Definitions
from The Century Dictionary.
- Originating where found: applied to the minerals of an igneous or metamorphic rock which have crystallized in place, as contrasted with the fragments of preëxisting rocks which form the sediments. Also
authigenetic and authigenous.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective geology Generated where it is found or observed.
Etymologies
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Examples
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The plan for Alvin Dive 4636 was ambitious: deploy four experiments and collect eight authigenic carbonates, four Niskin bottles of water, 24 tube cores of seep sediment, one scoop of clams, and two "slurps" of microbial mat.
NYT > Home Page By JEFFREY MARLOW 2010
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