User:Geo Swan/Magdalen shelf

The Magdalen Shelf is a geologic formation under the Gulf of St. Lawrence. It is part of the Fundy Epieugeosyncline. The shelf has been described as fan shaped. Recent glaciations scraped off rocks to a layer of red Permian sandstone, overlaid by sediments deposited after the Laurentian glaciation. Buoyant layers of rock salt, under the Permian sandstone, have caused salt domes to rise, including under the Magdalen Islands.

The shallow water over the shelf gives the Magdalen Islands warm summertime temperatures.