Ministry of Northern Development and Mines


May 25, 2014
Geology is a science which focuses on the study of solid Earth, the rocks of which it is composed and the processes by which it changes. It provides insight into the Earth's past including the evolutionary history of life and past climates.
Geology is commercially important for mineral exploration and for evaluating natural resources. It also helps find solutions to environmental problems and both predict and understand natural hazards.
Ontario has a long and lively geological past that has shaped the way it appears today. The first piece of the crust that is now Ontario made its appearance more than three billion years ago. Since then, the province has been shaped by the movement of the ever-shifting plates that cover the surface of the Earth.
Ontario is a showcase of geological processes caused by these shifting plates, including volcanism, earthquakes and mountain building. Huge sheets of creeping ice, tropical coral reefs and even salt water lagoons are all part of our province's past.
These exciting events are all recorded in the rocks of the province.