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The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates ...
Plates that are not subducting are driven by gravity sliding off the elevated mid-ocean ridges a process called ridge push. [4] At a spreading center, basaltic magma rises up the fractures and cools on the ocean floor to form new seabed. Hydrothermal vents are common at spreading centers. Older rocks will be found farther away from the ...
Marine geology or geological oceanography is the study of the history and structure of the ocean floor. It involves geophysical, geochemical, sedimentological and paleontological investigations of the ocean floor and coastal zone. Marine geology has strong ties to geophysics and to physical oceanography.
The International Longshoremen’s Association (ILA) union and the U.S. Maritime Alliance (USMX), an association of companies that operate East and Gulf Coast ports, reached a tentative agreement ...
In their first strike since 1977, ILA dockworkers have been pushing for a 77% pay raise over the life of the contract and a halt on automation that could replace union jobs at U.S. ports.
A three-day ILA strike in October had triggered a surge in shipping prices and cargo backlogs at the 36 affected ports. Longshoremen returned to work after employers agreed to a 62% wage increase ...
Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor.These particles either have their origins in soil and rocks and have been transported from the land to the sea, mainly by rivers but also by dust carried by wind and by the flow of glaciers into the sea, or they are biogenic deposits from marine organisms or from ...
NEW YORK (Reuters) -Dockworkers on the U.S. East Coast and Gulf Coast began a strike early on Tuesday, their first large-scale stoppage in nearly 50 years, halting the flow of about half the ...