'Submarine tomb'
'Submarine tomb'
(OP)
Hi can anyone explain to me what is the 'special type of sand and gravel' they would be using in this project?
http://news.bbc.co.uk/2/hi/europe/6193979.stm
http://news.bbc.co.uk/2/hi/europe/6193979.stm





RE: 'Submarine tomb'
Mike Halloran
Pembroke Pines, FL, USA
RE: 'Submarine tomb'
I don't know either, but perhaps it might only be more dense than typical sand.
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: 'Submarine tomb'
RE: 'Submarine tomb'
Stephen Argles
Land & Marine
www.landandmarine.com
RE: 'Submarine tomb'
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: 'Submarine tomb'
Stephen Argles
Land & Marine
www.landandmarine.com
RE: 'Submarine tomb'
The gravel probably holds the cap in place.
The threat is mercury solubilizing into the seawater; believe it solubilizes as chloride. Wikipedia article says the oceans already contain an average 3×10-5 mg/L of mercury. Enough to make predator fish such as swordfish & tuna a bit toxic.
http://en.wikipedia.org/wiki/Mercury_(element)
Re placing of the cap: Off the Palos Verdes peninsula (SW corner of Los Angeles County), the seabottom is contaminated with DDT. Several 3-acre test plots were capped in 2002 by dumping silt dredged from harbors. It gave a uniform 1.5 foot coverage at the 140-200 foot depths. The stuff fell relatively straight (little drift), with dispersion probably helping even it out. So, capping is possible.
RE: 'Submarine tomb'
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: 'Submarine tomb'
Don't you find it annoying when reporters write a story like this but fail to give the important technical details?
BigInch
no it's not Paul John as in Jones or even John Paul Jones!
RE: 'Submarine tomb'
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com