Marine sediment grain size

Szava-Kovats, R.C. 2008. Grain-size normalization as a tool to assess contanination in marine sediments Is the <63 pm fraction fine enough Marine Pollution Bulletin, 56, 629-632. 

Grain-size distribution in common marine sediments and in various sediment sources. Source From Gross, M. G. (1987). Oceanography A View of the Earth, 4th ed. Prentice Haii, inc., p. 81. 

The distribution pattern of heavy metals in surface marine sediments is regulated not only by their concentrations, but also by their physical-chemical characteristics, mineralogical composition, grain size distribution, organic matter contents, etc. Several environmental conditions such as marine currents, wind, and continental runoff must also be considered (38). Some data on trace metals in Antarctic sediments have been published, but the information available for Potter Cove is limited (27, 39- 2). 

As yet, there is no general classification scheme applicable to marine sediments that combines all the essential characteristics pertaining to a sediment. A large number of different schemes has been proposed in the literature which focus either on origin, grain-size distribution, chemical and mineralogical features of the sediment components, or the facial development of the sediments - all depending on the specific problem under... 

Acoustic and elastic properties are directly concerned with seismic wave propagation in marine sediments. They encompass P- and S-wave velocity and attenuation and elastic moduli of the sediment frame and wet sediment. The most important parameter which controls size and resolution of sedimentary structures by seismic studies is the frequency content of the source signal. If the dominant frequency and bandwidth are high, fine-scale structures associated with pore space and grain size distribution affect the elastic wave propagation. This is subject of ultrasonic transmission measurements on sediment cores (Sects. 2.4 and 2.5). At lower frequencies larger scale features like interfaces with different physical properties above and below and bed-forms like mud waves, erosion zones and ehatmel levee systems are the dominant structures imaged... 

Vanderaveroet P, Averbuch O, Deconinck JF, and Chamley H (1999) A record of glacial/interglacial alternations in Pleistocene sediments off New Jersey expressed by clay mineral, grain-size and magnetic susceptibility data. Marine Geology 159 79-92. 

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