article_snippet: In this view of the mantle below the Pacific Ocean, slower waves are shown in red and orange while faster waves are shown in green and blue .
article_snippet: In these images, slower waves are in red and orange, while faster vibrations are in green and blue.
article_snippet: Blue colours denote faster than average wave speeds, and red colors denote slower than average wave speeds .
highlights_snippet: Slower waves are red and orange, while faster ones are green and blue .