Lacustrine sediments

Roulet M, Lucotte M, Canuel R, Farella N, CorrreeUes M, Guimaraes J-R, Mergler D, Amorim M. 2000. Increase in mercury contamination recorded in lacustrine sediments following deforestation in the central Amazon. Chem Geol 165 243-266. 

Vast undulating till plains occur in North America, between the Canadian shield area and the loess belt. This area is either covered with thick tills or with deglaciation sediments, lacustrine sediments in particular. The lake areas are level as such but the till landscape has a typical hummocky relief. The main characteristic of hummocky tills (40% of the total area) is the predominance of very local drainage patterns (mainly in depressions). Tills and loess have in common that they are internally uniform and that they all date back to deglaciation periods. 

Yang, H. and Huang, Y. (2003) Preservation of lipid hydrogen isotope ratios in Miocene lacustrine sediments and plant fossils at Clarkia, northern Idaho, USA. Organic Geochemistry 34, 413. 

Schutt B (2000) Holocene paleohydrology of playa lakes in northern and central Spain a reconstruction based on the mineral composition of lacustrine sediments. Quatem Int 73 1 7-27... 

Eisenreich, S.J., P.D. Capel, J.A. Robbins, and R. Bourbonnierre. 1989. Accumulation and digenesis of chlorinated hydrocarbons in lacustrine sediments. Environ. Sci. Technol. 23 1116-1126. 

Hites, R.A. and P.M. Gschwend. 1982. The ultimate fates of polycyclic aromatic hydrocarbons in marine and lacustrine sediments. Pages 357-365 in M. Cooke, A.J. Dennis, and F.L. Fisher (eds.). Polynuclear Aromatic Hydrocarbons Physical and Biological Chemistry. Battelle Press, Columbus, OH. 

Aggett, J. and G.A. O Brien. 1985. Detailed model for the mobility of arsenic in lacustrine sediments based on measurements in Lake Ohakuri. Environ. Sci. Technol. 19 231-238. 

Wakeham [14] has discussed the application of synchronous fluorescence spectroscopy to the characterization of indigenous and petroleum derived hydrocarbons in lacustrine sediments. The author reports a comparison, using standard oils, of conventional fluorescence emission spectra and spectra produced by synchronously scanning both excitation and emission monochromators. 

Saber et al. [75] reported on the quantitative determination of polyaromatic hydrocarbons in extracts of lacustrine sediments using high resolution Shpol skii Spectrofluorimetry at 10°K. 

Dreier et al. [44] determined sterols in lacustrine sediments. Samples of wet lacustrine sediments were heated under anoxic conditions at 150, 175, 200 and 250°C for five days at 175°C for five days with influx of potassium hydroxide and methanol to remove sterols and at 175°C for 12, 18, 24 and 48h, after which extraction was performed. Heating the sediment increased the amounts of extractable sterols provided that the temperature did not exceed 200°C, because degradation became rapid above that temperature. The behaviour of sterol ketones was similar, but the temperature limit was slightly higher. The various levels of the sterols extracted are tabulated 4-methylsterols had a high stability towards thermal degradation under the conditions used. 

With hydraulic residence times ranging from months to years, lakes are efficient settling basins for particles. Lacustrine sediments are sinks for nutrients and for pollutants such as heavy metals and synthetic organic compounds that associate with settling particles. Natural aggregation (coagulation) increases particle sizes and thus particle settling velocities (Eq. 7.1) and accelerates particle removal to the bottom sediments and decreases particle concentrations in the water column. 

Anselmetti FS, Biihler R, Finger D, Girardclos S, Lancini A, Rellstab C, Sturm M (2007) Effects of alpine hydropower dams on particle transport and lacustrine sedimentation. Aquat Sci 69 179-198... 

J. Colloid Interface Sci. 150 453—460 Belzde, N. Tessier, A. (1990) Interactions between arsenic and iron oxyhydroxides in lacustrine sediments. Geochim. Cosmochim. 

Gschwend, P. M., and R. A. Hites, Fluxes of polycyclic aromatic hydrocarbons to marine and lacustrine sediments in the Northeastern United States , Geochim. Cosmochim. Acta, 45,2359-2367 (1981). 

Southern Carson Desert, Nevada, USA up to 2600 Holocene mixed aeolian, alluvial, lacustrine sediments, some thin volcanic ash beds Largely reducing, some high pH. Some with high salinity due to evaporation. Associated with high U, P, Mn, DOC, and Fe to a lesser extent ... 

Ma, Xia and Wu, 1999). The contamination in this area extends over 6000 km2 and is mostly found in 10- to 35-m deep tube wells that tap Quaternary lacustrine sediments (Smedley, 2005). 

Seki, Y. (2000) Hydrothermal alteration of the Sunagohara formation in the Okuaizu geothermal area, Japan alteration of lacustrine sediments formed by the present geothermal activity. Bulletin of the Geological Survey of Japan, 51(8), 329-67. 

Holocene alluvial plain Holocene alluvial/lacustrine sediments... 

The amount of reduced sulfur in freshwater lacustrine sediment and in most marine sediment is a function of the availability of the limiting reactant during sulfate reduction—whether sulfate or organic matter. This simple two end-member model must frequently be modified for saline lacustrine sediment and for some marine sediment in order to reflect the capacity of the... 

Characterization of Organic Matter in Sulfur-Rich Lacustrine Sediments of Miocene Age (Nordlinger Ries, Southern Germany)... 

Organic Matter in Sulfur-Rich Lacustrine Sediments 153... 

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