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The Northeast Canyons and Seamounts Marine National Monument is located within the New England and mid-Atlantic regions, 130 miles southeast of Cape Cod. [1] It comprises a total area of 4,913 square miles, [1] and protects four underwater seamounts (Bear, Mytilus, Physalia, and Retriever Seamounts) and three submarine canyons in the edge of the continental shelf (Oceanographer, Lydonia, and ...
One of the main goals of the four-fold expansion of the Papahānaumokuākea Marine National Monument was to promote the conservation of marine biodiversity in the U.S. EEZ. Scientific studies have shown that underwater mountains, or seamounts, are rich in biodiversity as they provide a structure for animals to live on. [7]
All of the wood's cavities will be filled with water, and the absorbed water and the remnants of the lignin will maintain the original form of the woods, meaning that the wood will only retain its original form while its underwater. When wood is found in a marine environment, it is recommended to have secured the required conditions for its ...
The archaeologists found heaps of stone blocks resting on the sandy bottom at least 14 feet below the water’s surface. Near there, experts also located what is likely a funerary monument dating ...
The earliest phase of the seaway began in the mid-Cretaceous when an arm of the Arctic Ocean transgressed south over western North America; this formed the Mowry Sea, so named for the Mowry Shale, an organic-rich rock formation. [1] In the south, the Gulf of Mexico was originally an extension of the Tethys Ocean. In time, the southern embayment ...
Many of the world’s highest mountains aren’t visible on land — they rise up thousands of meters from the seafloor. An expedition to the Nazca Ridge, 900 miles off the coast of Chile, has ...
A tetrapod is a form of wave-dissipating concrete block used to prevent erosion caused by weather and longshore drift, primarily to enforce coastal structures such as seawalls and breakwaters. Tetrapods are made of concrete , and use a tetrahedral shape to dissipate the force of incoming waves by allowing water to flow around rather than ...
In 1982, the United Nations Convention on the Law of the Sea (UNCLOS) was developed to govern the deep-sea beds vis-à-vis increasing commercial exploitation of sunken objects. [10] In light of the emergence of newly independent states, a need was created for an international legal body that would help protect underwater cultural goods, in ...