Michigan

Michigan ⁱ/ˈmɪʃᵻɡən/ is a state located in the Great Lakes and midwestern regions of the United States. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake". Michigan is the tenth most populous of the 50 United States, with the 11th most extensive total area (the largest state by total area east of the Mississippi River). Its capital is Lansing, and the largest city is Detroit.

Michigan is the only state to consist of two peninsulas. The Lower Peninsula, to which the name Michigan was originally applied, is often noted to be shaped like a mitten. The Upper Peninsula (often referred to as "the U.P.") is separated from the Lower Peninsula by the Straits of Mackinac, a five-mile (8 km) channel that joins Lake Huron to Lake Michigan. The two peninsulas are connected by the Mackinac Bridge. The state has the longest freshwater coastline of any political subdivision in the world, being bounded by four of the five Great Lakes, plus Lake Saint Clair. As a result, it is one of the leading U.S. states for recreational boating. Michigan also has 64,980 inland lakes and ponds. A person in the state is never more than six miles (9.7 km) from a natural water source or more than 85 miles (137 km) from a Great Lakes shoreline.

Flint, Michigan

Flint is the largest city and county seat of Genesee County, Michigan. Located along the Flint River, 66 miles (106 km) northwest of Detroit, it is the largest city in the Flint/Tri-Cities region of Michigan. According to the 2010 census, Flint has a population of 102,434, making it the seventh largest city in Michigan. The Flint metropolitan area is located entirely within Genesee County. It is the fourth largest metropolitan area in Michigan with a population of 425,790 in 2010.

Founded as a village by fur trader Jacob Smith in 1819, Flint became a major lumbering area on the historic Saginaw Trail during the 19th century, and incorporated as a city in 1855. It later became a leading manufacturer of carriages and other vehicles earning it the nickname "Vehicle City".

In 1908, William Crapo Durant formed General Motors in Flint, and it was later the home of the Flint Sit-Down Strike of 1936–37 that played a vital role in the formation of the United Auto Workers. After World War II, Flint became an automobile manufacturing powerhouse for GM's Buick and Chevrolet divisions, both of which were founded in Flint. However, by the late 1980s the city sank into a deep economic depression after GM closed and demolished several factories in the area, the effects of which remain today.

Flint

Flint is a hard, sedimentary cryptocrystalline form of the mineral quartz, categorized as a variety of chert. It occurs chiefly as nodules and masses in sedimentary rocks, such as chalks and limestones. Inside the nodule, flint is usually dark grey, black, green, white or brown in colour, and often has a glassy or waxy appearance. A thin layer on the outside of the nodules is usually different in colour, typically white and rough in texture. From a petrological point of view, "flint" refers specifically to the form of chert which occurs in chalk or marly limestone. Similarly, "common chert" (sometimes referred to simply as "chert") occurs in limestone.

Origin

The exact mode of formation of flint is not yet clear but it is thought that it occurs as a result of chemical changes in compressed sedimentary rock formations, during the process of diagenesis. One hypothesis is that a gelatinous material fills cavities in the sediment, such as holes bored by crustaceans or molluscs and that this becomes silicified. This hypothesis certainly explains the complex shapes of flint nodules that are found. The source of dissolved silica in the porous media could be the spicules of silicious sponges. Certain types of flint, such as that from the south coast of England, contain trapped fossilised marine flora. Pieces of coral and vegetation have been found preserved like amber inside the flint. Thin slices of the stone often reveal this effect.

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Genesee County

Genesee County is the name of two counties in the United States of America: