It is expected that seafloor samples taken farther from land usually contain a greater proportion of biogenous sediments because sediments are thinnest on the seabed closest to spreading centres (young seafloor) and thicker distant from the ridge (older seafloor with more time for accumulation). Additionally, sediments are substantially thicker close to continents.
More about seafloor sediments:
Terrigenous, pelagic, and hydrogenous sediment are the three different types of sea floor sediment. Terrigenous sediment is deposited on the continental shelf, continental rise, and abyssal plain and is derived from the land.
Clay particles and tiny marine animal skeletons that progressively sink to the ocean floor make up pelagic sediment. Minerals that precipitate from seawater on the ocean floor, such as manganese nodules, are abundant in hydrogenous sediments.
Learn more about sediments here:
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Eastern Russia's climate is like a D. tundra
I say true most of them would be informal
Hi there,
I hope you and your family are staying safe and healthy!
Panthalassa was the name of the single world ocean that surrounded pangaea, which is in today's world called the Pacific Ocean.
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Garebear
