ALMOST THERE!. Help us with a final push needed to keep mindat.org running. Click here to help.
Catawiki are hosting a mindat.org benefit auction. All proceeds to mindat.org! BID NOW
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Paleoarchean

Hierarchy:Precambrian Archean
  Paleoarchean
Classification:Era (as per International Commission on Stratigraphy)
Top:3200 Ma
Base:3600 Ma
Preceeds:Mesoarchean
Follows:Eoarchean
GSSP:Defined chronometrically
First known oxygen-producing bacteria. Oldest definitive microfossils. Oldest cratons on Earth (such as the Canadian Shield and the Pilbara Craton) may have formed during this period. Rayner Orogeny in Antarctica.
 

Geologic Events

Event NameTypeAgeArea
Great Oxygenation Event (concludes)Major Climatic Event~3500 - ~850 MaGlobal
Rayner orogeny (concludes)Orogeny~3500 MaAntarctica
First life (concludes)Evolutionary event~4280 - ~3500 MaGlobal


Overview of geological time

List all geological events
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 17, 2018 11:59:20
Go to top of page