Corned beef remains popular in the United Kingdom and countries with British culinary traditions and is commonly used in sandwiches, corned beef hash or eaten with chips and pickles. It also remains especially popular in Canada in a variety of dishes, perhaps most prominently Montreal smoked meat.anned corned beef produced in Argentina for export to in New Zealand, 1946. Although it ceased to be an important commodity in the 20th century Atlantic trade due in part to the abolition of slavery, corned beef production and its canned form remained important as a food source during World War II.
In general, metamorphic rocks do not undergo significant changes in chemical composition during metamorphism. The changes in mineral assemblages are due to changes in the temperature and pressure conditions of metamorphism.
138Metamorphism is the isochemical process by which rocks are changed by either heat or pressure, or both heat and pressure. The chemical composition of the parent rock will be the same as the metamorphic rock produced.The rock undergoes the very slow process of solid-state recrystallisation without melting.ifferent temperatures and pressures cause new minerals to grow in rocks that have the same composition. The minerals produced are directly related to pressure and temperature conditions. The lower temperature limit for metamorphism is between 200 and 150 o C. Below these temperatures, changes are part of diagenesis.