also.b.) The BIF deposits in MN, WI, and MI were called the “Superior-type” iron ore in early publications in the US. Was that because it was the best iron ore?c.) Are BIF deposits simply one of those “freak” conditions which were in existence only in North America?
I do believe although it is not common that they can over heat and catch fire so always best to air on the side of caution.
Are Electric Blankets Dangerous
a) two iron bearing minerals found in BIF deposits are (i) haematite, Fe2O3 (ii) magnetite, Fe3O4 b) The 'Superior' type of BIF is simply a type that typically occurs on the shores of Lake Superior. The Superior type differs from the Algoma type. SUPERIOR types are large, thick, extensive iron deposits across stable shelves and in broad basins. Total iron content in this class type exceeds 10^13 (10 trillion) tons! They can extend to over 105 square kilometres. Deposition occurs in relatively shallow marine conditions under transgressing seas. ALGOMA types are small lenticular iron deposits that are associated with volcanic rocks and turbidites. Iron content in this class type rarely exceeds 10^10 (10 billion) tons. They range in thickness from 10-100 metres. Deposition occurs in island arc/back arc basins and intracratonic rift zones. c)No, BIF deposits are found in other parts of the world. ITABIRITE iron ore deposits are another type of BIF which are typically found in Pico de Itabirito in Brazil. They tend to be associated with schistose rocks occur also in Africa.
I do believe although it is not common that they can over heat and catch fire so always best to air on the side of caution.
Yes they can be, and have heard that for a long time. In fact, many doctors will advise their pregnant patients not to use them as they can harm a fetus. They also dry out your skin really bad.
Are Electric Blankets Dangerous
a) two iron bearing minerals found in BIF deposits are (i) haematite, Fe2O3 (ii) magnetite, Fe3O4 b) The 'Superior' type of BIF is simply a type that typically occurs on the shores of Lake Superior. The Superior type differs from the Algoma type. SUPERIOR types are large, thick, extensive iron deposits across stable shelves and in broad basins. Total iron content in this class type exceeds 10^13 (10 trillion) tons! They can extend to over 105 square kilometres. Deposition occurs in relatively shallow marine conditions under transgressing seas. ALGOMA types are small lenticular iron deposits that are associated with volcanic rocks and turbidites. Iron content in this class type rarely exceeds 10^10 (10 billion) tons. They range in thickness from 10-100 metres. Deposition occurs in island arc/back arc basins and intracratonic rift zones. c)No, BIF deposits are found in other parts of the world. ITABIRITE iron ore deposits are another type of BIF which are typically found in Pico de Itabirito in Brazil. They tend to be associated with schistose rocks occur also in Africa.
