TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A geologic map that shows the features of a region in their original geographic positions, before the thrusting or folding of the crustal rocks took place.  2, record 1, English, - palinspastic%20map

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Carte paléogéologique particulière qui replace les formations dans leur position originelle ou historique relative.  1, record 1, French, - carte%20palinspastique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

Reconstruction plane of the present state of the intersection of the geological beds with a reference surface corresponding most often to an unconfomity or being the contact surface of the allochthon on the autochthon in the case of a nappe.  3, record 2, English, - subcrop%20map

Record number: 2, Textual support number: 1 CONT

A subcrop map shows what an area would look like if the topmost deposits would be removed. It is therefore very useful for people such as well drillers, who are curious to know which rocks are present at a certain depth, instead of at the surface.  5, record 2, English, - subcrop%20map

Record number: 2, Textual support number: 1 OBS

subcrop map: term used at Natural Resources Canada - Earth Sciences Sector.  6, record 2, English, - subcrop%20map

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Restitution plane de l'état actuel de l'intersection de couches géologiques avec une surface de référence correspondant le plus souvent à une discordance ou pouvant être la surface de contact de l'allochtone sur l'autochtone dans le cas d'une nappe.  2, record 2, French, - carte%20d%27%C3%A9corch%C3%A9%20g%C3%A9ologique

Record number: 2, Textual support number: 1 OBS

carte d'écorché géologique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  3, record 2, French, - carte%20d%27%C3%A9corch%C3%A9%20g%C3%A9ologique

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The transition from kyanite to andalusite is known as the andalusite isograd, while the transition from andalusite to sillimanite is called the sillimanite isograd.  2, record 3, English, - sillimanite%20isograd

Record number: 3, Textual support number: 2 CONT

Note that if were making a geologic map, we could draw a line on the map that separates the pelitic rocks containing only Pyrophyllite from those containing Kyanite + Quartz. Such a line(a surface in 3 dimensions) is called an isograd(iso-same, grad-grade). In this case, since it represents the first appearance of Kyanite, we call it the Kyanite Isograd... If we continue walking along the direction that T & P increased in these rocks during metamorphism, we would eventually come to another place where in the pelitic rocks the mineral assemblage changes. This time the change is from Kyanite + Quartz to Sillimanite + Quartz. Again, we can draw a line on the map that indicates this change in mineral assemblage, this time calling it the Sillimanite Isograd. Just like before, this represents the point on the phase diagram, above, where the geothermal gradient intersected the boundary for the reaction... Because the sandstone and the limestone do not contain Kyanite, the isograd does not appear in these rocks, but we can still extrapolate its position across the map or outcrop.  3, record 3, English, - sillimanite%20isograd

Record number: 3, Textual support number: 1 OBS

isograd: A line or surface (either imaginary or in a diagram) joining points where the rock originated under the same conditions of pressure and temperature, as indicated by similarity of facies or metamorphic grade.  4, record 3, English, - sillimanite%20isograd

Record number: 3, Textual support number: 2 OBS

sillimanite isograd: term used at Natural Resources Canada - Earth Sciences Sector.  5, record 3, English, - sillimanite%20isograd

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 OBS

Un isograde représente une ligne sur une carte résultant de l'intersection d'une surface isograde avec la topographie. Elle représenterait une réaction métamorphique et serait implicitement diachrone à cause du temps requis pour mobiliser la chaleur, les fluides et les réactions dans les roches.  2, record 3, French, - isograde%20de%20la%20sillimanite

Record number: 3, Textual support number: 2 OBS

isograde de la sillimanite : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  3, record 3, French, - isograde%20de%20la%20sillimanite

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

In addition to determining the source(s) of H, C, O, and S in ores and altered rocks..., stable isotope and fluid inclusion data may be utilized to map paleogeothermal systems and, in part, deduce their time-space hydrological evolution.  1, record 4, English, - stable%20isotopic%20data

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

En plus de déterminer la ou les sources de H, C, O et S dans les minerais et les roches altérées [...], les données sur les isotopes stables et les inclusions fluides peuvent servir à établir une représentation graphique des systèmes paléogéothermiques et, en partie, à déduire leur évolution hydrologique dans le temps et l'espace.  1, record 4, French, - donn%C3%A9es%20sur%20les%20isotopes%20stables

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 OBS

... stable isotope and fluid inclusion data may be utilized to map paleogeothermal systems and ... deduce their time-space hydrological evolution.  1, record 5, English, - map

Record number: 5, Textual support number: 2 OBS

Prospective areas for hidden deposits may also be targeted by various geophysical techniques. These may include gravity surveys to map subsurface structure... and electromagnetic surveys to map hydrothermally altered rocks.  1, record 5, English, - map

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

[...] les données sur les isotopes stables et les inclusions fluides peuvent servir à établir une représentation graphique des systèmes paléogéothermiques et [...] à déduire leur évolution hydrologique dans le temps et l'espace.  1, record 5, French, - %C3%A9tablir%20une%20repr%C3%A9sentation%20graphique

Record number: 5, Textual support number: 2 OBS

On peut aussi cibler des zones prometteuses en gîtes cachés au moyen de diverses techniques géophysiques telles que des levés gravimétriques pour cartographier la structure souterraine et des levés électromagnétiques [...] pour cartographier la répartition des roches altérées par des fluides hydrothermaux.  1, record 5, French, - %C3%A9tablir%20une%20repr%C3%A9sentation%20graphique

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

Electron backscattered diffraction in a scanning electron microscope allows the crystallographic orientation of small grains to be measured precisely. EBSD can be used to study crystallographic preferred orientations, grain boundary and twin characteristics, to quantitatively map grain microstructures and for characterisation of fine-grained phases. We are using the EBSD to investigate the microstructural and crystallographic signatures of deformation recrystallisation and reaction processes in rocks.  1, record 6, English, - electron%20backscattered%20diffraction

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

A l'échelle mésoscopique, la diffraction des électrons rétrodiffusés (EBSD : Electron BackScattered Diffraction) permet, en mode automatique, de reconstruire la microstructure en termes d'orientations à partir de l'indexation de diagrammes de Kikuchi. Cette technique de microscopie à imager les orientations [...] est particulièrement bien adaptée à l'étude de la croissance granulaire [...]  2, record 6, French, - diffraction%20des%20%C3%A9lectrons%20r%C3%A9trodiffus%C3%A9s

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

Pertaining to the oldest lunar topographic features and lithologic map units constituting a system of rocks that appear in the mountainous terrae and are well displayed in the southern part of the visible lunar surface and over much of the reverse side.  1, record 7, English, - pre%2DImbrian

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Propre à la plus ancienne division des temps lunaires.  2, record 7, French, - pr%C3%A9imbrien

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

A map showing the areal distribution of formations immediately overlying an unconformity.  3, record 8, English, - lap%2Dout%20map

Record number: 8, Textual support number: 1 OBS

worm's eye map : A term applied to what is formally known as a supercrop map or a lap-out map, in reference to the pattern of formations that would be visible to an observer looking upward at the bottom of the rocks overlying a given surface.  3, record 8, English, - lap%2Dout%20map

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Figuration actuelle des formations qui surmontent directement une surface de discordance ou l'autochtone dans le cas d'une nappe.  1, record 8, French, - carte%20d%27%C3%A9corch%C3%A9%20inverse

Record 8,  Textual support,  Spanish