Sediment geochemistry

Rebata-Landa V, Santamarina JC (2006) Mechanical limits to microbial activity in deep sediments. Geochemistry Geophysics Geosystems 7 Art. No. Q 11006... 

Ali, K., Cheng, Q., Li, W. Chen, Y. 2006. Multi-element association analysis of stream sediment geochemistry data for predicting gold deposits in south-central Yunnan Province, China. Geochemistry.Expioration, Environment, Analysis, 6, 341-348. 

Keywords Overbank sediment, geochemistry, mineral exploration, MMI, Thomson Orogen... 

A number of sites with anomalous catchment outlet sediment geochemistry are associated with catchments containing known outcropping mineral occurrences, confirming the value of the approach. 

Not all catchments with known mineral occurrences have anomalous catchment outlet sediment geochemistry. 

Warnes, P.N. Christie, A.B. 1995. Regional stream sediment geochemistry database (REGCHEM) for selected regions of New Zealand. The Australasian Institute of Mining and Metallurgy Publication Series, 9/95, 611-616. 

KEYWORDS Lake Sediment, Geochemistry,Sudbury Igneous Complex, GIS, OGSEarth... 

The close association of the lake sediment geochemistry with SIC rocks and Ni mineralization indicates that the OGS protocol of sampling a discrete depth interval of deeper sediments is successful in obtaining relatively undisturbed and uncontaminated sediments in the vast majority of cases. 

Exploration stream sediment geochemistry of the Otago region, New... 

Hoffman, S.J. and Fletcher, W.K. (1981) Detailed lake sediment geochemistry of anomalous lakes on the Nechako plateau, Central Columbia comparison of trace metal distributions in Capoose and Fish lakes./ Geochem. Explor. 14, 221-244. 

Approaches for calculating activity coefficients will be discussed later in this chapter. Three important concepts are introduced here. The first is that in dilute solutions the activity coefficient approaches 1 as the concentration of all electrolytes approaches zero. The second is that the activity coefficient must be calculated on the same scale (e.g., molality, molarity, etc.) as that used to express concentration. The third is that activity in the gas phase is expressed as fugacity. Because the fugacity coefficient for CO2 is greater than 0.999 under all but the most extreme conditions for sediment geochemistry (e.g., deep subsurface), the partial pressure of CO2 (Pc02 may reasonably used in the place of fugacity. 

G. Millot, Geology of Clays Weathering, Sedimentation, Geochemistry, Springer, New York, 1970. 

Glasby, G.P. (ed.) (1978) Sedimentation and sediment geochemistry of Caswell, Nancy and Milford Sounds, New Zealand. Mem. N.Z. Oceaogr. Inst. 79, 7-9. 

Mitra, S., Dellapenna, T.M., and Dickhut, R.M. (1999a) Polycyclic aromatic hydrocarbon distribution within lower Hudson River estuarine sediments physical mixing vs. sediment geochemistry. Estuar. Coastal Shelf Sci. 49, 311-326. 

In glaciated areas, the stream is usually disconnected from the bedrock by till and the stream sediments may thus only reflect the variation of element contents in till. The interpretation of results for prospecting purposes becomes complicated. However, in till-covered mountainous areas such as Scodand (Plant et al, 1984) and Norway (Wennervirta et al., 1971), useful results were obtained by stream sediment geochemistry. 

Lima, A., Albanese, S., and Cicchella, D. (2005). Geochemical baselines for the radioelements K, U, and Th in the Campania region, Italy A comparison of stream-sediment geochemistry and gamma-ray surveys. Appl. Geochem. 20, 611—625. 

Johnson M. C. and Plank T. (1999) Dehydration and melting experiments constrain the fate of subducted sediments. Geochemistry, Geophysics, Geosystems 1, 1999GC000014, 29p. 

Heron G., Bjerg P. L., Gravesen P., Ludvigsen L., and Christensen T. H. (1998) Geology and sediment geochemistry of a landfill leachate contaminated aquifer (Grindsted, Denmark). J. Contamin. Hydrol. 29, 301-317. 

This chapter focuses on the environmental implications of sediments mobilized in response to rain events. Three different aspects are discussed the role of suspended sediment in bacterial transport, temporal changes in sediment geochemistry, and... 

Figure 1.1. Natural water environments of interest in aquatic chemistry. Water links elemental cycles of the atmosphere with those of the sediments. Atmospheric chemistry, water chemistry, sediment geochemistry, soil chemistry, and groundwater chemistry of the elements are needed.

Volkov, 1.1, and Ostroumov, E.A., 1957. The form of sulphur compounds in the interstitial waters of Black Sea bottom sediments. Geochemistry, 4 397—406. 

Steven Emerson is Professor of Oceanography at the University of Washington, specializing in inorganic geochemistry. He is a Fellow of the American Geophysical Union and has worked on both air-sea interaction and sediment geochemistry. 

Jorgensen, B. B. and Nelson, D.C, 2004. Sulfide oxidation in marine sediments Geochemistry meets microbiology. In Amend, J.P., Edwards, K.J. and Lyons, T.W. (eds). Sulfur Biogeochemistry - Past and Present. Geological Society of America, pp. 63-... 

Soetaert, K., Vanaverbeke, J., Heip, C., Herman, P.M.J., Middelburg, J.J., Sandee, A. and Duineveld, G, 1997. Nematode distribution in ocean margin sediments of the Goban Spur (northeast Atlantic) in relation to sediment geochemistry. Deep-Sea Res. I, 44, 1671-1683. 

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