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Cryptic (geology), the Glossary

The Cryptic era is an informal term for the earliest geologic evolution of the Earth and Moon.^[1]

13 relations: Accretion disk, Basin Groups, Earth, Formation and evolution of the Solar System, Geologic time scale, Geology, Giant-impact hypothesis, Hadean, International Commission on Stratigraphy, Lunar geologic timescale, Moon, Planetary differentiation, Pre-Nectarian.
Geologic time scales of Earth
Hadean
Lunar geologic periods

Accretion disk

An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a massive central body.

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Basin Groups

Basin Groups refers to 9 subdivisions of the lunar Pre-Nectarian geologic period. Cryptic (geology) and Basin Groups are Hadean and lunar geologic periods.

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Earth

Earth is the third planet from the Sun and the only astronomical object known to harbor life.

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Formation and evolution of the Solar System

There is evidence that the formation of the Solar System began about 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud.

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Geologic time scale

The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.

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Geology

Geology is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time.

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Giant-impact hypothesis

The giant-impact hypothesis, sometimes called the Theia Impact, is an astrogeology hypothesis for the formation of the Moon first proposed in 1946 by Canadian geologist Reginald Daly.

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The Hadean is the first and oldest of the four known geologic eons of Earth's history, starting with the planet's formation about 4.6 billion years ago (estimated 4567.30 ± 0.16 million years ago set by the age of the oldest solid material in the Solar System found in some meteorites about 4.567 billion years old), and ended 4.031 billion years ago.

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International Commission on Stratigraphy

The International Commission on Stratigraphy (ICS), sometimes unofficially referred to as the "International Stratigraphic Commission", is a daughter or major subcommittee grade scientific daughter organization that concerns itself with stratigraphical, geological, and geochronological matters on a global scale.

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Lunar geologic timescale

The lunar geological timescale (or selenological timescale) divides the history of Earth's Moon into five generally recognized periods: the Copernican, Eratosthenian, Imbrian (Late and Early epochs), Nectarian, and Pre-Nectarian. Cryptic (geology) and lunar geologic timescale are lunar geologic periods.

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Moon

The Moon is Earth's only natural satellite.

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Planetary differentiation

In planetary science, planetary differentiation is the process by which the chemical elements of a planetary body accumulate in different areas of that body, due to their physical or chemical behavior (e.g. density and chemical affinities).

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Pre-Nectarian

The pre-Nectarian period of the lunar geologic timescale runs from 4.533 billion years ago (the time of the initial formation of the Moon) to 3.920 billion years ago, when the Nectaris Basin was formed by a large impact. Cryptic (geology) and pre-Nectarian are Hadean and lunar geologic periods.

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References

[1] https://en.wikipedia.org/wiki/Cryptic_(geology)

Also known as Cryptic era.