How accurate is radiocarbon dating?
What is the time limit on the dating?
How can the earth be dated?
What is the time limit on the dating?
How can the earth be dated?
eves_child said:How accurate is radiocarbon dating?
What is the time limit on the dating?
How can the earth be dated?
This is mostly done using other types of radiometric dating. Potassum-argon, Rb-Sr isochron, and uranium series. These three are good back to billions of years.eves_child said:A few more questions.
How do you determine what age are the sedimitary layers?
How do you determine ages later than 30k?
Over the range of radiocarbon dating? I suppose counting tree rings and ice cores in Greenland or Antarctica would probably be more precise. But you usually can't date what you are interested in with them. They can be used to calibrate radiocarbon dating though.Are there more accurate testing processes available besides carbon dating?
Two main ways. Determine how old the oldest stars are and figure out how long the universe has been expanding. The first can be determined by what we know about nuclear fusion and stellar evolution. The second can be determined by looking at how fast the universe is expanding now (and in the past) and backtrack to the big bang. It is important to note that the first method puts a lower bound on the age of the universe. The universe can be older than the oldest stars, but it cannot be younger than them.Off the topic question,
how do we determine the age of the universe?
Arikay said:"I could look up the citation if anyone's interested"
Yes please.
I'll be delighted. From the OP:Well go ahead Rick, answer the question.
It varies with the depth of time and the source type of the sample and expressed as a function of statistical reliability (+/-), either as a percent, calendar years, or carbon years. There are numerous possible variables, but they are always noted and described in the literature. No picking and choosing to fit a desired date as creation science suggests.1. How accurate is radiocarbon dating?
Beta counting method requires several grams of sample and generally has an upper limit of 50,000 years. The AMS method only requires a milligram or less sample and can go as far as 100,000 years,What is the time limit on the dating?
Not by radiocarbon dating.How can the earth be dated?
I'll be delighted. From the OP:
It varies with the depth of time and the source type of the sample and expressed as a function of statistical reliability (+/-), either as a percent, calendar years, or carbon years. There are numerous possible variables, but they are always noted and described in the literature. No picking and choosing to fit a desired date as creation science suggests.
Beta counting method requires several grams of sample and generally has an upper limit of 50,000 years. The AMS method only requires a milligram or less sample and can go as far as 100,000 years,
Not by radiocarbon dating.
Actually there are a number of different methods which include radiometric, non-radiometric, and relative dating. The non-radiometric methods of course are for specific types of sedimentary rock, such as speleothems and varves, although both of those can and are dated radiometrically as well. In fact, speleothems are also helpful in establishing the radiocarbon calibration curve. In other sedimentary rocks, radiometric dating can be used, but not by just dating the rock. What is dated is either a volcanic extrusion layer in the strata or volcanic ash contained within. Both the radiometric, speleothems and varves are absolute dates. Relative dating sedimentary rock is generally what is most misunderstood and erroneously described, especially in the creation science literature as circular reasoning. In fact, there is no circular reasoning. Relative dating of sedimentary strata is by the use of index fossils. That is fossils that are of relatively short duration of their existence, geologically speaking, thousands to a few million years. The common creationist spin is that the fossils date the strata and the strata date the fossils. Thus the circular reasoning accusation. The fact is, in reality, the strata is radiometrically dated in which the fossils are contained. Once the strata is dated, the index fossils that are found in only that specific strata are known to be of a relative age spanning the upper and lower limits of where they are contained in the strata, thus only a relative age spanning thousands to millions of years.A few more questions.
1. How do you determine what age are the sedimitary layers?
There are numerous methods of dating, all of which are unique and applicable to specific applications with specific limits. The last time I counted the methods I was aware of and could describe amounted to over 70 and that number keeps growing with new understanding and technology, not to mention becoming more and more reliable and accurate.How do you determine ages later than 30k?
Each method is unique and applicable to specific applications.Are there more accurate testing processes available besides carbon dating?
By measuring the age of stars, which is out of my expertise.Off the topic question,
how do we determine the age of the universe?
It is collaborated by things like tree rings. The trees of Noah's day grew in weeks, so a ring was not yearly, obviously. The nature or forces and laws of Noah's day were likely different also, which means that there may not have been radioactive decay persay at all. Science assumes a same state past nature, in all it's ideas and models and dates. That means they are useless beyond aprox 3500 years or so.How accurate is radiocarbon dating?
What is the time limit on the dating?
Fortunately we have God's record, and the times when Adam lived more or less.How can the earth be dated?