Pressure of mountain building lead to lineation and fractures.
The super continent that was made up of all continents connected at once. Pangea later split apart because of plates shifting.
When Pangea started to split cracks formed in rocks, melted Basalt would file the cracks and harden to create Basalt Dikes.
Large mountain range forms in western United States stretching from Washington to lower California.
The last of a long line of glaciers in northern Maine, after these glaciers melted no others would form in Maine for a long time.
The last glaciers that had formed in Maine melted and disappeared forever.
First dinosaurs walked the earth and became extinct around 69 million years ago from today.