Stream sediment

Nowel, L.H. et al. (1999) Pesticides in Stream Sediment and Aquatic Biota, CRC Press. 

Miles JRW. 1976. Insecticide residues on stream sediments in Ontario, Canada. Pestic Monit J 10 87-91. 

Degradation of [U- " C]-MTBE and [U- " C]-tert-butanol was demonstrated within 105 d in laboratory micrososms containing stream sediments from a contaminated area (Bradley et al. 1994). 

Gray JE, Theodorakos PM, Bailey EA, Turner RR. 2000. Distribution, speciation, and transport of mercury in stream-sediment, stream-water, and fish collected near abandoned mercury mines in southwestern Alaska, USA. Sci Total Environ 260 21-33. 

Marine sediments, estuarine sediments, freshwater pond sediments, harbour sediments, stream sediments, lake sediments... 

Bowman WS (1994) Stream sediment reference materials STSD-i to STSD-4. In Catalogue of Certified Reference Materials, CCRMP 94-iE. Natural Resources Canada, Ottawa. 

Surhcial stream sediments in the San Francisco estuarine system during 1972 had high residues (350 to 1400 pg/kg DW) at several locations (Phillips and Spies 1988). However, residues were highly variable between sites (Law and Goerlitz 1974). In 1984, low to intermediate concentrations of PCBs (9 to 60 pg/kg DW) were measured at four locations in the San Francisco Bay. Overall, congener profiles resembled Aroclor 1254 and were dominated by pentachlorobiphenyl isomers (NOAA 1987). The patterns of the 11 reported congeners were variable between areas, indicating many sources of different PCB mixtures. 

Ebens, R.J. and H.T. Shacklette. 1982. Geochemistry of Some Rocks, Mine Spoils, Stream Sediments, Soils, Plants, and Waters in the Western Energy Region of the Conterminous United States. U.S. Geol. Surv. Prof. Paper 1237. U.S. Govt. Printing Off., Washington, D.C. 173 pp. 

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. 

Paulen, R.C. McMarun, I. (eds) 2009. Application of till and stream sediment heavy mineral and geochemical methods to mineral exploration in western and northern Canada, Geological Association of Canada Short Course Notes 18. 

National Uranium Resource Evaluation (NURE) Hydrochemical and Stream Sediment Reconnaissance (HSSR) Program. U.S. Geological Survey Open-File Report 97-492. Available from . 

In the upper stream of the Meza River, including significant tributaries (e.g. Topla, Helenski potok, Musenik, Jazbinski potok, Juncarjev potok), the stream sediment samples were collected approximately 1 km apart. From Mezica to the Drava River the sampling distance was increased to 10 km. Additionally, two samples of the Drava River sediments were taken before and after its confluence with the Meza River (Fig. 1). 

Heavy metals in stream sediments Lead (Pb) and Zinc (Zn)... 

Seven stream sediment samples of Meza River with its tributaries (Topla, Helenski potok, Musenik, Jazbinski potok, Juncarjev potok) (ME-1, ME-5, ME-14, ME-17, ME-18, ME-20) and Drava River (ME-24), were analyzed using SEM/EDS. They contained Pb, Zn, Cr, Ni, Mn, Mo, Cd, Ti, V, W, Zr, Ce, Sb, Cu, Y, Sr, Ba, and Ag, found in different heavy metalbearing phases. 

McConnell, J.W., Finch, C., Hall, G.E.M. Davenport, P.H. 1993. Geochemical mapping employing active and overbank stream-sediment, lake sediment and lake water in two areas of Newfoundland. Journal of Geochemical Exploration, 49, 123-143. 

KEYWORDS Mercury concentrations, stream sediments, geological survey, upland/lowland delineation... 

The regional-based survey pattern of the GSC-determined Hg concentrations (ppb) in stream sediments across Canada is shown in Fig.1. Of particular interest are (i) the high Hg concentration cluster near the central north-eastern border of the Yukon Territory (Survey Zone 3), (ii) the somewhat elevated background levels in the southern portions of the Canadian Shield along the Great Lakes, (iii) the scattered pattern of similar values throughout British Columbia, Labrador and... 

Fig. 1. Outline of upland (white) / lowland (grey) delineation plus flow channels and lakes across Canada, based on the national DEM (300 m resolution), plus an overlay of the numbered regions (polyshapes with black outline) for the GSC stream-sediment Hg survey, showing Hg concentrations inside these regions, from white to dark grey.

The results for the Hg concentrations in stream sediments presented in Fig.1 and Table 1 are preliminary, with more analyses to be done, and more GSC data to be added for Quebec, Newfoundland and Nova Scotia. On the whole, the... 

The nationwide and regional pattern of Hg concentrations in stream sediments is of general interest because it establishes priority areas for further research... 

Mapping the GSC survey data for Hg concentrations in stream sediments in terms of local flow-channel and upland/lowland patterns provides a new means to evaluate these data in relation to local geologic and topographic conditions and configurations. Overlaying other geo-referenced data layers such as climate and atmospheric deposition maps including Hg deposition will reveal additional association-patterns between Hg in stream sediments and surrounding factors. 

Bolivar, S.L. 1980. An overview of the National Uranium Resource Evaluation Hydrogeochemical and Stream sediment Reconnaissance Program. Los Alamos Scientific Laboratory. LA-8457-MS, 24 p. 

KEYWORDS stream sediment, BLEG, rock chip, soil, geochemical survey, epithermal, gold, silver, Taupo Volcanic Region... 

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