Definition of Laurentia
- He explained that east of the Hudson River, the geology can get fairly mixed up. Many of the rocks there were produced by a huge collision of tectonic plates about 450 million years ago, called the tectonic orogeny, that sent an arc of islands crashing into the eastern coast of North America or, more correctly, Laurentia.
- —James Gorman, New York Times, 16 Nov. 2001
- The large blue area in the figure is roughly coincident with Laurentia, the predecessor of the present North American continent.
- —Suzan van der Lee, Science, 9 Nov. 2001