evolved, Earth's atmosphere had no free oxygen (O2). Small quantities of oxygen were released by geological and biological processes, but did not build...

or Great Oxygenation Event, also called the Oxygen Catastrophe, Oxygen Revolution, Oxygen Crisis or Oxygen Holocaust, was a time interval during the Early...

Geological history of oxygen Hypoxia (environmental) for O 2 depletion in aquatic ecology Ocean deoxygenation Hypoxia (medical), a lack of oxygen Limiting...

The geological history of the Earth follows the major geological events in Earth's past based on the geological time scale, a system of chronological...

relates geologic strata to time Geological history of oxygen – Timeline of the development of free oxygen in the Earth's seas and atmosphere History of Earth –...

lineages of Bacteria Biodiesel Cyanobiont Endosymbiotic theory Geological history of oxygen Hypolith Botanists restrict the name algae to protist eukaryotes...

The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological...

climate. Cycles in the ratio mirror climate changes in the geological history of Earth. Oxygen (chemical symbol O) has three naturally occurring isotopes:...

of air may refer to: Geological history of oxygen Great Oxygenation Event This disambiguation page lists articles associated with the title Origin of...

understanding of the main events of Earth's past, characterized by constant geological change and biological evolution. The geological time scale (GTS)...

of high oxygen level, however some of those large arthropod records are also known from period with relatively low oxygen, which suggest high oxygen pressure...

The geological history of North America comprises the history of geological occurrences and emergence of life in North America during the interval of time...

can convert to oxygen. The exact cause of the variation of the amount of oxygen in the atmosphere is not known. Periods with much oxygen in the atmosphere...

2006 marked the discovery of the largest dead zone in the history of Hood Canal. The dead zone may have been caused by low oxygen levels due to algal blooms...

lineages of domain Bacteria Biofertilizer Biofuel Cyanobacteria Cyanobacterial RNA thermometer Cyanobiont Cyanothece Geological history of oxygen Great Oxygenation...

appearance is sometimes referred to as the oxygen catastrophe. Geological evidence suggests that oxygenic photosynthesis, such as that in cyanobacteria...

Anoxic waters are areas of sea water, fresh water, or groundwater that are depleted of dissolved oxygen. The US Geological Survey defines anoxic groundwater...

Bacterial phyla, the other major lineages of domain Bacteria Biofertilizer Cyanobiont Geological history of oxygen Great Oxygenation Event Green algae Phytoplankton...

PMCID: PMC7125511 Clemmey, Harry; Badham, Nick (1982). "Oxygen in the Precambrian Atmosphere". Geology. 10 (3): 141–146. Bibcode:1982Geo....10..141C. doi:10...

third of the four geologic eons of Earth's history, spanning the time interval from 2500 to 538.8 Mya, the longest eon of the Earth's geologic time scale...

to have formed in sea water as the result of oxygen production by photosynthetic cyanobacteria. The oxygen combined with dissolved iron in Earth's oceans...

The organisation defines an IUGS Geological Heritage Site as "a key place with geological elements and/or processes of international scientific relevance...

In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass. However, some geologists...

Multiple historical origins of vertebrate flight also correlate temporally with geological periods of increased oxygen concentration and atmospheric...

This timeline of natural history summarizes significant geological and biological events from the formation of the Earth to the arrival of modern humans...

rover Perseverance investigating the production of oxygen on Mars. On April 20, 2021, MOXIE produced oxygen from carbon dioxide in the Martian atmosphere...

routine stir of an oxygen tank ignited damaged wire insulation inside it, causing an explosion that vented the contents of both of the SM's oxygen tanks to...

effort of imagination, and then to think of all passage of geological time in terms of this unit." Big History Chronology of the Universe Clock of the Long...

sensitivity of malignant tumor cells to ionizing radiation. As early as 1921, the German radiologist Hermann Holthusen (1886-1971) described that oxygen increases...

science") is quite different from that of Earth. The Moon lacks a true atmosphere, and the absence of free oxygen and water eliminates erosion due to weather...