Quiz on radioactive dating

Play a game that tests your ability to match the percentage of the dating element that remains to the age of the object.

Each chapter will include a few questions designed to test your knowledge of material covered in the chapter and in the Internet-based resources.

...igneous activity (both extrusive and intrusive) occurred in the Caledonian mountain belt, which stretched from New England, Nova Scotia, Newfoundland, Scotland, and Scandinavia to eastern Greenland.

Radiometric dating of granitic intrusions associated with the Caledonian orogeny yields ages between about 430 million and 380 million years.

Absolute dating uses chemical and physical processes to provide a date range for an object, fossil, or site.

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Another role of isotopic geochemistry that is of great importance in geology is radiometric age dating. Beginning with studies in the 1950s, a much better chronology and record of Pleistocene climatic events have evolved through analyses of deep-sea sediments, particularly from the oxygen isotope record of the shells of microorganisms that lived in the oceans.

Scientific knowledge of Earth’s geologic history has advanced significantly since the development of radiometric dating, a method of age determination based on the principle that radioactive atoms in geologic materials decay at constant, known rates to daughter atoms.

Radiometric dating has provided not only a means of numerically quantifying geologic time but also a tool for determining the...

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