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Carbon dating goes back how far an introduction to tree ring dating

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Creationists often criticize radiocarbon dating in the context of discussions of the age of the earth.

But, as is clear even from the very brief discussion in the previous paragraph, radiocarbon dating can say nothing one way or the other about whether the earth is many millions of years old, since such dates are far beyond this method's range of resolution.

Radiocarbon dating can easily establish that humans have been on the earth for over twenty thousand years, at least twice as long as creationists are willing to allow.

Therefore it should come as no surprise that creationists at the Institute for Creation Research (ICR) have been trying desperately to discredit this method for years.

Dates up to this point in history are well documented for C14 calibration.

For object over 4,000 years old the method becomes very unreliable for the following reason: Objects older then 4,000 years run into a problem in that there are few if any known artifacts to be used as the standard.

Example: wood found in a grave of known age by historically reliable documents is the standard for that time for the C14 content.

This standard content of C14 can then be used for wood not associated with a historically documented date.

This is only because it is well calibrated with objects of known age.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.This article will answer several of the most common creationist attacks on carbon-14 dating, using the question-answer format that has proved so useful to lecturers and debaters. Answer: Cosmic rays in the upper atmosphere are constantly converting the isotope nitrogen-14 (N-14) into carbon-14 (C-14 or radiocarbon).The earliest records are the Egyptian king lists, dating from about the First Dynasty in Egypt, between 32 B. But internal and external evidence indicates that these dates should be lowered. In Genesis 8:4, we are told that, near the end of the Flood, the ark came to rest in the region of the Ararat mountains. An Egyptologist writes: "We think that the First Dynasty [in Egypt] began not before 3400 B. This mountainous area is located in the far-eastern portion of modern Turkey, close to Iran and Iraq (which anciently was Persia and Babylonia). Because of this relatively short half-life, radiocarbon is useful for dating items of a relatively recent vintage, as far back as roughly 50,000 years before the present epoch.