Beck Spring Dolomite
1,000 foot thick, 1 billion years old. Dolomite is a chemical precipitate. This one formed in a shallow ocean tidal flats. The black strands are fragments of an early life form of blue-green algae called stromatolites.
Precambrian > Proterozoic eon > Neoproterozoic era > Tonian period
Next >
< Previous
Beck Spring Dolomite
Precipitate: A precipitate is formed when a slightly soluble substance becomes insoluble and separates from a solution due to heat or a chemical reaction. The term is used to indicate the act of forming a solid and for the substance that is precipitated out of a solution.