Jeffrey V. Turner

CSIRO Land and Water

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Michael R. Rosen

University of Tübingen

Lloyd R. Townley

Nanjing University

Makoto Taniguchi

Research Institute for Humanity and Nature

A. J. E. Smith

Leeds Beckett University

Robert J. Woodbury

CSIRO Land and Water

Eiichi Shimojima

Daido University

Lee Coshell

University of New England

Ichiro Tamagawa

Gifu University

Jaye E. Cable

University of North Carolina at Chapel Hill

V. Gailitis

Commonwealth Scientific and Industrial Research Organisation

Cooperative Institutions

John Wiley & Sons (United States)

United States Geological Survey

CSIRO Land and Water

Commonwealth Scientific and Industrial Research Organisation

University of Western Australia

Aristotle University of Thessaloniki

University of Crete

University of Birmingham

University College London

AHEPA University Hospital

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The IAEA 11th international symposium on isotope hydrology and integrated water resources management, 19-23 May 2003

Hydrological Processes (2005)

Jeffrey V. Turner Pradeep Aggarwal

Atomic Energy

Section (typography)

10.1002/hyp.5968

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Citations (4)

Density‐dependent surface water–groundwater interaction and nutrient discharge in the Swan–Canning Estuary

Hydrological Processes (2001)

A. J. E. Smith Jeffrey V. Turner

Abstract Salinity in the Swan–Canning Estuary, Western Australia, varies seasonally from freshwater conditions in winter up to the salinity of seawater in summer. Field observations show that the resulting seasonal density contrasts between the estuary and the adjacent fresh groundwater system are sufficient to drive mixed‐convection cells that give rise to circulation of river water in the aquifer. In this study, we examine the role of steady density‐driven convection as a mechanism that contributes to the exchange of dissolved nutrients, particularly ammonium, between the Swan–Canning Estuary and the local groundwater system. We present results from two‐dimensional (section) and three‐dimensional density‐coupled flow and mass transport modelling, in comparison with Glover's abrupt‐interface solution for saltwater intrusion. The modelling is focused on developing an understanding of the physical processes that influence the long‐term or mean convective behaviour of groundwater beneath the estuary. It is shown that the convective stability depends fundamentally on the interplay between two factors: (1) the downward destabilizing buoyancy effect of density contrasts between the estuary and aquifer; and (2) the upward stabilizing influence of regional groundwater discharge. The structure of convection cells beneath the estuary and recirculation rates of estuary water within the groundwater system are shown to be related to a flow‐modified Rayleigh number that depends critically on the aquifer anisotropy and estuary meander pattern. The recirculation of estuary water by these mechanisms is responsible for transport of high concentrations of ammonium, observed in pore fluids in the estuary bed sediments, into groundwater and its eventual return to the estuary. Copyright © 2001 John Wiley & Sons, Ltd.

Groundwater discharge

Submarine groundwater discharge

Saltwater intrusion

10.1002/hyp.303

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Citations (87)

Future trends in transport and fate of diffuse contaminants in catchments, with special emphasis on stable isotope applications

Hydrological Processes (2006)

Jeffrey V. Turner Hans‐Jørgen Albrechtsen Mike Bonell J.P. Duguet Bob Harris

A summary is provided of the first of a series of proposed Integrated Science Initiative workshops supported by the UNESCO International Hydrological Programme. The workshop brought together hydrologists, environmental chemists, microbiologists, stable isotope specialists and natural resource managers with the purpose of communicating new ideas on ways to assess microbial degradation processes and reactive transport at catchment scales. The focus was on diffuse contamination at catchment scales and the application of compound-specific isotope analysis (CSIA) in the assessment of biological degradation processes of agrochemicals. Major outcomes were identifying the linkage between water residence time distribution and rates of contaminant degradation, identifying the need for better information on compound specific microbial degradation isotope fractionation factors and the potential of CSIA in identifying key degradative processes. In the natural resource management context, a framework was developed where CSIA techniques were identified as practically unique in their capacity to serve as distributed integrating indicators of process across a range of scales (micro to diffuse) of relevance to the problem of diffuse pollution assessment. Copyright © 2006 John Wiley & Sons, Ltd.

Isotope Analysis

10.1002/hyp.6074

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Citations (28)

Enriched ¹³C composition of interstitial waters in sediments of a freshwater lake

Canadian Journal of Earth Sciences (1983)

Jeffrey V. Turner P. Fritz

The DIC (dissolved inorganic carbon) of interstitial waters from sediments of a small carbonate-precipitating lake in southern Ontario has highly enriched δ 13 C values of up to +13‰ relative to PDB (Peedee belemnite). This post-depositional isotopic enrichment is attributed to the metabolism of methanogenic bacteria. The δ 13 C values of marl in the sediment profile are also enriched by an average of +3 to +4‰ relative to the associated molluscs.Photosynthetically induced carbonate precipitation and post-depositional recrystallization are among the processes that are considered to contribute to the isotopically enriched marls. Evidence for the latter process is drawn from geochemical analyses on interstitial waters, which show them to be at or very close to saturation with respect to calcite, indicating that net calcite dissolution has occurred, probably under the influence of high pCO 2 's generated by methanogenic bacteria. Such freshwater carbonate sediments with interstitial waters enriched in 13 C provide a unique environment for study of isotope relations during carbonate diagenesis under accessible conditions and with a time scale of geologic relevance.

Marl

Carbonate minerals

Rhodochrosite

10.1139/e83-057

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Citations (19)

Hydrochemistry on the yilgarn block, western Australia: Ferrolysis and mineralisation in acidic brines

Geochimica et Cosmochimica Acta (1991)

J.M. McArthur Jeffrey V. Turner W. Berry Lyons A.O. Osborn M.F. Thirlwall

Alunite

Bedrock

Alkalinity

10.1016/0016-7037(91)90306-p

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Citations (82)

Salt sources and water-rock interaction on the Yilgarn Block, Australia: isotopic and major element tracers

Applied Geochemistry (1989)

J.M. McArthur Jeffrey V. Turner W. Berry Lyons M.F. Thirlwall

Halite

Alunite

Authigenic

10.1016/0883-2927(89)90060-7

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Citations (65)

Kinetic fractionation of carbon-13 during calcium carbonate precipitation

Geochimica et Cosmochimica Acta (1982)

Jeffrey V. Turner

Equilibrium fractionation

10.1016/0016-7037(82)90004-7

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Citations (278)

List of Contributors

Elsevier eBooks (1998)

George R. Aiken Albrecht Achim Ronald Amundson Araguás Araguás Luis Ramón Aravena

10.1016/b978-0-444-81546-0.50007-0

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The mechanism of evaporation from sand columns with restricted and unrestricted water tables using deuterium under turbulent airflow conditions

Journal of Hydrology (1990)

Eiichi Shimojima A. A. Curtis Jeffrey V. Turner

10.1016/0022-1694(90)90085-c

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Citations (33)

Diagenetic dolomite formation in a Holocene evaporitic lake

AAPG Bulletin (1991)

Lee Coshell J. Scott Michael R. Rosen Jeffrey V. Turner

Holocene dolomite forms in the sediment of Lake Hayward, a small, permanent, hypersaline lake in the Clifton-Preston Lakeland System, Western Australia. The Clifton-Preston Lakeland System is similar in climate, geography, and sedimentology to the Coorong Region of South Australia. However, dolomite in Lake Hayward is not a primary precipitate as in the Coorong but is of diagenetic origin. The diagenetic origin can be deduced from the combination of the following criteria: (1) the dolomite occurs only between 60-70 cm from the sediment water interface; (2) dolomite occurs as luminescing cement; and (3) dolomite has pristine well-formed rhomb-shaped crystals. The source of magnesium for dolomitization is probably from the concentration of inflowing groundwater by evaporation and the selective removal of calcium by aragonite/calcite precipitation. Although the mechanisms of dolomite formation in Lake Hayward are slightly different than in the Coorong, the presence of Holocene dolomite in an almost identical setting illustrates the importance of the 'Coorong model' for dolomite formation in modern coastal areas.

Dolomitization

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