Statherian (Geological periods 🌍)

The Statherian Period is the final geologic period in the Paleoproterozoic Era and lasted from 1800 Mya to 1600 Mya. Instead of being based on stratigraphy, these dates are defined chronometrically. The period was characterized on most continents by either new platforms or final cratonization of fold belts. Oxygen levels were 10% to 20% of cu...

https://en.wikipedia.org/wiki/Statherian

#Statherian #Paleoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Statherian (Geological periods 🌍)

The Statherian Period is the final geologic period in the Paleoproterozoic Era and lasted from 1800 Mya to 1600 Mya. Instead of being based on stratigraphy, these dates are defined chronometrically. The period was characterized on most continents by either new platforms or final cratonization of fold belts. Oxygen levels were 10% to 20% of cu...

https://en.wikipedia.org/wiki/Statherian

#Statherian #Paleoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Statherian (Geological periods 🌍)

The Statherian Period is the final geologic period in the Paleoproterozoic Era and lasted from 1800 Mya to 1600 Mya. Instead of being based on stratigraphy, these dates are defined chronometrically. The period was characterized on most continents by either new platforms or final cratonization of fold belts. Oxygen levels were 10% to 20% of cu...

https://en.wikipedia.org/wiki/Statherian

#Statherian #Paleoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Tonian (Geological periods 🌍)

The Tonian is the first geologic period of the Neoproterozoic Era. It lasted from 1000 to 720 Mya. Instead of being based on stratigraphy, these dates are defined by the ICS based on radiometric chronometry. The Tonian is preceded by the Stenian Period of the Mesoproterozoic Era and followed by the Cryogenian. Rifting leading to the breakup of supercontin...

https://en.wikipedia.org/wiki/Tonian

#Tonian #Neoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Ectasian (Geological periods 🌍)

The Ectasian Period is the second geologic period in the Mesoproterozoic Era and lasted from 1400 Mya to 1200 Mya. Instead of being based on stratigraphy, these dates are defined chronometrically. Geologically the name refers to the continued expansion of platform covers during this period. In the early Ectasian period, a day was 17 hours and 32 min...

https://en.wikipedia.org/wiki/Ectasian

#Ectasian #Mesoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Siderian (Geological periods 🌍)

The Siderian Period is the first geologic period in the Paleoproterozoic Era and lasted from 2500 Ma to 2300 Ma. Instead of being based on stratigraphy, these dates are defined chronometrically. The deposition of banded iron formations peaked early in this period. These iron-rich formations were formed as anaerobic cyanobacteria produced waste oxy...

https://en.wikipedia.org/wiki/Siderian

#Siderian #Paleoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Calymmian (Geological periods 🌍)

The Calymmian Period is the first geologic period in the Mesoproterozoic Era and lasted from 1600 Mya to 1400 Mya. Instead of being based on stratigraphy, these dates are defined chronometrically. The period is characterised by expansion of existing platform covers, or by new platforms on recently cratonized basements. The supercontinent Columbia...

https://en.wikipedia.org/wiki/Calymmian

#Calymmian #Mesoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Orosirian (Geological periods 🌍)

The Orosirian Period is the third geologic period in the Paleoproterozoic Era and lasted from 2050 Mya to 1800 Mya. Instead of being based on stratigraphy, these dates are defined chronometrically. The later half of the period was an episode of intensive orogeny on virtually all continents. Two of the largest known impact events on Earth occurre...

https://en.wikipedia.org/wiki/Orosirian

#Orosirian #Paleoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Ediacaran (Geological periods 🌍)

The Ediacaran is a geological period of the Neoproterozoic Era that spans 96 million years from the end of the Cryogenian Period at 635 Mya to the beginning of the Cambrian Period at 538.8 Mya. It is the last period of the Proterozoic Eon as well as the last of the so-called "Precambrian supereon", before the beginning of the subsequent Cambrian P...

https://en.wikipedia.org/wiki/Ediacaran

#Ediacaran #Neoproterozoic #GeologicalPeriods #ProterozoicGeochronology

Ediacaran (Geological periods 🌍)

The Ediacaran is a geological period of the Neoproterozoic Era that spans 96 million years from the end of the Cryogenian Period at 635 Mya to the beginning of the Cambrian Period at 538.8 Mya. It is the last period of the Proterozoic Eon as well as the last of the so-called "Precambrian supereon", before the beginning of the subsequent Cambrian P...

https://en.wikipedia.org/wiki/Ediacaran

#Ediacaran #Neoproterozoic #GeologicalPeriods #ProterozoicGeochronology