_________ record the presence of microbial mats during the Archean eon.
A)Stromatolites
B)Thermophiles
C)Laminations
D)Banded iron formations

Question

Quizplus · Accepted Answer

Stromatolites are layered bio-chemical accretionary structures formed in shallow water by the trapping, binding, and cementation of sedimentary grains by biofilms of microorganisms, especially cyanobacteria, thus recording the presence of microbial mats during the Archean eon.

_________ Record the Presence of Microbial Mats During the Archean