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Matrix - Wikipedia, the free encyclopedia Matrix (biology), in biology, the material between animal or plant cells. Matrix (geology), the outer material of a rock consisting of larger grains embedded in a material consisting of smaller ones. Matrix (IT), a group of data which forms the "essence" of an application. en.wikipedia.org /wiki/Matrix   (427 words)

Matrix Hilbert matrix In linear algebra, a Hilbert Matrix is a matrix with elements H = 1 / (i + j - 1) For example, this is th... Matrix exponential In Lie groups and Lie algebras, the matrix exponential is the function on square matrices A defined b... Skew-Hermitian matrix In conjugate transpose A for all i and j. www.brainyencyclopedia.com /topics/matrix.html   (1715 words)

Encyclopedia: Matrix (geology) In mathematics, a matrix is a rectangular array of scalars, especially when thought of as arguments to the operations of matrix multiplication and matrix addition, or as representing linear transformations. In geology, the outer material of a rock consisting of larger grains embedded in a material consisting of smaller ones is called a geological matrix. Geology (from Greek γη- (ge-, "the earth") and λογος (logos, "word", "reason")) is the science and study of the Earth, its composition, structure, physical properties, history, and the processes that shape it. www.nationmaster.com /encyclopedia/Matrix-%28geology%29   (524 words)

MATRIX   (Site not responding. Last check: 2007-11-06) Generally speaking, a matrix is something that provides support or structure, especially in the sense of surrounding and/or shaping. In biology the word matrix is used for the material between animal or plant cells, or generally the material in which more specialized structures are embedded, and also specifically for one part of the mitochondrion. The Matrix is also a group of music producers who have worked with singers such as Avril Lavigne and Liz Phair. www.yotor.org /wiki/en/ma/Matrix.htm   (387 words)

Geology of the Zion and Kolob canyons area - Open Encyclopedia   (Site not responding. Last check: 2007-11-06) The geology of the Zion and Kolob canyons area includes nine known exposed formations, all visible in Zion National Park in the state of Utah in the United States, and representing about 150 million years of mostly Mesozoic-aged sedimentation. Part of the Grand Staircase, the formations exposed in the Zion and Kolob area were deposited in several different environments that range from warm shallow seas, streams, and lakes to large deserts and dry near shore environments. The other component of the Navajo's weak cement matrix is calcium carbonate, but the resulting sandstone is friable (crumbles easily) and very porous. open-encyclopedia.com /Geology_of_the_Zion_and_Kolob_canyons_area   (2501 words)

Matrix (geology) - Wikipedia, the free encyclopedia The matrix or groundmass of an igneous rock consists of fine grained often microscopic crystals in which larger crystals (phenocrysts) are embedded. Also in South Africa, diamonds are often mined from a matrix of weathered clay-like rock (kimberlite) called "yellow ground." In sedimentary rocks, matrix refers to a fine grained clay or silt in which larger fragments are embedded. en.wikipedia.org /wiki/Matrix_(geology)   (135 words)

Matrix bei eLexi - das Onlinelexikon   (Site not responding. Last check: 2007-11-06) In geology, if a rock consists of larger grains embedded in a material consisting of smaller ones, this surrounding material (or "substrate") is termed matrix. Matrices in the mathematical sense are useful to record data that depend on two categories, such as the sales in three branches of a store in each of the four quarters of a year, or to keep track of the coefficients of linear expressions such as linear transformations and systems of linear equations. The field of mathematics that studies matrices is called matrix theory, a branch of linear algebra. www.elexi.de /en/m/ma/matrix.html   (665 words)

matrix --  Encyclopædia Britannica in geology, the material in which something is embedded, either the natural rock that holds crystals, fossils, pebbles, mineral veins, and the like, or the fine-grained materials that surround larger grains in a rock—e.g., silt and clay particles in a sandstone or tiny crystals in a crystalline rock, sometimes called groundmass. Matrix proteins are large molecules tightly bound to form extensive networks of insoluble fibres. The two major classes of cell wall matrix polysaccharides are the hemicelluloses and the pectic polysaccharides, or pectins. www.britannica.com /eb/article-9051410   (599 words)

Felsite - Wikipedia, the free encyclopedia Felsite is a very fine to cryptocrystalline igneous rock that may or may not contain larger crystals, called phenocrysts, that are typical of many porphyritic igneous rocks. The mass of the rock consists of a fine-grained matrix of felsic materials, particularly quartz, sodium and potassium feldspar, and may be termed a quartz felsite or quartz porphyry if the quartz phenocrysts are present. This rock is typically of volcanic origin, and may be found in association with obsidian and rhyolite. en.wikipedia.org /wiki/Felsite   (156 words)

Matrix :: Astrobiology Magazine :: Search for Life in the Universe Summary (Jul 02, 2003): Estimating the frequency for communicating with an extrasolar civilization is a multi-dimensional challenge. Astrobiology Magazine has previously examined many of the small probabilities that might define a frequency for life elsewhere, including the probability for intelligent life, the probability for compatible host stars, and the probability of earth-like conditions on any stably orbitting exoplanets. In this way, the Astrobiology Matrix is as much about the future of life as its past. www.astrobio.net /news/article512.html   (1862 words)

Carbonate Rock Classification The names of the different types of allochems are shortened and become prefixes for the descriptive term, so bioclasts shorten to bio-, peloids to pel-, ooliths to oo-, and intraclasts to intra-. The name is then determined by the relative percentages of allochems found in the rock and then the matrix (or orthochems). Another example, a rock with 40% fossil fragments (of indeterminate types) and 60% peloids with a sparite matrix would be a fossiliferous pelsparite. www.suite101.com /article.cfm/everyday_geology/91988/2   (519 words)

A SKILLS MATRIX AS A GEOLOGY DEPARTMENT CURRICULUM PLANNING TOOL Geology majors should begin their "senior integrative exercise" having practiced all of the formal steps in the process (recognizing problems, writing proposals, carrying out a project, reporting a project in several ways) multiple times in previous geology courses; We devised the matrix to help us assess where in the geology curriculum students were gaining skills and where there were major skills gaps. The matrix is in the form of a simple spreadsheet, with skills in rows and courses (or other experiences) in columns. gsa.confex.com /gsa/2001AM/finalprogram/abstract_18289.htm   (420 words)

Marietta College Academics The Geology major at Marietta College is designed to provide the undergraduate with a bachelor’s degree foundation necessary for further study in this exciting field. The dinosaur bones need to be released from their plaster-jackets, cleaned of matrix and reconstructed before they are studied and eventually housed in a repository. The Geology Annex is a building dedicated to the laboratory work of cleaning and preparing the dinosaur bones and materials for study and display. www.marietta.edu /~provost/majors/geology.html   (411 words)

STRUCTURAL GEOLOGY Amphibole within the matrix is generally finer grained than fractured plagioclase and sometimes has a slightly schistose fabric indicating growth during deformation. The intensity and orientation of veins were measured using the intensity scale outlined in "Structural Geology" in the "Explanatory Notes" chapter. Formation of amphibole and plagioclase matrix cataclasites began at the end of crystal-plastic deformation and continued during down-temperature deformation into upper greenschist facies conditions. www-odp.tamu.edu /publications/209_IR/chap_10/c10_4.htm   (2254 words)

Journal of Structural Geology Discordance between inclusion trails in porphyroblasts of garnet and staurolite and matrix fabrics in 'straight' belt rocks records tightening of folds and greater rotation of matrix fabrics with respect to porphyroblasts. The matrix minerals surround porphyroblasts of biotite, garnet, staurolite and andalusite to form both symmetric and asymmetric strain shadow tails of quartz and mica aggregates (Solar and Brown, 1999). The matrix fabric wraps around the porphyroblasts to suggest that nucleation and growth of porphyroblasts occurred before final recrystallization of the matrix minerals (Solar and Brown, 1999), similar to rocks in the 'straight' belts. www.geol.umd.edu /pages/faculty/BROWN/LCP/struct.htm   (9003 words)

[No title]   (Site not responding. Last check: 2007-11-06) Jay Lininger, president of Matrix Publishing is a long-time mineral collector and is the person who came to Jeri’s assistance in 1966 when he needed to complete a 6th grade science fair project. Although the area is small in square miles, the geology is quite diverse. General geology and topography; history of abandoned sandstone quarries producing ornamental building pillars; fossils and minerals and geologic history; rock descriptions and topography. www.jonesgeo.com /goldarticle.html   (1549 words)

A Critical Look at Noah's Flood Flood geology can be defined as the thesis that all or most of the earth's sedimentary and volcanic deposits were formed by depositional processes operating during the months of Noah's flood, about 4500 years ago. If flood geology is correct, then lava flows found in the geologic column should all have been extruded subaqeously (underwater) during the flood, and hence should resemble pillow basalts known to have formed under the water. Flood "geology" is not excluded from the classroom because of an anti-Christian bias, but because it cannot explain even the basic data of geology, and because it is in fact inconsistent with well-known data -- things like the distribution of sediments, the distribution of fossils within sediment layers, radiometric ages, and so forth. www.geocities.com /pgspears/f.htm   (10597 words)

Dakota Matrix Minerals — Crystal and mineral specimens such as gold for the earth science student. Dakota Matrix Minerals — Crystal and mineral specimens such as gold for the earth science student. The Geology of the Foley Ridge Gold Mine", Sept., 1990, Proceedings of the Fourth Western Regional Conference on Precious Metals and the Environment. The Ross Hannibal mine, Lawrence Co., South Dakota” 1999 The Mineralogical Record V. Geological Overview of the Black Hills" 2002 MATRIX magazine V. 10 n. www.dakotamatrix.com /articles.asp   (177 words)

STRUCTURAL GEOLOGY These were supplemented by microstructural observations from 46 thin sections, although the relatively high degree of alteration in the peridotites meant that some of the features are preserved only as pseudomorphs, leading to potential ambiguity in their interpretation. We conclude with a discussion of the temporal and spatial relationships of the structures and then present an initial interpretation of the evolution of each of the four holes in the context of their tectonic setting. The primary difference between the fault gouge zones is that Piece 1 appears to be supported by the extremely fine grained matrix and is slightly cohesive, whereas Piece 3 is clast supported and is noncohesive. www-odp.tamu.edu /publications/209_IR/chap_05/c5_4.htm   (6366 words)

RECOGNITION AND MAPPING OF MELANGES: IMPLICATIONS FOR ENGINEERING PROJECTS   (Site not responding. Last check: 2007-11-06) Melanges, geologic bedrock units with blocks in a weak, commonly sheared, matrix have been recognized by geologists as significant components of orogenic belts for decades, yet the engineering community has been slow to appreciate their importance. For example, in the Sierra Nevada, some melanges have a brittle shale matrix in the north (greenschist or lower metamorphic grade), but this matrix is quartz mica schist (lower amphibolite and higher grade) to the south. Recognition of coherent (non melange) units in contrast to melanges in the field is not trivial; experience with such rocks on the part of the participating geologist(s) and a well conceived exploration plan are critical for adequate characterization. gsa.confex.com /gsa/2002AM/finalprogram/abstract_42058.htm   (445 words)

Andamooka Matrix Opal Internet Sources   (Site not responding. Last check: 2007-11-06) Andamooka matrix opal: Strictly from the sense of its physical formation, all opal is formed in cavities reason, this material is called Andamooka matrix opal. Geology and Occurrence in crystal opal production has given increased prominence to the unique Andamooka matrix opal or 'matrix' which. The opal is treated matrix from the Andamooka opal field, South Australia is there for me to say about Andamooka matrix opal. www.finejewelrysite.com /gems-two/andamooka_matrix_opal.html   (174 words)

Benchmark 2 Evaluates the speed at which a random matrix is processed element by element. However, it is partly compatible with Gauss, another high quality commercial matrix calculation software regarded as a standard in econometry (not evaluated here, but you will find detailed tests in Stephan Steinhaus' report). "Matrix languages" (like all the software we evaluated here) are very flexible because they are programmable and they are able to work very efficiently with matrices (by definition!) that are widely used in data analysis. www.sciviews.org /benchmark   (1735 words)

fUSION Anomaly. The Matrix   (Site not responding. Last check: 2007-11-06) Matrix mechanics showed that there were an infinite number of matrices that represented the position and momentum of an electron inside an atom. For Neo will discover that the organized escape of humans from the Matrix into Zion is simply a transfer from one virtual world to another, in precisely the manner anticipated by the Architect of the Matrix. The Matrix in _Neuromancer_ is the same as in the movie; it was totally real, and if you died in it, you died in real life (there was one character, "Dixie Flatline" who died, and his persona was recorded into a "construct" and used by the main character of the book as a guide). fusionanomaly.net /matrix.html   (4253 words)

Search Results for Matrix - Encyclopædia Britannica in geology, the material in which something is embedded, either the natural rock that holds crystals, fossils, pebbles, mineral veins, and the like, or the fine-grained materials that surround... The requirement that finished parts be able to operate at temperatures high enough to melt or degrade a polymer matrix creates the need for other types of matrix materials, often metals. This is filled with a composite material, known as the extracellular matrix, composed of a gel in... www.britannica.com /search?query=Matrix&ct=   (411 words)

Kids Geology Kits2 Geology Treasure Hunt Kits "A field trip in a box" Natural minerals and fossils are embedded in a rock-like matrix for kids to dig out. Our matrix block provides enough challenge to keep a 6 to 10 year old's attention for 30 to 40 minutes. www.geologyadventures.com /html/kids_geology_kits2.html   (206 words)

Course Design Matrix The relational matrix can be employed to identify how specific topics or case studies can be used to elucidate the interconnectivity of the Earth system. The relational planning matrix helps structure the course so that the core focus on interconnectivity of the Earth's subsystems is not lost. The way in which ocean temperatures propagate weather conditions in regions far removed from the ocean itself is only in the early stages of being understood by scientists and could serve as a focus for class activities that engage students in examination of time-series of sea surface temperatures as recorded by satellite imagery. serc.carleton.edu /introgeo/earthcoursedesign/matrix.html   (489 words)

Sandstone Classification The matrix is the material that cements the sand grains together. The matrix can be of any type, commonly we see calcareous, dolomitic, or siliceous matrixes, but for our purposes here the actual composition of the matrix is not as important as the percentage of matrix present. If it has less than 10% matrix, it is referred to as an arenite. www.suite101.com /article.cfm/everyday_geology/90856   (429 words)

The Difference Dictionary:M Matrix - The stone in which a fossil is imbedded. The Meiji restoration - Early in 1868, Keiki, the last shogun or military ruler of Japan, was forced to resign his post, and the Meiji emperor, backed by the conservative daimyos of Satsuma and Choshu, assumed control, restoring to Japan a sense of national unity. Museum of Practical Geology, Jermyn St. - One of the earliest of the great National Museums, demolished in 1936. www.sff.net /people/gunn/dd/m.htm   (792 words)

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