Nectarian

Nectarian
Nectarian
3920 – 3850 Ma PreN I N E C
Chronology
−4500 — – −4000 — – −3500 — – −3000 — – −2500 — – −2000 — – −1500 — – −1000 — – −500 — – 0 —	Pre-Nectarian Nectarian Eratosthenian Copernican Late Imbrian Early Imbrian
	Periods on the Lunar Geologic Timescale. Axis scale: Millions of years ago.;
Usage information
Celestial body	Earth's Moon
Time scale(s) used	Lunar geologic timescale
Definition
Chronological unit	Period

The Nectarian Period of the lunar geologic timescale runs from 3920 million years ago to 3850 million years ago. It is the period during which the Nectaris Basin and other major basins were formed by large impact events. Ejecta from Nectaris form the upper part of the densely cratered terrain found in lunar highlands.

Millions of years before present

Relationship to Earth's geologic time scale[]

Since little or no geological evidence on Earth exists from the time spanned by the Nectarian period of the Moon, the Nectarian has been used by at least one notable scientific work^[1] as an unofficial subdivision of the terrestrial Hadean eon.

References[]

^ W. Harland; R. Armstrong; A. Cox; L. Craig; A. Smith; D. Smith (1990). A Geologic time scale 1989. Cambridge University Press.

[1] W. Harland; R. Armstrong; A. Cox; L. Craig; A. Smith; D. Smith (1990). A Geologic time scale 1989. Cambridge University Press.

[1]

v t Hadean Eon
Cryptic Basin Groups Nectarian Lower Imbrian
The Hadean does not have any subdivisions recognized by the International Commission on Stratigraphy. These subdivisions represent one proposal that is loosely based on the lunar geologic timescale.

Nectarian

Relationship to Earth's geologic time scale[]

See also[]

References[]