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Mount Rushmore National Memorial is located along the northeast edge of what is known as the Harney Peak Granite Batholith in the Black Hills of South Dakota. A batholith is a geologic feature that formed by the cooling of a large igneous body of magma below the earth's surface; if a similar igneous body reaches the earth's surface, it would form a volcanic feature such as a lava flow. The Black Hills magma was emplaced into the older "host" mica schist rocks during Precambrian time, approximately 1.7 billion years ago!

Source: National Park Service

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What monumental sculpture is made of coarse grained crystalline rock?

There are many. A great example, however, is Mt. Rushmore; the likenesses of the presidents are carved in granite, a coarse-grained intrusive igneous rock.


What is the economic use of metamorphic rocks?

Following are examples of three metamorphic rocks and a list of their uses.Marble is a metamorphic rock that is used to make floor tiles, counter tops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings.Slate is another metamorphic rock that is used in buildings for floor and roofing tiles, and it was once used for blackboards.Quartzite is used as a source of silica; other forms of metamorphic rocks are useful as building components, monuments, counter tops, and facings.


What presidents are carved into the rock?

The faces of four famous presidents are carved into Mount Rushmore in South Dakota: George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln.


What famous national monument is carved in granite in the Black Hills of South Dakota?

Mount Rushmore National Memorial is carved into the granite rock face of a mountain in the Black Hills of South Dakota. It features the sculpted heads of four United States presidents: George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln.


How are sedimentry metamorphic and igneous rocks used for?

1. Valuable or economically important mineral deposits may be associated with igneous rock bodies. Examples are disseminated magma tic deposits of diamonds of South Africa. Deposits of chromites in Montana. answer in sedimentary rocks: 1. Coal is burnt to create energy. Gypsum is used to make plaster of Paris. Sandstone and limestone are used as building stone. Limestone is also used for hard core in roads. Slate is used for roofing tiles. Clay is mixed with sand and used to make bricks. Iron ores are mined and smelted to create iron metal. Smectite clay is used as a digestive cure. Salt is an essential food answer in metamorphic rocks: 1. Marble is a metamorphic rock that is used to make floor tiles, counter tops and it is carved into statues and was used extensively in the building of the Roman Coliseum among other great historic buildings. Slate is another metamorphic rock that is used in buildings for floor tiles and roofing tiles and it was once used for blackboards. answered by: impyerno_hell@yahoo.com add me in friendster ok?