We know the layering was consistent. We have way to verify this.
http://www.asa3.org/aSA/PSCF/2003/PSCF12-03Seely.pdf
There are a dozen or so important Greenland ice cores, but the latest and greatest are GRIP (Greenland Ice Project) and GISP2 (Greenland Ice Sheet Project 2), which were extracted at the Summit where the ice rarely melts.
An assumption has been made here and again, without taking all the variables in a cataclysmic event as the global flood would give. They expect normal weather patterns and yet something had caused the Ice Age; and I do believe some other evolutionary scientists had creditted it to the asteroid that killed off the dinosurs; which of course, I believe the global flood did that and the asteroid (s) was just part of the cataclysm.
That's right. Asteroids as in plural. It is an assumption to say that the dating method as to when these other asteroids had hit the earth was done at different times millions of years apart when there is no way anyone can confirm that if they had all occur at the time of the global flood for which the reservoir effect would throw everything off in dating anything.
Anyway, I'd say an assumption was made about the summit where it rarely melts because of this: was not the wooly mammoth found of the frozen Tundra at that same belt region of the summit at Greenland? The same wooly mammoth that had greeneries still in its mouth which testified that it was hit with a sudden freezing event? Greeneries that would suggest a greenhouse temperature type all over the world of that time before it had happened?
Now for a sudden drop in temperatures from that greenhouse one, would there not be a series of rise & fall of temperatures in a chaotic weather pattern within a relatively short period of time before it would settle down in its formation of the ice shelf for that yearly or seasonal rating system that we are observing today?
My point is: without taking in account of the reservoir effect and other factors, known & unknown, of the global flood, no one can really date anything well past that time of the global flood for certainity.
GRIP was dated by counting back annual layers from the surface to c. 14,500 BP (before the present, dated 1950) using electrical conductivity method (ECM, see below) and the rest of the ice core was dated on the basis of flow modeling and chemical techniques. GISP2 was dated by visually counting annual hoar frost layers back to c. 12,000 BP and from 12,000 to 110,000 BP by visually counting annual dust layers.
Back to 12,000 BP, this counting was validated by a very close agreement of three independent methods of counting the annual layers. From 12,000 BP back to 40,000 BP, the counting was validated by a very close agreement of two independent methods of counting the annual layers, and from 40,000 BP back to 110,000 BP by a close agreement of two independent methods. Also, despite the different methods used for dating GRIP and GISP2, there is "excellent agreement" between them (and with deep sea cores as well); so the cores corroborate each other.
The first way we know the top 12,000 layers are annual is because the snow that falls in the summer in Greenland is affected by the sun (which only shines in the summer) in such a way that its crystals become much more coarsegrained than winter snow.
Another way to distinguish the annual layers is to note the dust concentrations. In the late winter/early spring when the wind is stronger than usual, significantly more dust (insoluble matter of various kinds) is carried in the air -- even from the Southern hemisphere and Asia -- and is deposited in the layers of snow in Greenland.
The third way annual layers can be distinguished is via the electrical conductivity of the layers.16 In the spring and summer when the sun is shining, nitric acid is produced in the stratosphere and enters the snow, but this does not happen in the winter.17 The acid in the spring/summer layer enables an electrical current to easily flow through that layer, but the relative lack of acid in the winter layer allows much less electricity to flow through that layer. So, as two electrodes mechanically run down the ice core the readout (mm by mm) of the resultant flows of electricity shows the successive years as a series of peaks (summer) and valleys (winter).
It is to a large extent the correlation and corroborating testimony of these three main methods of counting the annual layers in the GISP2 core which guarantees the validity of the ice core dating.22 The three methods have excellent correlation with each other down to 2500 m, that is, back to c. 57,000 BP.23 In the upper 2300 m (down to c. 40,000 BP) the correspondence of the three methods has been called "remarkable."24
In the lower half of GISP2 (1,678 meters to the bottom) where the dust is more concentrated, Ram and Koenig could scatter the laser light directly off the ice without having to melt it -- and could do this mechanically one mm at a time -- and feed the data directly into a computer. The readout showed the seasonal variations as a series of peaks and valleys. In this way, they were able to date the ice down to 2,849 meters at around 127,600 BP.
At c. 2,464 meters down, their dating of the volcanic ash found there (57,300 ± 1700 BP) agrees very closely with the Z2 layer of volcanic ash found in Atlantic sea cores which is dated 57,500 ± 1300 BP. At 2,808 meters down, their dating was c. 115,000 BP which was in essential agreement with the independent gas-age dating of c. 111,000 BP for that level.15 Although the ice below 2,850 meters may be disturbed, Ram and Koenig continued measuring via LLS both with 1mm and some 0.5 mm steps; and, this yielded an estimated age for the ice at the silty ice boundary of "at least 250,000 BP."
Dust layers with the bottom being volcanic ash.
Here's what happened as I see it by His grace & by His help:
The Bible testified to a mist that watered the whole earth; a global greenhouse.
It rained for the first time at the global flood. Fountains of the deep rose up from the earth.
What could cause that to happen that the Bible left out in detail?
All the asteroids that science had recorded, I would say that it happened at the same time of the global flood. This would cause tectonic plates shift, earthquakes and supervolcanoes ( like the one at Yellowstone ) as well as other volcanoes to erupt. ** That would attribute to your first layer of the ice shelf. **
The crater impacts on the moon would testify to being the cause of it moving slowly away from the earth the way it is. Since the moon controls the rise & fall of tides, then we can see why the mist was condensed into clouds to rain for the first time at the global flood. The impact craters on teh earth & on the moon, the pressure from the moon moving away from the earth and the impact on the earth, could very well attribute to the fountains from the deep rising up to add to the global flood.
Now imagine how long it would take for the dust to settle in an transitional atmosphere with chaotic weather patterns out of all of that as the planet is adjusting from being a global greenhouse to rapid varying changes in temperature in settling down to what we perceive is normal yearly & seasonal weather? Would there not be swift changes in warm & cold weather at the summit in this formation of the ice shelf as the fabled Ice Age was settling in? Would that not effect the assumed yearly or seasonal layering of the ice core? I would have to say yes.
Yeah, I know. There are other dating methods, but again, they are just as dubious when they do not account for the many variables of the global flood. Imagine a global flood and throwing all the fossil records out of whack because the fossilized marine life with fossilized whale bones would be dated older than the fossilized animal life by carbon 14 dating, and yet they were found together in mass graves in the same sediments on top of mountains at various spots around the world.
The reservoir effect would explain why the fossilized marine life would appear older than the fossilized animal life and thus support the idea that both fossils were buried at the same time on those mountains at the time when the global flood receded.
Where did all the water go after the global flood?
Hidden 'Ocean' Discovered Deep Underground Near Earth's Core
Vast ocean lays under Earth mantle, may be wellspring for world's oceans : SCIENCE : Tech Times
Just a side bar note for consideration as to why sincere seekers of the truth should take pause in regards to the evolution theory.
