For many people, radiometric dating might be the one scientific technique that most blatantly seems to challenge the Bible’s record of recent creation. For this. I appreciate the tone of our conclusion, how correct it is to look towards the Saviour in all things. I would not class myself as an active apologetic, and I am. Nov 24, · Posts about Radiometric dating Radiometric ages For a much more thorough presentation of radiometric dating, see Radiometric Dating: A Christian.
Is Dating Really Important? Index For This Page. I wish this page was unnecessary. Because of the distortions and lies spread by fundamentalists about scientific dating there is a need for a centralized source of information on the topic.
A few examples of such lies are presented at the very bottom of this page. For each dating or chronological method there is a link in the box at right to take you to that section of this page. There, you will find a brief description of the method, plus links to take you to other webpages with more extensive information.
Dating is not necessary to demonstrate that evolution is a fact. Chronological sequence is all that is really required. However, human beings love to see factual precision, and we want to know how old something is. Please remember that all dating methods, even those termed "absolute," are subject to margins of error.
We say the Earth is 4. That is a very small amount of possible error range. There are 20 methods shown here. Modern studies almost always use two or more methods to confirm dating work and to build confidence in the results obtained. Overview of Scientific Dating Methods. 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. Many of these links also appear where appropriate below.
Back to Page Index. Steno's Law - The Law of Superposition: A bit of history about Nicolas Steno, who formulated the Law of Superposition.
James Hutton and William Smith advanced the concept of geologic time and strengthened the belief in an ancient world. Hutton, a Scottish geologist, first proposed formally the fundamental principle used to classify rocks according to their relative ages. He concluded, after studying rocks at many outcrops, that each layer represented a specific interval of geologic time.
Further, he proposed that wherever uncontorted layers were exposed, the bottom layer was deposited first and was, therefore, the oldest layer exposed; each succeeding layer, up to the topmost one, was progressively younger.
The Major Divisions of Geologic Time are shown here, arranged in chronological order with the oldest division at the bottom, the youngest at the top. Relative Time, Superposition and Cross-cutting Relationships: Geologic intrusions, faults and unconformities are explained and pictured. Stratigraphy is the study of strata, or layers. Specifically, stratigraphy refers to the application of the Law of Superposition to soil and geological strata containing archaeological materials in order to determine the relative ages of layers.
Cross-dating is a technique used to take advantage of consistencies in stratigraphy between parts of a site or different sites, and objects or strata with a known relative chronology. A specialized form of cross-dating, using animal and plant fossils, is known as biostratigraphy.
Correlation means matching the order of geologic events in one place with the order of geologic events in another place. By far, the most widespread method of correlation uses fossils Geologic Time: Keyed to the relative time scale are examples of index fossils, the forms of life which existed during limited periods of geologic time and thus are used as guides to the age of the rocks in which they are preserved.
William "Strata" Smith, a civil engineer and surveyor, was well acquainted with areas in southern England where "limestone and shales are layered like slices of bread and butter. Using these key or index fossils as markers, Smith could identify a particular layer of rock wherever it was exposed.
Because fossils actually record the slow but progressive development of life, scientists use them to identify rocks of the same age throughout the world. See more information about "Strata" Smith and his original geologic map of England. Information about Simon Winchester's delightful biography of Smith, The Map That Changed the World is available at amazon.
Click on the map to see a larger version. The Principles of Dendochronology. Dendrochronology -- Tree Rings: Tree-Ring dating is based on the principle that the growth rings on certain species of trees reflect variations in seasonal and annual rainfall. Trees from the same species, growing in the same area or environment will be exposed to the same conditions, and hence their growth rings will match at the point where their lifecycles overlap.
Earth's oldest living inhabitant "Methuselah" at 4, years, has lived more than a millennium longer than any other tree. See Oldest Living Organism.
The Sheffield Laboratory now has a continuous master sequence for England going back to about BC. This is made up of numerous regional tree-ring chronologies, particularly in the medieval and post-medieval periods, for which the laboratory now has more than reference chronologies from many areas. The Ultimate Tree-ring Pages: This really must be the ultimate web resource for this topic. You will find information about tree-rings, current research, and examples of practical applications of this science.
There are over radiocarbon dating laboratories around the world producing radiocarbon assays for the scientific community. The Carbon14 technique has been and continues to be applied and used in many, many different fields including hydrology, atmospheric science, oceanography, geology, palaeoclimatology, archaeology and biomedicine. An excellent series of short movies take students through a course of explanation and demonstration of C14 methods. Oxford Radiocarbon Accelerator Unit.
About research in radiocarbon methodology. Includes many protocols for adjusting results to account for fluctuations in atmospheric C For learning more about radiocarbon methods, laboratories and databases. An excellent article about the process and its limitations, written without scientific jargon.
Radiometric Dating -- A Christian Perspective: Wiens, Los Alamos National Laboratory. Also discusses other dating methodologies. This article should be a "must read" for any person interested in factualy accurate information on dating methods. Radiometric Dating Film Clips: By comparing the proportion of K to Ar in a sample of volcanic rock, and knowing the decay rate of K, the date that the rock formed can be determined. A series of movie clips walks you through the process.
Gives the simple principles of how the process works. More on the basics from the United States Geological Service.
Discussed six isoptopes commonly used to date very ancient rocks. Reliability of Radiometric Dating. Similar to this webpage, it presents many links to articles about radiometric dating and the age of the earth, some of which I do not list here for want of space.
Isochron methods avoid the problems which can potentially result during radiometric testing. Be sure to see An Animated Isochron Diagram , or, Watching a Rock Age on an Isochron Diagram. These are very nice pages from www. Age of the Earth: Radiometric Dating from The Evolution Evidence Page. The most compelling argument for an age of the earth of 4. These tests have been performed on what are thought to be the earth's oldest surviving rocks, meteorites, and moon rocks. These tests have consistently given the same ages for each of these objects.
Examples of a number of consistent dates derived from different methods are given. Isotopes, Radiometric Dating and the Geologic Time Scale: A short but clear explanation about radioactive isotopes commonly used for determining ages of rocks with graphics and putting numbers on the geologic time scale, extending it back before the occurance of abundant index fossils.
This is a relatively new method intended to to improve the precision of uranium and thorium istopy methods. It excludes contamination and weathering of travertines and makes possible more precise dating of thin deposits of secondary carbonates. No web-based resource for this method is available. New Electron Microprobe Determines Ages of Rocks: A team of University of Massachusetts geologists is exploring a new way to determine the ages of ancient rocks, and refining our understanding of the timing and rates of the geologic events that have shaped the planet.
The new method offers greater efficiency, and access to a much more detailed geologic record than current dating methods. Obsidian hydration dating is based on the fact that a fresh surface is created on a piece of obsidian in the tool manufacturing, or flintknapping, process. Obsidian contains about 0. When a piece of obsidian is fractured, atmospheric water is attracted to the surface and begins to diffuse into the glass.
This results in the formation of a water rich hydration rind that increases in depth with time. The hydration process continues until the fresh obsidian surface contains about 3. This is the saturation point. The thickness of the hydration rind can be identified in petrographic thin sections cut normal to the surface and observed under a microscope. A distinct diffusion front can be recognized by an abrupt change in refractive index at the inner edge of the hydration rind.
These fronts or rinds of hydration are more dense than the unhydrated inside, and the unhydrated zone has different optical properties.Then a adting days later, Satan tempts Eve in the garden. Accessed October 26, In the beginning God created the heavens and the earth. Think of a murder trial where several expert witnesses Christian dating radiometric called to produce evidence. Fortunately, the lifetime of a star is related to its mass.