Sedimentary cycle

Bertine, K. K. and Goldberg, E. D. (1971). Fossil fuel combustion and the major sedimentary cycle. Science 173,233-235. 

Wakeham, S.G., and C. Lee. 1989. Organic geochemistry of particulate matter in the ocean The role of particles in oceanic sedimentary cycles. Organic Geochemistry 14 83-96. 

RonovAB, Migdisov AA, Voskresenskaya NT, KorzinaGA(1970) Geochemistry of lithium in the sedimentary cycle. Geochem Int 7 75-102... 

SIEVER (R.), 1957. The silica budget in the sedimentary cycle. Amer. 

Formation in the Sedimentary Cycle, Geochim. Cosmochim. Acta (1966) 30, 1111. 

Some of the high Fe values may be real. During weathering under neutral to acid conditions, the Mg-rich brucite sheet tends to be stripped out and removed from the immediate environment. If new material is precipitated between the talc layers, it is more apt to be Fe and Al than Mg. As chlorites go through the sedimentary cycle, perhaps several times, their average Fe and Al content will tend to increase. 

To begin the discussion, we will present briefly a view of the modern carbon cycle, with emphasis on processes, fluxes, reservoirs, and the "CO2 problem". In Chapter 4 we introduced this "problem" here it is developed further. We will then investigate the rock cycle and the sedimentary cycles of those elements most intimately involved with carbon. Weathering processes and source minerals, basalt-seawater reactions, and present-day sinks and oceanic balances of Ca, Mg, and C will be emphasized. The modern cycles of organic carbon, phosphorus, nitrogen, sulfur, and strontium are presented, and in Chapter 10 linked to those of Ca, Mg, and inorganic C. In conclusion in Chapter 10, aspects of the historical geochemistry of the carbon cycle are discussed, and tied to the evolution of Earth s surface environment. 

Mackenzie F.T. (1975) Sedimentary cycling and the evolution of seawater. In Chemical Oceanography, 2nd edition, Volume 1 (eds. J.P. Riley and G. Skirrow), pp. 309-364. Academic Press, London. 

Sedimentary geochemistry. The aqueous phase dominates weathering, leaching, transportation, and precipitation processes in the sedimentary cycle. The behaviour of transition metal ions to chemical attack depends on the relative stabilities of hydrated and complex ions in solution and bonded cations in crystal structures. The break-down of minerals and leaching of ions takes place through substitution reactions, which depend on kinetic and mechanistic fac-... 

Burdige, D.J., and Martens, C.S. (1990) Biogeochemical cycling in an organic-rich coastal marine basin 11. The sedimentary cycling of dissolved, free amino acids. Geochim. Cosmochim. Acta 54, 3033-3052. 

Trendall (1973b) mentions that the very old iron-formations of the Yilgarn and Pilbara Blocks in Western Australia were deposited between successive sedimentary cycles, each of which began with thick volcanic (effusive and... 

Button (1976) considers the BIF of the Transvaal Supergroup, South Africa, to be the final member of a carbonate sedimentary cycle, when anomalous concentrations of iron, silica, and other elements were produced in restricted basins. 

Button, A., 1976. Iron-formation as an end member in carbonate sedimentary cycles in the Transvaal supergroup. South Africa. Econ. Geol, 71 193-201. 

Threonine and allothreonine are thermally unstable amino acids. The same is true for the simplest hydroxy amino add, (S)-serine (39). High levels of this amino add have however been reported from certain petroleum brine waters and its preservation may be due to the formation of stable chelates. Ahrens has suggested that metal-amino acid chelates may be important in the sedimentary cycle, and the uptake of certain metals in sediments, particularly in binding of metal-amino acid chelates to clays, has been proposed as a possible mechanism for the incorporation of metal ions in carbonaceous materials. Similar complexes are thought to contribute to the stabilization of amino acids in coals, lignites and peats, but, as has been outlined in a previous section, many other ligands are also present in these media, and their relative importance is difScult to assess. Much of this work is unfortunately of a speculative nature since no well-characterized complex of an amino acid has been isolated from a geological source, as far as the author is aware. 

Baturin, G.N., 1973a. Uranium in the modern marine sedimentary cycle. Geochem. Int., 10 1031—1041. 

Table 12-8. Global Fluxes and Atmospheric Residence Times of Nitrogen Associated with Biological Nitrogen Fixation, Inorganic Atmospheric Oxidation, Agricultural Fertilizer Production, Combustion Process, and the Sedimentary Cycle...

Derry LA, Kaufman AJ, Jacobsen SB (1992) Sedimentary cycling and environmental change in the Late Proterozoic Evidence from stable and radiogenic isotopes. Geochim Cosmochim Acta 56 1317-1329 Des Marais DJ (1985) Carbon exchange between the mantle and cmst and its effect upon the atmosphere today compared to Archean time. In Sundquist ET, Broecker WS (eds) The Carbon Cycle and Atmospheric CO2 Natural Variations Archean to Present. American Geophysical Union, Washington, DC, p 602-611... 

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