On the abyssal plains, at depths between 3,000 and 6,000 meters, polymetallic nodules are scattered across millions of square ...

The sediment retention dam in Toutle has become less and less effective as it fills, switching from catching about 80% of passing sediment to allowing 80% to pass, according to ...

Foraminifera are single-celled marine organisms with a calcareous shell. They not only provide evidence of past habitats, but ...

Haskell says a key issue is something called turbidity — how much mud and fine sediment is stirred up when cruise ships enter ...

Mining of polymetallic nodules from the seabed might lead to significant and long-lasting ecological changes -- both in the mined area, where surface sediments and the fauna living in and on it are ...

It stated that it was fine silt which had occupied entire mishap site. For this it said gas welding cutters, including plasma cutters, to be used. In all eight gas welding cutters would be ...

The project aims to reduce the amount of very fine inorganic sediment by 12%, fine inorganic sediment by 25%, and coarse inorganic sediment by 33% from the defined boundaries. In the consent ...

Haskell says a key issue is something called turbidity — how much mud and fine sediment is stirred up when cruise ships enter the harbor. He says, "You have these very large vessels with their ...