Geomagnetic dating is most useful for dating material that existed between:
A)100 to 10,000 years ago
B)10,000 to 10 million years ago
C)10 million to 50 million years ago
D)50 million to 5 billion years ago

Question

Quizplus · Accepted Answer

Geomagnetic dating, also known as archaeomagnetic dating, is most effective for materials that are between 10,000 to 10 million years old. This method relies on the fact that the Earth's magnetic field has changed over time, and materials that have been heated or otherwise magnetically influenced can record the direction and intensity of the magnetic field at the time they were last heated. This range is optimal because it is recent enough for the Earth's magnetic field changes to be well documented and understood, yet old enough to encompass significant archaeological and geological events.

Geomagnetic Dating Is Most Useful for Dating Material That Existed