|
Discordance Axis Albums
The adjective discordant ('conflicting, disagreeing, at variance') may describe: Earth science * Discordant rock, one that cuts across the existing bedding: as in one of the main types of igneous intrusion, or as in the sedimentary clastic dikes * Discordant strata, rock layers with mismatches in the geologic record * Discordant coastline, when the bands of rock run perpendicular to the coast * Discordant drainage pattern, where the pattern of rivers and streams does not correlate with the underlying geology Other uses * Discordant, or dissonant, sounds, in music * Discordant pair of observations, in statistics ** Discordant twins, in twin studies * Serodiscordant relationship, where one of the partners is HIV-positive and the other is not See also * Discordianism Discordianism is a religion, philosophy, or paradigm centered on Eris, a.k.a. Discordia, the Goddess of chaos. Discordianism uses archetypes or ideals associated with her. It was founded after the 1963 p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Igneous Intrusion
In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth. Intrusions have a wide variety of forms and compositions, illustrated by examples like the Palisades Sill of New York and New Jersey; the Henry Mountains of Utah; the Bushveld Igneous Complex of South Africa; Shiprock in New Mexico; the Ardnamurchan intrusion in Scotland; and the Sierra Nevada Batholith of California. Because the solid country rock into which magma intrudes is an excellent insulator, cooling of the magma is extremely slow, and intrusive igneous rock is coarse-grained (phaneritic). Intrusive igneous rocks are classified separately from extrusive igneous rocks, generally on the basis of their mineral content. The relative amounts of quartz, alkali feldspar, plagioclase, and feldspathoid is particularly important in classifying intrusive igneous rocks. Intrusions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clastic Dike
A clastic dike is a seam of sedimentary material that fills an open fracture in and cuts across sedimentary rock strata or layering in other rock types. Clastic dikes form rapidly by fluidized injection (mobilization of pressurized pore fluids) or passively by water, wind, and gravity (sediment swept into open cracks). Diagenesis may play a role in the formation of some dikes. Clastic dikes are commonly vertical or near-vertical. Centimeter-scale widths are common, but thicknesses range from millimetres to metres. Length is usually many times width. Clastic dikes are found in sedimentary basin deposits worldwide. Formal geologic reports of clastic dikes began to emerge in the early 19th century.Cross, W., 1894, Intrusive sandstone dikes in granite, GSA Bulletin, 5, p. 225-230 Terms synonymous with clastic dike include: ''clastic intrusion, sandstone dike, fissure fill, soft-sediment deformation, fluid escape structure, seismite, injectite, liquefaction feature, neptunian dike ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Record
The geologic record in stratigraphy, paleontology and other natural sciences refers to the entirety of the layers of rock strata. That is, deposits laid down by volcanism or by deposition of sediment derived from weathering detritus (clays, sands etc.). This includes all its fossil content and the information it yields about the history of the Earth: its past climate, geography, geology and the evolution of life on its surface. According to the law of superposition, sedimentary and volcanic rock layers are deposited on top of each other. They harden over time to become a solidified ( competent) rock column, that may be intruded by igneous rocks and disrupted by tectonic events. Correlating the rock record At a certain locality on the Earth's surface, the rock column provides a cross section of the natural history in the area during the time covered by the age of the rocks. This is sometimes called the ''rock history'' and gives a window into the natural history of the location ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discordant Coastline
A discordant coastline occurs where bands of different rock types run perpendicular to the coast. The differing resistance to erosion leads to the formation of headlands and bays. A hard rock type such as granite is resistant to erosion and creates a promontory whilst a softer rock type such as the clays of Bagshot Beds is easily eroded creating a bay. Part of the Dorset coastline running north from the Portland limestone of Durlston Head is a clear example of a discordant coastline. The Portland limestone is resistant to erosion; then to the north there is a bay at Swanage where the rock type is a softer greensand. North of Swanage, the chalk outcrop creates the headland which includes Old Harry Rocks. The converse of a discordant coastline is a concordant coastline. Examples *The coastline around Durlston Bay () is an example of a discordant coastline. See also *Concordant coastline In coastal geography, a concordant, longitudinal, or Pacific type coastline occurs wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage System (geomorphology)
In geomorphology, drainage systems, also known as river systems, are the patterns formed by the streams, rivers, and lakes in a particular drainage basin. They are governed by the topography of land, whether a particular region is dominated by hard or soft rocks, and the gradient of the land. Geomorphologists and hydrologists often view streams as part of drainage basins (and sub-basins). This is the topographic region from which a stream receives runoff, throughflow, and its saturated equivalent, groundwater flow. The number, size, and shape of the drainage basins varies and the larger and more detailed the topographic map, the more information is available. Drainage patterns Per the lie of channels, drainage systems can fall into one of several categories, known as drainage patterns. These depend on the topography and geology of the land. All forms of transitions can occur between parallel, dendritic, and trellis patterns. Accordant versus discordant drainage patterns A drai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissonant
In music, consonance and dissonance are categorizations of simultaneous or successive Sound, sounds. Within the Western tradition, some listeners associate consonance with sweetness, pleasantness, and acceptability, and dissonance with harshness, unpleasantness, or unacceptability, although there is broad acknowledgement that this depends also on familiarity and musical expertise. The terms form a structural dichotomy in which they define each other by mutual exclusion: a consonance is what is not dissonant, and a dissonance is what is not consonant. However, a finer consideration shows that the distinction forms a gradation, from the most consonant to the most dissonant. In casual discourse, as German composer and music theorist Paul Hindemith stressed, "The two concepts have never been completely explained, and for a thousand years the definitions have varied". The term ''sonance'' has been proposed to encompass or refer indistinctly to the terms ''consonance'' and ''dissonance' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discordant Pair
In statistics, a concordant pair is a pair of observations, each on two variables, (X''1'',Y''1'') and (X''2'',Y''2''), having the property that : \sgn (X_2 - X_1)\ = \sgn (Y_2 - Y_1), where "sgn" refers to whether a number is positive, zero, or negative (its sign). Specifically, the signum function, often represented as sgn, is defined as: : \sgn x = \begin -1, & x 0 \end That is, in a concordant pair, both elements of one pair are either greater than, equal to, or less than the corresponding elements of the other pair. In contrast, a discordant pair is a pair of two-variable observations such that : \sgn (X_2 - X_1)\ = - \sgn (Y_2 - Y_1). That is, if one pair contains a higher value of ''X'' then the other pair contains a higher value of ''Y''. Uses The Kendall tau distance between two series is the total number of discordant pairs. The Kendall tau rank correlation coefficient, which measures how closely related two series of numbers are, is proportional to the d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin Studies
Twin studies are studies conducted on identical or fraternal twins. They aim to reveal the importance of environmental and genetic influences for traits, phenotypes, and disorders. Twin research is considered a key tool in behavioral genetics and in related fields, from biology to psychology. Twin studies are part of the broader methodology used in behavior genetics, which uses all data that are genetically informative – siblings studies, adoption studies, pedigree, etc. These studies have been used to track traits ranging from personal behavior to the presentation of severe mental illnesses such as schizophrenia. Twins are a valuable source for observation because they allow the study of environmental influence and varying genetic makeup: "identical" or monozygotic (MZ) twins share essentially 100% of their genes, which means that most differences between the twins (such as height, susceptibility to boredom, intelligence, depression, etc.) are due to experiences that one tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serodiscordant
A serodiscordant relationship, also known as mixed-status, is one where one partner is infected by HIV and the other is not. This contrasts with seroconcordant relationships, in which both partners are of the same HIV status. Serodiscordancy contributes to the spread of HIV/AIDS, particularly in Sub-Saharan Africa, Sub-Saharan nations such as HIV/AIDS in Lesotho, Lesotho. Serodiscordant couples face numerous issues not faced by seroconcordant couples, including decisions as to what level of sexual activity is comfortable for them, knowing that practicing safer sex reduces but does not eliminate the risk of transmission to the HIV-negative partner. There are also potential psychological issues arising out of taking care of a sick partner, and survivor guilt. Financial strains may also be more accentuated as one partner becomes ill and potentially less able or unable to work. Research involving serodiscordant couples has offered insights into how the virus is passed and how individua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discordianism
Discordianism is a religion, philosophy, or paradigm centered on Eris, a.k.a. Discordia, the Goddess of chaos. Discordianism uses archetypes or ideals associated with her. It was founded after the 1963 publication of its "holy book," the ''Principia Discordia,'' written by Greg Hill with Kerry Wendell Thornley, the two working under the pseudonyms Malaclypse the Younger and Omar Khayyam Ravenhurst. The religion has been likened to Zen based on similarities with absurdist interpretations of the Rinzai school, as well as Taoist philosophy. Discordianism is centered on the idea that both order and disorder are illusions imposed on the universe by the human nervous system, and that neither of these illusions of apparent order and disorder is any more accurate or objectively true than the other. There is some discord as to whether Discordianism should be regarded as a parody religion, and if so, to what degree. It is difficult to estimate the number of Discordians because they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discord (other)
Discord is an online application for messaging and audio/video communication. Discord may also refer to: Film and TV * ''Discord'' (film), a 1933 British drama * Discord, a character from the 2010 television series '' My Little Pony: Friendship Is Magic'' Music * Discord, dissonance in music * ''Discord'', a 1997 album by Ryuichi Sakamoto * ''Discord'' (album), a 2004 album by Bomb Factory * ''Discord'', a 2004 album by Stewart Walker * "Discord", a 2004 song by Bomb Factory from the album '' Discord'' * "Discord", a 2006 song by the Fire Engines * "Discord", a 2007 song by After Forever from the album '' After Forever'' * " Fukyōwaon" (or "Discord"), a 2017 song by Keyakizaka46 Places * Discord, the name of a former unincorporated community in Kedron Township * "Block of Discord", the English translation of Illa de la Discòrdia, a city block in Barcelona, Spain * Cape Discord, a headland in Greenland Other uses * Discord (or Discordia), the Roman equivalent to the Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Twin Studies")
