Cycle, biochemical sedimentation

Verity PG, Villareal TA, Smayda TJ (1988a) Ecological investigations of blooms of colonial Phaeocystis pouchetii. I. Abundance, biochemical composition, and metabolic rates. J Plankton Res 10 219-248 Verity PG, Villareal TA, Smayda TJ (1988b) Ecological investigations of blooms of colonial Phaeocystis pouchetii. II. The role of life cycle phenomena in bloom termination. J Plankton Res 10 749-766 Wassmann P (1994) Significance of sedimentation for the termination of Phaeocystis blooms. J. Mar Syst 5 81— 100... 

As a result, a physicochemical model for the formation of the BIF is proposed which is consistent with modern ideas on the evolution of sedimentation and volcanism and of the atmosphere, hydrosphere, and biosphere in the Precambrian. This model, which proposes a mainly volcanic source for the iron and silica and a biochemical and chemical mechanism of deposition, is the most likely but not the only possible one. Other versions, or different interpretations, are not ruled out, but it is perfectly obvious that in any genetic postulates, the specific physicochemical data must be taken into account. It is also quite understandable that in a work which is a first attempt at physicochemical analysis of the entire geological cycle— source of the material transport deposition diagenesis metamorphism—not all the problems have been worked out in sufficient detail and not all the evidence is conclusive far from it. Further investigations in this direction are needed, including not only determination of the role of the individual parameters in ore formation, but also direct experimental modeling of the process. 

Archer, D.E., 1996a. An atlas of the distribution of calcium carbonate in sediments of the deep sea. Global Biochemical Cycles, 10 159-174. 

Berner RA, Ruhenberg KC, Ingal ED, Rao JL (1993) The nature of phosphorous burial in modem marine sediments. In Interaction of C, N, P and S biochemical cycles and global change. Wollast R, Mackenzie FT, Chou L (eds) NATO ASI Series 14. Springer, Berlin, p 365-378 Berry EE (1967) The stracture and composition of some calcinm-deficient apatites. J Inorg Nucl Chem 29 3-18... 

Fig. 7. Colloidal organic carbon (COC) and its role in the cycling and sequestration of carbon. COC can either be transported out of surface waters by aggregation and sedimentation [24], or biochemically and photochemically transformed to less reactive low molecular weight organic carbon (LMWOC) through repeated diurnal mixing [128]. Accumulated LMWOC can then be transported to depth by seasonal (winter) mixing...

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