This KMZ file displays the age of the ocean floor in Google Earth. This tool helps to better understand the evolution of Earth’s modern oceans across geological time. The file contains 2 separated overlays (contours and rainbow isochrons) that can be displayed independently. The transparency of each overlay can be adjusted using the slider for various effects.

    The overlays were made using GMT from the University of Hawaii and the Agegrid data (v3; Sep2008) available from EarthByte.org. Tectonic boundaries data come from the USGS latest earthquakes KML file.