Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The process of chemical and physical change in deposited sediment during its conversion to rock.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. All the chemical, physical, and biological changes sediment goes through during and after lithification, not including weathering or other surface changes.

from The Century Dictionary and Cyclopedia

  • n. In geology, the action of heated waters upon clastic sediments at the time of their deposition, assumed to explain the origin of crystalline schists: proposed by G├╝mbel (1888); employed by Walther to embrace those physical and chemical modifications which take place in a sediment from the time of its deposition to the time when it is modified by orogenic or volcanic forces, when it undergoes metamorphism.

Etymologies

Sorry, no etymologies found.

Examples

  • The book Diagenesis in Sediments was published in 1967, almost a hundred years after introduction of the term "diagenesis" in eological literature, i.e., in 1868, in Von Guembel's major work Geognostische Beschreibung des ostbayerischen Grenzge birges.

    AvaxHome RSS:

  • My interests include sedimentology, stratigraphy, and diagenesis - with an emphasis on deserts.

    Archive 2008-06-01

  • Examples include inefficient fat transfers in aquatic food webs (i.e., biomagnification) [10], the loss of organic carbon in settling particles or during sediment diagenesis [11], the decrease of snow surface area as crystals become more compact during aging or the entire loss of snow surface during melting [12], or cryogenic concentration during the formation of ice [13] (Fig. 8.23).

    Global change and contaminants in the Arctic

  • Or it might involve the diagenesis of organic matter into coal.

    Environmental chemistry collection

  • We use a model of ocean and sediment geochemistry, which includes new developments of iron limitation of biological production at the sea surface and anoxic diagenesis and its effect on CaCO3 preservation in the sediments, to evaluate the current proposals for explaining the glacial/interglacial pCO2 cycles within the context of the ocean carbon cycle.

    Ice Age CO2 Cycles: Archer et al [2000] « Climate Audit

  • The model incorporates a new sedimentary diagenesis component which simulates the role of CaCO3 compensation in determining atmospheric pCO2, and a new iron cycle component, which predicts the effect of atmospheric iron deposition on carbon uptake by photosynthesis.

    Ice Age CO2 Cycles: Archer et al [2000] « Climate Audit

  • Changes in biological production and water chemistry affect the diagenesis and burial of CaCO3, and hence pCO2.

    Ice Age CO2 Cycles: Archer et al [2000] « Climate Audit

  • The sequence errors observed are therefore not reflective of DNA diagenesis in the CPC98 but are most likely artefacts of the sequencing method used.

    PLoS ONE Alerts: New Articles

  • Espinoza said that with the increase of unconventional shale and tight sand development, there is a growing need for proppants with the fractional toughness of a lightweight ceramic and the diagenesis resistance of resin-coated sand.

    D Mag - News

  • Schrag, D.P. (1999) Effects of diagenesis on isotopic record of late Paleogene equatorial sea surface temperatures.

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