Posted: Dec 18, 2016 2:23 pm
Um the Canadian Shield last time I checked was part of the crust.
Here is a good read and the conclusion seems to point to water as part of the original formation.
https://en.wikipedia.org/wiki/Origin_of_water_on_Earth
Here is a good read and the conclusion seems to point to water as part of the original formation.
https://en.wikipedia.org/wiki/Origin_of_water_on_Earth