Post‐Great Oxidation Event Orosirian–Statherian iron formations on the São Francisco craton: Geotectonic implications

Island Arc ◽  
2019 ◽  
Vol 28 (4) ◽  
Author(s):  
Carlos A. Rosière ◽  
Andrey Bekker ◽  
Vassily K. Rolim ◽  
João Orestes S. Santos
Keyword(s):  
Great Oxidation Event ◽  
Iron Formations

scholarly journals A New Depositional Framework for Massive Iron Formations after The Great Oxidation Event

2020 ◽  
Author(s):  
Athena Eyster ◽  
Latisha Brengman ◽  
Claire Isobel O'Bryen Nichols ◽  
Zoe Levitt ◽  
Kristin D Bergmann
Keyword(s):  
Great Oxidation Event ◽  
Iron Formations

scholarly journals A New Depositional Framework for Massive Iron Formations after the Great Oxidation Event

2021 ◽  
Author(s):  
Athena Eyster ◽  
Latisha Brengman ◽  
Claire I. O. Nichols ◽  
Zoe Levitt ◽  
Julia Wilcots ◽  
...  
Keyword(s):  
Great Oxidation Event ◽  
Iron Formations

Earth’s Middle Ages: What Came after the GOE

2017 ◽  
Author(s):  
Donald Eugene Canfield
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Middle Ages ◽  
Atmospheric Oxygen ◽  
Iron Formation ◽  
Banded Iron Formation ◽  
Dissolved Iron ◽  
Great Oxidation Event ◽  
Low Levels ◽  
Substantial Rise

This chapter considers the aftermath of the great oxidation event (GOE). It suggests that there was a substantial rise in oxygen defining the GOE, which may, in turn have led to the Lomagundi isotope excursion, which was associated with high rates of organic matter burial and perhaps even higher concentrations of oxygen. This excursion was soon followed by a crash in oxygen to very low levels and a return to banded iron formation deposition. When the massive amounts of organic carbon buried during the excursion were brought into the weathering environment, they would have represented a huge oxygen sink, drawing down levels of atmospheric oxygen. There appeared to be a veritable seesaw in oxygen concentrations, apparently triggered initially by the GOE. The GOE did not produce enough oxygen to oxygenate the oceans. Dissolved iron was removed from the oceans not by reaction with oxygen but rather by reaction with sulfide. Thus, the deep oceans remained anoxic and became rich in sulfide, instead of becoming well oxygenated.

BRAZILIAN IRON FORMATIONS AND THEIR GEOLOGICAL SETTING

2000 ◽  
Vol 30 (2) ◽  
pp. 274-278 ◽  
Author(s):  
CARLOS ALBERTO ROSIÈRE ◽  
FARID CHEMALE JR
Keyword(s):  
Geological Setting ◽  
Iron Formations

PALEOGEOGRAPHIC CONSTRAINTS FROM THE KAAPVAAL CRATON (SOUTH AFRICA) IN THE IMMEDIATE AFTERMATH OF THE GREAT OXIDATION EVENT

2020 ◽  
Author(s):  
Sarah Slotznick ◽  
◽  
David A.D. Evans ◽  
Francis Sousa ◽  
Nicholas L. Swanson-Hysell
Keyword(s):  
South Africa ◽  
Kaapvaal Craton ◽  
Great Oxidation Event

THE ROLE OF SILICA IN IRON FORMATIONS: TEXTURAL, MINERALOGICAL, AND GEOCHEMICAL COMPARISONS FROM LOW METAMORPHIC GRADE NEOARCHEAN AND PALEOPROTEROZOIC EXAMPLES

2020 ◽  
Author(s):  
Latisha Ashley Brengman ◽  
◽  
Esther K. Stewart ◽  
Danielle Stolze ◽  
Emily Faust ◽  
...  
Keyword(s):  
Metamorphic Grade ◽  
Iron Formations

THE TECTONIC CONTEXT FOR THE GOGEBIC RANGE IRON FORMATIONS

2020 ◽  
Author(s):  
Athena Eyster ◽  
◽  
Latisha Ashley Brengman ◽  
Claire Nichols ◽  
Zoe Levitt ◽  
...  
Keyword(s):  
Iron Formations
Sign in / Sign up

Export Citation Format

Share Document