Definitions for authigenic
au·thi·genic

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1. authigenicadjective

   In the rock; refers to minerals within sedimentary layers. Generated where it is found or observed.

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1. authigenic

   Authigenesis is the process whereby a mineral or sedimentary rock deposit is generated where it is found or observed. Such deposits are described as authigenic. Authigenic sedimentary minerals form during sedimentation by precipitation or recrystallization instead of being transported from elsewhere (allogenic) by water or wind. Authigenic sediments are the main constituents of deep sea sedimentation. Authigenic clays tend to reduce the porosity of sediments, thus reducing permeability. In metamorphic petrology an authigenic mineral is one formed in situ during metamorphism, again by precipitation from fluids or recrystallization. For any mineral to be precipitated, the water must be supersaturated with respect to that mineral. For calcite, this means that the area of deposition must be above the carbonate compensation depth, or that the pore waters are sufficiently saturated due to dissolution of other grains that precipitation can begin. The alkalinity can also be reduced by microbial sulfate reduction.

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1. Authigenic

   An authigenic mineral or sedimentary rock deposit is one that was generated where it is found or observed. Authigenic sedimentary minerals form during sedimentation by precipitation or recrystallization instead of being transported from elsewhere by water or wind. Authigenic sediments are the main constituents of deep sea sedimentation. Authigenic clays tend to reduce the porosity of sediments, thus reducing permeability. Common sedimentary authigenic minerals include calcium carbonate, apatite, and clays. In metamorphic petrology an authigenic mineral is one formed in situ during metamorphism, again by precipitation from fluids or recrystalisation. For any mineral to be precipitated, the water must be oversaturated with respect to that mineral. For calcite, this means that the area of deposition must be above the carbonate compensation depth, or that the pore waters are sufficiently saturated due to dissolution of other grains that precipitation can begin. The alkalinity can also be reduced by microbial sulphate reduction.

How to pronounce authigenic?

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Numerology

1. Chaldean Numerology

   The numerical value of authigenic in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of authigenic in Pythagorean Numerology is: 7

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Authigenic
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Authigenic
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=authigenic