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  1. The polycyclic aromatic hydrocarbon (PAH) contamination of urban, agricultural and forest soil samples was investigated from samples obtained in the surroundings of Valasske Mezirici. Valasske Mezirici is a to...

    Authors: Daniela Plachá, Helena Raclavská, Dalibor Matýsek and Mark H Rümmeli

    Citation: Geochemical Transactions 2009 10:12

    Content type: Research article

    Published on:

  2. This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigati...

    Authors: Guoxiang Zhang, Nicolas Spycher, Eric Sonnenthal and Carl Steefel

    Citation: Geochemical Transactions 2009 10:11

    Content type: Research article

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  3. Given the importance of highly reactive oxygen species (hROS) as reactants in a wide range of biological, photochemical, and environmental systems there is an interest in detection and quantification of these ...

    Authors: Corey A Cohn, Christopher E Pedigo, Shavonne N Hylton, Sanford R Simon and Martin AA Schoonen

    Citation: Geochemical Transactions 2009 10:8

    Content type: Methodology

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  4. Lateral Force Microscopy (LFM) studies were carried out on cleaved calcite sections in contact with solutions supersaturated with respect to otavite (CdCO3) or calcite-otavite solid solutions (SS) as a means to e...

    Authors: Pablo Cubillas and Steven R Higgins

    Citation: Geochemical Transactions 2009 10:7

    Content type: Methodology

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  5. Siderophore-promoted iron acquisition by microorganisms usually occurs in the presence of other organic molecules, including biosurfactants. We have investigated the influence of the anionic surfactant sodium ...

    Authors: Naraya Carrasco, Ruben Kretzschmar, Jide Xu and Stephan M Kraemer

    Citation: Geochemical Transactions 2009 10:5

    Content type: Research article

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  6. Carbon storage in deep saline reservoirs has the potential to lower the amount of CO2 emitted to the atmosphere and to mitigate global warming. Leakage back to the atmosphere through abandoned wells and along fau...

    Authors: Susan Carroll, Yue Hao and Roger Aines

    Citation: Geochemical Transactions 2009 10:4

    Content type: Research article

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  7. Thermal cracking of kerogens and bitumens is widely accepted as the major source of natural gas (thermal gas). Decomposition is believed to occur at high temperatures, between 100 and 200°C in the subsurface a...

    Authors: Frank D Mango and Daniel M Jarvie

    Citation: Geochemical Transactions 2009 10:3

    Content type: Research article

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  8. The dispersion-aggregation behaviors of suspended colloids in rivers and estuaries are affected by the compositions of suspended materials (i.e., clay minerals vs. organic macromolecules) and salinity. Laborat...

    Authors: Yoko Furukawa, Janet L Watkins, Jinwook Kim, Kenneth J Curry and Richard H Bennett

    Citation: Geochemical Transactions 2009 10:2

    Content type: Research article

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  9. Understanding the integrity of well-bore systems that are lined with Portland-based cements is critical to the successful storage of sequestered CO2 in gas and oil reservoirs. As a first step, we investigate reac...

    Authors: Jacqueline R Houston, Robert S Maxwell and Susan A Carroll

    Citation: Geochemical Transactions 2009 10:1

    Content type: Research article

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  10. Cu and Zn have naturally occurring non radioactive isotopes, and their isotopic systematics in a biological context are poorly understood. In this study we used double focussing mass spectroscopy to determine ...

    Authors: Anette Büchl, Chris J Hawkesworth, K Vala Ragnarsdottir and David R Brown

    Citation: Geochemical Transactions 2008 9:11

    Content type: Research article

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  11. The application of surface complexation models (SCMs) to natural sediments and soils is hindered by a lack of consistent models and data for large suites of metals and minerals of interest. Furthermore, the su...

    Authors: Tracy J Lund, Carla M Koretsky, Christopher J Landry, Melinda S Schaller and Soumya Das

    Citation: Geochemical Transactions 2008 9:9

    Content type: Research article

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  12. Molybdenum disulfide (MoS2), a layered transition-metal dichalcogenide, has been of special importance to the research community of geochemistry, materials and environmental chemistry, and geotechnical engineerin...

    Authors: CV Ramana, U Becker, V Shutthanandan and CM Julien

    Citation: Geochemical Transactions 2008 9:8

    Content type: Research article

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  13. Productivity in the Southern Oceans is iron-limited, and the supply of iron dissolved from aeolian dust is believed to be the main source from outside the marine reservoir. Glacial sediment sources of iron hav...

    Authors: Rob Raiswell, Liane G Benning, Martyn Tranter and Slawek Tulaczyk

    Citation: Geochemical Transactions 2008 9:7

    Content type: Research article

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  14. The speciation of dissolved sulfide in the water immediately surrounding deep-ocean hydrothermal vents is critical to chemoautotrophic organisms that are the primary producers of these ecosystems. The objectiv...

    Authors: Heileen Hsu-Kim, Katherine M Mullaugh, Jeffrey J Tsang, Mustafa Yucel and George W Luther III

    Citation: Geochemical Transactions 2008 9:6

    Content type: Research article

    Published on:

  15. Experiments with dinitrogen-, nitrite-, nitrate-containing solutions were conducted without headspace in Ti reactors (200°C), borosilicate septum bottles (70°C) and HDPE tubes (22°C) in the presence of Fe and ...

    Authors: Alexander Smirnov, Douglas Hausner, Richard Laffers, Daniel R Strongin and Martin AA Schoonen

    Citation: Geochemical Transactions 2008 9:5

    Content type: Research article

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  16. Terpenoid resin is produced by all families and most genera of the order Coniferales (the conifers), and the distribution of terpenes present in most conifer resins is characteristic of the originating family....

    Authors: P Sargent Bray and Ken B Anderson

    Citation: Geochemical Transactions 2008 9:3

    Content type: Research article

    Published on:

  17. Strontium sorption to amorphous silica and goethite was measured as a function of pH and dissolved strontium and carbonate concentrations at 25°C. Strontium sorption gradually increases from 0 to 100% from pH ...

    Authors: Susan A Carroll, Sarah K Roberts, Louise J Criscenti and Peggy A O'Day

    Citation: Geochemical Transactions 2008 9:2

    Content type: Research article

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  18. The origin of the spatial variability of dissolved As concentrations in shallow aquifers of the Bengal Basin remains poorly understood. To address this, we compare here transects of simultaneously-collected gr...

    Authors: Jerome Métral, Laurent Charlet, Sara Bureau, Sukumar Basu Mallik, Sudipta Chakraborty, Kazi M Ahmed, MW Rahman, Zhongqi Cheng and Alexander van Geen

    Citation: Geochemical Transactions 2008 9:1

    Content type: Research article

    Published on:

  19. Forms of selenium in bituminous coal, anthracite, and cokeite (natural coke) from Huaibei Coalfield, Anhui, China, have been determined by sequential solvent extraction. The selenium content in bulk samples is...

    Authors: Ying Zhang, Guijian Liu, Chen-Lin Chou, Lei Wang and Yu Kang

    Citation: Geochemical Transactions 2007 8:14

    Content type: Research article

    Published on:

  20. This study provides experimental evidence for biologically induced precipitation of magnesium carbonates, specifically dypingite (Mg5(CO3)4(OH)2·5H2O), by cyanobacteria from an alkaline wetland near Atlin, Britis...

    Authors: Ian M Power, Siobhan A Wilson, James M Thom, Gregory M Dipple and Gordon Southam

    Citation: Geochemical Transactions 2007 8:13

    Content type: Research article

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  21. High levels of arsenic in groundwater and drinking water are a major health problem. Although the processes controlling the release of As are still not well known, the reductive dissolution of As-rich Fe oxyhy...

    Authors: André Burnol, Francis Garrido, Philippe Baranger, Catherine Joulian, Marie-Christine Dictor, Françoise Bodénan, Guillaume Morin and Laurent Charlet

    Citation: Geochemical Transactions 2007 8:12

    Content type: Research article

    Published on:

  22. Fluid inclusions and geological relationships indicate that rodingite formation in the Asbestos ophiolite, Québec, occurred in two, or possibly three, separate episodes during thrusting of the ophiolite onto t...

    Authors: Charles Normand and Anthony E Williams-Jones

    Citation: Geochemical Transactions 2007 8:11

    Content type: Research article

    Published on:

  23. Sediments recovered from the flooded mine workings of the Penn Mine, a Cu-Zn mine abandoned since the early 1960s, were cultured for anaerobic bacteria over a range of pH (4.0 to 7.5). The molecular biology of...

    Authors: Clinton D Church, Richard T Wilkin, Charles N Alpers, Robert O Rye and R Blaine McCleskey

    Citation: Geochemical Transactions 2007 8:10

    Content type: Research article

    Published on:

  24. Standardized sample preparation techniques allow comparison of pyrite dissolution experiments under diverse conditions. Our objective was to assess dry and wet sieving preparation methodologies, and to develop...

    Authors: Amy L Wolfe, Ran Liu, Brian W Stewart, Rosemary C Capo and David A Dzombak

    Citation: Geochemical Transactions 2007 8:9

    Content type: Methodology

    Published on:

  25. A profile across 8 layers from a fossil travertine terrace from a low temperature geothermal spring located in Svalbard, Norway has been studied using both Raman spectroscopy and SEM (Scanning Electron Microsc...

    Authors: Susana E Jorge-Villar, Liane G Benning and Howell GM Edwards

    Citation: Geochemical Transactions 2007 8:8

    Content type: Research article

    Published on:

  26. Early diagenetic processes involved in natural organic matter (NOM) oxidation in marine sediments have been for the most part characterized after collecting sediment cores and extracting porewaters. These tech...

    Authors: Martial Taillefert, Stephanie Neuhuber and Gwendolyn Bristow

    Citation: Geochemical Transactions 2007 8:6

    Content type: Research article

    Published on:

  27. We report on a continuous-measurement campaign carried out in Vulcano (Aeolian islands, Sicily), devoted to the simultaneous monitoring of CO2 and H2O concentrations. The measurements were performed with an absor...

    Authors: Maurizio De Rosa, Gianluca Gagliardi, Alessandra Rocco, Renato Somma, Paolo De Natale and Giuseppe De Natale

    Citation: Geochemical Transactions 2007 8:5

    Content type: Research article

    Published on:

  28. The effects of soil minerals on chromate (CrVIO42-, noted as Cr(VI)) reduction by sulfide were investigated in the pH range of 7.67 to 9.07 under the anoxic condition. The examined minerals included montmorilloni...

    Authors: Yeqing Lan, Baolin Deng, Chulsung Kim and Edward C Thornton

    Citation: Geochemical Transactions 2007 8:4

    Content type: Research article

    Published on:

  29. A magnetic signature of tree rings was tested as a potential paleo-climatic indicator. We examined wood from sequoia tree, located in Mountain Home State Forest, California, whose tree ring record spans over t...

    Authors: Gunther Kletetschka, Petr Pruner, Daniela Venhodova and Jaroslav Kadlec

    Citation: Geochemical Transactions 2007 8:2

    Content type: Research article

    Published on:

  30. Seasonal changes in pore water and sediment redox geochemistry have been observed in many near-surface sediments. Such changes have the potential to strongly influence trace metal distribution and thus create ...

    Authors: Carla M Koretsky, Johnson R Haas, Douglas Miller and Noah T Ndenga

    Citation: Geochemical Transactions 2006 7:11

    Content type: Research article

    Published on:

  31. Samples of vitrified and unvitrified Eocene woody plant tissues collected from the Fossil Forest site, Geodetic Hills, Axel Heiberg Island, have been characterized by TMAH thermochemolysis. All samples are gym...

    Authors: Paul E Kaelin, William W Huggett and Ken B Anderson

    Citation: Geochemical Transactions 2006 7:9

    Content type: Research article

    Published on:

  32. The chemolithoautotrophic bacterium, Acidithiobacillus ferrooxidans, commonly occurs in acid mine drainage (AMD) environments where it is responsible for catalyzing the oxidation of pyrite and concomitant develop...

    Authors: Jun Hao, Curtis Cleveland, Eelin Lim, Daniel R Strongin and Martin AA Schoonen

    Citation: Geochemical Transactions 2006 7:8

    Content type: Research article

    Published on:

  33. Seawater is constantly circulating through oceanic basement as a low-temperature hydrothermal fluid (<150°C). In cases when ultramafic rocks are exposed to the fluids, for instance during the initial phase of ...

    Authors: Nils G Holm, Marion Dumont, Magnus Ivarsson and Cécile Konn

    Citation: Geochemical Transactions 2006 7:7

    Content type: Review

    Published on:

  34. In this study, a series of interaction coefficients of the Brønsted-Guggenheim-Scatchard specific interaction theory (SIT) have been estimated up to 200°C and 400 bars. The interaction coefficients involving Cl- ...

    Authors: Yongliang Xiong

    Citation: Geochemical Transactions 2006 7:4

    Content type: Research article

    Published on:

  35. Pyrite, the most abundant metal sulphide on Earth, is known to spontaneously form hydrogen peroxide when exposed to water. In this study the hypothesis that pyrite-induced hydrogen peroxide is transformed to h...

    Authors: Corey A Cohn, Steffen Mueller, Eckard Wimmer, Nicole Leifer, Steven Greenbaum, Daniel R Strongin and Martin AA Schoonen

    Citation: Geochemical Transactions 2006 7:3

    Content type: Research article

    Published on:

  36. Upper Cretaceous amber from the Raritan Formation (Sayerville, New Jersey) has been investigated by Pyrolysis-GC-MS and Pyrolysis-GC-matrix isolation FTIR-MS. Results establish the existence of two distinct fo...

    Authors: Ken B Anderson

    Citation: Geochemical Transactions 2006 7:2

    Content type: Research article

    Published on:

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