Rockall part of the deeply eroded Rockall Igneous Centre that was formed as part of the North Atlantic Igneous Province, approximately 55 million years ago, when the ancient continent of Laurasia was split apart by plate tectonics. Greenland and Europe separated and the northeast Atlantic Ocean was formed between them, eventually leaving Rockall as an isolated islet. The RV "Celtic Explorer" surveyed the Rockall Bank in 2003. The Irish Light Vessel "Granuaile" (the same name as the steamer on the RIA 1896 botany survey) was chartered by the Geological Survey of Ireland, on behalf of the Department of Communications, Marine and
Oil Trough, Arkansas Oil Trough, Arkansas Oil Trough is a town in Independence County, Arkansas, United States. The population was 260 at the 2010 census. The town is believed to have acquired its name in the early 19th century from a trough used to render bear fat, which was sold to customers in New Orleans. Oil Trough has been noted for its unusual place name. Odell Pollard, a retired attorney from Searcy and the Arkansas Republican Party chairman from 1966–1970, graduated from Oil Trough High School. Oil Trough is located on the south bank of the White River along Arkansas Highway 14 between