a thrust fault that caused an out of order fossil there should also be a series of rock formations that are out of order. If you can drill and find this there is a genuine thrust fault. It is not as though thrust faults don't exist and scientists are just using them as excuses to make sure the fossil record isn't contradicted.
Where were all these things found? Earth, right?
Right but there is a volume vs surface area problem here. The compressed amount of geologic features created by biomass almost does cover the earth right now. Imagine if all that biomass was not compressed.
(I don't see how limestone and marble figure into this.)
Limestone is made from compressed critters. Marble is made from compressed limestone through metamorphasis after it is buried and heated at extreme depth by our standards.
From Problems with a Global Flood, 2nd edition
How were limestone deposits formed? Much limestone is made of the skeletons of zillions of microscopic sea animals. Some deposits are thousands of meters thick. Were all those animals alive when the Flood started? If not, how do you explain the well-ordered sequence of fossils in the deposits? Roughly 1.5 x 10^15 grams of calcium carbonate are deposited on the ocean floor each year. [Poldervaart, 1955] A deposition rate ten times as high for 5000 years before the Flood would still only account for less than 0.02% of limestone deposits.
...
"Scientific creationists interpret the fossils found in the earth's rocks as the remains of animals that perished in the Noachian Deluge. Ironically, they often cite the sheer number of fossils in 'fossil graveyards' as evidence for the Flood. In particular, creationists seem enamored by the Karroo Formation in Africa, which is estimated to contain the remains of 800 billion vertebrate animals (see Whitcomb and Morris, p. 160; Gish, p. 61). As pseudoscientists, creationists dare not test this major hypothesis that all of the fossilized animals died in the Flood.
"Robert E. Sloan, a paleontologist at the University of Minnesota, has studied the Karroo Formation. He asserts that the animals fossilized there range from the size of a small lizard to the size of a cow, with the average animal perhaps the size of a fox. A minute's work with a calculator shows that, if the 800 billion animals in the Karoo formation could be resurrected, there would be twenty-one of them for every acre of land on earth. Suppose we assume (conservatively, I think) that the Karroo Formation contains 1 percent of the vertebrate [land] fossils on earth. Then when the Flood began, there must have been at least 2100 living animals per acre, ranging from tiny shrews to immense dinosaurs. To a noncreationist mind, that seems a bit crowded."
...
A thousand kilometers' length of arctic coastal plain, according to experts in Leningrad, contains about 500,000 tons of tusks. Even assuming that the entire population was preserved, you seem to be saying that Russia had wall-to-wall mammoths before this "event."
Even if there was room physically for all the large animals which now exist only as fossils, how could they have all coexisted in a stable ecology before the Flood? Montana alone would have had to support a diversity of herbivores orders of magnitude larger than anything now
observed.
Where did all the organic material in the fossil record come from? There are 1.16 x 10^13 metric tons of coal reserves, and at least 100 times that much unrecoverable organic matter in sediments. A typical forest, even if it covered the entire earth, would supply only 1.9 x 10^13 metric tons. [Ricklefs, 1993, p. 149]
My favorite part of the Karoo Formation bit is that creationists were using it as evidence for the flood before they realised just what it would have meant for all those animals to have been alive at one time.
In each of these cases, even if you were able to get enough land to account for all the animals you don't have enough ocean to account for all the limestone or enough room for the super tall and dense forrests to produce all that coal. It is a totally loosing position to take just from a quantatative analysis.
About oil being organic, read the 'Black Gold' thread in the geology forum. Bill Birkeland gives a great presentation about oil fields and their biological origin. He pretty much shut everyone up on that thread. It was pretty awesome.

This message is a reply to:
 Message 46 by TheLiteralist, posted 12-20-2004 2:04 PM TheLiteralist has not replied

Replies to this message:
 Message 52 by Coragyps, posted 12-20-2004 8:42 PM Jazzns has replied

  
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 55 of 112 (170308)
12-20-2004 11:20 PM
Reply to: Message 52 by Coragyps
12-20-2004 8:42 PM


Re: sorting & biomass
I am interested. Anything that compounds this problem is really amazing. I mean, trying to fit 3.8 Ga of life into 6000 years has all kinds of problems.

This message is a reply to:
 Message 52 by Coragyps, posted 12-20-2004 8:42 PM Coragyps has not replied

Replies to this message:
 Message 56 by Steen, posted 12-31-2004 12:49 AM Jazzns has not replied

  
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 58 of 112 (173807)
01-04-2005 3:44 PM
Reply to: Message 50 by TheLiteralist
12-20-2004 3:45 PM


Another Bump
I agree with Lam. I was sad to see this thread get no more attention after the last few posts. Care to comment any more TheLiteralist?

This message is a reply to:
 Message 50 by TheLiteralist, posted 12-20-2004 3:45 PM TheLiteralist has replied

Replies to this message:
 Message 59 by TheLiteralist, posted 01-04-2005 6:42 PM Jazzns has replied

  
Jazzns
Member (Idle past 3942 days)
Posts: 2657
From: A Better America
Joined: 07-23-2004


Message 61 of 112 (173874)
01-04-2005 7:13 PM
Reply to: Message 59 by TheLiteralist
01-04-2005 6:42 PM


Re: Another Bump
Cool. It is just hard to know when the conversation is over in a forum when the other person just stops posting. Thanks for the closure.

This message is a reply to:
 Message 59 by TheLiteralist, posted 01-04-2005 6:42 PM TheLiteralist has not replied

  
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