Sentences with phrase «tiny microbes created»

n isolated, iron - rich bay in the heart of East Africa is offering scientists a rare glimpse back into Earth's primitive marine environment, and supports theories that tiny microbes created some of the world's largest ore deposits billions of years ago.

Not exact matches

Take a good look at this photo: It shows you 1.6 billion years old fossilized oxygen bubbles, created by tiny microbes in what was once a shallow sea somewhere on young Earth.
a b c d e f g h i j k l m n o p q r s t u v w x y z