Ectasian
Also known as Ectasian Period, Ectasian System
The Ectasian Period (from , meaning "extension") is the second geologic period in the Mesoproterozoic Era and lasted from Mya to Mya (million years ago). Instead of being based on stratigraphy, these dates are defined chronometrically.
Key facts
- Geologic timespan.name
- Ectasian
- Geologic timespan.color
- Ectasian
- Geologic timespan.top_bar
- all time
- Geologic timespan.image_map
- 1260 Ma paleoglobe.png
- Geologic timespan.caption_map
- Map of Earth in the late Ectasian, c. 1260 Ma
- Geologic timespan.timeline
- Ectasian
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- Formal
- Geologic timespan.celestial_body
- earth
- Geologic timespan.usage
- Global (ICS)
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- ICS Time Scale
- Geologic timespan.chrono_unit
- Period
- Geologic timespan.strat_unit
- System
Article
6 sectionsContents
- Geology
- Biology
- Climate
- See also
- References
- Further reading
The Ectasian Period (from , meaning "extension") is the second geologic period in the Mesoproterozoic Era and lasted from Mya to Mya (million years ago). Instead of being based on stratigraphy, these dates are defined chronometrically.
Geologically, the name refers to the continued expansion of platform covers during this period. In the early Ectasian period, a day was 17 hours and 32 minutes. At the end of the Ectasian, it was 18 hours and 28 minutes.