1.
Michigan
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Michigan /ˈmɪʃᵻɡən/ is a state in the Great Lakes and Midwestern regions of the United States. The name Michigan is the French form of the Ojibwa word mishigamaa, Michigan is the tenth most populous of the 50 United States, with the 11th most extensive total area. Its capital is Lansing, and its 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 noted to be shaped like a mitten. The Upper Peninsula is separated from the Lower Peninsula by the Straits of Mackinac, 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, 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 from a natural water source or more than 85 miles from a Great Lakes shoreline. What is now the state of Michigan was first settled by Native American tribes before being colonized by French explorers in the 17th century, the area was organized as part of the larger Northwest Territory until 1800, when western Michigan became part of the Indiana Territory. Eventually, in 1805, the Michigan Territory was formed, which lasted until it was admitted into the Union on January 26,1837, the state of Michigan soon became an important center of industry and trade in the Great Lakes region and a popular immigrant destination. Though Michigan has come to develop an economy, it is widely known as the center of the U. S. automotive industry. When the first European explorers arrived, the most populous tribes were Algonquian peoples, which include the Anishinaabe groups of Ojibwe, Odaawaa/Odawa, the three nations co-existed peacefully as part of a loose confederation called the Council of Three Fires. The Ojibwe, whose numbers are estimated to have been between 25,000 and 35,000, were the largest, French voyageurs and coureurs des bois explored and settled in Michigan in the 17th century. The first Europeans to reach what became Michigan were those of Étienne Brûlés expedition in 1622, the first permanent European settlement was founded in 1668 on the site where Père Jacques Marquette established Sault Ste. Marie, Michigan as a base for Catholic missions, missionaries in 1671–75 founded outlying stations at Saint Ignace and Marquette. Jesuit missionaries were received by the areas Indian populations, with relatively few difficulties or hostilities. In 1679, Robert Cavelier, Sieur de la Salle built Fort Miami at present-day St. Joseph, in 1691, the French established a trading post and Fort St. Joseph along the St. Joseph River at the present day city of Niles. The hundred soldiers and workers who accompanied Cadillac built a fort enclosing one arpent, cadillacs wife, Marie Thérèse Guyon, soon moved to Detroit, becoming one of the first European women to settle in the Michigan wilderness. The town quickly became a major fur-trading and shipping post, the Église de Saint-Anne was founded the same year
2.
Upper Peninsula of Michigan
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The Upper Peninsula is the northern of the two major peninsulas that make up the U. S. state of Michigan. It may also be referred to as the UP or Upper Michigan, the peninsula is bounded on the north by Lake Superior, on the east by the St. Marys River, on the southeast by Lake Michigan and Lake Huron, and on the southwest by Wisconsin. The Upper Peninsula contains 29% of the area of Michigan. Residents are frequently called Yoopers and have a regional identity. Large numbers of French Canadian, Finnish, Swedish, Cornish, the peninsula includes the only counties in the United States where a plurality of residents claim Finnish ancestry. Ordered by size, the peninsulas largest cities are Marquette, Sault Ste, Marie, Escanaba, Menominee, Houghton, and Iron Mountain. The land and climate are not very suitable for agriculture because of the harsh winters. The economy has been based on logging, mining, and tourism, most mines have closed since the golden age from 1890 to 1920. The land is forested and logging remains a major industry. The first known inhabitants of the Upper Peninsula were tribes speaking Algonquian languages and they arrived roughly around A. D.800 and subsisted chiefly from fishing. Early tribes included the Menominee, Nocquet, and the Mishinimaki, Étienne Brûlé of France was probably the first European to visit the peninsula, crossing the St. Marys River around 1620 in search of a route to the Far East. French colonists laid claim to the land in the 17th century, establishing missions, following the end of the French and Indian War in 1763, the territory was ceded to Great Britain. Sault Ste Marie, Michigan is the oldest European settlement in Michigan, American Indian tribes formerly allied with the French were dissatisfied with the British occupation, which brought new territorial policies. Whereas the French cultivated alliances among the Indians, the British postwar approach was to treat the tribes as conquered peoples, in 1763, tribes united in Pontiacs Rebellion to try to drive the British from the area. In 1764, they began negotiations with the British which resulted in temporary peace, although the Upper Peninsula nominally became United States territory with the 1783 Treaty of Paris, the British did not give up control until 1797 under terms of the Jay Treaty. As an American territory, the Upper Peninsula was still dominated by the fur trade, john Jacob Astor founded the American Fur Company on Mackinac Island in 1808, however, the industry began to decline in the 1830s as beaver and other game were overhunted. When the Michigan Territory was first established in 1805, it included only the Lower Peninsula, in 1819, the territory was expanded to include the remainder of the Upper Peninsula, all of Wisconsin, and part of Minnesota. When Michigan was preparing for statehood in the 1830s, the boundaries proposed corresponded to the territorial boundaries
3.
Lake Superior
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Lake Superior is the largest of the Great Lakes of North America. The lake is shared by the Canadian province of Ontario to the north, the US state of Minnesota to the west and it is generally considered the largest freshwater lake in the world by surface area. It is the worlds third-largest freshwater lake by volume and the largest by volume in North America, the Ojibwe call the lake gichi-gami, meaning be a great sea. Henry Wadsworth Longfellow wrote the name as Gitche Gumee in The Song of Hiawatha, as did Gordon Lightfoot in his song, according to other sources the actual Ojibwe name is Ojibwe Gichigami or Anishinaabe Gichigami. The 1878 dictionary by Father Frederic Baraga, the first one written for the Ojibway language, the first French explorers approaching the great inland sea by way of the Ottawa River and Lake Huron during the 17th century referred to their discovery as le lac supérieur. Properly translated, the expression means Upper Lake, that is, the lake was also called Lac Tracy by 17th century Jesuit missionaries. Lake Superior empties into Lake Huron via the St. Marys River, Lake Superior is the largest freshwater lake in the world in area, and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa. Lake Superior has an area of 31,700 square miles. It has a length of 350 statute miles and maximum breadth of 160 statute miles. Its average depth is 80.5 fathoms with a depth of 222.17 fathoms. Lake Superior contains 2,900 cubic miles of water, there is enough water in Lake Superior to cover the entire land mass of North and South America to a depth of 30 centimetres. The shoreline of the lake stretches 2,726 miles, while the temperature of the surface of Lake Superior varies seasonally, the temperature below 110 fathoms is an almost constant 39 °F. This variation in temperature makes the lake seasonally stratigraphic, twice per year, however, the water column reaches a uniform temperature of 39 °F from top to bottom, and the lake waters thoroughly mix. This feature makes the lake dimictic, because of its volume, Lake Superior has a retention time of 191 years. Annual storms on Lake Superior regularly feature wave heights of over 20 feet, waves well over 30 feet have been recorded. The lake is fed by over 200 rivers, the largest include the Nipigon River, the St. Louis River, the Pigeon River, the Pic River, the White River, the Michipicoten River, the Bois Brule River and the Kaministiquia River. Lake Superior drains into Lake Huron via the St. Marys River, there are rapids at the rivers upper end where the river bed has a relatively steep gradient. The Soo Locks were built to enable ships to bypass the rapids, the lakes average surface elevation is 600 feet above sea level
4.
Copper
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Copper is a chemical element with symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with high thermal and electrical conductivity. A freshly exposed surface of copper has a reddish-orange color. Copper is one of the few metals that occur in nature in directly usable metallic form as opposed to needing extraction from an ore and this led to very early human use, from c.8000 BC. Copper used in buildings, usually for roofing, oxidizes to form a green verdigris, Copper is sometimes used in decorative art, both in its elemental metal form and in compounds as pigments. Copper compounds are used as agents, fungicides, and wood preservatives. Copper is essential to all living organisms as a trace dietary mineral because it is a key constituent of the enzyme complex cytochrome c oxidase. In molluscs and crustaceans, copper is a constituent of the blood pigment hemocyanin, replaced by the hemoglobin in fish. In humans, copper is found mainly in the liver, muscle, the adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight. The filled d-shells in these elements contribute little to interatomic interactions, unlike metals with incomplete d-shells, metallic bonds in copper are lacking a covalent character and are relatively weak. This observation explains the low hardness and high ductility of single crystals of copper, at the macroscopic scale, introduction of extended defects to the crystal lattice, such as grain boundaries, hinders flow of the material under applied stress, thereby increasing its hardness. For this reason, copper is supplied in a fine-grained polycrystalline form. The softness of copper partly explains its high conductivity and high thermal conductivity. The maximum permissible current density of copper in open air is approximately 3. 1×106 A/m2 of cross-sectional area, Copper is one of a few metallic elements with a natural color other than gray or silver. Pure copper is orange-red and acquires a reddish tarnish when exposed to air, as with other metals, if copper is put in contact with another metal, galvanic corrosion will occur. A green layer of verdigris can often be seen on old structures, such as the roofing of many older buildings. Copper tarnishes when exposed to sulfur compounds, with which it reacts to form various copper sulfides. There are 29 isotopes of copper, 63Cu and 65Cu are stable, with 63Cu comprising approximately 69% of naturally occurring copper, both have a spin of 3⁄2
5.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
6.
Logging
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Logging is the cutting, skidding, on-site processing, and loading of trees or logs onto trucks or skeleton cars. In forestry, the logging is sometimes used in a narrow sense concerning the logistics of moving wood from the stump to somewhere outside the forest. However, in usage, the term may be used to indicate a range of forestry or silviculture activities. Illegal logging refers to what in forestry might be called timber theft by the timber mafia and it can also refer to the harvesting, transportation, purchase, or sale of timber in violation of laws. Clearcut logging is not necessarily considered a type of logging but a harvesting or silviculture method, in the forest products industry logging companies may be referred to as logging contractors, with the smaller, non-union crews referred to as gyppo loggers. Cutting trees with the highest value and leaving those with lower value and it is sometimes called selective logging, and confused with selection cutting, the practice of managing stands by harvesting a proportion of trees. Logging usually refers to above-ground forestry logging, submerged forests exist on land that has been flooded by damming to create reservoirs. Such trees are logged using underwater logging or by the lowering of the reservoirs in question, ootsa Lake and Williston Lake in British Columbia, Canada are notable examples where timber recovery has been needed to remove inundated forests. Clearcutting, or clearfelling, is a method of harvesting that removes all the standing trees in a selected area. Silviculture objectives for clearcutting, and a focus on forestry distinguish it from deforestation, other methods include shelterwood cutting, group selective, single selective, seed-tree cutting, patch cut, and retention cutting. The above operations can be carried out by different methods, of which the three are considered industrial methods, Trees are felled and then delimbed and topped at the stump. The log is then transported to the landing, where it is bucked and loaded on a truck and this leaves the slash in the cut area, where it must be further treated if wild land fires are of concern. This ability is due to the advancement in the style felling head that can be used, the trees are then delimbed, topped, and bucked at the landing. This method requires that slash be treated at the landing, in areas with access to cogeneration facilities, the slash can be chipped and used for the production of electricity or heat. Full-tree harvesting also refers to utilization of the tree including branches. Cut-to-length logging is the process of felling, delimbing, bucking, harvesters fell the tree, delimb, and buck it, and place the resulting logs in bunks to be brought to the landing by a skidder or forwarder. This method is available for trees up to 900 mm in diameter. Harvesters are employed effectively in level to steep terrain
7.
Michigan Technological University
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Michigan Technological University is a public research university located in Houghton, Michigan, United States. Its main campus sits on 925 acres on a bluff overlooking Portage Lake, Michigan Tech was founded in 1885 as the first post-secondary institution in the Upper Peninsula of Michigan, and was created to train mining engineers to operate the local copper mines. Science, technology, forestry and business have been added to the engineering disciplines. US News and World Report ranked Michigan Techs undergraduate program 116th in the based on peer assessment, student selectivity, financial resources. Michigan Tech was also rated among the Best in the Midwest by The Princeton Review, Michigan Techs athletic teams are nicknamed the Huskies and compete primarily in the NCAA Division II Great Lakes Intercollegiate Athletic Conference. The mens hockey team competes in Division I as a member of the Western Collegiate Hockey Association, the womens basketball team were national runners-up in 2011. Michigan Tech was founded in 1885 as the Michigan Mining School, after much agitation by Jay Abel Hubbell, the state legislature established the school to train mining engineers. Hubbell donated land for the schools first buildings, the school started with four faculty members and twenty-three students. It was housed in the Houghton Fire Hall from 1886 through 1889, a few years after the schools creation, enrollment grew to such a point that its name no longer reflected its purpose. The name was changed to the Michigan College of Mines in 1897. By 1931 enrollment had reached nearly 600, during the next few years, due to the Great Depression, money was scarce, causing department heads and even the president of the university, William Hotchkiss, to take pay cuts. Dillman was president from 1935 to 1956, during this time, the school underwent many notable changes, including the construction of the Memorial Union Building and purchase of an ice rink and golf course. Around 1948, enrollment passed 2000 students total, in 1956, J. Robert Van Pelt became the new president of the university. He restarted many PhD programs and created a focus on research and this included the schools first analog computation class in 1956–1957. In the final years of his presidency, the changed from a college to a university. The change from the Michigan College of Mining and Technology was necessary for two reasons, according to Van Pelt, First, the college had expanded too greatly and the current name was no longer an accurate title. Also, including mining in the name of the college was misleading, the name Michigan Technological University was chosen in order to retain the nickname Michigan Tech that had already been in use since 1927. Although engineering still accounts for some 59 percent of all enrollment as of fall 2010, along with its new name, the school also gained new constitutional status in 1964
8.
Finlandia University
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Finlandia University is a university in Hancock, Michigan, United States, and the only private university in the Upper Peninsula. Founded in 1896 as The Suomi College and Theological Seminary, it is affiliated with the Evangelical Lutheran Church in America, Suomi College was founded on 8 September 1896 by J. K. Nikander. During the 1880s, large numbers of Finns immigrated to Hancock, the colleges role was to preserve Finnish culture, train Lutheran ministers and teach English. During the 1920s, Suomi College became an arts college and in 1958. On July 1,2000, Suomi College changed its name to Finlandia University, the cornerstone of Old Main, the first building erected at Suomi College, was laid on May 30,1898. Jacobsville sandstone, quarried at the Portage Entry of the Keweenaw waterway, was brought by barge, cut, dedicated on January 21,1900, it contained a dormitory, kitchen, laundry, classrooms, offices, library, chapel, and lounge. The burgeoning college quickly outgrew this building, in 1901 a frame structure, housing a gym, meeting hall, and music center, was erected on an adjacent lot. The frame building was demolished when Nikander Hall, named for Suomis founder, was constructed in 1939, the hall was designed by the architectural firm of Eliel Saarinen and J. Robert F. Swanson. Finlandia University has been a university of the Lutheran church since its inception, in 1988, the University became affiliated with the Evangelical Lutheran Church in America. The curriculum, campus events, and the community explore the value of faith, vocation, Finlandia University is accredited by the Higher Learning Commission of the North Central Association for Colleges and Schools. In 1996, the university transitioned from a university to a four-year university. Finlandia University is in the Upper Peninsula of Michigan, located in the state’s northernmost city, surrounded by pristine forests, the university campus is just minutes from the southern shore of Lake Superior, the largest body of fresh water on earth. Athletics are an important part of Finlandia University, there are 14 varsity sports at Finlandia. Womens athletics include, basketball, cross country running, golf, ice hockey, soccer, mens athletics include baseball, basketball, cross country running, football, golf, ice hockey and soccer. Finlandia University is part of the NCAA Division III athletics, the Finnish American Historical Archives are located here. The University publishes The Finnish American Reporter, a monthly English language journal featuring news, the Lions Den of North Wind Books offers an extensive collection of quality adult and childrens fiction and nonfiction publications, and textbooks. It also sells Finnish functional design items for the home, Finlandia University Finlandia University Athletics Finnish American Heritage Center Jutila Center North Wind Books
9.
Isle Royale
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Isle Royale /ˌaɪl ˈrɔɪ. əl/ is an island of the Great Lakes, located in the northwest of Lake Superior, and part of the U. S. state of Michigan. The island and the 450 surrounding smaller islands and waters make up Isle Royale National Park, the island is 45 miles long and 9 miles wide, with an area of 206. It is defined by the United States Census Bureau as Census Tract 9603 of Keweenaw County, as of the 2000 census there was no permanent population. After the island was made a park, some existing residents were allowed to stay. Ferries from Michigan and Minnesota land at Rock Harbor on the end of the island, this has a lodge, campground. Ferries from Minnesota also run to Windigo on the western end, in 1875, Isle Royale was set off from Keweenaw County, as a separate county, Isle Royale County. In 1897, the county was dissolved, and the island was reincorporated into Keweenaw County, the highest point on the island is Mount Desor at 1,394 feet, or about 800 feet above lake level. Isle Royale is within about 15 miles of the Canadian and Minnesotan shores of the lake, there are seasonal passenger ferry services to the island from Grand Portage, Minnesota, Copper Harbor, Michigan, and Houghton, Michigan. There is also a sea plane service. There are no roads on the island, and wheeled vehicles or devices, Rock Harbor has wheeled carts available to move personal belongings from the Rock Harbor marina to the cabins and hotel. Also the National Park Service employs tractors and a few World War II jeeps to move items around the station area at Windigo, Rock Harbor. Topsoil tends to be thin, which favors trees that have horizontal root patterns such as fir, white spruce. Siskiwit Lake is the largest lake on the island and it has cold, clear water which is relatively low in nutrients. Siskiwit Lake contains several islands, including Ryan Island, the largest, which contains Moose Flats, a seasonal pond, which contains Moose Boulder. When Moose Flats is a pond, Moose Boulder becomes the largest island in the largest lake on the largest island in the largest lake on the largest island in the largest lake in the world. Chicken Bone Lake Lake Desor Feldtmann Lake Intermediate Lake Lake Ritchie Sargent Lake The island is composed largely of ridges, the main ridge, Greenstone Ridge, is over 1,000 feet in many places. Greenstone belts are exposed, with rounded stones of chlorastrolite or greenstone near, according to the National Park Service, the north sides of the ridges tend to be steeper than the south sides. Coastal areas were submerged beneath prehistoric lake waters, and contain many tumbled boulders
10.
Lava
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Lava is the molten rock expelled by a volcano during an eruption. The resulting rock after solidification and cooling is called lava. The molten rock is formed in the interior of planets, including Earth. The source of the heat melts the rock within the earth is geothermal energy. When first erupted from a vent, lava is a liquid usually at temperatures from 700 to 1,200 °C. A lava flow is an outpouring of lava, which is created during a non-explosive effusive eruption. When it has stopped moving, lava solidifies to form igneous rock, the term lava flow is commonly shortened to lava. Although lava can be up to 100,000 times more viscous than water, lava can flow great distances before cooling and solidifying because of its thixotropic, explosive eruptions produce a mixture of volcanic ash and other fragments called tephra, rather than lava flows. The word lava comes from Italian, and is derived from the Latin word labes which means a fall or slide. The first use in connection with extruded magma was apparently in an account written by Francesco Serao on the eruption of Vesuvius between May 14 and June 4,1737. Serao described a flow of lava as an analogy to the flow of water. The composition of almost all lava of the Earths crust is dominated by silicate minerals, mostly feldspars, olivine, pyroxenes, amphiboles, micas, igneous rocks, which form lava flows when erupted, can be classified into three chemical types, felsic, intermediate, and mafic. These classes are primarily chemical, however, the chemistry of lava also tends to correlate with the temperature, its viscosity. Felsic or silicic lavas such as rhyolite and dacite typically form lava spines, most silicic lava flows are extremely viscous, and typically fragment as they extrude, producing blocky autobreccias. Felsic magmas can erupt at temperatures as low as 650 to 750 °C, unusually hot rhyolite lavas, however, may flow for distances of many tens of kilometres, such as in the Snake River Plain of the northwestern United States. Intermediate or andesitic lavas are lower in aluminium and silica, and usually somewhat richer in magnesium, intermediate lavas form andesite domes and block lavas, and may occur on steep composite volcanoes, such as in the Andes. Poorer in aluminium and silica than felsic lavas, and also commonly hotter, greater temperatures tend to destroy polymerized bonds within the magma, promoting more fluid behaviour and also a greater tendency to form phenocrysts. Higher iron and magnesium tends to manifest as a darker groundmass, mafic or basaltic lavas are typified by their high ferromagnesian content, and generally erupt at temperatures in excess of 950 °C
11.
Native copper
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Native copper is an uncombined form of copper which occurs as a natural mineral. Copper is one of the few elements to occur in native form, although it most commonly occurs in oxidized states. Native copper was an important ore of copper in historic times and was used by pre-historic peoples, native copper occurs rarely as isometric cubic and octahedral crystals, but more typically as irregular masses and fracture fillings. It has a reddish, orangish, and/or brownish color on fresh surfaces and its specific gravity is 8.9 and its hardness is 2. 5–3. The mines of the Keweenaw native copper deposits of Upper Michigan were major producers in the 19th and early 20th centuries. The first commercial mines in the Keweenaw Peninsula opened in the 1840s, isle Royale in western Lake Superior was also a site of many tons of native copper. Some of it was extracted by native peoples, but only one of several attempts at mining turned a profit there. Another major native copper deposit is in Coro Coro, Bolivia, the name copper comes from the Greek kyprios, of Cyprus, the location of copper mines since pre-historic times
12.
Conglomerate (geology)
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Conglomerates form by the consolidation and lithification of gravel. The size and composition of the fraction of a conglomerate may or may not vary in composition, sorting. In some conglomerates, the gravel-size class consist almost entirely of what were clay clasts at the time of deposition, conglomerates can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. A sedimentary rock composed largely of gravel is first named according to the roundness of the gravel, if the gravel clasts that comprise it is largely well-rounded to subrounded, it is a conglomerate. If the gravel clasts that comprise it are largely angular, it is a breccia, such breccias can be called sedimentary breccias to differentiate them from other types of breccia, e. g. volcanic and fault breccias. Sedimentary rocks that contain a mixture of rounded and angular gravel clasts are sometimes called breccio-conglomerate, conglomerates are rarely composed entirely of gravel-size clasts. Typically, the space between the gravel-size clasts is filled by a mixture composed of varying amounts of silt, sand, paraconglomerates are also often unstratified and can contain more matrix than gravel clasts. If the gravel clasts of a conglomerate are in contact with each other, unlike paraconglomerates, orthoconglomerates are typically cross-bedded and often well-cemented and lithified by either calcite, hematite, quartz, or clay. The differences between paraconglomerates and orthoconglomerates reflect differences in how they are deposited, paraconglomerates are commonly either glacial tills or debris flow deposits. Orthoconglomerates are typically associated with aqueous currents, conglomerates are also classified according to the composition of their clasts. A conglomerate or any clastic sedimentary rock that consists of a rock or mineral is known as either a monomict, monomictic, oligomict. If the conglomerate consists of two or more different types of rocks, minerals, or combination of both, it is known as either a polymict or polymictic conglomerate. If a polymictic conglomerate contains an assortment of the clasts of metastable and unstable rocks and minerals, two recognized types of type of intraformational conglomerates are shale-pebble and flat-pebble conglomerates. Finally, conglomerates are often differentiated and named according to the dominant clast size comprising them, conglomerates are deposited in a variety of sedimentary environments. In turbidites, the part of a bed is typically coarse-grained. In this setting, conglomerates are normally very well sorted, well-rounded, conglomerates are normally present at the base of sequences laid down during marine transgressions above an unconformity, and are known as basal conglomerates. They represent the position of the shoreline at a time and are diachronous. Conglomerates deposited in environments are typically well rounded and well sorted
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