TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Geochemical analyses can show whether mineralizing fluids have altered rock composition.  1, record 1, English, - geochemical%20analysis

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

L'analyse géochimique peut indiquer si les fluides de minéralisation ont modifié la composition de la roche.  1, record 1, French, - analyse%20g%C3%A9ochimique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A pyroclastic rock consisting of angular fragments of hydrothermally altered or weathered basaltic glass.  3, record 2, English, - palagonite%20tuff

Record number: 2, Textual support number: 2 DEF

An indurated deposit of glassy basaltic ash in which the constituent particles are largely altered to palagonite.  4, record 2, English, - palagonite%20tuff

Record number: 2, Textual support number: 3 DEF

A bedded aggregate of dust and fragments of basaltic lava, among which are conspicuous angular pieces and minute granules of pale yellow, green, red, or brown altered basic glass called palagonite.  2, record 2, English, - palagonite%20tuff

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Les tufs verts de l'Elbourz, dits «palagonitiques», sont à rapporter, avec leurs roches volcaniques associées, à ce type de sédimentation. Dans l'Elbourz, à l'Eocène et à l'Oligocène inférieur, la sédimentation est caractérisée par l'association de sédiments marins normaux bathyaux avec microfossiles pélagiques, Globigérines, et de tufs chloritiques résultant de l'arrivée de laves dans la mer en eaux profondes.  3, record 2, French, - tuf%20palagonitique

Record number: 2, Textual support number: 2 CONT

Les tufs sont parfois classés [...] d'après la nature prédominante des éléments (tuf vitreux, tuf cristallin, tuf à palagonite, etc.), [...]  4, record 2, French, - tuf%20palagonitique

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

An altered igneous rock that is usually opaque with green, black, pink, and white flecks and is usually used as a gemstone.  1, record 3, English, - unakite

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

Describing a rock texture in which partially altered crystals form a network that encloses remnants of the original, unaltered mineral.  2, record 4, English, - reticulated

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 CONT

Suelo reticulado.  2, record 4, Spanish, - reticulado

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

A granitic rock composed largely of quartz, mica, and topaz, that has been altered by the action of its own volatile emanations.  2, record 5, English, - greisen

Record number: 5, Textual support number: 1 CONT

... zones of pegmatitic texture occur in several types of granite-related deposits, such as "stockscheider" associated with tin- and tungsten-bearing stockworks and greisens ...  3, record 5, English, - greisen

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

[Granite alcalin] composé de quartz et de muscovite, correspondant à une granulite où le feldspath a été transformé en muscovite par action hydrothermale.  2, record 5, French, - greisen

Record number: 5, Textual support number: 1 CONT

[...] des zones à texture pegmatitique se rencontrent dans plusieurs types de gîtes liés à des granites, tels que les «stockscheiders» associés aux stockwerks et greisens stannifères et tungsténifères [...]  3, record 5, French, - greisen

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Variedad de granito consistente en una granulita en la cual el feldespato se ha transformado en moscovita.  1, record 5, Spanish, - greisen

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A rock that has undergone changes in its chemical and mineralogical structure since its original deposition ...  2, record 6, English, - altered%20rock

Record number: 6, Textual support number: 1 PHR

Altered host rock.  3, record 6, English, - altered%20rock

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

[...] roche qui a subi des changements dans sa structure chimique et dans sa structure minéralogique depuis sa déposition originelle [...]  2, record 6, French, - roche%20alt%C3%A9r%C3%A9e

Record number: 6, Textual support number: 1 CONT

[...] non seulement les roches supérieures altérées peuvent avoir été différentes de celles qui se trouvent actuellement en dessous, mais aussi les conditions d'altération peuvent avoir été autres [...]  3, record 6, French, - roche%20alt%C3%A9r%C3%A9e

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

An orthorhombic mineral which consists of an anhydrous calcium sulfate representing gypsum without its water of crystallization and usually occurring in white or slightly colored, granular to compact masses in sedimentary rocks or associated with gypsum and halite in evaporites.  4, record 7, English, - anhydrite

Record number: 7, Textual support number: 1 CONT

Anhydrite is often important especially in porphyry copper deposits... and it can form up to 15% of the altered rock.  5, record 7, English, - anhydrite

Record number: 7, Textual support number: 1 OBS

anhydrite: So named because it is the anhydrous member of the calcium sulfate compounds, the others being bassanite and gypsum.  4, record 7, English, - anhydrite

Record number: 7, Textual support number: 2 OBS

Chemical formula: CaSO₄•2H₂O or CaSO₄  4, record 7, English, - anhydrite

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Sulfate du système orthorhombique, en cristaux tabulaires à 3 clivages orthogonaux, de couleur blanche, gris bleuâtre ou rougeâtre se présentant en masses fibreuses ou granulaires et compactes dans les roches sédimentaires.  5, record 7, French, - anhydrite

Record number: 7, Textual support number: 1 CONT

Anhydrite [...] ou karstenite : Ce minéral se présente en masses grenues ou lamellaires, souvent transparent et incolore, il peut être rendu opaque ou coloré par des inclusions et des oxydes de fer.  3, record 7, French, - anhydrite

Record number: 7, Textual support number: 1 OBS

Étymologie : du grec an, «privé de», et hudôr, «eau» (allusion à l'absence d'eau dans la composition).  6, record 7, French, - anhydrite

Record number: 7, Textual support number: 2 OBS

Formule chimique : CaSO₄•2H₂O ou CaSO₄ ou SO₄Ca  5, record 7, French, - anhydrite

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

Mineral del grupo de los sulfatos, CaSo₄, que cristaliza en el sistema rómbico, formando, generalmente, agregados masivos o fibrosos, blanco-grisáceos.  3, record 7, Spanish, - anhidrita

Record number: 7, Textual support number: 1 CONT

La tierra de anhidrita se usa como abono y, en menor escala, como retardador del cemento portland. En Alemania y en la Gran Bretaña se usa como base de producción del ácido sulfúrico.  4, record 7, Spanish, - anhidrita

Record number: 7, Textual support number: 1 OBS

Fórmula química: CaSO₄•2H₂O ou CaSO₄ ou SO₄Ca  5, record 7, Spanish, - anhidrita

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

The main or original porosity system in a rock or unconfined alluvial deposit.  2, record 8, English, - primary%20porosity

Record number: 8, Textual support number: 1 CONT

Porosity may be primary(original) or secondary. Primary porosity is that which the rock possesses at the end of its depositional phase, on first burial; it is the void space that would be present if the grains had not been altered, fractured, or dissolved.  3, record 8, English, - primary%20porosity

Record number: 8, Textual support number: 1 OBS

primary porosity: term used at Natural Resources Canada - Earth Sciences Sector.  4, record 8, English, - primary%20porosity

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Nous pourrons [...] distinguer : - les porosités primaires, formées par l'ensemble des pores produits au cours de la genèse de la roche, c'est-à-dire au cours de la sédimentation, ou au cours de la cristallisation ou du refroidissement s'il s'agit d'une roche métamorphique ou éruptive; - les porosités secondaires [...]  2, record 8, French, - porosit%C3%A9%20primaire

Record number: 8, Textual support number: 1 OBS

porosité primaire : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  3, record 8, French, - porosit%C3%A9%20primaire

Record 8,  Textual support,  Spanish

Record number: 8, Textual support number: 1 DEF

Propiedad de las rocas detríticas en las que se originan poros durante su formación.  1, record 8, Spanish, - porosidad%20primaria

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

A rock... that has not been subjected to or altered by surface weathering, such as a rock newly exposed by fracturing.  4, record 9, English, - fresh%20rock

Record number: 9, Textual support number: 1 CONT

... phosphate is recovered from fresh rock rather than from a weathered residuum ...  2, record 9, English, - fresh%20rock

Record number: 9, Textual support number: 1 OBS

unweathered rock: term used at Natural Resources Canada - Earth Sciences Sector.  5, record 9, English, - fresh%20rock

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 CONT

[...] tout ce qui contribue à imbiber la roche augmente son altération. Ce sera le cas [...] quand la roche présente une certaine perméabilité, par la présence de fissures ou de cavités. Celles-ci sont fréquentes dans les roches fraîches, même si la structure n'est pas vacuolaire [...]  5, record 9, French, - roche%20saine

Record number: 9, Textual support number: 2 CONT

Les processus chimiques et biologiques qui conduisent de la roche saine à ses produits de décomposition sont appelés altération.  6, record 9, French, - roche%20saine

Record number: 9, Textual support number: 1 OBS

Par opposition à «roche altérée».  7, record 9, French, - roche%20saine

Record number: 9, Textual support number: 2 OBS

roche fraîche : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  7, record 9, French, - roche%20saine

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

Containing chert.  3, record 10, English, - cherty

Record number: 10, Textual support number: 1 CONT

Silicification... involves an increase in the proportion of quartz or cryptocrystalline silica(i. e. cherty or opaline silica) in the altered rock.  4, record 10, English, - cherty

Record number: 10, Textual support number: 2 CONT

Relatively fine-grained clastic sediments occur in the immediate footwalls of deposits. Such sediments are locally carbonaceous, are in some cases chert-bearing, and may contain finely disseminated iron sulphide ...  2, record 10, English, - cherty

Record number: 10, Textual support number: 1 OBS

cherty: term used at Natural Resources Canada - Earth Sciences Sector.  5, record 10, English, - cherty

Record number: 10, Textual support number: 1 PHR

Cherty argillite, iron-formation, limestone, rock, shale.  6, record 10, English, - cherty

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 CONT

Les schistes carbonés contenant des minéraux sulfures de fer sont étroitement associés aux formations ferrifères cherteuses [...]  3, record 10, French, - cherteux

Record number: 10, Textual support number: 1 OBS

cherteux : terme en usage à Resources naturelles Canada - Secteur des sciences de la Terre.  4, record 10, French, - cherteux

Record number: 10, Textual support number: 1 PHR

Formation à chert.  2, record 10, French, - cherteux

Record number: 10, Textual support number: 2 PHR

Calcaire, shale cherteux.  5, record 10, French, - cherteux

Record number: 10, Textual support number: 3 PHR

Argilite, formation de fer, roche cherteuse.  5, record 10, French, - cherteux

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

... a rock that has been altered by physical and chemical process involving heat, pressure and derived fluids.  2, record 11, English, - metamorphosed%20rock

Record number: 11, Textual support number: 1 CONT

The structures of the rocks forming the shield areas are extremely complicated consisting mainly of intensely folded, highly metamorphosed rocks.  3, record 11, English, - metamorphosed%20rock

Record number: 11, Textual support number: 1 OBS

metamorphosed rock: term used at Natural Resources Canada - Earth Sciences Sector.  4, record 11, English, - metamorphosed%20rock

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

[...] roche qui a été enfouie à haute pression et haute température et qui ne présente plus ses textures et sa minéralogie d'origine.  3, record 11, French, - roche%20m%C3%A9tamorphis%C3%A9e

Record number: 11, Textual support number: 1 CONT

[...] un gisement de magnétite formé dans une roche carbonatée, métamorphisée au contact d'un granite, avec ou sans minéraux métasomatiques, peut être un gisement de fer sédimentaire, métamorphisée au contact du granite comme n'importe quelle autre roche.  4, record 11, French, - roche%20m%C3%A9tamorphis%C3%A9e

Record number: 11, Textual support number: 1 OBS

roche métamorphisée : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  5, record 11, French, - roche%20m%C3%A9tamorphis%C3%A9e

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

Said of a rock which has been altered by carbonatization.  3, record 12, English, - carbonatized

Record number: 12, Textual support number: 1 CONT

The host rock that had originally granitic composition is highly albitized, irregularly carbonatized and locally silicified.  4, record 12, English, - carbonatized

Record number: 12, Textual support number: 1 OBS

carbonatization: Introduction of, or replacement by, carbonates.  5, record 12, English, - carbonatized

Record number: 12, Textual support number: 1 PHR

Carbonatized rock.  6, record 12, English, - carbonatized

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 CONT

Les roches carbonatisées des épontes des veines de quartz aurifères se caractérisent par des valeurs de l'indice de carbonatisation normative élevée.  3, record 12, French, - carbonatis%C3%A9

Record number: 12, Textual support number: 2 CONT

Cette zone veinulée est encaissée dans des roches volcaniques intermédiaires, cisaillées, séricitisées et carbonatisées.  4, record 12, French, - carbonatis%C3%A9

Record number: 12, Textual support number: 3 CONT

Les roches encaissantes jouxtant les corps minéralisés sont souvent [...] carbonatées.  2, record 12, French, - carbonatis%C3%A9

Record number: 12, Textual support number: 1 OBS

Le terme «carbonaté» signifie «qui renferme un carbonate» alors que le terme «carbonatise» signifie «qui a été altéré par la carbonatisation». Le premier est donc statique et le second marque la fin d'un processus actif. Pour une roche qui a subi la carbonatisation, il est préférable de dire qu'elle a été «carbonatisée».  5, record 12, French, - carbonatis%C3%A9

Record 12,  Textual support,  Spanish

Record number: 12, Textual support number: 1 DEF

[Dícese de lo que se ha convertido en] sal o éster del ácido carbónico.  2, record 12, Spanish, - carbonatado

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

Hornblende diorite is found in Precambrian basement rocks, and is mottled light grey, pale pink, and greenish-black in colour. It consists mainly of substantially altered plagioclase feldspar(60%) and hornblende(40%), with minor amounts of magnetite and small veins of calcite and epidote... The rock is very coarse-to mainly coarse-grained. Very coarse-grained varieties can be pegmatitic with grains up to 7 cm in length, this type of rock can be called a pegmatitic hornblende diorite.  2, record 13, English, - pegmatitic%20hornblende%20diorite

Record number: 13, Textual support number: 1 OBS

pegmatitic hornblende diorite: term used at Natural Resources Canada - Earth Sciences Sector.  3, record 13, English, - pegmatitic%20hornblende%20diorite

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 CONT

Des dykes relativement épais, comme la diorite de Dufresnoy dans le Camp central, sont subconcordants à la stratigraphie et présentent des bordures métriques hybrides, qui renferment une abondance de xénolites des unités volcaniques adjacentes, passant graduellement à une phase marginale interne de gabbro à diorite à hornblende recoupée par une diorite quartzifère à hornblende pegmatitique et grenue, qui fait place vers l'intérieur du dyke à une phase dioritique grenue et plus leucocrate.  2, record 13, French, - diorite%20%C3%A0%20hornblende%20pegmatitique

Record number: 13, Textual support number: 1 OBS

diorite à hornblende pegmatitique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  3, record 13, French, - diorite%20%C3%A0%20hornblende%20pegmatitique

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

An iron formation in which the principal iron-rich minerals are oxides, typically hematite or magnetite ...  5, record 14, English, - oxide%2Dfacies%20iron%20formation

Record number: 14, Textual support number: 1 CONT

Sulphides generally comprise less than 10% of the altered rocks, except in oxide facies iron formation, in which they may represent up to 75% of the metasomatised rock.  3, record 14, English, - oxide%2Dfacies%20iron%20formation

Record number: 14, Textual support number: 2 CONT

Oxide facies BIF typically averages 30-35% Fe. These rocks are mineable provided they are amenable to beneficiation by magnetic or gravity separation of the iron minerals.  4, record 14, English, - oxide%2Dfacies%20iron%20formation

Record number: 14, Textual support number: 1 OBS

[The oxide-facies iron formation] is thought to be the shoreward facies of iron formation.  5, record 14, English, - oxide%2Dfacies%20iron%20formation

Record 14,  Textual support,  French

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 DEF

A roll orebody of the Wyoming type, which is bounded on the concave side by oxidized altered rock typically containing hematite or limonite, and on the convex side by relatively reduced altered rock typically containing pyrite and organic matter.  4, record 15, English, - roll%2Dfront%20deposit

Record number: 15, Textual support number: 1 CONT

roll-type uranium ore: C-shaped deposit, most commonly in sandstones, formed by advancing mineralizing fluids. Deposition takes place where groundwaters encounter reducing conditions ...  3, record 15, English, - roll%2Dfront%20deposit

Record number: 15, Textual support number: 1 OBS

Sandstone-uranium-vanadium-base metal deposits. - These deposits are found in terrestrial sediments ... Uranium-rich examples are called Colorado Plateau-type, carnotite-type, sandstone-type, Wyoming roll-front-type ... In deposits of this type one or two metals are present in economic amounts, whilst the others may be present in minor or trace quantities.  5, record 15, English, - roll%2Dfront%20deposit

Record number: 15, Textual support number: 2 OBS

Within carbonatites, deposits are often crescentic or rounded in form, reflecting the distribution of host intrusive phases. ... The deposits of this class are commonly groups of lenses or ore shoots of crescentic or annular form showing steep dips related to crystallization parallel to the walls of the intrusive complex, and are notable for great vertical continuity of the ore.  6, record 15, English, - roll%2Dfront%20deposit

Record number: 15, Textual support number: 3 OBS

Orebodies of the Wyoming type are crescent-shaped in cross section and typically form in relatively thick, tabular, or elongate sandstone bodies, with the tips of the crescent thinning and becoming tangent to mudstone layers above and below.  4, record 15, English, - roll%2Dfront%20deposit

Record number: 15, Textual support number: 1 PHR

Roll-front uranium deposit.  7, record 15, English, - roll%2Dfront%20deposit

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 CONT

Au Sud Texas, le gisement uranifère de Panna Maria, de type «roll», se serait formé selon ces processus biogéniques [...]  2, record 15, French, - gisement%20de%20type%20front%20de%20roll

Record number: 15, Textual support number: 1 OBS

Sous-type rolls [...]. - Il est bien représenté au Wyoming. [...] Une des principales caractéristiques du sous-type est le caractère sécant de la minéralisation sur la roche-hôte, les gisements ayant une forme de croissant.  2, record 15, French, - gisement%20de%20type%20front%20de%20roll

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 CONT

... types of hydrothermal breccias... include "jigsaw-puzzle" breccias, characterized by angular fragments of altered wall rock in a fine grained matrix of quartz and/or tourmaline...  1, record 16, English, - jigsaw%2Dpuzzle%20breccia

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 CONT

[Des] types de brèches hydrothermales [...] sont notamment des brèches à texture de «casse-tête», caractérisées par des fragments anguleux des roches encaissantes altérées répartis dans une matrice à grain fin de quartz ou de tourmaline [...]  1, record 16, French, - br%C3%A8che%20%C3%A0%20texture%20de%20casse%2Dt%C3%AAte

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 OBS

A field term for any compact dark-green altered or metamorphosed basic igneous rock that owes its color to chlorite, actinolite, or epidote.  3, record 17, English, - greenstone

Record number: 17, Textual support number: 1 PHR

Greenstone sequence, terrane.  4, record 17, English, - greenstone

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 CONT

Chlorites et épidotes ont une coloration verte plus ou moins prononcée. C'est ce qui explique qu'on désigne sous le nom de roches vertes les roches métamorphiques [...] qui les renferment en abondance.  2, record 17, French, - roche%20verte

Record number: 17, Textual support number: 2 CONT

Roches vertes. Expression désignant d'une manière générale l'ensemble des roches magmatiques plutoniques et effusives, basiques et ultrabasiques, dont la teinte verte est due au développement de chlorite, épidote, amphibole, et serpentine, du fait de l'altération et, plus souvent, du métamorphisme [...]  3, record 17, French, - roche%20verte

Record number: 17, Textual support number: 3 CONT

Associés à des roches vertes (gabbros et dolérites, basaltes avec coussinets, tufs), il existe en Australie des filons aurifères.  4, record 17, French, - roche%20verte

Record number: 17, Textual support number: 1 PHR

Séquence, terrane de roches vertes.  5, record 17, French, - roche%20verte

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

A rock that has been altered by alkali(Na/K) metasomatism.  1, record 18, English, - fenite

Record number: 18, Textual support number: 1 CONT

Carbonatites are generally surrounded by an aureole of metasomatically altered rocks called fenites produced by reaction of country rock with peralkaline fluids released from the carbonatite complex...  1, record 18, English, - fenite

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 DEF

Roche modifiée par un métasomatisme alcalin (Na/K).  1, record 18, French, - f%C3%A9nite

Record number: 18, Textual support number: 1 CONT

Les carbonatites sont généralement entourées d'une auréole de roches métasomatisées. Ces roches, appelées fénites, résultent de la réaction entre la roche encaissante et des fluides hyperalcalins libérés du complexe carbonatitique [...]  1, record 18, French, - f%C3%A9nite

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 CONT

Sulphides generally comprise less than 10% of the altered rocks, except in oxide facies iron formations, in which pyrite may represent up to 75% of the metasomatised rock.  1, record 19, English, - metasomatised%20rock

Record 19,  Textual support,  French

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

A sedimentary rock that consists of, or contains an appreciable amount of, original or subsequently introduced organic material, including plant and animal residues and organic derivatives greatly altered(carbonized or bitumenized) from the original remains.  2, record 20, English, - carbonaceous%20rock

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

Roche sédimentaire constituée essentiellement de composés du carbone organique.  2, record 20, French, - roche%20carbon%C3%A9e

Record number: 20, Textual support number: 1 CONT

Essentiellement composées de carbone ou de ses composés les carbures d'hydrogène, les roches carbonées ont la propriété d'être combustibles. Elles sont issues de la décomposition de la matière organique, végétale ou animale, sous l'action de micro-organismes.  3, record 20, French, - roche%20carbon%C3%A9e

Record number: 20, Textual support number: 2 CONT

Roches carbonées : [...] Tourbe; lignite; houille ; anthracite; pétrole; ambre.  4, record 20, French, - roche%20carbon%C3%A9e

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

The scouring of a borehole with water while drilling.  2, record 21, English, - flushing

Record number: 21, Textual support number: 1 OBS

... the fluid content of [core] samples has been altered by two processes.... The differential pressure between the mud column and the formation fluids causes mud and mud filtrate to invade the formation, thus flushing the formation with mud and its filtrate. The filtrate displaces some of the original fluids. This displacement process changes the original fluid contents of the in-place rock.  3, record 21, English, - flushing

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 OBS

[...] pendant le carottage la boue ou le filtrat envahit la formation et la carotte prélevée, et chasse devant elle une partie des fluides saturant la roche. Il en résulte une modification dans la saturation de celle-ci en eau et en huile.  1, record 21, French, - lavage%20de%20la%20carotte

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

...breccias contain angular rock fragments... set in a fine-grained, sandy or silty matrix.  2, record 22, English, - angular%20fragment

Record number: 22, Textual support number: 2 CONT

Breccias are characterized by angular fragments of altered wall rock in a matrix of quartz and/or tourmaline.  3, record 22, English, - angular%20fragment

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 CONT

Le transport glaciaire et fluvioglaciaire sur plusieurs kilomètres des fragments anguleux de grenat n'a pas eu pour effet de réduire leur taille ou de changer leur forme.  2, record 22, French, - fragment%20anguleux

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

A rock altered by more than one episode of metamorphism.  1, record 23, English, - polymetamorphic%20rock

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 DEF

(...) roches (...) qui ont subi plusieurs métamorphismes successifs.  1, record 23, French, - roche%20polym%C3%A9tamorphique

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 OBS

The process whereby the chemical composition of a magma is altered as a result of the "assimilation" of country rock.  1, record 24, English, - contamination

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 OBS

(...) des roches endogènes, même situées assez près l'une de l'autre sur le terrain, peuvent avoir des compositions chimiques différentes. (...) un même magma, montant des profondeurs, s'est enrichi en s'incorporant tout ou partie des terrains traversés, par "digestion" encore appelée "contamination".  1, record 24, French, - contamination

Record 24,  Textual support,  Spanish