Dive Studies in Middle Island Sinkhole

Benthic core to be used for isotope dating

A benthic (lake bottome) core to be used for isotope dating. Click image for larger view and image credit.


NOAA Divers Joe Hoyt and Russ Green prepare to collect groundwater and 
deploy chambers

NOAA divers Joe Hoyt and Russ Green prepare to collect groundwater and deploy chambers. Image courtesy of Thunder Bay Sinkholes 2008.


September 3, 2008

Vessel: Huron Explorer, 41-foot NOAA research vessel
Divers: Joe Hoyt and Russ Green
Scientists: Bopi Biddanda, Steve Nold, Scott Kendall
Sea conditions: 2- to 4-ft waves, strong (15 knot) breeze

Objectives:

Field Operations:

Lab Procedures:

Steve Nold emptying groundwater collected from the bottom of the Middle 
Island Sinkhole

Steve Nold empties groundwater collected from the bottom of the Middle Island Sinkhole. Image courtesy of Thunder Bay Sinkholes 2008.


 

Observations:

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