登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Paleoproterozoic

Hierarchy:Precambrian Proterozoic
  Paleoproterozoic
Classification:Era (as per International Commission on Stratigraphy)
Top:1600 Ma
Base:2300 Ma
Preceeds:Mesoproterozoic Calymmian
Follows:Siderian
Primary Divisions:StatherianOrosirianRhyacianSiderian
FGDC code:X
The earliest of three subdivisions of the Proterzoic Eon. This is when the continents first stabilized. Evidence suggests at this time there were about 450 days in a year, implying 20-hour days.
 

Geologic Events

Event NameTypeAgeArea
Gothian orogeny (concludes)Orogeny~1750 - ~1500 MaEurope
Sudbury impactImpact Event1850 ± 3 MaSudbury, Ontario
Early Ruker orogenyOrogeny2000 - 1700 MaAntarctica
Svecofennian orogeny (concludes)Orogeny~2000 - ~1750 MaEurope
Vredefort impactImpact Event2023 ± 0.004 MaFree State Province, South Africa
Columbia (Nuna) supercontinent assemblyContinental Assembly2125 ± 125 - 1780 ± 70 MaGlobal
Eburnean orogeny (concludes)Orogeny~2200 - ~2000 MaWest Africa
Huronian glaciation (concludes)Glaciation Event~2400 - ~2100 MaGlobal
Great Oxygenation Event (concludes)Major Climatic Event~3500 - ~850 MaGlobal


Overview of geological time

List all geological events
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.1.18 04:03:37
Go to top of page