NASA Scientist Reveals Greenland's Geologic Past

The video explains how tectonic plates, such as those beneath Iceland, are constantly moving and reshaping the Earth's surface. It highlights Iceland's volcanic activity due to its position over a hot spot. A NASA study used Greenland's magnetic field anomalies to analyze its geothermal heat flux, revealing a thermal track in the bedrock that shows the continent's movement over time. This movement over a hot spot led to the formation of Iceland, illustrating the dynamic nature of Earth's landmasses.

What evidence did researchers find in Greenland's crust to support their findings about geothermal heat flux?

Explain how the ancient path of the hot spot is reflected in the current geological features of Iceland.