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authigenic

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authigenic [¦ȯ·thə¦jen·ik]
(geology)
Of constituents that came into existence with or after the formation of the rock of which they constitute a part; for example, the primary and secondary minerals of igneous rocks.
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The grain-size spectrum is influenced by authigenic minerals such as carbonates or diatom valves of diameter range 5-200 [micro]m (Round et al.
Grain-size analysis of lacustrine sediments: a comparison of ... by Vaasma, Tiit / Estonian Journal of Ecology
According to the present study, the carriers of the remanent magnetization are (i) allogenic and synsedimentary and/or early diagenetic authigenic ironbearing minerals of the primary sedimentary siliciclastic and carbonate rocks and (u) alteration products of primary minerals or new authigenic minerals formed during latediagenetic, hydrothermal, or weathering processes.
Multiply remagnetized Silurian carbonate sequence in ... by Preeden, Ulla; Plado, Juri; Mertanen, Satu; Puura, Vaino / Estonian Journal of Earth Sciences
Authigenic carbonate is common at and below the sediment-water interface (Brooks et al.
Molluscan shell condition after eight years on the sea ... by Powell, Eric N.; Callender, W. Russell; Staff, George M.; Parsons-Hubbard, Karla M.; Brett, Carlton / Journal of Shellfish Research
 
 
 
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