buzsaw writes:
I will have to check again on the metals. I believe gold, silver and lead were mentioned, but whether this would be an aloy or whether it was decoration, etc, I'm not positive.
If it contains lead that may be indicative as to why the coral did not attach to it.
RAZD writes:
Again, mostly free of growths after 3000 years would be a wondrous achievement. The US Navy would be extremely interested as the annual cost of antifouling the fleet is astronomical and they are specifically excluded from governmental regulations on heavy metal use. I also wonder why it is not buried by the lighter, mobile sand that blankets the area. It should have sunk out of sight.
I agree with RAZD that that would be amazing for wood to be free of growth after 3000 years. Does anyone know how long wood would last underwater? It seems to me that organisms would have eaten up any exposed pieces of wood, and after
"3000 years!" i would think the wood would have long since decayed. The picture doesn't seem to show any amount of decay that I can see.
I have been looking through the internet but am unable to find references on how long wood lasts under the ocean.