Abstract
Purpose
The geochemical compositions of sediments from three sectors in Trincomalee Bay (Koddiyar Bay, Thambalagam Bay and the Inner Harbour) in Sri Lanka were examined to determine fluvial and marine contributions and the effects of sorting and heavy mineral concentration. The present environmental status of the bay was also assessed.
Materials and methods
Forty-nine sediment samples were collected from Trincomalee Bay and analysed by X-ray fluorescence, yielding data for the major elements and 17 trace elements. Mean grain size and sorting were also measured. Data were compared with the compositions of sediments from the lower Mahaweli River, which supplies most of the clastic detritus to Trincomalee Bay.
Results and discussion
Sediments in the three sectors differ significantly in chemical composition, according to position relative to the Mahaweli River delta source, depositional environment, heavy mineral concentration and marine influences. According to accepted sediment quality guidelines, some As contamination may have occurred in the Inner Harbour and Thambalagam Bay and Cr contamination in all three sectors.
Conclusions
Proximal Koddiyar Bay sediments compare closely with Mahaweli River bedload. Although the clastic component in the more distal Thambalagam Bay and the Inner Harbour is also derived from the Mahaweli River, compositions are modified significantly by marine contributions. High concentrations of elements including Ti, Zr, Ce, Nb and Y in NW Koddiyar Bay are consistent with heavy mineral concentration by winnowing in high-energy zones. Some decoupling of Fe–Ti- and Zr-bearing heavy mineral assemblages may occur within the bay. Al-normalized metal enrichment factors and contour maps show that apparent contamination by As and Cr is spurious and is caused by locally high background levels from Mahaweli River detritus. This illustrates the importance of establishing local background levels of elements during environmental studies.
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References
Borrego J, Morales JA, De La Torre ML, Grande JA (2002) Geochemical characteristics of heavy metal pollution in surface sediments of the Tinto and Odiel river estuary (southwestern Spain). Environ Geol 41:785–796
Chen CT, Kandasamy S (2007) Evaluation of elemental enrichments in surface sediments off southwestern Taiwan. Environ Geol 54:1333–1346
Cooray PG (1994) The Precambrian of Sri Lanka, a historical overview. Precambrian Res 66:3–18
Cullers R (1988) Mineralogical and chemical changes of soil and stream sediment formed by intense weathering of the Danburg granite, Georgia, U.S.A. Lithosphere 21:301–314
Daskalakis KD, O’Connor TP (1995) Distribution of chemical concentrations in US coastal and estuarine sediment. Mar Environ Res 40:381–398
Dellwig O, Hinrichs J, Hild A, Brumsack HJ (2000) Changing sedimentation in tidal flat sediments of the southern North Sea from the Holocene to the present: a geochemical approach. J Sea Res 44:195–208
Folk RL, Ward WC (1957) Brazos river bar: a study of significance of grain size parameters. J Sed Petrol 27:3–26
Garcia D, Fonteilles M, Moutte J (1994) Sedimentary fractionations between Al, Ti and Zr and the genesis of strongly peraluminous granites. J Geol 102:411–422
Garcia D, Ravenne C, Marechal B, Moutte J (2004) Geochemical variability induced by entrainment sorting: quantified signals for provenance analysis. Sed Geol 171:113–128
Graney JR, Eriksen TM (2004) Metals in pond sediments as archives of anthropogenic activities: a study in response to health concerns. Appl Geochem 19:1177–1188
Hirst DM (1962) The geochemistry of modern sediments from the Gulf of Paria, II. The location and distribution of trace elements. Geochim Cosmochim Acta 26:1147–1187
Ho HH, Swennen R, Damme AV (2010) Distribution and contamination status of heavy metals in estuarine sediments near Cua Ong harbor, Ha Long bay, Vietnam. Geol Belg 2:37–47
Ip CCM, Li XD, Zhang G, Wai OWH, Li YS (2007) Trace metal distribution in sediments of the Pearl River Estuary and the surrounding coastal area, South China. Environ Pollut 147:311–323
Jayawardena UDS (2005) The stratigraphy and groundwater availability in the delta sediments of river Mahawelli—a study from Sri Lanka. Abstract Volume of the Inter Conf on DELTAS (Mekong venue). January 10–16. Ho Chi Minh City, Vietnam. p40
Karageorgis AP, Katsanevakis S, Kaberi H (2009) Use of enrichment factors for the assessment of heavy metal contamination in the sediments of Koumoundourou Lake, Greece. Water Air Soil Pollut 204:243–258
Kimura J, Yamada Y (1996) Evaluation of major and trace element XRF analyses using a flux to sample ratio of two to one glass beads. J Min Pet Sci 91:62–72
Ladipo MK, Ajibola VO, Oniye SJ, Uzairu A, Agbaji EB (2011) Geochemical partitioning of heavy metals in sediments of some locations of the Lagos lagoon. Jenvscs 1:22–30
Li X, Liu L, Wang Y, Luo G, Chen X, Yang X, Gao B, He X (2012) Integrated assessment of heavy metal contamination in sediments from a coastal industrial basin, NE China. PLoS ONE 7(6):e39690. doi:10.1371/journal.pone.0039690
Lin C, He M, Zhou Y, Guo W, Yang Z (2007) Distribution and contamination assessment of heavy metals in sediment of the Second Songhua River, China. Environ Monit Assess 137:329–342
Long ER, Morgan LG (1990) The potential for biological effects of sediment-sorbed contaminants tested in the National States and Trends Program. National Oceanic Atmospheric Administration (NOAA) Technical Memorandum No. 5, OMA52, NOAA National Ocean Service, Seattle, Washington, USA
McLennan SM, Hemmings S, McDaniel DK, Hanson GN (1993) Geochemical approaches to sedimentation, provenance and tectonics. Geol Soc Am Spec Pap 284:21–40
Morris AW, Allen JI, Howland RJM, Wood RG (1995) The estuary plume zone: source or sink for land-derived nutrient discharges? Estuar Coast Shelf Sci 40:387–402
NYSDEC (New York State Department of Environmental Conservation) (1999) Technical guidance for screening contaminated sediments. NYSDEC, Division of Fish, Wildlife and Marine Resources, Albany, p 45
Ogasawara M (1987) Trace element analysis of rock samples by X-ray fluorescence spectrometry, using Rh anode tube. Bull Geol Surv Jpn 38(2):57–68
Pattan JN, Rao CM, Higgs NC, Colley S, Parthiban G (1995) Distribution of major, trace and rare-earth elements in surface sediments of the Wharton Basin, Indian Ocean. Chem Geol 121:201–215
Persaud D, Jaagumagi R, Hayton A (1992) Guidelines for the protection and management of aquatic sediment quality in Ontario. Ontario Ministry of the Environment, Ottawa
Reid MK, Spencer KL (2009) Use of principal components analysis (PCA) on estuarine sediment datasets: the effect of data pre-treatment. Environ Pollut 157:2275–2281
Roser BP, Korsch RJ (1999) Geochemical characterization, evolution and source of a Mesozoic accretionary wedge: the Torlesse terrane. New Zealand. Geol Mag 136:493–512
Roser BP, Ishiga H, Lee HK (2000) Geochemistry and provenance of Cretaceous sediments from the Euisong block, Gyeongsang basin, Korea. Mem Geol Soc Jpn 57:155–170
Rudnick RL, Gao S (2005) Composition of the continental crust. In: Rudnick RL (ed) The crust. Treatise on geochemistry, vol 3. Elsevier-Pergamon, Oxford, pp 1–64
Ruiz-Fernandez AC, Hillaire-Marcel C, Paez-Osuna F, Ghaleb B, Soto-Jimenez M (2003) Historical trends of metal pollution recorded in the sediments of the Culiacan River Estuary, Northwestern Mexico. Appl Geochem 18:577–588
SAIC (Science Applications International Corporation, Canada) (2002) Compilation and review of Canadian remediation guidelines, standards and regulations (Final report, B187-413, pp 79). Emergencies Engineering Technologies Office (EETO)–Environment Canada, Ottawa, Canada
Schnetger B, Brumsack HJ, Schale H, Hinrichs J, Dittert L (2000) Geochemical characteristics of deep-sea sediments from the Arabian Sea: a high-resolution study. Deep-Sea Res II 47:2735–2768
Singh P (2009) Major, trace and REE geochemistry of the Ganga River sediments: influence of provenance and sedimentary processes. Chem Geol 266:242–255
Taylor SR, McLennan SM (1985) The continental crust: its composition and evolution. Blackwell, Oxford, p 312
Whalen JB, Currie KL, Chappell BW (1987) A-type granites—geochemical characteristics, discrimination and petrogenesis. Contrib Min Pet 95:407–419
Wijayananda NP (1985) Geological setting around the heads of the Trincomalee canyon, Sri Lanka. J Natl Sci Couns Sri Lanka 13:213–226
Woods AM, Lloyd JM, Zong Y, Brodie CR (2012) Spatial mapping of Pearl River Estuary surface sediment geochemistry: influence of data analysis on environmental interpretation. Estuar Coast Shelf Sci 115:218–233
Young SM, Pitawala A, Ishiga H (2012) Geochemical characteristics of stream sediments, sediment fractions, soils, and basement rocks from the Mahaweli River and its catchment, Sri Lanka. Chem Erde Geochem. doi:10.1016/j.chemer.2012.09.003
Zhang J, Liu CL (2002) Riverine composition and estuarine geochemistry of particulate metals in China—weathering features, anthropogenic impact and chemical fluxes. Estuar Coast Shelf Sci 54:1051–1070
Zhang L, Ye X, Feng H, Jing Y, Ouyang T, Yu X, Liang R, Gao C, Chen W (2007) Heavy metal contamination in western Xiamen Bay sediments and its vicinity, China. Mar Pollut Bull 54:974–982
Acknowledgments
We gratefully acknowledge the Japanese government for financial assistance to carry out our study and thank the Sri Lankan Naval Force and Amila Ratnayake for support during sample collection and Toshiaki Irizuki and Tetsuya Sakai for their supervision of the grain size analysis. We also thank the Editor-In-Chief, P.N. Owens, and three anonymous reviewers for their very helpful and constructive comments, which improved the manuscript considerably. The samples were imported via plant protection of the Ministry of Agriculture, Forestry and Fisheries, Japan.
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Young, S.M., Ishiga, H., Roser, B.P. et al. Geochemistry of sediments in three sectors of Trincomalee Bay, Sri Lanka: provenance, modifying factors and present environmental status. J Soils Sediments 14, 204–217 (2014). https://doi.org/10.1007/s11368-013-0798-8
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DOI: https://doi.org/10.1007/s11368-013-0798-8