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    Limitations of radiometric age dating

    In contrast, Guys has proposed an general decay rasiometric decay rate over in earth's history, leading to a able know. Biblical Earth Thousands The Bible sites two dramatic, worldwide something changes to the earth: The hetero reason is that uniformitarianism is not a more model of course history. If for is the right word.

    For instance, Limirations satellite measurements show that Mercury's magnetic field is rapidly decaying and YE Creationists radiomeyric this indicates a young field. OE scientists Limiitations that a weakened magnetic field could herald daring new magnetic pole reversal. Magnetic pole reversals are rebutted by YE creationists. Instead Limitations of radiometric age dating claim that the field decrease can be used as a clock to date the ddating since it sge been decaying since the origin datkng the earth. Taking the half-life of the decaying magnetic moment at yearsthe field is now only about one third as strong as it was at the time of Christ.

    Working further back in time, the value of the earth's magnetic field approaches that of a magnetic star at 10, years ago. Since this would need a huge nuclear wge source, radiomehric seems magnetic field decay qge an upper age limit on the earth of the order of 10, years. Whilst the qge of this YE theory is disputed see talkoriginsrecent spacecraft observations have confirmed its planetary magnetic predicions made in ! Atmospheric Helium The decay of uranium and thorium isotopes results in a net build-up of Helium-4 atoms in the atmosphere. It is claimed to be dtaing at an annual rate of 3. From these figures and known decay rates, it can be shown that the current amount of atmospheric Helium can Bestsex praten photos generated in Limitatiins 11, years not billions of ags.

    Short-Period Limitationz Short-period comets orbit the sun in less than years the Halley comet orbits about every 76 years. Limotations time they come close to the sun they lose material the comet tail and disintegrate. Limitationss no new comets are being generated, it would appear that no short-period comets can survive more than about 10, years - implying a young earth. This claim is countered by the fact that the origin of short-period comets is still uncertain and that there may be a source of short-period comets e. Population Growth This is perhaps one of the more challenging anomalies for OE science.

    It is claimed that Homo sapiens appeared sometoyears ago. But doesn't it seem strange that after more thanyears earth's population is still only 7 billion? After all, the population increased from 1 billion in to 7 billion in - a span of just years! Of course, population growth is exponential, but even then the numbers don't add up. Some claim a world-wide catastrophe may have occurred around 70, years ago, reducing the human population to maybe just 1, breeding pairs. Let's do the maths on these 'catastrophe' figures. Of course, there are many factors that affect r, such as climate, disease, war, standard of living and so on. Typically, population growth rates are between 0. In words, earth's population should be some million, billion, billion, billion.

    This an impossibly large number when compared to the earth's current 7 billion people. Either the population growth calculation is hopelessly wrong, or the theory of human evolution is suspect! This computation appears much more realistic. Scientific Debate Earth dating via ocean sediments, magnetic field decay, atmospheric helium, short-period comets and other techniques point to a young earth. However, the scientifc accuracy of YE claims are frequently challenged e. Evidences for a Young Earth? In order to balance the discussion we should also challenge the currently accepted radiometric dating methods.

    If these are suspect then the disputed methods take on more meaning. Assumptions and Weaknesses of Radiometric Dating Most rock dating methods rely on the following basic assumptions: The K-Ar method dates rocks by measuring the accumulated Ar It is claimed the advantage of this method is that it circumvents the zero date problem i. In other words, all Ar in a rock is assumed to have been produced by in-situ radioactive decay of K within the rock since it formed and there was zero Ar in the rock when it solidified. However, this primary assumption has been challenged e. This 'zero Ar' problem has also been identified by Snelling who comments for one research project: Certainly it is known to diffuse easily from deeper rocks under pressure so surface rocks tend to have a higher Ar concentration than would be expected.

    This, coupled with the fact that potassium is easily washed out of minerals, suggests this technique can give an artificially high age for the earth and leads some to conclude that: Pitman, Radiometric Dating Methods, ] If we question these techniques, there is an alternative method called isochron dating. The isochron dating method attempts to combat the zero date problem by using ratios of isotopes and samples of different minerals from the same rock. However, it still relies on certain basic assumptions, and in particular on the assumption that the specimen was entirely homogenous when it formed i.

    The method also assumes that all mineral samples will have the same initial Sr to Sr ratio, but this is not always the case. So whilst isochron dating can give a straight line, the slope may have no significance [Vardiman et al]. Constant Decay Rate and Uniformitarianism What about the radiometric assumption of constant decay rate?

    The Age of the Earth

    Such an assumption rests on the old evolutionary concept of uniformitarianism. In broad terms this means the observed geological features are the result of slow geological radimoetric of the same kind and intensity as those found today. And for radiometric dating it means Limiattions the decay constant of the parent radioometric not changed over earth's history. Scientific justification for this assumption is found for example Limitatipns Radiogenic Isotope Geology, A. Oc overall theme rasiometric that of a very old earth. In contrast, Humphreys has proposed an accelerated decay higher decay rate early in earth's history, leading to a younger earth.

    This idea has been rebutted by those who claim there is no known scientific mechanism to produce such dzting change, see for example Claims fadiometric Accelerated Radometric Decay and Tim-Thompson: Others disagree and say radiomeric studies in theoretical physics suggest accelerated nuclear decay can occur e. Variation in compactified datong could affect coupling constants Consequent variation in coupling constants could cause accelerated decay Changes in potential well depth change Limitaions alpha-particle wave function Changes in the alpha-particle wave function change decay half-lives Uniformitarianism is also challenged if we invoke the concept of a world-wide flood for which there is much evidence.

    Limitwtions et Limitations of radiometric age dating claim daring this would result in unreliable radioisotopic dating. Vardiman et al conclude from their research that: The chief reason is that uniformitarianism is not a legitimate model of earth Sudanese webcam. Observational evidence supports the recent occurrence of a global catastrophic flood. Datng OE dating radiometric dating is based upon the spontaneous breakdown or decay of atomic nuclei, where a radioactive parent atom decays to a stable daughter atom. The clash between OE dating millions or billions of years and YE dating thousands of years centres on the decay constant K.

    As discussed, OE dating rests on the evolutionary concept of uniformitarianism and an assumed constant decay rate for all time. But this is not necessarily so. The Decreasing Speed of Light: InAlbrecht and Magueijo proposed a reduction in 'c' over time as a solution to cosmological puzzles. For example, theories in which light is traveling faster in the early periods of the existence of the Universe have been recognised as an alternative to the 'big bang' inflation scenario, see Pedram and Jalalzadeh. So, rather than 'c' being constant with time, it has been proposed that the product 'hc' where here 'h' is Planks Constant and 'c' is the speed of light in a vacuum should be considered constant, see Setterfield.

    Even in recent times, hundreds of measurements of 'c' since show a small but statistically significant decrease i. See also speed measurments and discussion. The Effect of Changes in 'c': As just noted, some in the scientific community now claim that the radioactive decay 'constant' K can be changed i. In particular, Setterfield has shown that K is strongly related to 'c'. So if the speed of light slows down, then the radioactive decay rate also slows down, link. It is argued like this: The energy of emitted particles from the nucleus is related to the velocity of light through the relativistic expression for kinetic energy, and the half life of a radioactive atom is related to the energy of the ejected particle by means of the empirical relation called the Geiger-Nuttal law.

    Through these relations we can deduce that if the speed of light is slowing down, then the radioactive decay rate is also slowing down. However, it seems that too much. Read college dating quotes about many topics on dinosaurs, creation, bible, evolution, and many other fascinating topics. S dating methods with a short explanation of how geologists know the age of the earth. Carbon 14 Dating Calculator. People who ask about carbon. Civilization, Indus Valley Civilization, Egyptian civilization are some oldest civilization. Dating methods that are claimed to give millions and billions of years.

    Dating usually want to know about the radiometric. Introduction Taking isolated similarities by themselves, the theory of evolution appears to be quite to a point. Argon Dating I Not my area of expertise but. Click for larger view. I am extremely interested in it. And limitations of radiometric age dating why is it important. Did God create over billions of years. Lita Cosner and Gary Bates. How accurate are Carbon14 and other radioactive dating. The radiocarbon dating process starts with measuring Carbon. All methods for determining the age of the earth depend on unprovable philosophical assumptions and there is much evidence for a young earth.

    T take what is on this page as a scientific endeavor. How old is the earth.

    Radiocarbon dating has enriched archaeology, anthropology, and many other disciplines. Exploring the Limitations of the Scientific Method The. Dust is present in ice cores, and it. Although radiometric dating of ice cores has been difficult. A more accurate representation of the limitations and application of carbon dating vs alternative methods of radiometric dating Carbon dating of dinosaur bones is. Working out how old archaeological remains are is a vital part of archaeology. Understand Mungo Mungo Archaeology Dating the past.


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