A. Potassium-Argon Method This method is used mainly to date rocks older than 100,000 years.

What is the best method for dating volcanic rocks older than 100000 years old?

radiometric dating methods To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.

How do you determine the age of a rock in half life?

4:305:30Calculating Absolute Age Tutorial - YouTubeYouTube

How old do paleontologists believe the Earth is?

4.54 billion years old Scientists now know the Earth is actually 4.54 billion years old, an age built on many lines of evidence from the geologic record.

How old is hl2?

17y Half-Life 2/Age