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Geologic time scale

The geologic time scale or geological time scale describes how geologic time is divided into standardised intervals. It uses the rock record together with the principles of chronostratigraphy to place rock sequences into their relative age positions, and geochronology techniques, such as radiometric dating, to precisely date the boundaries between them.

History, Measurement & Standards

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History of the geologic time scale

Arthur HolmesJames HuttonPhilosophersAncient GreeceXenophanes of Colophon
69 related topics

Divisions of geologic time

MaYearsJurassicSI prefixGa
36 related topics

Extraterrestrial geologic time scales

PlanetsSatellitesSolar SystemVenusMars
21 related topics

Principles

Deep timeEarth's history4.54 ± 0.05 billion yearsStratigraphyEarth's crust
24 related topics

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Overview

Principles

Divisions of geologic time

Naming of geologic time

History of the geologic time scale

Table of geologic time

Major proposed revisions to the ICC

Extraterrestrial geologic time scales

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Geologic time scale

Nodes202
Edges201
Triples262
Avg. degree1.99
Density0.009901
Components1

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Geologic time scale

Top relations

related to Further reading · 93
Geologic time scale → Academic Press, Advances, Aiden, Alan, Amsterdam, Andrew, Astrochronology, Aubry, Bibcode, Biodynamic Processes, Bleeker, Brian, Calcareous Nannofossil Biostratigraphy, Callisto Reference, Carbon Isotope Stratigraphy, Case Studies, CBO9780511536045, Christie-Blick, Climate Change, CORE
related to Formulation of a modern geologic time scale · 37
Geologic time scale → Alexandre Brongniart, Anton Moro, Biblical, Charles Lyell, Deluge, During, Earth, Edinburgh, Geology, Georges Cuvier, Giovanni Arduino, Giovanni Targioni Tozzetti, Halloy, Hutton's, ICC/GTS, In, Instead, James Hutton, James Ussher, Jean
related to External links · 33
Geologic time scale → Alfred, April, Archived, August, British Geological Survey, Children, Committee, Deep Time, Earth, Exploring Time, Geologic Time, Geological Time Systems, Geological TimechartGeoWhen Database, Global Boundary Stratotype, GSA, History, Information, Interactive InfographicGeology Buzz, International Chronostratigraphic Chart, January
related to Global Boundary Stratotype Section and Point (GSSP) · 22
Geologic time scale → All, Archean, Chicxulub, Cretaceous, Ediacaran, For, Global Boundary Stratotype Section, Global Standard Stratigraphic Ages, GSSP, Hadean, Historically, Oued Djerfane, Paleogene, Paleogene System, Point, Proposals, The ICS, The Proterozoic, These, This
related to Lunar (selenological) time scale · 16
Geologic time scale → Copernican, Early, Earth's, Earth's Moon, Eratosthenian, Five, Imbrian, Late, Lunar, Moon's, Nectarian, Pre-Nectarian, Solar System, The, The Moon, This
related to Modern international geological time scale · 16
Geologic time scale → At, Commission, Following, Geological Time Scale, GTS, Holmes, However, ICC, ICS, ICS International Chronostratigraphic Chart, IUGS, One, Stratigraphy, Subsequent Geologic Time Scale, The, The ICS
related to Table of geologic time · 13
Geologic time scale → As, Earth, Earth's, ICS, International Chronostratigraphic Chart, International Commission, Ma, Phanerozoic, Phanerozoic Eon, Stratigraphy, The, This, While
related to Divisions of geologic time · 10
Geologic time scale → For, Ga, However, International Chronostratigraphic Chart, International Commission, Jurassic Period, Ma, Other SI, Stratigraphy, The
see also · 9
Geologic time scale → Big BangTimeline, Cosmic, EarthHistory, Geology, History, MarsGeon, Solar SystemGeology, United StatesTimeline, Zealand
related to Principles · 3
Geologic time scale → Earth's, It, The

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Important terminology

time scale geologic ma system stratigraphy period chronostratigraphic rock geological earth history named used erathem isbn unit names ed units

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Geologic time scaleis away of representing deep time based on events that have occurred throughout Earth's history0.90text
lithologiesinstance ofThe time scale has been developed through the study of rock layers and the observation of their relationships and identifying features0.80text
paleomagnetic propertiesinstance ofThe time scale has been developed through the study of rock layers and the observation of their relationships and identifying features0.80text
and fossilsinstance ofThe time scale has been developed through the study of rock layers and the observation of their relationships and identifying features0.80text
Girolamo Fracastoro shared da Vinci's viewsinstance ofscholars0.80text
and found the attribution of fossils to the 'Deluge' absurdinstance ofscholars0.80text
the formation of the Solar Systeminstance ofIt included a proposal to substantially revise the pre-Cryogenian time scale to reflect important events0.80text
the Great Oxidation Eventinstance ofIt included a proposal to substantially revise the pre-Cryogenian time scale to reflect important events0.80text
among othersinstance ofIt included a proposal to substantially revise the pre-Cryogenian time scale to reflect important events0.80text
while at the same time maintaining most of the previous chronostratigraphic nomenclature for the pertinent time spaninstance ofIt included a proposal to substantially revise the pre-Cryogenian time scale to reflect important events0.80text
Geologic time scalerelated to Divisions of geologic timeThe0.60section
Geologic time scalerelated to Divisions of geologic timeInternational Commission0.60section

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