TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

EARLIER TERTIARY [5 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2015-04-17

English

Subject field(s)
  • Chronology
  • Petrography
  • Geology
DEF

An interval of geologic time incorporating the Oligocene, Eocene, and Paleocene of the Tertiary: the lower Tertiary.

CONT

Palaeogene (alternatively Paleogene) period is a unit of geologic time that began 65 and ended 23 million years ago. Lasting 42 million years, this period is most notable as being the time in which mammals evolved from small, simple forms into diverse animals ... This period consists of the Palaeocene, Eocene, and Oligocene epochs.

OBS

The terms "Paleogene System" and "Lower Tertiary System" have also been used to describe what is currently called the "Paleogene Period."

OBS

The term [Palaeogene] is almost obsolete.

Key term(s)
  • Palaeogene System

French

Domaine(s)
  • Chronologie
  • Pétrographie
  • Géologie
DEF

Première période de l'ère cénozoïque (40 millions d'années environ), subdivisée en trois époques (paléocène, éocène et oligocène.

OBS

Le Paléogène est caractérisé par la présence presque exclusive des Nummulites - d'où son nom de Nummulitique [...]

OBS

paléogène : Synonyme vieilli de nummulitique.

Spanish

Campo(s) temático(s)
  • Cronología
  • Petrografía
  • Geología
DEF

Primer período de la Era Terciaria de duración de 40 millones de años, hasta hace 25 millones de años.

OBS

Formado por los sistemas paleoceno, eoceno y oligoceno.

OBS

Pese a que una de las fuentes citadas escribe los nombres de los períodos geológicos con minúscula, el Diccionario de dudas de la Real Academia Española señala que tales sustantivos deben escribirse con mayúscula. Es el caso de Paleoceno, Eoceno y Oligoceno.

Save record 1

Record 2 2011-07-22

English

Subject field(s)
  • Biological Sciences
DEF

Theory according to which the binding of a substrate to an enzyme may cause conformational changes that align the catalytic groups in their correct orientations.

CONT

There is good evidence that yeast hexokinase, which phosphorylates glucose with the terminal phosphate of ATP, involves the induced fit theory. X-ray diffraction studies show that the binding of both the sugar and the nucleotide causes extensive changes in tertiary structure. Also, the binding of the nucleotide to one form of the enzyme is promoted by sugar binding. These results are in accord with earlier solution studies on the ATPase activity of the enzyme in the absence of glucose.

French

Domaine(s)
  • Sciences biologiques
DEF

Théorie selon laquelle l'interaction enzyme-substrat peut causer un changement conformationnel dans la protéine enzymatique.

CONT

La proposition faite par Koshland dès 1958 considère que le site actif, du fait d'un large déploiement d'amino-acides dans son environnement, possède une certaine flexibilité. De ce fait, au moment de l'entrée du substrat, le site actif réagit en s'adaptant minutieusement à la conformation du substrat et entreprend alors le processus de catalyse. Cette théorie de l'ajustement induit [...] a reçu des supports expérimentaux. Elle permet en outre de comprendre aisément la pénétration du substrat et le départ des produits en fin de réaction.

Spanish

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Record 3 2000-02-18

English

Subject field(s)
  • Educational Psychology
DEF

Student or person who achieves standards later in his/her career than appeared likely at earlier stages. Thus an undistinguished performance at school may be followed by greater success in tertiary education.

French

Domaine(s)
  • Psychologie scolaire

Spanish

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Record 4 1999-07-19

English

Subject field(s)
  • Geological and Other Scientific Names
OBS

A same designation could refer to a geographic or a geologic entity, sometimes with a slight variant in spelling or writing. It is important to distinguish one from the other and write each correctly according to the given context.

OBS

This Cretaceous volcanic activity affecting Sverdrup Basin was evidently an earlier event than the Tertiary, Thulean, volcanicity that affected the North Atlantic area.

French

Domaine(s)
  • Noms géologiques ou scientifiques
OBS

La règle concernant la majuscule au générique d'un nom géologique demeure imprécise. Habituellement, les noms de divisions stratigraphiques portent la majuscule et les entités de moindre importance n'en portent pas.

OBS

Une même désignation peut se référer à une entité géographique et à une entité géologique, parfois avec une légère variante. Il importe de bien distinguer l'une de l'autre et d'utiliser la graphie correcte selon le contexte.

OBS

L'activité volcanique dans le bassin de Sverdrup semble s'être manifestée avant l'action volcanique thuléenne du Tertiaire qui a déformé la région de l'Atlantique nord.

Spanish

Save record 4

Record 5 1999-07-14

English

Subject field(s)
  • Plant Biology
  • Ecology (General)
DEF

Two or more related climaxes or formations of similar general climatic features, similar life-forms, and common genera of dominants.

OBS

Relationship is regarded as due to a common origin from an ancestral climax(eoclimax) of tertiary or earlier time.

French

Domaine(s)
  • Biologie végétale
  • Écologie (Généralités)
DEF

Vrai climax complet.

Spanish

Save record 5

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