dr. matthew boyd boring a hole in the ice.

 

 

 

dr. matthew boyd teaching graduate 世界杯2022赛程表淘汰赛 jennifer surette and lesley kingsmill how to extract sediments from a lake using a universal corer.

using the vibracorer:

 

graduate 世界杯2022赛程表淘汰赛 jennifer surette and lesley kingsmill preparing the vibracorer.



graduate student jennifer surette examining her core.