Difference between revisions of "Template:Geologic time scale"

From blackwiki
Jump to navigation Jump to search
imported>Dr.Bastedo
(deleted one word)
imported>Dr.Bastedo
(inserted kerogen ref)
Line 430: Line 430:
 
|rowspan="4" style="background:#809090"| [[Hadean]]<br /><ref name="Precambrian-Time" /><ref name="hadeon-not-formal">Though commonly used, the [[Hadean]] is not a formal eon and no lower bound for the Archean and Eoarchean have been agreed upon. The Hadean has also sometimes been called the Priscoan or the Azoic. Sometimes, the Hadean can be found to be subdivided according to the [[lunar geologic time scale]]. These eras include the [[Cryptic era|Cryptic]] and [[Basin Groups]] (which are subdivisions of the [[Pre-Nectarian|pre-Nectarian era]]), [[Nectarian]], and [[Early Imbrian]] units.</ref>
 
|rowspan="4" style="background:#809090"| [[Hadean]]<br /><ref name="Precambrian-Time" /><ref name="hadeon-not-formal">Though commonly used, the [[Hadean]] is not a formal eon and no lower bound for the Archean and Eoarchean have been agreed upon. The Hadean has also sometimes been called the Priscoan or the Azoic. Sometimes, the Hadean can be found to be subdivided according to the [[lunar geologic time scale]]. These eras include the [[Cryptic era|Cryptic]] and [[Basin Groups]] (which are subdivisions of the [[Pre-Nectarian|pre-Nectarian era]]), [[Nectarian]], and [[Early Imbrian]] units.</ref>
 
|style="background:#809090"| [[Early Imbrian]]<ref name="Precambrian-Time" /><ref name="Lunar-geologic-timescale-names">These unit names were taken from the [[Lunar geologic timescale]] and refer to geologic events that did not occur on Earth. Their use for Earth geology is unofficial.</ref>
 
|style="background:#809090"| [[Early Imbrian]]<ref name="Precambrian-Time" /><ref name="Lunar-geologic-timescale-names">These unit names were taken from the [[Lunar geologic timescale]] and refer to geologic events that did not occur on Earth. Their use for Earth geology is unofficial.</ref>
|colspan="4"| Indirect [[photosynthetic]] evidence of primoidial life.  This era overlaps the end of the [[Late Heavy Bombardment]] of the [[inner solar system|inner]] [[solar system]].
+
|colspan="4"| Indirect [[photosynthetic]] evidence (e.g., [[kerogen]]) of primoidial life.  This era overlaps the end of the [[Late Heavy Bombardment]] of the [[inner solar system|inner]] [[solar system]].
 
|style="background:#809090"| c.3850
 
|style="background:#809090"| c.3850
 
|-
 
|-

Revision as of 20:29, 11 January 2011