Continental rock is MUCH older than sediments in the sea (unless the sediments in the sea come from continental crust, in which case they would be the same age).
Sediments produced by plants and animals in the sea are called biogenic sediments. These sediments are composed of organic remains, such as shells, corals, and skeletal debris, which accumulate on the seafloor over time.
Hydrogenous sediments form when minerals precipitate directly from seawater as a result of chemical reactions or biological processes. For example, manganese nodules and phosphorite deposits are examples of hydrogenous sediments that form in this way in the deep sea. These sediments accumulate slowly over time on the ocean floor.
Not really but sea floor sediments thickness increase with increased distance from spreading centers which is good evidence. Other evidence such as magnetic reversals, temperature, dating methods provide the best evidence of seafloor spreading
how do deep sea bacteria survive
The deep sea.
Deep-sea sediments most likely contribute to continent growth by being scraped off in a subduction zone and left at the surface.
Roberto Danovaro has written: 'Methods for the study of deep-sea sediments, their functioning and biodiversity' -- subject(s): Marine biology, Marine sediments, Benthic animals, Methodology, Benthos, Research 'Methods for the study of deep-sea sediments--their functioning and biodiversity' 'Methods for the study of deep-sea sediments--their functioning and biodiversity' -- subject(s): Marine biology, Marine sediments, Benthic animals, Methodology, Benthos, Research
Due to long shore currents the suspended particles transported as a suspended load to the deep sea.
Sture Landergren has written: 'On the geochemistry of deep-sea sediments'
The majority of sediments from continents settle in the oceans, especially in areas close to the coastlines where rivers deposit large amounts of sediment. These sediments can accumulate in continental shelves, deep sea trenches, and submarine canyons.
A deep sea plain, sometimes called an abyssal plain is a wide, almost level area that covers about two-thirds of the entire ocean floor. There is a complete absence of river sediments on this plain.
scraped off in a subduction zone and left at the surface
Patricia Paluso has written: 'A guide to publications and subsequent investigations of Deep Sea Drilling Project materials' -- subject(s): Bibliography, Deep Sea Drilling Project, Marine sediments, Paleontology
To investigate the evolution of ocean basins by core drilling of ocean sediments and underlying oceanic crust.
Tsung-hung Peng has written: 'The impacts of bioturbation on the age difference between benthic and planktonic foraminifera in deep sea sediments' -- subject(s): Foraminifera, Marine sediments
You can get a choice between a DEEP SEA SCALE or a DEEP SEA TOOTH from Cap. Stern after the Scanner event.Wild Pokemon sometimes carry them too (rare) (NOTE: ONLY IN DIAMOND AND PEARL.)Deep Sea Scale : Clamperl, Chinchou, Relicanth.Deep Sea Tooth : Carvanha, Sharpedo.