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countable and uncountable, plural biosediments
Sediment composed of or containing organic material. quotations examples
This type of biosediment constitutes the oldest morphological evidence of life which can be traced back over 3.5 billion years of earth history.
1985, Nature and Resources - Volumes 21-22, page 12
Bennett et al. (1991) indicated that biosediment aggregates composed of detrital clay and organic mucus ("marine snow") may be one of the mechanisms for the rapid sedimentation of clay floccules.
1998, Jürgen Schieber, Winfried Zimmerle, Parvinder S. Sethi, Shales and mudstones, page 61
The increased size of biosediments probably initiated the process of biosediment oxidation.
1998, Russian Journal of Marine Biology - Volume 24, page 55
The material deposited as biosediment is important part of biogeochemistry of aquatic ecosystems.
2006, Richard F. Dame, Sergej Olenin, The Comparative Roles of Suspension-Feeders in Ecosystems