Since there are many possible measures of the price level, there are many possible measures of price inflation. Most frequently, the term inflation refers to a rise in a broad price index representing the overall price level for goods and services in the economy. The Consumer Price Index (CPI), the Personal Consumption Expenditures Price Index (PCEPI) and the GDP deflator are some examples of broad price indices.
Volcanic Mountains. As the name suggests, volcanic mountains are formed by volcanoes. Volcanic Mountains are formed when molten rock (magma) deep within the earth, erupts, and piles upon the surface. Magna is called lava when it breaks through the earth's crust.When the ash and lava cools, it builds a cone of rock.olcanic Mountains are formed when molten rock (magma) deep within the earth, erupts, and piles upon the surface. Magna is called lava when it breaks through the earth's crust. When the ash and lava cools, it builds a cone of rock.
Rocks and the Rock Cycle. 1  Metamorphic Rocks-Metamorphic rocks are formed by great heat and pressure. 2  They are generally found inside the Earth's crust where there is enough heat and pressure to form the rocks. 3  Metamorphic rocks are often made from other types of rock. They are generally found inside the Earth's crust where there is enough heat and pressure to form the rocks. 2  Metamorphic rocks are often made from other types of rock. 3  For example, shale, a sedimentary rock, can be changed, or metamorphosed, into a metamorphic rock such as slate or gneiss.