My first day on the job with Patterson Lab mapping Ottawa’s stromatolite beds. Using helium balloons to float a digital camera above the ancient stromatolite bed to map it for the first time ever!

"Stromatolites are layered accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by biofilms of microorganisms, especially cyanobacteria (commonly known as blue-green algae). Stromatolites provide some of the most ancient records of life on Earth." (Wikipedia)