are the youngest rocks on the ocean floor located?
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The location of the youngest rocks on the seafloor shows that new rocks form in the middle of the ocean, the same location as the shallowest area of the ocean. This line of new, relatively shallow rocks is known as the mid-Atlantic Ridge.
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Like the lukewarm ocean, it has a floor made of sand, and like all oceans, it is populated with seagrass. Unlike other ocean biomes, warm oceans allow for the generation of coral reefs and sea pickles, but not kelp. Much like other warm ocean biomes, Dolphins, Pufferfish, and Tropical fish can spawn here.
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The Global Ocean The five oceans from smallest to largest are: the Arctic, Southern, Indian, Atlantic and Pacific.
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Ocean Floor Configuration The ocean floors can be divided into four major divisions: The Continental Shelf. The Continental Slope. The Deep Sea Plain.
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What are sedimentary rocks like? Sedimentary rocks contain rounded grains in layers. The oldest layers are at the bottom and the youngest layers are at the top. Sedimentary rocks may contain fossils of animals and plants trapped in the sediments as the rock was formed.
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The crust is subdivided into two types, oceanic and continental. Oceanic crust is found under oceans, and it is about four miles thick in most places. ... Continental crust tends to be much older than the oceanic kind, and rocks found on this kind of crust are often the oldest in the world.
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Sea-Floor Spreading begins at a mid-ocean ridge, which forms along a crack in the oceanic crust. along the ridge, molten material that forms several kilometers beneath the surface rises and erupts. at the same time, older rock moves outward on both sides of the ridge.
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The topmost layer, about 500 metres (1,650 feet) thick, includes lavas made of basalt (that is, rock material consisting largely of plagioclase [feldspar] and pyroxene). Oceanic crust differs from continental crust in several ways: it is thinner, denser, younger, and of different chemical composition.
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Reply to ASK-AN-EARTH-SCIENTIST The floor of the Pacific Ocean is divided into several plates. The largest one, the Pacific Plate is moving north west relative to the plate that holds North America, and relative to hot spots coming up through the mantle from below the plates (they generate islands like Hawaii).
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Rocks are roughly divided into igneous, sedimentary, and metamorphic, and their ages is always less than 5 billion because they didn't come into being as early as earth did. For example, igneous is formed when magma cools down, but all magma didn't cool down when the earth came into being.
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The rocks and geological layers are much older on continental plates than in the oceanic plates. The Continental plates are much less dense than the Oceanic plates. The Granite and recycled material are much lighter than the heavy basalt layers of the ocean plates.
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Answer Expert Verified The evidence of seafloor spreading from the choices given are; Molten material. Magnetic stripes. Drilled core samples.
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Oceanic crust is about 6 km (4 miles) thick. It is composed of several layers, not including the overlying sediment. The topmost layer, about 500 metres (1,650 feet) thick, includes lavas made of basalt (that is, rock material consisting largely of plagioclase [feldspar] and pyroxene).
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It is mostly solid rock, but less viscous at tectonic plate boundaries and mantle plumes. Mantle rocks there are soft and able to move plastically (over the course of millions of years) at great depth and pressure. The transfer of heat and material in the mantle helps determine the landscape of Earth.
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These places are called hot spots. ... Felsic and intermediate magmas and rocks tend to form at ocean--continent or ocean--ocean convergent boundaries, or where hot spots are found on land, and mafic magmas form in divergent plate boundaries and hot spots in the ocean.
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Two major regions of the ocean floor are the continental margin and the deep-ocean basin. The continental margin is the region of ocean floor closest...
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The average ocean depth is 2.3 miles . The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam.