Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The process of chemical and physical change in deposited sediment during its conversion to rock.
from The Century Dictionary.
- noun 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 Gümbel (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.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology All the
chemical ,physical , andbiological changessediment goes through during and afterlithification , not includingweathering or other surface changes.
Etymologies
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Examples
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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: 2009
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My interests include sedimentology, stratigraphy, and diagenesis - with an emphasis on deserts.
Archive 2008-06-01 Peggy 2008
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My interests include sedimentology, stratigraphy, and diagenesis - with an emphasis on deserts.
Blog roll update: supplemental Peggy 2008
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Or it might involve the diagenesis of organic matter into coal.
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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).
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Or it might involve the diagenesis of organic matter into coal.
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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 2005
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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 2005
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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 2005
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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 Ceiridwen J. Edwards et al. 2010
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