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The depth of the seafloor on the flanks of a mid-ocean ridge is determined mainly by the age of the oceanic lithosphere; older seafloor is deeper. During seafloor spreading, lithosphere and mantle cooling, contraction, and isostatic adjustment with age cause seafloor deepening. This relationship has come to be better understood since around ...
[2] [3] On the ridge flanks, the depth of the seafloor (or the height of a location on a mid-ocean ridge above a base-level) is correlated with its age (age of the lithosphere where depth is measured). The depth-age relation can be modeled by the cooling of a lithosphere plate [4] [5] or mantle half-space. [6] A good approximation is that the ...
The depth predicted by the square root of seafloor age derived above is too deep for seafloor older than 80 million years. [27] Depth is better explained by a cooling lithosphere plate model rather than the cooling mantle half-space. [27] The plate has a constant temperature at its base and spreading edge.
Depth below seafloor is a vertical coordinate used in geology, paleontology, oceanography, and petrology (see ocean drilling). The acronym "mbsf" (meaning "meters below the seafloor") is a common convention used for depths below the seafloor.
When the age of the ocean crust as determined by magnetic anomalies or drill hole samples was compared to the ocean depth it was observed that depth and age are directly related in a seafloor depth age relationship. [25] This relationship was explained by the cooling and contracting of an oceanic plate as it spreads away from a ridge crest. [26]
The beams update many times per second (typically 0.1–50 Hz depending on water depth), allowing faster boat speed while maintaining 100% coverage of the seafloor. Attitude sensors allow for the correction of the boat's roll and pitch on the ocean surface, and a gyrocompass provides accurate heading information to correct for vessel yaw .
‘Unusual’ stones on seafloor turn out to be ‘thrilling’ 11,000-year-old trap in Germany ... researchers identified the Blinkerwall as an 11,000-year-old trap likely built by Stone Age ...
The depth of the ocean basins is a function of the age of oceanic lithosphere ... (plate divergence/convergence) and change in seafloor elevation (mid-ocean volcanism)