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Canfield ocean, the Glossary

Index Canfield ocean

The Canfield Ocean model was proposed by geochemist Donald Canfield to explain the composition of the ocean in the middle to late Proterozoic.[1]

Table of Contents

  1. 22 relations: Anoxic event, Banded iron formation, Boring Billion, Copper, Donald Canfield, Euxinia, Geochemistry, Great Oxidation Event, Hydrogen sulfide, Hypoxia (environmental), Δ34S, Molybdenum, Nature (journal), Primary production, Proterozoic, Pyrite, Runoff (hydrology), Stable isotope ratio, Sulfate, Sulfate-reducing microorganism, Sulfide, Weathering.

  2. Geology theories
  3. Proterozoic

Anoxic event

An anoxic event describes a period wherein large expanses of Earth's oceans were depleted of dissolved oxygen (O2), creating toxic, euxinic (anoxic and sulfidic) waters. Canfield ocean and anoxic event are Oceanography.

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Banded iron formation

Banded iron formations (BIFs; also called banded ironstone formations) are distinctive units of sedimentary rock consisting of alternating layers of iron oxides and iron-poor chert.

See Canfield ocean and Banded iron formation

Boring Billion

The Boring Billion, otherwise known as the Mid Proterozoic and Earth's Middle Ages, is an informal geological time period between 1.8 and 0.8 billion years ago (Ga) during the middle Proterozoic eon spanning from the Statherian to the Tonian periods, characterized by more or less tectonic stability, climatic stasis and slow biological evolution. Canfield ocean and Boring Billion are Proterozoic.

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Copper

Copper is a chemical element; it has symbol Cu and atomic number 29.

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Donald Canfield

Donald Eugene Canfield (born 1957) is a geochemist and Professor of Ecology at the University of Southern Denmark known for his work on the evolution of Earth's atmosphere and oceans.

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Euxinia

Euxinia or euxinic conditions occur when water is both anoxic and sulfidic. Canfield ocean and euxinia are Oceanography.

See Canfield ocean and Euxinia

Geochemistry

Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans.

See Canfield ocean and Geochemistry

Great Oxidation Event

The Great Oxidation Event (GOE) or Great Oxygenation Event, also called the Oxygen Catastrophe, Oxygen Revolution, Oxygen Crisis or Oxygen Holocaust, was a time interval during the Earth's Paleoproterozoic era when the Earth's atmosphere and shallow seas first experienced a rise in the concentration of free oxygen.

See Canfield ocean and Great Oxidation Event

Hydrogen sulfide

Hydrogen sulfide is a chemical compound with the formula.

See Canfield ocean and Hydrogen sulfide

Hypoxia (environmental)

Hypoxia (hypo: "below", oxia: "oxygenated") refers to low oxygen conditions.

See Canfield ocean and Hypoxia (environmental)

Δ34S

The δ34S (pronounced delta 34 S) value is a standardized method for reporting measurements of the ratio of two stable isotopes of sulfur, 34S:32S, in a sample against the equivalent ratio in a known reference standard.

See Canfield ocean and Δ34S

Molybdenum

Molybdenum is a chemical element; it has symbol Mo (from Neo-Latin molybdaenum) and atomic number 42.

See Canfield ocean and Molybdenum

Nature (journal)

Nature is a British weekly scientific journal founded and based in London, England.

See Canfield ocean and Nature (journal)

Primary production

In ecology, primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide.

See Canfield ocean and Primary production

Proterozoic

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

See Canfield ocean and Proterozoic

Pyrite

The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron (II) disulfide).

See Canfield ocean and Pyrite

Runoff (hydrology)

Runoff is the flow of water across the earth, and is a major component in the hydrological cycle.

See Canfield ocean and Runoff (hydrology)

Stable isotope ratio

The term stable isotope has a meaning similar to stable nuclide, but is preferably used when speaking of nuclides of a specific element.

See Canfield ocean and Stable isotope ratio

Sulfate

The sulfate or sulphate ion is a polyatomic anion with the empirical formula.

See Canfield ocean and Sulfate

Sulfate-reducing microorganism

Sulfate-reducing microorganisms (SRM) or sulfate-reducing prokaryotes (SRP) are a group composed of sulfate-reducing bacteria (SRB) and sulfate-reducing archaea (SRA), both of which can perform anaerobic respiration utilizing sulfate as terminal electron acceptor, reducing it to hydrogen sulfide (H2S).

See Canfield ocean and Sulfate-reducing microorganism

Sulfide

Sulfide (also sulphide in British English) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions.

See Canfield ocean and Sulfide

Weathering

Weathering is the deterioration of rocks, soils and minerals (as well as wood and artificial materials) through contact with water, atmospheric gases, sunlight, and biological organisms.

See Canfield ocean and Weathering

See also

Geology theories

Proterozoic

References

[1] https://en.wikipedia.org/wiki/Canfield_ocean