Microbial mats from Lake Hoare in Antarctica.

Microbial mats from Lake Hoare in Antarctica show similar appearance to those of Middle Island sinkhole. Image courtesy of Thunder Bay Sinkholes 2008. Photo: © 1996 Dale T. Andersen.

 

 

Related Links

Thunder Bay Sinkholes 2008

Thunder Bay Sinkholes 2008: Sept 4 Log

NOAA Ocean Explorer Gallery