Research in Lake Superior reveals how sulfur might have cycled in Earth's ancient oceans - Phys.org
phys.orgSubmitted by physorg8953 in science
Geochemist Alexandra Phillips has sulfur on her mind. The yellow element is a vital macronutrient, and she's trying to understand how it cycles through the environment. Specifically, she's curious about the sulfur cycle in Earth's ancient ocean, some 3 billio…