Talk:1829: Geochronology

Explain xkcd: It's 'cause you're dumb.
Revision as of 07:45, 26 April 2017 by 141.101.105.150 (talk)
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This might help explaining: https://en.wikipedia.org/wiki/List_of_tectonic_plates Between the Newfoundland Plate (Canada) and the Labrador part of the Canadian Shield the Appalachian Mountains exist.--141.101.105.150 07:45, 26 April 2017 (UTC)