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rhinoceros
beegoodbees
They date the skulls based on where it looks like it should fit into the preexisting model. This is not science. Dating fossils based on layers and dating layers based on fossils I also have a problem with.
That's what you want to believe because these skulls are indisputable evidence against Christian creation. Anyway, what you wrote is a lie. For example, the G-skull is this one. You can read about how it was dated here.
I said fossils, those skulls are not fossils are they?
Tommorrow, Nature will be publishing a new study of the Dmanisi fossil specimens
beegoodbees
I have no problem with evolution being taught if they would just say "some scientists believe" before hand instead of presenting it as fact.
cartenz
beegoodbees
I have no problem with evolution being taught if they would just say "some scientists believe" before hand instead of presenting it as fact.
So the reverse would be have to apply:
I have no problem with creation being taught if they would just say "some christians believe" before hand instead of presenting it as science.
Well without doing any research, off of the top of my head I believe the explanation is that reptiles sink rather quickly whereas mammals and birds float for a while first before sinking leaving more time for decomposition, scavenging and most importantly the sediment has time to settle before the mammals finally sink.
Just to be clear I don't claim to be able to prove creation or disprove evolution, my point is that evolution is not proven scientific fact but rather a hypothesis that cannot realistically be proven or disproven without a time machine. There are still a lot of unanswered questions. The first one being how did all of those fossils form in the first place? How did they get buried so quickly that they did not decompose which is what normally happens in nature.
beegoodbees
There is no provable way to date very old bones or anything else because there is no benchmark or control to compare against.
Potassium–argon dating, abbreviated K–Ar dating, is a radiometric dating method used in geochronology and archaeology. It is based on measurement of the product of the radioactive decay of an isotope of potassium (K) into argon (Ar). Potassium is a common element found in many materials, such as micas, clay minerals, tephra, and evaporites. In these materials, the decay product 40Ar is able to escape the liquid (molten) rock, but starts to accumulate when the rock solidifies (recrystallizes). Time since recrystallization is calculated by measuring the ratio of the amount of 40Ar accumulated to the amount of 40K remaining. The long half-life of 40K allows the method to be used to calculate the absolute age of samples older than a few thousand years
Argon–argon (or 40Ar/39Ar) dating is a radiometric dating method invented to supersede potassium-argon (K/Ar) dating in accuracy. The older method required splitting samples into two for separate potassium and argon measurements, while the newer method requires only one rock fragment or mineral grain and uses a single measurement of argon isotopes. 40Ar/39Ar dating relies on neutron irradiation from a nuclear reactor to convert a stable form of potassium (39K) into the radioactive 39Ar. As long as a standard of known age is co-irradiated with unknown samples, it is possible to use a single measurement of argon isotopes to calculate the 40K/40Ar* ratio, and thus to calculate the age of the unknown sample. 40Ar* refers to the radiogenic 40Ar, i.e. the 4040Ar produced from radioactive decay of 40K. 40Ar* does not include atmospheric argon adsorbed to the surface or inherited through diffusion and its calculated value is derived from measuring the 36Ar (which is assumed to be of atmospheric origin) and assuming that 40Ar is found in a constant ratio to 36Ar in atmospheric gases.
Magnetostratigraphy is a geophysical correlation technique used to date sedimentary and volcanic sequences. The method works by collecting oriented samples at measured intervals throughout the section. The samples are analyzed to determine their characteristic remanent magnetization (ChRM), that is, the polarity of Earth's magnetic field at the time a stratum was deposited. This is possible because volcanic flows acquire a thermoremanent magnetization and sediments acquire a depositional remanent magnetization, both of which reflect the direction of the Earth's field at the time of formation.
beegoodbees
A few skulls that look similar but different is far from a complete chain especially since some of them seem to be devolving at times. Where is the link between H and I? Where is the link between K and L?
drivers1492
reply to post by beegoodbees
I had a reply almost finished and hit the mouse reaching for coffee and left the page......so lets try again.
Well without doing any research, off of the top of my head I believe the explanation is that reptiles sink rather quickly whereas mammals and birds float for a while first before sinking leaving more time for decomposition, scavenging and most importantly the sediment has time to settle before the mammals finally sink.
If the layering we see is due to this why are the structure remains and stone tools or relics not in the lower layers. Since heavier was on the bottom first, then those items would be below the animal remains not above. There are no tools or structure remains found below ancient animal remains anywhere in the world. So I'm not sure how this could be true in any way. At the very least we should find a hint of something which we haven't or anything even close to it. Yet we do find early birds and mammals in strata among the dino strata. That means that it does happen outside of the proposed layering so we should find evidence of man in that strata as well would you not agree?
Just to be clear I don't claim to be able to prove creation or disprove evolution, my point is that evolution is not proven scientific fact but rather a hypothesis that cannot realistically be proven or disproven without a time machine. There are still a lot of unanswered questions. The first one being how did all of those fossils form in the first place? How did they get buried so quickly that they did not decompose which is what normally happens in nature.
I'm not asking you to prove anything only your opinions on the subject as they are different than mine. I do agree there are many questions that are not answered. How fossils form is well known by studying the fossils themselves and there are a variety of ways. I do think one issue with fossil formation is when people hear that they are buried quickly they have it in their minds that its done either instantly or within a day or two. Thats not the case at all. I had a cow that got out year before last and went up into the mountain for some reason. When I did finally find it she was dead and so far up in the woods there was no way for me to get to her and bury her. This summer I was in the same area and came across her remains. It was mostly buried some still on top and some was gone. The point is the bones were being covered and has the potential to fossilize. On a geologic timescale 2 years is quick. I suppose depending on how old you believe our planet to be would also affect if you consider this quick. Bones can lay for quite a while before they breakdown is my point so the "quick" time isn't really quick unless your looking at geologic time.
rhinoceros
beegoodbees
There is no provable way to date very old bones or anything else because there is no benchmark or control to compare against.
Disprove this method:
Potassium–argon dating, abbreviated K–Ar dating, is a radiometric dating method used in geochronology and archaeology. It is based on measurement of the product of the radioactive decay of an isotope of potassium (K) into argon (Ar). Potassium is a common element found in many materials, such as micas, clay minerals, tephra, and evaporites. In these materials, the decay product 40Ar is able to escape the liquid (molten) rock, but starts to accumulate when the rock solidifies (recrystallizes). Time since recrystallization is calculated by measuring the ratio of the amount of 40Ar accumulated to the amount of 40K remaining. The long half-life of 40K allows the method to be used to calculate the absolute age of samples older than a few thousand years
Then disprove this method:
Argon–argon (or 40Ar/39Ar) dating is a radiometric dating method invented to supersede potassium-argon (K/Ar) dating in accuracy. The older method required splitting samples into two for separate potassium and argon measurements, while the newer method requires only one rock fragment or mineral grain and uses a single measurement of argon isotopes. 40Ar/39Ar dating relies on neutron irradiation from a nuclear reactor to convert a stable form of potassium (39K) into the radioactive 39Ar. As long as a standard of known age is co-irradiated with unknown samples, it is possible to use a single measurement of argon isotopes to calculate the 40K/40Ar* ratio, and thus to calculate the age of the unknown sample. 40Ar* refers to the radiogenic 40Ar, i.e. the 4040Ar produced from radioactive decay of 40K. 40Ar* does not include atmospheric argon adsorbed to the surface or inherited through diffusion and its calculated value is derived from measuring the 36Ar (which is assumed to be of atmospheric origin) and assuming that 40Ar is found in a constant ratio to 36Ar in atmospheric gases.
Then disprove this method:
Magnetostratigraphy is a geophysical correlation technique used to date sedimentary and volcanic sequences. The method works by collecting oriented samples at measured intervals throughout the section. The samples are analyzed to determine their characteristic remanent magnetization (ChRM), that is, the polarity of Earth's magnetic field at the time a stratum was deposited. This is possible because volcanic flows acquire a thermoremanent magnetization and sediments acquire a depositional remanent magnetization, both of which reflect the direction of the Earth's field at the time of formation.
Then finally calculate the odds that all these three methods give the same estimate independently.
edit. quotes are from wikipediaedit on 30-10-2013 by rhinoceros because: (no reason given)
I don’t know why but he is so easy to listen to. He is right though creationism has no place in science.
rhinoceros
beegoodbees
A few skulls that look similar but different is far from a complete chain especially since some of them seem to be devolving at times. Where is the link between H and I? Where is the link between K and L?
The skulls don't necessarily (probably) represent just one lineage. With time and new discoveries, new skulls are added. Let me ask you this, if species are more-or-less static, then where are the 2 million year old skulls of Homo sapiens? Where are the 100 million year old giraffe bones? Where are all the old bones of contemporary species? Fossilization is a rare thing, but if contemporary species existed as they're now 100 million years ago, then surely for example at least one 100 million year old skull of some contemporary mammal such as a dolphin or a bear would have been uncovered already. But no such thing. Explain the missing bones.
AfterInfinity
reply to post by beegoodbees
How can you just shrug off his explanations when he gave you a very detailed rundown of exactly how the process operates? You just went, "Meh, I don't care."
That's not very professional at all. How do you expect us to take you seriously when you don't extend the same courtesy to our sincere efforts?
You make some good points. As far as the cow is concerned, even buried bones will decompose, that is why we don't find bones and fossils everywhere we dig. In order to become a fossil it has to be buried deep enough, fast enough to be protected from the decaying forces of the world. I can think of no circumstance that would create all of these fossils in certain layers only as opposed to being found almost everywhere or almost nowhere other than a large scale movement of water and or earth.
As for the tools and structures you mentioned, as I have already stated, anything found that does not fit the current model is ignored, hidden explained away by geological shifts or all of the above. Any such finds will most likely not be displayed or debated but rather locked away in the museum basement. Similar to what happens when fossils are found in the wrong layers or order.