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COMPRESSION ROCHES [6 records]
Record 1 - internal organization data 2011-04-14
Record 1, English
Record 1, Subject field(s)
- Plate Tectonics
Record 1, Main entry term, English
- compression
1, record 1, English, compression
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
When lithospheric plates collide, compression occurs, shaping rock layers into folds that then break and move atop one another along overthrust faults. 2, record 1, English, - compression
Record 1, French
Record 1, Domaine(s)
- Tectonique des plaques
Record 1, Main entry term, French
- compression
1, record 1, French, compression
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La convection mantellique va entraîner, par friction sur la base de la lithosphère, des zones de contraintes en distension et en compression, qui vont provoquer des mouvements et des déformations de la lithosphère et des roches qui la composent. [...] La compression va amener la convergence de deux plaques et leur affrontement. 2, record 1, French, - compression
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2005-07-05
Record 2, English
Record 2, Subject field(s)
- Petrography
Record 2, Main entry term, English
- metamorphic rock
1, record 2, English, metamorphic%20rock
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- metamorphite 2, record 2, English, metamorphite
correct
- metamorphic 3, record 2, English, metamorphic
correct, noun
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A rock derived from preexisting rocks by mineralogical, chemical, and structural alterations due to processes operating within the Earth's crust. 4, record 2, English, - metamorphic%20rock
Record number: 2, Textual support number: 1 CONT
The gold of India is mainly derived from quartz reefs traversing metamorphic and submetamorphic rocks, and occasionally from gneiss, chloritic schists, and quartzites showing no quartz. 5, record 2, English, - metamorphic%20rock
Record number: 2, Textual support number: 1 OBS
As a noun "metamorphic" is usually plural. 6, record 2, English, - metamorphic%20rock
Record number: 2, Textual support number: 2 OBS
See also the more specific terms "para rock" and "ortho rock." 6, record 2, English, - metamorphic%20rock
Record 2, Key term(s)
- metamorphics
Record 2, French
Record 2, Domaine(s)
- Pétrographie
Record 2, Main entry term, French
- roche métamorphique
1, record 2, French, roche%20m%C3%A9tamorphique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- métamorphite 2, record 2, French, m%C3%A9tamorphite
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Les roches métamorphiques sont des roches sédimentaires ou éruptives, transformées ultérieurement par un facteur d’origine interne tel que compression, échauffement, influence magmatique. 3, record 2, French, - roche%20m%C3%A9tamorphique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Petrografía
Record 2, Main entry term, Spanish
- roca metamórfica
1, record 2, Spanish, roca%20metam%C3%B3rfica
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Roca originada mediante un proceso de metamorfismo y que presenta estructuras características, como la esquistosidad o la pizarrosidad. 2, record 2, Spanish, - roca%20metam%C3%B3rfica
Record 3 - internal organization data 2004-10-20
Record 3, English
Record 3, Subject field(s)
- Petrography
- Soil Mechanics (Engineering)
Record 3, Main entry term, English
- soft rock
1, record 3, English, soft%20rock
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The definition of rock from an engineering or functional viewpoint is complicated by structures and defects. A rock that is hard but fractured may be easier to excavate than a softer but more coherent material. Although the fractured rock is easier to excavate, it may require bracing to support it in a deep excavation, whereas the soft rock may stand without support. 2, record 3, English, - soft%20rock
Record number: 3, Textual support number: 1 OBS
An imprecise term used to denote materials that are more coherent than soils, yet are less coherent than many rocks. Two empirical definitions are that a soft rock does not need to be excavated by blasting, and that a soft rock has an unconfined compressive strength of between 400 and 1000 kN/m². It may be noted that to the geologist all sedimentary rocks are termed soft rocks, which may lead to confusion in an engineering context, since many sedimentary rocks cannot be excavated mechanically. 3, record 3, English, - soft%20rock
Record number: 3, Textual support number: 2 OBS
Antonym: hard rock. 4, record 3, English, - soft%20rock
Record 3, French
Record 3, Domaine(s)
- Pétrographie
- Mécanique des sols
Record 3, Main entry term, French
- roche tendre
1, record 3, French, roche%20tendre
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- roc tendre 2, record 3, French, roc%20tendre
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
[...] on peut classer les sols en trois catégories d’après leur résistance à la compression ou force portante. 1) Sols très résistants dits «Incompressibles». Dans cette catégorie entrent notamment : Les roches dures telles que les roches éruptives et les calcaires durs [...] Les roches tendres telles que les calcaires tendres, les marnes et les argiles compactes [...] Les sables et graviers [...] 2) Sols moyennement compressibles ou élastiques [...] 3) Sols indéfiniment compressibles. 3, record 3, French, - roche%20tendre
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2001-11-06
Record 4, English
Record 4, Subject field(s)
- Geology
Record 4, Main entry term, English
- angle of shear
1, record 4, English, angle%20of%20shear
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The angle between the planes of maximum shear which is bisected by the axis of greatest compression. 2, record 4, English, - angle%20of%20shear
Record 4, French
Record 4, Domaine(s)
- Géologie
Record 4, Main entry term, French
- angle de cisaillement
1, record 4, French, angle%20de%20cisaillement
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- angle de glissement 2, record 4, French, angle%20de%20glissement
correct, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Angle entre les plans de cisaillement maximal et dont la bissectrice est l’axe de plus grande compression. 3, record 4, French, - angle%20de%20cisaillement
Record number: 4, Textual support number: 2 DEF
[Dans la fracturation expérimentale des roches] angle [...] entre la direction de compression et les fractures de cisaillement [...] 2, record 4, French, - angle%20de%20cisaillement
Record number: 4, Textual support number: 1 OBS
L’angle de cisaillement [...] est toujours inférieur à 45°. Il varie suivant les matériaux; plus le matériau est compétent, c’est-à-dire cassant (ne pas confondre avec la dureté) plus cet angle est faible. 2, record 4, French, - angle%20de%20cisaillement
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1988-05-04
Record 5, English
Record 5, Subject field(s)
- Geological Prospecting
- Geology
Record 5, Main entry term, English
- rock squeeze 1, record 5, English, rock%20squeeze
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, French
Record 5, Domaine(s)
- Prospection géologique
- Géologie
Record 5, Main entry term, French
- compression des roches
1, record 5, French, compression%20des%20roches
proposal, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1977-11-28
Record 6, English
Record 6, Subject field(s)
- Geology
Record 6, Main entry term, English
- strength
1, record 6, English, strength
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 OBS
The stress at which rock ruptures or fails. (...) The limiting stress that a solid can withstand without failing by rupture or continuous plastic flow. 2, record 6, English, - strength
Record 6, French
Record 6, Domaine(s)
- Géologie
Record 6, Main entry term, French
- limite de rupture
1, record 6, French, limite%20de%20rupture
correct
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 OBS
[La] "Limite de rupture"(...) est la force par unité de surface nécessaire pour causer la rupture à la température ordinaire et sous la pression atmosphérique, dans des expériences de courte durée. Dans de telles expériences la plupart des roches sont cassantes, c'est-à-dire que leur rupture n’ est pas précédée, ou ne l'est que très peu, d’une déformation plastique. L'expérimentation montre que la limite de rupture varie beaucoup suivant que la contrainte est compressive ou tensile. Des granites, par exemple, sont au moins trente fois plus résistants à la compression qu'à la tension(...) 1, record 6, French, - limite%20de%20rupture
Record 6, Spanish
Record 6, Textual support, Spanish
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