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Full-Text Articles in Social and Behavioral Sciences
Anthropogenic Trace Metal Contamination Of Port Kembla Harbour Sediments, Bryan E. Chenhall, Mark O'Donnell, D Garnett, Helen Waldron, Brian G. Jones
Anthropogenic Trace Metal Contamination Of Port Kembla Harbour Sediments, Bryan E. Chenhall, Mark O'Donnell, D Garnett, Helen Waldron, Brian G. Jones
Faculty of Science, Medicine and Health - Papers: part A
Detailed geochemical investigation of the bottom sediments in Port Kembla Harbour using neutron activation (NAA) and X-ray-fluorescence (XRF) techniques has delineated areas severely impacted by anthropogenically-sourced trace elements including potentially toxic metals (Pb, Cu) and metalloids (As and Se). In the south western section of Port Kembla Outer Harbour, copper concentrations in excess of 6000 ppm (~30x ANZECC-ARMCANZ (2000) ISQG-high trigger value) are associated with significant (i.e. above ISQH-high) concentrations oflead, zinc and arsenic. The potential source of sediment contamination here is the Port Kembla Copper (formerly ERS and Southern Copper) smelter. Port Kembla Inner Harbour sediments are geochemically distinct …
Heavy Minerals In Modern Sediments Of The Minnamurra Estuary And Shelf Environment, Nsw, Australia, Rabea Haredy, Brian G. Jones, Adrian C. Hutton
Heavy Minerals In Modern Sediments Of The Minnamurra Estuary And Shelf Environment, Nsw, Australia, Rabea Haredy, Brian G. Jones, Adrian C. Hutton
Faculty of Science, Medicine and Health - Papers: part A
Provenance and sediment distribution have been investigated in the Minnamurra estuary and the adjacent shelf in NSW, Australia. Heavy mineral assemblages in the sand fractions (63-250 f.lm) of 110 surficial sediment samples were assessed using microscopic and microprobe analyses. In addition to the dominant opaque minerals, twelve translucent heavy mineral species were identified. The translucent assemblage is dominated by pyroxene, zircon, tourmaline and hornblende. Statistical cluster analysis of heavy mineral percentages in the surficial sediments revealed the existence of five mineralogical facies: the upper fluvial part of the estuary, the Minnamurra spit and elevated inner sand terrace, the estuary inlet …