This could account for the observed distribution of potassium-argon dates, even if the great sedimantary layers were laid down very recently. The results indicated ages of less than one half to almost three million years old, all from eleven year old rock. If you shake the hourglass, twirl it, or put it in a rapidly accelerating vehicle, the time it takes the sand to fall will change. I suppose that Baugh and Mastropaolo probably labeled him an evolutionist astrophysicist. So what do the observational scientists in the radiometric dating lab do? One possible source of problems is if a rock contains some minerals that are older than the main part of the rock. This is more difficult, and this is the isochron that I saw on the talk.
It acts like a simple parent-daughter system, and it can be used to date sediments. However, this can be explained by assuming that argon rises to the top of the magma, so magma deeper down looks younger. Recall that olivine is composed of a single tetrahedra and that the other minerals in this sequence are composed of single chains, double chains, and sheet structures, respectively. This lava will take longer to cool down, giving more opportunity for enclosed argon to escape and leading to younger radiometric ages. Anomalies of radiometric dating If a date does not agree with the expected age of its geologic period, and no plausible explanation can be found, then the date is called anomalous.
Data from tree rings alone has calibrated the data back to around 9000 years, and has shown only the sort of minor change in C14 ratio that is expected. Fractionation followed by mixing can create isochrons giving too old ages, without any fractionation of daughter isotopes taking place. However, Harland et al 1990 imply that nearly the correct value for the branching ratio has been known and used since the mid-fifties. Suppose that the uranium does come to the top by whatever reason. A large excess was reported in D.
At any rate, there will be some effects of this nature that will produce some kinds of changes in concentration of uranium and thorium relative to lead from the top to the bottom of a magma chamber. See the articles below for more information on the pitfalls of these dating methods. First, many igneous formations span many periods, and so have little constraint on what period they could belong to. But the degree to which they are incorporated in other minerals with high melting points might have a greater influence, since the concentrations of uranium and thorium are so low. So yeah, if you assume that the ratio is wrong, you'll get a wrong date. They have their work cut out for them, however, because radiocarbon C-14 dating is one of the most reliable of all the radiometric dating methods. It would not be inconsistent with the scientific evidence to conclude that God made everything relatively recently, but with the appearance of great age, just as Genesis 1 and 2 tell of God making Adam as a fully grown human which implies the appearance of age.
The slope of the line is used to determine the age of the sample. All of this argon is being produced and entering the air and water in between the rocks, and gradually filtering up to the atmosphere. There are, however, about 15 or more other dating techniques used. For the Po218 half-life of 3 minutes only a matter of minutes could elapse between the formation of the Po218 and subsequent crystallization of the mica; otherwise the Po218 would have decayed, and no ring would be visible. The main drawback--and it is a strong one--is that this makes God appear to be a deceiver. If any of the assumptions is wrong, so will our age estimate be wrong. What would happen if a dinosaur bone were carbon dated? This verifies what I said about almost all of the dates used to define correct ages for geologic periods being K-Ar dates.
C14 dates forced a revision down to 11,400 years. Yet 'measured' timeframes are routinely reported with misleading measurement error bars. We were standing on the Simi Volcanic flow, about 80 miles south of the south end of Death Valley. They all use three-isotope diagrams similar to Figure 4 to determine the age. One could consider that time itself was changing if that happened remember that our clocks are now standardized to atomic clocks! A very large amount of work has been done on several deep ice cores up to 9,000 feet in depth. No deviations have yet been found from this equation for radioactive decay.
But many minerals take in a lot of uranium. However, the amount of C-14 has not been rising steadily as Cook maintains; instead, it has fluctuated up and down over the past ten thousand years. These books detail experiments showing, for a given dating system, which minerals work all of the time, which minerals work under some certain conditions, and which minerals are likely to lose atoms and give incorrect results. Radium 226 has a low melting point 973 degrees K which may account for its concentration at the top of magma chambers. Many Christians have been led to distrust radiometric dating and are completely unaware of the great number of laboratory measurements that have shown these methods to be consistent.
Aren't these just excuses scientists give in order to neutralize Barnes's claims? One also has to know which isotopes to examine. Bristlecone Pine: Science and Aesthetics. These are listed as the last two entries in Table 1, and are illustrated in Figure 10. This would tend to produce compounds with a high dipole moment, with a positive charge on uranium and a negative charge on the other elements. The Illustrated Origins Answer Book by Paul Taylor -- Living seal What about a freshly killed seal? The Ages of Meteorites Meteorites, most of which are fragments of asteroids, are very interesting objects to study because they provide important evidence about the age, composition, and history of the early solar system.
Coffin gives quite a bit of evidence from increases of C14 ages with depth that the concentration of C14 has increased rapidly in recent years, making C14 dates too old, especially after about 4000 years ago. The Earth is old enough that radioactive isotopes with half-lives less than half a billion years decayed away, but not so old that radioactive isotopes with longer half-lives are gone. Most of the rocks we have from the moon do not exceed 4. With mixing from a third source as indicated above, we obtain an isochron with a variable concentration of N p , and in fact an arbitrary isochron can be obtained in this manner. For further details, see Dalrymple 1991, chapter 6. Everything worth knowing is probably using known as rocks on the first formed by its use the waikato radiocarbon dating.
The ministry supports an accurate interpretation of the Bible while also supportive of science as a tool to study God's creation. Coal, oil, and natural gas are supposed to be millions of years old; yet creationists say that some of them contain measurable amounts of C-14, enough to give them C-14 ages in the tens of thousands of years. The real question to ask is, is the rock sufficiently close to a closed system that the results will be same as a really closed system? In reality, I would expect that crystal growth would be blocked locally by various things, possibly particles in the way. These displaced neutrons, now moving fast, hit ordinary nitrogen 14N at lower altitudes, converting it into 14C. Elaine Kennedy Loma Linda University , Steven Schimmrich U.