Earth Continental Geology by Era and Sea-Floor
Physiography Maps for Google Earth (KMZ and KML files)

The Earth geology.kmz file (460KB) loads 12 tiled images (shown below) into Google Earth to
produce a seamless, world coverage of continental geology by Era (except for those areas lacking
coverage). The set of images totals 5.53 MB.

* Color scheme for the geology coverage:

Yellow- Cretaceous, Green - Mesozoic, Pink - Paleozoic, Dark Gray - PreCambrian
Orange - unknown age, including undated intrusive and volcanic igmeous rocks.

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Individual tiles can be dowlnloaded and viewed as text files, then saved as KML files to be loaded
individually (see instructions below).

Instructions:

1. Click on an image above to access the associated *.txt file.
2. Save the file to your desktop or a folder.
3. Rename the .txt filename extension to .kml.
3. Open the kml file in Google Earth.

Notes:

* Maps are generated at the 1:30 million scale from shapefiles obtained from the
US Geological Survey and the Geological Survey of Canada.
* World physiography from the US Geological Survey.

www.impacttectonics.org. rev 02/10