divewrecks
Bronze Member
- Sep 7, 2004
- 1,038
- 26
- Detector(s) used
- Minelab Explorer SE (land), Aquapulse AQ1B (sea), Fisher CZ-20 (water, beach), Fisher 1266X (woods)
I found this by accident, but thought it might interest some folks on here. The report is dated 7/4/08. A link is at the bottom to the 40 page PDF file.
Stan
The German submarine U-864 was torpedoed by the British submarine Venturer on February 9 1945
and sunk approximately two nautical miles west of the island Fedje in Hordaland. U-864 was carrying
about 67 metric tonnes of metallic mercury that implies a threat to the marine environment. In
September 2007 The Norwegian Costal Administration commissioned Det Norske Veritas to further
investigate different alternatives to salvage the wreck and remove the mercury from the seabed.
The objective of this supplementary study is to propose a survey method, or combination of methods,
that will give the best probability of detecting sub-bottom mercury canisters around the wreck of U-
864.
DNV’s overall conclusion is: A combination of single caesium vapour magnetometer and pipe
tracker, positioned by acoustic LBL technique, is the preferred method to locate sub-bottom canisters.
The searching will take at least six days and all surface debris must be cleared from the site prior to
operation.
http://www.kystverket.no/arch/_img/9818165.pdf
Stan
The German submarine U-864 was torpedoed by the British submarine Venturer on February 9 1945
and sunk approximately two nautical miles west of the island Fedje in Hordaland. U-864 was carrying
about 67 metric tonnes of metallic mercury that implies a threat to the marine environment. In
September 2007 The Norwegian Costal Administration commissioned Det Norske Veritas to further
investigate different alternatives to salvage the wreck and remove the mercury from the seabed.
The objective of this supplementary study is to propose a survey method, or combination of methods,
that will give the best probability of detecting sub-bottom mercury canisters around the wreck of U-
864.
DNV’s overall conclusion is: A combination of single caesium vapour magnetometer and pipe
tracker, positioned by acoustic LBL technique, is the preferred method to locate sub-bottom canisters.
The searching will take at least six days and all surface debris must be cleared from the site prior to
operation.
http://www.kystverket.no/arch/_img/9818165.pdf
You have to take the good with the bad. If Germany don't want anything to do with their
