SCHIST

shĭst, metamorphic rock having a foliated, or plated, structure called schistosity in which the component flaky minerals are visible to the naked eye. Schists are distinguished from the other foliated rocks, slates and gneisses, by the size of their mineral crystals; these are larger than those of slates, being visible to the naked eye, but smaller than those of gneisses, which are coarsely foliated rocks as opposed to finely foliated, or schistose, rocks. As contrasted with the folia of slates, the folia of schists are rough-surfaced and irregular. Schists split readily along their planes of schistosity, like slates along cleavage lines. Like other foliated rocks, schists owe their origin to the metamorphism of preexisting rocks. The commonest of the schists is mica schist, the essential minerals of which are quartz and mica (biotite or muscovite). Other schists are hornblende schist, talc schist, chlorite schist, and graphite schists. Schists are abundant in the Precambrian (Archeozoic and Proterozoic) rocks.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Schist
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books on: Schist  - 506 results

       More book Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
Gandhara Sculpture from Pakistan Museums
Book by Benjamin Rowland Jr.; Asia Society, 1960
Subjects: Art, Buddhist--Exhibitions, Sculpture, Gandhara--Exhibitions, Sculpture--Pakistan--Peshawar District--Exhibitions
...BUDDHA, 2nd century, fine-grained schist, 13 3/4 O 9-1/16 Lahore, Central...BODHISATTVA Maitreya, 2nd-3rd century, schist, height: 13" Lahore, Central Museum...HEAD of a Bodhisattva, 2nd century, schist, 8 1/4 O 5 1/2 Peshawar Museum 38...
2.
Grand Canyon Geology
Book by Stanley S. Beus, Michael Morales; Oxford University Press, 2003
Subjects: Geology--Arizona--Grand Canyon
...75- to 1.73-Ga interval. The Brahma Schist consists mainly of hornblende-biotite schists and am- phibolites. Orthoamphibole-bearing...Canyon) and are also included in the Brahma Schist. Geochemistry suggests that the massive amphibolites...
3.
Earth Science Demystified
Book by Linda Williams; McGraw-Hill, 2004
Subjects: Earth Sciences--Popular Works
Schist rocks are metamorphic...external factors. Schists can be formed from...tighter than slate, schist is often found folded...into larger flakes. Schists are usually named with...minerals. Biotite mica schist, hornblende schist...
4.
The Buddhist Architecture of Gandhara
Book by Kurt A. Behrendt; Brill, 2004
Subjects: Architecture, Buddhist--Gandhara (Pakistan And Afghanistan), Sculpture, Buddhist--Gandhara (Pakistan And Afghanistan), Sculpture, Gandhara--Gandhara (Pakistan And Afghanistan)
...with caution, as it is clear that schist remained in use late in phase III and into phase IV. B3 Dating Monumental Schist Devotional Icons of Buddhas and Bodhisattvas...in clay and stucco, a few massive schist images have come to light, and it...
5.
Colouring the Past: The Significance of Colour in Archaeological Research
Book by Andrew Jones, Gavin Macgregor; Berg, 2002
...illustrating the arrangement of schists and quartz. Based on Le Roux...This final phase includes schist menhirs 15, 16, 18 and 21...Whether the quartz preceded the schist menhirs, or whether both quartz and schist were involved at each stage...
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journal articles on: Schist  - 214 results

       More journal Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
The Pinal Schist, Southeast Arizona, Usa: Contraction of a Palaeoproterozoic Rift Basin
Journal article by Myra Keep; Journal of the Geological Society, Vol. 153, 1996
Subjects: Arizona, Geology, Sediments, Volcanoes
The Pinal Schist, Southeast Arizona, Usa...Silver 1989). The Pinal Schist lies within the Mazatzal...schists and footwall psammitic schists (Fig. 5). Amphibolitic...between pelitic and psammitic schist, kinematic indicators in...
2.
Tectonic Sequence Diagrams and the Structural Evolution of Schists and Gneisses in Multiply Deformed Terranes
Journal article by M. A. Forster, G. S. Lister; Journal of the Geological Society, Vol. 165, 2008
Subjects: Field study, Geology, Research
...structural analysis: (1) in the Otago Schist, New Zealand; (2) in New Caledonia...Queensland. We use our work in the Otago Schist to provide detailed documentation, then...problems. Structural geology in the Otago Schist The Otago Schist in the South Island of...
3.
Rotation of Ductile Fabrics across the Alpine Fault and Cenozoic Bending of the New Zealand Orocline
Journal article by Timothy A. Little, Nick Mortimer; Journal of the Geological Society, Vol. 158, 2001
Subjects: Geological time, New Zealand, Plate tectonics
...South Island, the Haast Schist belt embraces the Otago, Alpine and Marlborough schists. The Otago Schist forms an arch, c. 150...thickly segregated schists) isotect. The contact...east of black pelitic schist that contains bands of...
4.
Early Silurian Magmatism and the Scandian Evolution of the Kalak Nappe Complex, Finnmark, Arctic Norway
Journal article by C. L. Kirkland, J. S. Daly, M. J. Whitehouse; Journal of the Geological Society, Vol. 162, 2005
Subjects: Deformation, Finnmark Norway, Geology, Igneous rock, Magma, Sedimentation & deposition
...the depositional age of the Hellefjord Schist, based on the age of a volcaniclastic...granitic bodies that cut the Hellefjord Schist. The results have important implications...Sturt et al. 1978). The Hellefjord Schist has been regarded as the youngest component...
5.
Cavalli Seamount, Northland Plateau, SW Pacific Ocean: a Miocene Metamorphic Core Complex?
Journal article by N. Mortimer, R. H. Herzer, N. W. Walker, A. T. Calvert; Journal of the Geological Society, Vol. 160, 2003
Subjects: Geology, Lava, New Zealand, Pacific Ocean, Plate tectonics, Stone
...The large blocks of schist from DlB arc well...moderately lineated, banded schists. Fine-grained biotite schist is the dominant...Skinner 1995), and schists as xenoliths in Quaternary...reported. The Cavalli schist peak temperature and...
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magazine articles on: Schist  - 27 results

       More magazine Results: 1-10 11-20 21-27 >>  
 
1.
William Mulholland and the St. Francis Dam Disaster
Magazine article by Donald C. Jackson, Jr. Norris Hundley; California History, Vol. 82, Fall 2004
Subjects: Dam failures--California, Dam failures--History, Dam safety--Laws, regulations and rules, Dams--California, Dams--Design and construction, Mulholland, William (Irish American engineer), Southern California
...and the dip and strike of the slate schist such as to threaten slips." (10) Joseph...rock that we encountered was a broken schist and a good deal of it expanded when it...11) While the east abutments faulty schist would later reverberate through the story...
2.
The Dawn of Adornment
Magazine article; Natural History, Vol. 102, May 1993
Subjects: Archaeology, Jewelry, Sculpture
...and freshwater shells, fossil coral, limestone, schist, talc-schist, steatite, jet, lignite, hematite, and pyrite...camp, wore elaborate personal ornaments of ivory and schist and carved geometric and animal forms out of ivory...
3.
Portugal's Rescued Rock Art
Magazine article by William K. Barnett; Natural History, Vol. 106, October 1997
Subjects: Ancient civilizations, Art, History, Portugal
...art of known age.) Etched on vertical schist surfaces, the designs are classic Paleolithic...plateau of the Douro, and then into the schist valleys of the upper Douro and Coa Rivers...Petroglyphs are located near the river where the schist outcrops rise up as natural walls-accessible...
4.
Asprey Jacques: Tania Kovats
Magazine article by Rachel Withers; Artforum International, Vol. 39, Summer 2001
Subjects: Kovats, Tania--Exhibitions, Sculpture--Exhibitions
...half centuries on, in her exhibition "Schist," Tania Kovats reworks the idea of sublime...in pursuit of her art. The works in "Schist" direct a just-perceptible wink toward...rise to absurdity and uncertainly. "Schist" is an unassuming but intelligent show...
5.
Crossroads of the Alps - an Archaeological Expedition to Saint Bernard Pass, Famous for Its Dogs and Isolated Much of the Year by Snow, Reveals Its Stark Beauty and Rich History
Magazine article by Christie Cochrell; World and I, Vol. 16, September 2001
Subjects: Italy--Description and travel, Mountain passes--Description and travel
...self-contained building. It is constructed of the local schist, dark gray with lighter plaster, and rusted with the blood...plastic measuring cup of hydrochloric acid. Marble fizzes, schist doesnt. The Romans used marble only for their sacred buildings...
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newspaper articles on: Schist  - 28 results

       More newspaper Results: 1-10 11-20 21-28 >>  
 
1.
Becton Has 'Bright Words,' Few Specifics for Guards
Newspaper article by Gary Schist; The Washington Times, December 14, 1996
Subjects: Becton, Julius W., Jr.
Becton has bright words, few specifics for guards by Gary Schist Retired Army Lt. Gen. Julius W. Becton Jr., who vowed to make security a top priority as chief executive officer of the D...
2.
Portugal's Best Kept Secret; MaryMurtagh Discovers a Long Forgotten Corner of Portugal: Region Isa 'Hiddengem'
Newspaper article; Liverpool Echo (Liverpool, England), August 25, 2009
...money has helped restore the traditional schist villages which are one of the main selling...Dilapidated houses, made from the local schist stone, have been lovingly brought back...geraniums that hang from window boxes in the schist villages. Visiting here is like taking...
3.
TRAVEL: Journey to the Heart of Portugal and the Hidden Villages; the Portuguese Put the Flags out When ALISON JONES Took a Trip to the Beiras Region. Though It Was Just a Happy Coincidence, She Did Find a Warm Welcome in the Hillsides
Newspaper article; The Birmingham Post (England), March 29, 2008
...bordered by brooks. It is one of 23 Shale or Schist villages in the Lousa mountains in Central...hills of Lousa once more and to other Schist villages. They have survived nearly a...settlement; one of the areas picturesque Schist villages; mist rising from a forest lake
4.
The Ryanair Factor
Newspaper article; The Birmingham Post (England), August 30, 2006
Subjects: Wine, Wine industry, Wineries
...identified as the best suited to limestone-clay soils, the eastern sector of the estate is warmer and drier, with slate and schist. Here, the most successful variety is Grenache, singularly well-adapted to a unique marble-veined parcel located close...
5.
Coastal Wines the Right Match for Coastal Cuisine
Newspaper article; Daily Herald (Arlington Heights, IL), June 30, 2010
Subjects: Wine, Wine industry, Wineries
...empties into the Atlantic, Frances Muscadet appellation grows the innocuous Melon de Bourgogne grape in soils combining gravel, schist and granite. Muscadets wine is minerally and tart, like a squeeze of lemon enhancing the minerally brine of local oysters...
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encyclopedia articles on: Schist  - 7 results

       More encyclopedia Results: 1-7 >>  
 
1.
Schist
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...preexisting rocks. The commonest of the schists is mica schist, the essential minerals of which...biotite or muscovite). Other schists are hornblende schist, talc schist, chlorite schist, and graphite schists. Schists are abundant in the Precambrian...
2.
Rock
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...characteristic of many metamorphic rocks is their slaty cleavage . Among the common metamorphic rocks are schist (e.g., mica schist and hornblende schist), gneiss , quartzite, slate , and marble. Bibliography See H. Blatt et al., Origin of Sedimentary...
3.
Cleavage
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...sedimentary rock to split along more or less smooth surfaces is sometimes referred to as rock cleavage. Flagstone, slate, and schist are noted for this property, which arises from the parallel alignment of fine, platy mineral grains, themselves displaying...
4.
Indian Art and Architecture
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...extensive trade that characterized the period. Stupas and monasteries were adorned with relief friezes, often carved in dark schist, showing figures in classical poses with flowing Hellenistic draperies. Farther east and south, contemporary Mathura, also...
5.
Basalt
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...metamorphism, i.e., high temperatures and great pressures, basalt is transformed into various kinds of schists including hornblende schist. Fine and coarse-grained crystalline rocks returned from various regions of the moon by Apollo astronauts...
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