Circum-Superior Belt mantle plume that was the source for the 1,880 million-year-old magmatism in the Circum-Superior Belt. The Circum-Superior Belt is the host for widespread mineral deposits, including copper, nickel and platinum group elements. However, the origins of this widespread mineralization is unknown. The Thompson Belt in Manitoba is one of the most comprehensive nickel producing zones on Earth. It has the potential to contain platinum group elements, but the age of the mafic-ultramafic volcanic rocks comprising the nickel deposits are not well known. Since its foundation during the 1950s, numerous mining operations throughout the Thompson Belt have produced over four billion
Circum-Baikal Railway the Circum-Baikal route are attracted by the numerous nature reserves, including the rocky formations such as "Белая выемка". In the settlements along the Circum-Baikal, especially in Maritui, a number of early twentieth-century items in the modernist style are preserved. The following establishments are also located on the Circum-Baikal: The 100th anniversary of the railway was celebrated in the autumn of 2005. For this event the Baikal station was reconstructed, in which an exhibit was opened, devoted to the Circum-Baikal. The Sludyanka station was also rebuilt. Circum-Baikal Railway The Circum-Baikal Railway (, abbreviated "КБЖД") is a historical railway in the Irkutsk