Lake mud may reveal environmental change

Posted on January 8th, 2010 by


On January 6, students taking the J-Term course “Paleolimnology” (GEO 110) retrieved three sediment cores from Lake Hallett in St. Peter, with assistance from researchers from the University of Minnesota’s Limnological Research Center.  Lake sediments accumulate slowly over time, so they can record signals of environmental changes that happened before people were monitoring the lake.  The students will spend the rest of the month examining physical, chemical and biological characteristics of the mud to try to tell the story of Lake Hallett and its landscape.


One Comment

  1. […] While I was in Dr. Murphy’s lab, she told me her class was going to join with Dr. Laura Triplett’s (geology) Paleolimnology course to present their final results to one another. So I dropped by the geology department and found Dr. Triplett’s students investigating the sediments in St. Peter’s own Lake Hallett. More pictures and information can be found on the Geology blog here and the Environmental Studies blog here. […]