The match between and colleagues' and independent age estimates of the same shifts seen in lake cores and deep-sea sediments is strong support for their quality.
Though slow by human standards, this rate is much faster than that for deep-sea pelagic sediments.
Some of the siliceous scales can also be preserved over time as microfossils in deep-sea sediments, providing a window into modern and ancient plankton/protists communities.
They sink through the water column to form an important part of the deep-sea sediments (depending on the water depth).
Confirmation of the theory was harder and came from temperature records contained in deep-sea sediments around the world.
About three-fourths of the ocean floor is covered with deep-sea sediments.
Microfossils, particularly from deep-sea sediments, also provide some of the most important records of global environmental change on long, medium or short timescales.
Microtektites are typically found in deep-sea sediments that are of the same age as one of the four known strewn fields.
A few strains have been also reported from deep-sea sediments.
Dolomite crystals also occur in deep-sea sediments, where organic matter content is high.