Nectarian
| Nectarian | ||||||
|---|---|---|---|---|---|---|
| Chronology | ||||||
| ||||||
| 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 was from 3.920 billion years ago to 3.850 billion 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. The period ended with the formation of the Imbrium basin, which initiated the Imbrian Period.[1] Magnetic anomalies found in some Nectarian Period basins suggest that the Moon possessed a core dynamo magnetic field at that time.[2]
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Colors =
id:prenectarian value:rgb(0.823,0.302,0.380) id:nectarian value:rgb(0.898,0.329,0.071) id:imbrian value:rgb(0,0.481,0.811) id:earlyimbrian value:rgb(0,0.404,0.741) id:lateimbrian value:rgb(0,0.557,0.882) id:eratosthenian value:rgb(0.238,0.839,0.728) id:copernican value:rgb(0.5,0.5,0.5)
Period = from:-4533 till:0 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:500 start:-4500 ScaleMinor = unit:year increment:100 start:-4500
PlotData=
align:center textcolor:black fontsize:8 mark:(line,black) width:25 shift:(0,-5)
bar:Period
from: -1100 till: 0 text:Copernican color:copernican from:-3200 till: -1100 text:Eratosthenian color:eratosthenian from:-3850 till: -3200 text:Imbrian color:imbrian from: -3920 till: -3850 text:N shift:(2,-5) color:nectarian from: start till: -3920 text:Pre-Nectarian color:prenectarian
bar:Epoch
from: -3200 till: 0 color:white from: -3800 till: -3200 text:Late color:lateimbrian from: -3850 till: -3800 text:Early shift:(-20,-5) color:earlyimbrian from: start till: -3850 color:white
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