Figure 4: Taken at the Isolated Sinkhole in September 2003, these video still images show conspicuous benthic white and dark mats (top) and the 1-to-2 m (3.2-to-6.5 ft) thick nepheloid-like plume layer (a potential microbial hotspot) prevailing just over the lake floor (bottom). The images were captured by remotely operated vehicle. Image courtesy of University of Michigan's MROVER.
Related Links
Thunder Bay Sinkholes 2008: Mission Plan
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Download high-resolution image (Figure 4 Bottom jpg, 372 Kb)
