How are C and U dating used together in order to determine fossil ages? | Socratic How are C and U dating used together in order to determine fossil ages? | Socratic

Why cant carbon-14 dating be used to date the age of rocks, choose a video to embed

Carbon-14 Dating Cannot Be Used For

What was the starting amount of 14C in the creature when it died? It cannot be used directly to date rocks; however, it can potentially be used to put time constraints on some inorganic material such as diamonds diamonds could contain carbon A freshly killed seal, dated using Carbon, showed it had died years ago.

It is possible that the ratio of daughter to parent substances for radiometric dating could differ in the different minerals.

In order to date the artifact, the amount of Carbon is compared to the amount of Carbon the stable form of carbon to determine how much radiocarbon has decayed. By comparing the ratio of carbon to carbon in an artifact to the ratio of carbon to carbon in living organisms scientists can determine the age of an artifact.

Radiometric dating of rock involves the measurement of the amount of decay in radioactive elements which are present in the rock. Poole But how is this done? However this can only be done in a few cases and arguably the error margins would be such as to make the process not particularly useful.

In practice, geologists carefully select what rocks they will date, and have many explanations for discordant dates, so it's not clear how such a study could be done, but it might be a good project for creationists.

Index fossils indicate the relative age of rocks and fossils found in certain sedimentary formations. This rules out carbon dating for most aquatic organisms, because they often obtain at least some of their carbon from dissolved carbonate rock.