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Taum Sauk
Taum Sauk Mountain in the Saint Francois Mountains is the highest natural point in the U.S. state of Missouri at 1,772 feet (540 m). The topography of Taum Sauk is that of an elongated ridge with a NNW-SSE orientation rather than a peak. Description While relatively low in terms of elevation at compared to other peaks, Taum Sauk and the St. Francois range are true mountains, being the result of a volcanic orogeny. Whereas vertical relief in the rest of the Ozarks region is the result of erosion of sedimentary strata, the St. Francois are an ancient Precambrian igneous uplift several times older than the Appalachians. Geologists believe that Taum Sauk and its neighbors may be among the few areas in the US never to have been submerged in ancient seas. The peaks of the St. Francois range existed as islands in the shallow seaway throughout most of the Paleozoic Era as the sandstones, limestones, and shales typical of the Ozarks were deposited. Weathering and erosion of these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of U
A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby union club Other uses * Angle of list, the leaning to either port or starboard of a ship * List (information), an ordered collection of pieces of information ** List (abstract data type), a method to organize data in computer science * List on Sylt, previously called List, the northernmost village in Germany, on the island of Sylt * ''List'', an alternative term for ''roll'' in flight dynamics * To ''list'' a building, etc., in the UK it means to designate it a listed building that may not be altered without permission * Lists (jousting), the barriers used to designate the tournament area where medieval knights jousted * ''The Book of Lists'', an American series of books with unusual lists See also * The List (other) * Listing (di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleozoic
The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ''zōḗ'' (), "life", meaning "ancient life" ). It is the longest of the Phanerozoic eras, lasting from , and is subdivided into six geologic periods (from oldest to youngest): # Cambrian # Ordovician # Silurian # Devonian # Carboniferous # Permian The Paleozoic comes after the Neoproterozoic Era of the Proterozoic Eon and is followed by the Mesozoic Era. The Paleozoic was a time of dramatic geological, climatic, and evolutionary change. The Cambrian witnessed the most rapid and widespread diversification of life in Earth's history, known as the Cambrian explosion, in which most modern phyla first appeared. Arthropods, molluscs, fish, amphibians, reptiles, and synapsids all evolved during the Paleozoic. Life began in the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Mountain (Missouri)
Black Mountain is a summit in western Madison County in the U.S. state of Missouri. The peak has an elevation of . The St. Francis River flows past the east side of the mountain at an elevation of about 560 feet. Missouri Route E passes the east and south side of the mountain. The community of French Mills lies adjacent to the St. Francis just to the south of the mountain. Black Mountain has the name of the local Black family. See also * List of mountain peaks of Missouri This article comprises three sortable tables of the significant mountain peaks of Missouri. This article defines a significant mountain peak as a summit with at least of topographic prominence, and a major summit as a summit with at least of ... References Mountains of Madison County, Missouri Mountains of Missouri {{MadisonCountyMO-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sam A
Sam A () is a village in the northeastern New Territories of Hong Kong, named after the bay of Sam A Wan (). Administration Sam A is a recognized village under the New Territories Small House Policy. History The Tsang () of Sam A have the same ancestor with the Tsang of Ma Tseuk Leng Sheung and Lai Chi Wo.Antiquities Advisory Board. Historic Building AppraisalTsang Ancestral Hall, Sheung Ma Tseuk Leng/ref> In its heyday in the 1950s and 1960s, there were more than 200 residents in the village, but at the end of the 1960s most of the men left the village to seek employment in the United Kingdom and the Netherlands. Sam A is one of the seven Hakka villages of the Hing Chun Yeuk (), which comprises Kop Tong, Lai Chi Wo, Mui Tsz Lam, Ngau Shi Wu, Sam A, Siu Tan (), and So Lo Pun.Antiquities Advisory Board. Historic Building AppraisalHip Tin Temple & Hok Shan Monastery Lai Chi Wo, Sha Tau Kok/ref> Features Today, the Tsang ancestral hall and the abandoned three-village scho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topographic Prominence
In topography, prominence (also referred to as autonomous height, relative height, and shoulder drop in US English, and drop or relative height in British English) measures the height of a mountain or hill's summit relative to the lowest contour line encircling it but containing no higher summit within it. It is a measure of the independence of a summit. A peak's ''key col'' (the highest col surrounding the peak) is a unique point on this contour line and the ''parent peak'' is some higher mountain, selected according to various criteria. Definitions The prominence of a peak may be defined as the least drop in height necessary in order to get from the summit to any higher terrain. This can be calculated for a given peak in the following way: for every path connecting the peak to higher terrain, find the lowest point on the path; the ''key col'' (or ''key Saddle point, saddle'', or ''linking col'', or ''link'') is defined as the highest of these points, along all connecting pat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Orthography
English orthography is the writing system used to represent spoken English, allowing readers to connect the graphemes to sound and to meaning. It includes English's norms of spelling, hyphenation, capitalisation, word breaks, emphasis, and punctuation. Like the orthography of most world languages, English orthography has a broad degree of standardisation. This standardisation began to develop when movable type spread to England in the late 15th century. However, unlike with most languages, there are multiple ways to spell every phoneme, and most letters also have multiple pronunciations depending on their position in a word and the context. This is partly due to the large number of words that have been borrowed from a large number of other languages throughout the history of English, without successful attempts at complete spelling reforms, and partly due to accidents of history, such as some of the earliest mass-produced English publications being typeset by highly traine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piankeshaw
The Piankeshaw, Piankashaw or Pianguichia were members of the Miami tribe who lived apart from the rest of the Miami nation, therefore they were known as Peeyankihšiaki ("splitting off" from the others, Sing.: ''Peeyankihšia'' - "Piankeshaw Person"). When European settlers arrived in the region in the 1600s, the Piankeshaw lived in an area along the south central Wabash River that now includes western Indiana and Illinois. Their territory was to the north of Kickapoo (around Vincennes) and the south of the Wea (centered on Ouiatenon). They were closely allied with the Wea, another group of Miamis. The Piankashaw were living along the Vermilion River in 1743. History The ''first'' ''Peeyankihšionki'' or ''Piankeshaw Village'' ("Place of the Piankashaw") was at the confluence of the Peeyankihšiaki Siipiiwi ("River of the Peeyankihšiaki/Piankashaw, i.e. Vermilion River") and the Waapaahšiki Siipiiwi ("white shining", "pure white" or "River over white stones, i.e. Wabash River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratum
In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either '' bedding surfaces'' or ''bedding planes''.Salvador, A. ed., 1994. ''International stratigraphic guide: a guide to stratigraphic classification, terminology, and procedure. 2nd ed.'' Boulder, Colorado, The Geological Society of America, Inc., 215 pp. . Prior to the publication of the International Stratigraphic Guide, older publications have defined a stratum as either being either equivalent to a single bed or composed of a number of beds; as a layer greater than 1 cm in thickness and constituting a part of a bed; or a general term that includes both ''bed'' and ''lamina''.Neuendorf, K.K.E., Mehl, Jr., J.P., and Jackson, J.A. , eds., 2005. ''Glossary of Geology'' 5th ed. Alexandria, Virginia, American Geological Institute. 779 pp. . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand and silt can be carried in suspension in river water and on reaching the sea bed deposited by sedimentation; if buried, they may eventually become sandstone and siltstone (sedimentary rocks) through lithification. Sediments are most often transported by water (fluvial processes), but also wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice-transported sediments. Classification Sediment can be classified based on its grain size, grain shape, and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clastic Rock
Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock. A clast is a fragment of geological detritus,Essentials of Geology, 3rd Ed, Stephen Marshak, p. G-3 chunks, and smaller grains of rock broken off other rocks by physical weathering.Essentials of Geology, 3rd Ed, Stephen Marshak, p. G-5 Geologists use the term clastic to refer to sedimentary rocks and particles in sediment transport, whether in suspension or as bed load, and in sediment deposits. Sedimentary clastic rocks Clastic sedimentary rocks are rocks composed predominantly of broken pieces or ''clasts'' of older weathered and eroded rocks. Clastic sediments or sedimentary rocks are classified based on grain size, clast and cementing material (matrix) composition, and texture. The classification factors are often useful in determining a sample's environment of deposition. An example of clastic environment would be a river system in which the full range of grains being transported by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and waves; glacial plucking, abrasion, and scour; areal flooding; wind abrasion; groundwater processes; and mass movement processes in steep landscapes like landslides and debris flows. The rates at which such processes act control how fast a surface is eroded. Typically, physical erosion procee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weathering
Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms. Weathering occurs ''in situ'' (on site, with little or no movement), and so is distinct from erosion, which involves the transport of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity. Weathering processes are divided into ''physical'' and ''chemical weathering''. Physical weathering involves the breakdown of rocks and soils through the mechanical effects of heat, water, ice, or other agents. Chemical weathering involves the chemical reaction of water, atmospheric gases, and biologically produced chemicals with rocks and soils. Water is the principal agent behind both physical and chemical weathering, though atmospheric oxygen and carbon dioxide and the activities of biological organisms are also important. Chemical weathering by biological action is also known as biological wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
