Many Catholic churches traditionally move St Patrick's Day to another date if March 17 falls during Holy Week. Many immigrants from Ireland fled to other parts of the world, including Australia, Canada, the United Kingdom and the United States, in the 19th and 20th centuries.
Making the world better, one answer at a time. Passive continental margins are not areas of convergence. There is little volcanic and earthquake activity on passive margins. Active margins are areas of convergence where one plate is descending beneath another. They are associated with volcanic and earthquake activity.
Continental margin (= Rifted margin ?) = The ocean floor that is between the shore line and the abyssal ocean floor, including various provinces: the continental shelf, continental borderland, continental slope and the continental rise.asin = A low area in the Earth's crust, of tectonic origin, in which sediments have accumulated, e.g. a circular centrocline such as the Michigan Basin, a fault bordered intermontane feature such as the Bighorn Basin of Wyoming, or a linear crustal downwarp such as the Appalachian Basin.