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During the breakup of Pangaea Rhode Island was positioned alongside a marine environment once again as extensive erosion of the Appalachian Mountains deposited sediments out on the continental shelf, beginning the creation of the Atlantic coastal plain. [1] Rhode Island was glaciated in the past 2.5 million years of the Quaternary, in 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 felsic nature of Laurentia allowed it to float over the denser ocean basins that surrounded it, so it was not submerged under the then-forming oceans. During the Archean Eon the surface of New England was a coastal desert covered by silica -rich sediments with outcroppings of granite bedrock .
Rhode Island (/ ˌ r oʊ d-/ ⓘ, pronounced "road") [6] [7] is a state in the New England region of the Northeastern United States.It borders Connecticut to its west; Massachusetts to its north and east; and the Atlantic Ocean to its south via Rhode Island Sound and Block Island Sound; and shares a small maritime border with New York, east of Long Island. [8]
Rhode Island Sound, shown in pink. Rhode Island Sound is a marine sound off the coast of the U.S. state of Rhode Island at the mouth of Narragansett Bay.It forms the eastern extension of Block Island Sound and opens out the Atlantic Ocean between Block Island and Martha's Vineyard.
The Mid-Atlantic Ridge is a mid-ocean ridge (a divergent or constructive plate boundary) located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world. In the North Atlantic, the ridge separates the North American from the Eurasian plate and the African plate, north and south of the Azores triple junction.
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Narragansett Bay is a bay and estuary on the north side of Rhode Island Sound covering 147 square miles (380 km 2), 120.5 square miles (312 km 2) of which is in Rhode Island. [1] The bay forms New England 's largest estuary, which functions as an expansive natural harbor and includes a small archipelago. [ 2 ]