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YOUNGER PROTEROZOIC [4 records]

Record 1 2010-04-21

English

Subject field(s)
  • Chronology
  • Geology
DEF

... the earlier interval in the twofold subdivision of the Precambrian time.

CONT

... the three main stages of earth history, the Archean, Proterozoic, and Phanerozoic, are recorded in different responses of the sialic (continental) crust to different geothermal gradients. In other words, it seems that the earth was hotter in the Archean and has continuously cooled ...

OBS

The term Archeozoic has been more or less synonymous with Archean, which has been more widely used, especially outside the United States.

OBS

Subdivision of the Precambrian.... Lake Superior studies resulted in two formally described systems, the older Archean and the younger Algonkian eras. Today, these subdivisions are considered to be of much greater magnitude than systems; the terms Archeozoic and Proterozoic are now preferred for these subdivisions.

Key term(s)
  • Archaean age
  • Archaean eon

French

Domaine(s)
  • Chronologie
  • Géologie
DEF

Période géologique la plus reculée dans le temps, antérieure à 2,6 milliards d'années.

CONT

Généralement, on divise le Précambrien en un Précambrien ancien souvent dit Archéen, [...] et un Précambrien récent, autrefois dit Algonkien, souvent appelé Protérozoïque [...]

OBS

Ces termes appartiennent aux domaines de la stratigraphie et de la géochronologie.

Spanish

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

Primero en antigüedad de los dos eratemas en que se divide el eonotema Arqueozoico. Comprende un intervalo entre el origen de la Tierra hasta los 2 500 millones de años antes de los tiempos actuales.

Save record 1

Record 2 2006-12-06

English

Subject field(s)
  • Chronology
  • Geology
DEF

The more recent of two great divisions of the Precambrian.

OBS

Subdivision of the Precambrian.... Lake Superior studies resulted in two formally described systems, the older Archean and the younger Algonkian eras. Today, these subdivisions are considered to be of much greater magnitude than systems; the terms Archeozoic and Proterozoic are now preferred for these subdivisions.

French

Domaine(s)
  • Chronologie
  • Géologie
DEF

Portion la plus récente des temps précambriens (2 600 à 570 m.a.).

CONT

Généralement, on divise le Précambrien en un Précambrien ancien souvent dit Archéen, [...] et un Précambrien récent, autrefois dit Algonkien, souvent appelé Protérozoïque [...]

OBS

[...] les terrains rangés dans l'Algonkien ont fait l'objet de distinctions qui ont fait tomber le terme Algonkien en désuétude au profit de Protérozoïque [...]

Spanish

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

Parte superior del precámbrico. Sucede al arqueozoico y precede al cámbrico, lo cual permite atribuirle una duración de 2000 millones de años (de -2600 a -600).

OBS

Algonquino: Debe su nombre a Algonkín, región de Canadá, pero el mismo terreno existe en otras partes (Escocia, Finlandia, etc.).

OBS

Pese a que la fuente citada 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.

Save record 2

Record 3 2004-07-12

English

Subject field(s)
  • Chronology
  • Petrography
CONT

Younger Proterozoic... cover strata.

French

Domaine(s)
  • Chronologie
  • Pétrographie
CONT

Strates de couverture du Protérozoïque tardif [...]

Spanish

Save record 3

Record 4 1985-04-03

English

Subject field(s)
  • Occupation Names (General)
  • Microbiology and Parasitology
CONT

... Russian paleomicrobiologist have long noted the average cell diameter of fossil microorganisms increases substantially in rocks of Younger Proterozoic age.

French

Domaine(s)
  • Désignations des emplois (Généralités)
  • Microbiologie et parasitologie

Spanish

Save record 4

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