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

Cryogenian

Hierarchy:Precambrian Proterozoic  Neoproterozoic
   Cryogenian
Classification:Period (as per International Commission on Stratigraphy)
Top:~635 Ma
Base:720 Ma
Preceeds:Ediacaran
Follows:Tonian
GSSP:Defined chronometrically; but will be replaced by GSSP. First glacial episode occurred after 750 Ma
Possible "Snowball Earth" period. Fossils still rare. Rodinia landmass begins to break up. Late Ruker / Nimrod Orogeny in Antarctica tapers off.
 

Geologic Events

Event NameTypeAgeArea
Marinoan glaciation ("Snowball earth") (concludes)Glaciation Event~650 - ~635 MaGlobal
Cadomian orogeny (concludes)Orogeny~660 - ~540 MaEurope
Sturtian glaciationGlaciation Event717.4 ± 0.1 - ~660 MaGlobal
Rodinia breakup (ongoing)Continental Breakup750 - 633 MaGlobal
Pannotia supercontinent (ongoing)Supercontinent750 - 530 MaGlobal
Pan-African orogeny (concludes)Orogeny~870 - ~550 MaAfrica


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 10, 2018 06:16:01
Go to top of page