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Virtual dating isochron

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These activities are available without cost on this website. Recommended System Requirements Click to see the technical details on using Geology Labs On-Line.The Virtual Courseware Project produces interactive, online simulations for the life science laboratory or for earth science field studies.

Note that the scale on the horizontal axis is now 10 times greater than the vertical axis.Most people think that radioactive dating has proven the earth is billions of years old.After all, textbooks, media, and museums glibly present ages of millions of years as fact.Adjust the slope of the line connecting the points by moving the slider to the right and left.This line, called an Isochron, increases in slope as time passes.Move the slider and watch the slope of the isochron change over time.

You can also type numbers directly into the text box displaying the slope.

A relative age simply states whether one rock formation is older or younger than another formation.

The Geologic Time Scale was originally laid out using relative dating principles.

This activity also includes a C-14 option for once-living materials that are less than 50,000 years old. Radioactive Isotopes - the "Clocks in Rocks": Numerical and Relative Ages for Rocks.

A numerical (or "absolute") age is a specific number of years, like 150 million years ago.

They point to a catastrophic origin for granites, consistent with the biblical timeframe for earth history and God’s judgment during the Flood.