question: if you need to date a rock sample from a layer of strata from 500 ka, which isotopic dating method…

question: if you need to date a rock sample from a layer of strata from 500 ka, which isotopic dating method should you use? answer options: select one of four strontium - rubidium dating uranium - lead dating potassium - argon dating carbon - nitrogen dating

question: if you need to date a rock sample from a layer of strata from 500 ka, which isotopic dating method should you use? answer options: select one of four strontium - rubidium dating uranium - lead dating potassium - argon dating carbon - nitrogen dating

Answer

Answer:

C. Potassium-argon dating

Brief Explanations:

Potassium - argon dating is suitable for dating rocks in the range of hundreds of thousands to billions of years old. Strontium - rubidium and uranium - lead dating are more for very old rocks (billions of years). Carbon - nitrogen dating is not a real isotopic dating method for rocks, and carbon - 14 dating is mainly for recent organic materials (up to about 50,000 years). So for a 500 ka rock sample, potassium - argon dating is appropriate.