Freeze Coring at Shannon Lake, June 2000

 

Shannon Lake

Sampling Crew Members - left to right: Sandra Rosenberg, Sharon (Tighe) Coslin, Lisa (Dreger) Wilson

 

Lisa: Crushing Dry Ice

 

Jeff Curtis adds methanol to create dry-ice slurry

 

Jeff pouring dry ice slurry into freeze corer tube

 

Working the dry ice slurry from funnel into freeze corer

Capping the freeze corer

 

Lowering the freeze corer into Shannon Lake

 

 

Jeff retreiving freeze corer from the lake bottom

 

Successful crew returning with freeze core

 

The Freeze Core

 

Lunch!!! Sharon and Sandra

 

Donna Francis, Lisa, Sharon & Jeff

 

Jeff removing ice plug from the core bottom

 

Pouring hot water into freeze corer to separate it from the frozen rind of sediment

 

Wrapping the rind of frozen sediment

 

Bottom portion of final freeze core

(right - fresh half-core planed to reveal undisturbed sediment structure)
(left - freeze-dried half-core, with laminations indicated at 5 year intervals)

 


 

EESC Coring Demonstration: May 2000

 

Ian with Kajak-Brinkhurst Core ready for extrusion

 

Preparing raft to take Livingstone core

 

Heading for home with truck load of gear

 

 

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