Primary source references As a preface to this document, I want to point out that it is a shame that we have to continue to refute the same arguments that evolutionists keep bringing up over and over again in their attempts to argue against the fact of creation, which fact has been well established since the day the earth was created ex nihilo several thousand years ago. It is also a shame that the masses have bought all this based on some circular reasoning about fossils, where fossils tend to be found buried, similarities between various life forms, the presence of certain decay products in rocks, and other inherently speculative arguments about the past, based on phenomena that exist in the present. If I hope to accomplish anything, it will be to simply encourage critical thinking. One must get past the arguments ad populum that its popularity counts for something , ad hominem that if you attack the person making the argument, this counts for something , and especially ad baculum that there are people who have the clout to decree it as true , to ask the key questions and challenge the unsubstantiated assumptions and thinking of those who would hold to the evolution position. Today there are an increasing number of anti-creationist authors who are producing books and periodicals that make this relatively brief presentation insufficient to deal with all the points in dispute. Those defending creation today who don’t have the time to devote their life’s study to gaining expertise in all fields of inquiry must principally be prepared to think critically, logically, and challenge unsubstantiated assumptions made by these people.
The science of studying fossils
There are lots of ways to guesstimate ages, and geologists knew the earth was old a long time ago and I might add that they were mostly Christian creationist geologists. But they didn’t know how old. Radiometric dating actually allows the measurement of absolute ages, and so it is deadly to the argument that the earth cannot be more than 10, years old.
Radiometric methods measure the time elapsed since the particular radiometric clock was reset. Radiocarbon dating, which is probably best known in the general public, works only on things that were once alive and are now dead.
Older fossils cannot be dated by carbon methods and require radiometric dating. Scientists can use different chemicals for absolute dating: The best-known absolute dating technique is carbon dating, which archaeologists prefer to use.
Updated 8 January c Introduction In a related article on geologic ages Ages , we presented a chart with the various geologic eras and their ages. In a separate article Radiometric dating , we sketched in some technical detail how these dates are calculated using radiometric dating techniques. As we pointed out in these two articles, radiometric dates are based on known rates of radioactivity, a phenomenon that is rooted in fundamental laws of physics and follows simple mathematical formulas.
Dating schemes based on rates of radioactivity have been refined and scrutinized for several decades. The latest high-tech equipment permits reliable results to be obtained even with microscopic samples. Radiometric dating is self-checking, because the data after certain preliminary calculations are made are fitted to a straight line an “isochron” by means of standard linear regression methods of statistics.
The slope of the line determines the date, and the closeness of fit is a measure of the statistical reliability of the resulting date. Technical details on how these dates are calculated are given in Radiometric dating. Here is one example of an isochron, based on measurements of basaltic meteorites in this case the resulting date is 4. Reliability of radiometric dating So, are radiometric methods foolproof?
Accuracy of Fossils and Dating Methods
My research focuses mainly on carnivore functional morphology. To date we have focused on using 3D dental microwear to evaluate the degree of hard object feeding in cats and bears. Directly linking radiocarbon ages with isotopic results permits the reconstruction of diet and ecology of the species and will help determine if they were influenced by changing climatic conditions over the past 50, years.
New specimens from a single deposit from Project 23 are currently being examined.
dating techniques Methods of estimating the age of rocks, palaeontological specimens, archaeological sites, etc. Relative dating techniques date specimens in relation to one another; for example, stratigraphy is used to establish the succession of fossils.
My friends call me Ape Jaw Evan. Click here to read about me and other media myths, frauds, and lies. The Theory of Evolution is not a scientific law or a law of biology. Failure to meet only one challenge proves the law is wrong. This web page will prove that the Theory of Evolution fails many challenges, not simply one. The Theory of Evolution will never become a law of science because it is wrought with errors. This is why it is called a theory, instead of a law.
Everything Worth Knowing About … Scientific Dating Methods
Indeed, this literature abounds with direct and indirect references to a Deity or Creator, and citations of the Bible are not uncommon for example, 22 , 77 , 90 , 91 , 96 , 97 , 99 , Both of these propositions are disproved by a vast and consistent body of scientific evidence. The ages of the various rock formations, the Earth, the Moon, and meteorites have been measured using radiometric also called isotopic dating techniques — atomic clocks within the rocks themselves that, if properly used, reveal the elapsed time since the rocks formed.
There is overwhelming scientific evidence that the oldest rocks on the Earth are 3. In addition, these same dating techniques have conclusively verified and quantified the relative geologic time scale Figure 1 , which was independently deduced by stratigraphers and paleontologists on the basis of nearly two centuries of careful scientific observations of the sequence of sedimentary rock units and fossils.
Everything Worth Knowing About Scientific Dating Methods This dating scene is dead. The good dates are confirmed using at least two different methods, ideally involving multiple independent labs for each method to cross-check results. Sometimes only one method is possible, reducing the confidence researchers have in the results. Methods fall into one of two categories: These methods — some of which are still used today — provide only an approximate spot within a previously established sequence: Think of it as ordering rather than dating.
So, how do we know how old a fossil is? There are two main methods determining a fossils age, relative dating and absolute dating. Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages. Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.
Relative Dating The majority of the time fossils are dated using relative dating techniques.
Biostratigraphy: One of the first and most basic scientific dating methods is also one of the easiest to understand. Layers of rock build one atop another — find a fossil or artifact in one layer, and you can reasonably assume it’s older than anything above it.
Measurement of N, the number of 14 C atoms currently in the sample, allows the calculation of t, the age of the sample, using the equation above. The above calculations make several assumptions, such as that the level of 14 C in the atmosphere has remained constant over time. The calculations involve several steps and include an intermediate value called the “radiocarbon age”, which is the age in “radiocarbon years” of the sample: Radiocarbon ages are still calculated using this half-life, and are known as “Conventional Radiocarbon Age”.
Since the calibration curve IntCal also reports past atmospheric 14 C concentration using this conventional age, any conventional ages calibrated against the IntCal curve will produce a correct calibrated age. When a date is quoted, the reader should be aware that if it is an uncalibrated date a term used for dates given in radiocarbon years it may differ substantially from the best estimate of the actual calendar date, both because it uses the wrong value for the half-life of 14 C, and because no correction calibration has been applied for the historical variation of 14 C in the atmosphere over time.
The different elements of the carbon exchange reservoir vary in how much carbon they store, and in how long it takes for the 14 C generated by cosmic rays to fully mix with them. This affects the ratio of 14 C to 12 C in the different reservoirs, and hence the radiocarbon ages of samples that originated in each reservoir.
10 Methods Scientists Use to Date Things
My picture showed a water tap dripping into the cylinder. It was clearly marked so my audience could see that it held exactly ml of water. The diagram also showed that the water was dripping at a rate of 50 ml per hour. How did you work that out? Every dating method that scientists use works exactly the same way.
Absolute dating is used to determine a precise age of a rock or fossil through radiometric dating methods. This uses radioactive minerals that occur in rocks and fossils almost like a geological clock.
By Eric Hovind on May 5, in Articles , Beginner Whenever the worldview of evolution is questioned, the topic of carbon dating always comes up. Here is how carbon dating works and the assumptions it is based upon. How Carbon Dating Works Radiation from the sun strikes the atmosphere of the earth all day long. This energy converts about 21 pounds of nitrogen into radioactive carbon This radioactive carbon 14 slowly decays back into normal, stable nitrogen.
Extensive laboratory testing has shown that about half of the C molecules will decay in 5, years. This is called the half-life. In theory it would never totally disappear, but after about 5 half-lives the difference is not measurable with any degree of accuracy. This is why most people say carbon dating is only good for objects less than 40, years old.
Nothing on earth carbon dates in the millions of years, because the scope of carbon dating only extends a few thousand years.
How dating methods work
Why almost all scientists believe in evolution: It is impossible to prove that the theory of evolution is absolutely true. The theory maintains that plant evolution, animal evolution and the major geological changes to the earth unfolded over billions of years. Thus, the full theory cannot be demonstrated in the laboratory. Processes like the rise of mountains and erosion are simply too slow to be observed during one person’s lifetime.
Elements of the theory e.
Overview of Scientific Dating Methods Dating the Past: This is an excellent overview of dating methodologies, and is a chapter in a textbook on Archaeology. You may find it useful for the clear definitions, and for excellent links on a variety of topic.
Shea Anthropology Department, State University of New York at Stony Brook The origin of modern humans and the fate of the Neanderthals are two of the most hotly debated topics in paleoanthropology Stringer Once seen as dull-witted cavemen, new evidence suggests Neanderthals were intelligent, adaptable, and highly effective predators. Although many see Neanderthals as our possible ancestors, it is increasingly clear that they competed with early modern humans for tens of thousands of years in Europe and the Near East.
New research in Africa, Europe, and Asia suggests that the abrupt disappearance of the Neanderthals and the sudden appearance of early anatomically-modern humans throughout much of Western Eurasia after 47, BP is more than a coincidence. The last fifteen years in particular have seen flourishing scientific advances in areas such as improved radiometric dating techniques and the recent recovery of Neanderthal DNA.
These are making it increasingly clear that the Levantine Neanderthals and early modern humans were probably different species, indirectly competing with each other in the same ecological niche.