Science is divided into three general categories: hard science, soft science, and historical science. Hard science predicts results that can be tested and repeated. Just because a scientist uses measurements doesn't mean he is doing actual science. Soft sciences are the study of people and sometimes animals such as paleontology, archaeology, anthropology, psychology, and sociology. Historical science may use the numbers from radiometric dating and computer modeling, but it is not predicting any kind of result and cannot be tested or repeated, so it is merely using numbers from the present to explain the past. Neither soft sciences nor historical sciences are actually science; they are the informed telling and interpreting of stories. The archaeologist Heinrich Schliemann studied the presumably mythological story of Homer's Iliad and discovered the site of the city of Troy. Historical scientists, both evolutionists and creations, use stories to explain the evidence we see in the rocks, whether it is the layers (strata) of the rocks in the Grand Canyon, radiometric dating, computer models or the Ice Age, or the archaeology of Bible lands. Biblical creationists, however, use the Bible as their foundation, and it is an eyewitness account. The first chapters of Genesis were actually written by Adam, Shem, and Noah, who witnessed the events and even archaeologists prefer to make their conclusions based on written accounts rather than radiocarbon dating because of how many anomalies, or inconsistencies, are found in the numbers (Answers; p. 77).
Radiometric dating is touted as proving dates irrefutably, but most laymen don't even know what radiometric dating measures. As a result of this ignorance, we are not in a position to question the conclusions that evolutionary scientists come to.
Carbon dating measures anything that was once alive whether wood, coal, diamonds, bone, or wool. Sedimentary rocks have no way of being measured unless there are fossils in them that still contain carbon. All other radiometric dating methods are done on igneous rocks because when molten rock cools, it is said to be formed. That is the age that radiometric dating is supposed to be determining. It can be compared to baking a cake: when the batter is liquid, it cannot be said to have been made; not until it solidifies in the baking process is the cake formed.
What does radiometric dating measure? First, a brief chemistry lesson. I learned in high school that the atomic number of an atom tells us how many protons are in the nucleus. The atomic weight of an atom is a way of measuring how much the neutrons, protons, and electrons weigh all together. Chemistry, in its simplest form, says there are the same number of protons inside the nucleus as there are electrons outside. Sometimes, however, that gets out of whack and an element will have the wrong number of protons, neutrons, or electrons. It is then called an isotope. However, it is now out of balance. When it is out of balance, it is radioactive--it is unstable. It wants to stabilize and get into balance by losing the extra particle. This process is called radioactive decay (Sarfati, p. 337).
Radiometric dating measures how much unstable radioactive parent isotope is present relative to the stable daughter. There are several different materials that may be measured:
Potassium breaks down into Argon
Rubidium breaks down into Strontium
Uranium and Thorium break down into Helium and Lead
Samarium breaks down into Neodynium (Rock Solid Answers; p. 186)
Carbon dating is completely different from radiometric dating in that, instead of measuring how much daughter element has been created, it measures how much parent is still remaining. When cosmic rays that make it through the earth's magnetic field zap nitrogen atoms in the atmosphere, they are turned into Carbon-14, rather than the stable Carbon-12 that is the basis of life on earth. Every living organism consumes the C-14 through the air and through consuming plants that have breathed it in. At the moment of death, the C-14 starts to break down into C-12 (Answers; p. 75-76). In both types of dating, the scientists are measuring the ratio of unstable parent to stable daughter. They are very good at it and can measure it to the molecule. But what does this have to do with the age of rocks?
Scientists have discovered that in the present each unstable parent breaks down at a steady rate. It is called the half-life of the isotope because half of the parent material will break down in that amount of time. Of whatever is remaining, half of that will break down in the next period of time, and so forth (Answers; p. 76-77). Given that, theoretically, you should be able to measure the starting point--when the rock solidified or the animal or plant died--and thus get an age. Unfortunately for scientists and the conclusions they would like to draw, this requires making assumptions--telling stories--to make the information usable for their purposes.
Assumption #1--There was no daughter element in the rock when it was formed.
Assumption #2--Neither parent nor daughter has been altered in any way except radioactive decay since it was formed. The rock is a closed system with no outside influences.
Assumption #3-- The rate of decay that we see today has not changed since the rock was formed. (Rock Solid Answers; p. 186)
Creationists have always seen problems with Assumptions #1 and 2 and now we are finding evidence that shows problems with Assumption #3, as well.
The image often used to help explain how radiometric dating works is that of an hourglass. The space at the top is the starting point with the unstable parent isotope, the space at the bottom is the daughter and the channel through which the sand passes is the decay process. If we come upon an hourglass that is already running (as we do when we measure the isotopes in a rock) we don't know if there was any daughter when it was formed. We don't know if someone took the top off and added more parent or daughter to the system after it started running. We also don't know just how firm that channel is allowing only a certain number of grains through at a time (Sarfati; p. 378).
We now know that there are all kinds of variables that lead to what are called anomalies. Dr. Andrew Snelling in Rock Solid Answers references college level geology textbooks and their admission that every one of the three assumptions has problems:
Concerning Assumption #1--Geologists know that often daughter isotopes are present in the magmas even before they cool, meaning that, for their purposes, there would be more daughter than could be accurately compared to the parents, making the apparent age too great.
Concerning Assumption #2--"Both parent and daughter isotopes easily migrate out of and/or into rocks and their constituent minerals" (Rock Solid Answers; p. 188)--meaning that the rock is not a closed system, both parent and daughter may come and go, and we can make no conclusion on how old the rock is given the information discovered when testing those rocks.
Concerning Assumption #3--Heat makes radioactive decay speed up, both from hot ground water and volcanic sources.
Given this information written by secular geologists, the logical conclusion is that no rock can be accurately radiometrically dated since we never know what processes the rock on our hand has gone through (Rock Solid Answers; p. 188).
Do we have actual evidence of inaccurate ages based on radiometric dating? Heaps!
A rock from Mt. St. Helens that cooled in 1986 was radiometrically tested in 1996 and given a date of 350,000 years old (Rock Solid Answers; p. 194).
A rock from a lava flow in New Zealand that cooled in 1954 tested as being 3.5 million years old! (Solid Rock Answers; p. 194).
Wood found in Australia buried by a lava flow (it was charred, showing it was there before the lava) was carbon dated at 45,000 years old while the lava was dated with Potassium-Argon dated at 45 million years old (Sarfati; p. 385).
The Grand Canyon has igneous rocks at the very bottom of the canyon, with a mile of sedimentary rocks layered on them followed by a recent lava flow that actually poured down over the north rim into the Colorado River. The basement rocks down at the river are dated 715 million to 1.7 billion years old depending on the method used. The lava flow on the rim ranges from 100,000 years to 2.6 billion years old, depending, once again, on the method used. Aside from the fact that, if the dating systems were accurate, the same rocks would indicate the same age, no matter what method was used, the rocks on top are dated billions of years earlier than the rocks at the bottom. This is not only illogical, but goes against a law of geology and archaeology that says that whatever is lower in the layers is older than whatever is higher (Grand Canyon; Monument to Catastrophe; p. 126).
Carbon dating, which measures previously living things, has a very short half-life, only 5,730 years. Since half the C-14 will break down into C-12 in that time, by the time there is no C-14 left, the material would be a maximum of 50,000 years old (Answers; p. 77). Even with a mass spectrometer, which can measure extremely minute quantities, the maximum possible measurable age would be only 250,000 years (Lubenow; p. 281-2). However, there is no fossil anywhere, all the way down to the oldest Cambrian rocks that has as little as 1/1000% of C-14, the smallest part a mass spectrometer can measure. They all have far more, indicating that they are much younger than 250,000 years old, even though the evolutionary scientists think they are 600 million years old! (Lubenow; p. 128). Geophysicist Dr. John Baumgardner tested ten different coal samples. Coal is presumed to have formed from compressed peat bogs over millions of years. There should be no C-14 in any sample. Yet not only did all the samples show appreciable amounts of C-14--well above the measuring capability of a mass spectrometer--but they all showed similar ratios of C-14 to C-12. This implies that all the organisms that formed the coal died recently and about the same time--such as when the Flood wiped out all the rooted plant life (Sarfati; p. 387)
Addressing the issue of C-14 in the atmosphere, we have scientific information and the Biblical account to compare to each other to explain why the ages given by carbon dating seem so old. To recap: Assumption #1 says there was no daughter isotope in the sample. This doesn't apply to carbon dating since every life form has C-12 in it. Assumption #3 says that the decay rate has never changed. We can guess at it, but we are not going to address this assumption.
Assumption #2 says that neither parent (C-14) nor daughter (C-12) has been affected in any way. That is the assumption we are going to address.
C-14 is formed when cosmic rays entering the atmosphere hit Nitrogen atoms and change the N-14 into C-14. Here are some facts about cosmic rays:
1--The sun is not uniformly active. When it is burning hotter, such as when it has more solar flares, more cosmic rays are emitted.
2--Magnetic fields deflect cosmic rays from entering the earth's atmosphere.
3--As the earth goes on its journey through the solar system, it goes in and out of magnetic fields.
4--The earth's own magnetic field is measurably decreasing in strength, which means more cosmic rays are getting through now than in the past. (Answers; p. 78)
Put these together and we see that the rate of C-14 in the atmosphere is going to change over millenia and even from year to year!
Other things that affect the ration of C-14 to C-12 in the atmosphere are:
1--The burial of so much living material during the Flood. Suddenly, there was almost no C-12 in the biosphere, while C-14 was still being produced in the upper atmosphere (Answers; p. 78).
2--Volcanoes spit out carbon dioxide that has had the C-14 already broken down. There was huge amounts of volcanism during the Flood that would have increased the relative amount of C-12. We can guess at or do computer modeling to see if #1 would balance #2, but we really have no way of knowing for sure.
3--Plants don't like C-14 so when they take in CO2, the ratios measured will be higher in C-12 and appear older than they are, compared to animals which are both eating the plants and breathing in the C-14.
4--Before the Industrial Revolution when CO2 depleted of C-14 began being belched into the atmosphere, the C-14/C-12 ration would have been higher, making something only 400 years old appear even older when compared to sample of today.
5--Since the explosions of multiple atomic bombs, a new isotope, CO2-14 has increased making younger items (since the 1950s), which are our baseline, appear younger compared to an item of known age even from as recently as 100 years ago (Answers; p. 77).
Conclusion: It is impressive that modern scientists have been able to build machines that measure the number of molecules in a material. Their technical knowledge and ability is not to be questioned. The conclusions they come to, however, based on assumptions we have seen are not supported by the facts, are far from scientific and do not even match the evidence. A two billion year difference in rock ages is not simply not in the ballpark, it is just totally unhelpful. One is left with the impression that you could pick any number you wanted out of a hat and it would do. The Bible, on the other hand, is an archaeological record that has been supported from multiple ancient records as being accurate. Our foundation should not be on the numbers, but in the Creator who made them.
1. The Answers Book; Don Batten, ed.; Master Books; 1990.
2. Grand Canyon; Monument to Catastrophe; Steven A. Austin, ed.; Institute for Creation Research; 1994.
2. Lubenow, Marvin L.; Bones of Contention; Baker Books; Grand Rapids, MI; 2004.
3. Rock Solid Answers; Mike Oard and John K. Reed, eds.; Master Books; 2009.
4. Sarfati, Jonathan; Refuting Compromise; Master Books; 2004.