Images and animations depicting the crustal age of the ocean floor created by the NOAA National Centers for Environmental Information (NCEI) from bathymetric, topographic, and marine geological and geophysical data.

2023年9月19日 · This dataset shows the age of the ocean floor with the lines or contours of 5 million years as shown in the colorbar. Plate names and plate boundaries are available as layers but must be turned on to appear.

2019年3月4日 · Seafloor mapping, in its earliest, most primitive form, consisted of lowering weighted lines and measuring how far the sunk. This was done mostly to determine near-shore hazards for navigation. The development of sonar in the early 20th century allowed scientists to get a clearer picture of seafloor topography.

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2010年4月1日 · This dataset shows the age of the ocean floor along with the labeled tectonic plates and boundaries. Contours of 20 million years are available as a layer that is currently set to invisible. The data is from four companion digital models of the age, age uncertainty, spreading rates and spreading asymmetries of the world's ocean basins.

2009年4月13日 · A digital age map of the ocean floor. SIO Reference Series 93-30, Scripps Institution of Oceanography. 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.

2024年4月15日 · We present four companion digital models of the age, age uncertainty, spreading rates and spreading asymmetries of the world’s ocean basins as geographic and Mercator grids with 2 minute resolution.

This page contains four companion digital models of the age, age uncertainty, spreading rates and spreading asymmetries of the world's ocean basins as geographic and Mercator grids with two-minute resolution.

2023年11月19日 · Visually accessible global maps of oceanic plate age designed for color-blind readers. Highlighted are subduction zones (wide black lines) and other plate boundaries (thin black lines).

A digital age map of the ocean floor. SIO Reference Series 93-30, Scripps Institution of Oceanography. The color image representing crustal ages was created from a digital age grid of the ocean floor with a grid node interval of 0.1 degrees using a self-consistent set of global isochrons and associated plate reconstruction poles by the authors ...