Age of oceanic lithosphere.
Age of oceanic floor.
Because of this correlation between age and subduction potential very little ocean floor is older than 125 million years and almost none of it is older than 200 million years.
Sio reference series 93 30 scripps institution of oceanography.
Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet.
Contours of 20 million years are available as a layer that is currently set to invisible.
Samples collected from the ocean floor show that the age of oceanic crust increases with distance from the spreading centre important evidence in favour of this process.
It is thinner denser younger and of different.
2013 that can be loaded into gplates as a time dependent raster series.
Age of the ocean floor a critical analysis february 4 2019 eugene ellis the ionic growing earth ige posits the same 8 elements that started the earth heated the planet for the first 3 3 5 billion years of its existence see ige fig.
The data are described in a data and analysis note in the journal of geophysical research 1997 entitled digital isochrons of the world s ocean floor.
This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.
The data is from four companion digital models of the age age uncertainty spreading rates and spreading asymmetries of the world s ocean basins.
Seafloor spreading is a process that occurs at mid ocean ridges where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
A digital age map of the ocean floor.
For that geologists date and study continental crust.
The hadal zone which includes the oceanic trenches lies between 6 000 11 000 metres 20 000 36 000 ft and is the deepest oceanic zone.
These age data also allow the rate of seafloor spreading to be determined and they show that rates vary from about 0 1 cm read more.
This dataset shows the age of the ocean floor along with the labeled tectonic plates and boundaries.
This dataset contains jpeg images of the oceanic age grid from muller et al.
Depth below seafloor.
It is composed of several layers not including the overlying sediment.
Oceanic crust is about 6 km 4 miles thick.
The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.
Youngest red is along spreading centers.
D dutkiewicz a seton m.
