Eoarchean
id:
eoarchean-173-113604
title:
Eoarchean
text:
The Eoarchean is the first era of the Archean Eon of the geologic record. It spans 431 million years, from the end of the Hadean Eon 4031 Mya to the start of the Paleoarchean Era 3600 Mya. Some estimates place the beginnings of life on Earth in this era, while others place it earlier. Evidence of archaea and cyanobacteria date to 3500 Mya, comparatively shortly after the Eoarchean. At that time, the atmosphere was without oxygen and the pressure values ranged from 10 to 100 bar.
brand slug:
wiki
category slug:
encyclopedia
description:
First era of the Archean Eon
original url:
https://en.wikipedia.org/wiki/Eoarchean
date created:
2004-07-07T13:23:33Z
date modified:
2024-09-02T04:11:02Z
main entity:
{"identifier":"Q731470","url":"https://www.wikidata.org/entity/Q731470"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/2/21/Greenlandite_%28fuchsite-quartz_gneiss%29%2C_Greenland.jpg","width":773,"height":809}
fields total:
13
integrity:
16