Below is the current North American Stratigraphic Code as published in the AAPG Bulletin, November 2005.
Click here for the spanish version, special thanks to the Instituto de Geologia de Mexico.
Click here for an html version.
Below is the current North American Stratigraphic Code as published in the AAPG Bulletin, November 2005.
Click here for the spanish version, special thanks to the Instituto de Geologia de Mexico.
Click here for an html version.