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Wave ripple development on mixed clay-sand substrates: Effects of clay winnowing and armoring (2018)
Journal Article
Wu, X., Baas, J. H., Parsons, D. R., Eggenhuisen, J., Amoudry, L., Cartigny, M., McLelland, S., Mouazé, D., & Ruessink, G. (2018). Wave ripple development on mixed clay-sand substrates: Effects of clay winnowing and armoring. Journal of Geophysical Research: Earth Surface, 123(11), 2784-2801. https://doi.org/10.1029/2018JF004681

Based on bed form experiments in a large‐scale flume, we demonstrate that the rate of development of wave ripples on a mixed sand‐clay bed under regular waves is significantly lower than on a pure‐sand bed, even at clay fractions as low as 4.2%, and... Read More about Wave ripple development on mixed clay-sand substrates: Effects of clay winnowing and armoring.

Leaching behaviour of co-disposed steel making wastes: Effects of aeration on leachate chemistry and vanadium mobilisation (2018)
Journal Article
Hobson, A. J., Stewart, D. I., Mortimer, R. J., Mayes, W. M., Rogerson, M., & Burke, I. T. (2018). Leaching behaviour of co-disposed steel making wastes: Effects of aeration on leachate chemistry and vanadium mobilisation. Waste Management, 81, 1-10. https://doi.org/10.1016/j.wasman.2018.09.046

Steelmaking wastes stored in landfill, such as slag and spent refractory liners, are often enriched in toxic trace metals (including V). These may become mobile in highly alkaline leachate generated during weathering. Fresh steelmaking waste was char... Read More about Leaching behaviour of co-disposed steel making wastes: Effects of aeration on leachate chemistry and vanadium mobilisation.

Evidence for basement reactivation during the opening of the Labrador Sea from the Makkovik Province, Labrador, Canada: Insights from field data and numerical models (2018)
Journal Article
Peace, A. L., Dempsey, E. D., Schiffer, C., Welford, J., Mccaffrey, K. J., Imber, J., & Phethean, J. J. (2018). Evidence for basement reactivation during the opening of the Labrador Sea from the Makkovik Province, Labrador, Canada: Insights from field data and numerical models. Geosciences, 8(8), 308. https://doi.org/10.3390/geosciences8080308

The onshore exposures adjacent to modern, offshore passive continental margins may preserve evidence of deformation from the pre‐, syn‐, and post‐rift phases of continental breakup that allow us to investigate the processes associated with and contro... Read More about Evidence for basement reactivation during the opening of the Labrador Sea from the Makkovik Province, Labrador, Canada: Insights from field data and numerical models.

Options for managing alkaline steel slag leachate: A life cycle assessment (2018)
Journal Article
Gomes, H. I., Mayes, W. M., Baxter, H. A., Jarvis, A. P., Burke, I. T., Stewart, D. I., & Rogerson, M. (2018). Options for managing alkaline steel slag leachate: A life cycle assessment. Journal of cleaner production, 202, 401-412. https://doi.org/10.1016/j.jclepro.2018.08.163

Management of steel slag (a major by-product of the steel industry) includes the treatment of highly alkaline leachate (pH > 11.5) from rainwater infiltration of slag deposits to prevent adverse impact upon surface or ground waters. This study aims t... Read More about Options for managing alkaline steel slag leachate: A life cycle assessment.

New 40Ar/39Ar dating of the Antrim Plateau Volcanics, Australia: clarifying an age for the eruptive phase of the Kalkarindji continental flood basalt province (2018)
Journal Article
Marshall, P. E., Halton, A. M., Kelley, S. P., Widdowson, M., & Sherlock, S. C. (2018). New 40Ar/39Ar dating of the Antrim Plateau Volcanics, Australia: clarifying an age for the eruptive phase of the Kalkarindji continental flood basalt province. Journal of the Geological Society, 175(6), 974-985. https://doi.org/10.1144/jgs2018-035

The Kalkarindji flood basalt province of northern Australia erupted in the mid-Cambrian. Today, the province consists of scattered volcanic and intrusive suites, the largest being the Antrim Plateau Volcanics (APV) in Northern Territory. Accurate dat... Read More about New 40Ar/39Ar dating of the Antrim Plateau Volcanics, Australia: clarifying an age for the eruptive phase of the Kalkarindji continental flood basalt province.

Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents (2018)
Journal Article
Smith, G. M., Williams, R., Rowley, P., & Parsons, D. R. (2018). Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents. Bulletin of volcanology, 80(8), Article 67. https://doi.org/10.1007/s00445-018-1241-1

The high mobility of dense pyroclastic density currents (PDCs) is commonly attributed to high gas pore pressures. However, the influence of spatial and temporal variations in pore pressure within PDCs has yet to be investigated. Theory suggests that... Read More about Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents.

Behaviour and fate of vanadium during the aerobic neutralisation of hyperalkaline slag leachate (2018)
Journal Article
Hobson, A. J., Stewart, D. I., Bray, A. W., Mortimer, R. J., Mayes, W. M., Riley, A. L., Rogerson, M., & Burke, I. T. (2018). Behaviour and fate of vanadium during the aerobic neutralisation of hyperalkaline slag leachate. The Science of the total environment, 643, 1191-1199. https://doi.org/10.1016/j.scitotenv.2018.06.272

© 2018 Vanadium is a toxic metal present in alkaline leachates produced during the weathering of steel slags. Slag leaching can therefore have deleterious effects on local watercourses due to metal toxicity, the effects of the high pH (9–12.5) and ra... Read More about Behaviour and fate of vanadium during the aerobic neutralisation of hyperalkaline slag leachate.

A microbial role in the construction of Mono Lake carbonate chimneys? (2018)
Journal Article
Brasier, A., Wacey, D., Rogerson, M., Guagliardo, P., Saunders, M., Kellner, S., Mercedes-Martin, R., Prior, T., Taylor, C., Matthews, A., & Reijmer, J. (2018). A microbial role in the construction of Mono Lake carbonate chimneys?. Geobiology, 16(5), 540-555. https://doi.org/10.1111/gbi.12292

Lacustrine carbonate chimneys are striking, metre‐scale constructions. If these were bioinfluenced constructions, they could be priority targets in the search for early and extraterrestrial microbial life. However, there are questions over whether su... Read More about A microbial role in the construction of Mono Lake carbonate chimneys?.

Recovery of Al, Cr and V from steel slag by bioleaching: batch and column experiments (2018)
Journal Article
Gomes, H. I., Funari, V., Mayes, W. M., Rogerson, M., & Prior, T. J. (2018). Recovery of Al, Cr and V from steel slag by bioleaching: batch and column experiments. Journal of environmental management, 222, 30-36. https://doi.org/10.1016/j.jenvman.2018.05.056

Steel slag is a major by-product of the steel industry and a potential resource of technology critical elements. For this study, a basic oxygen furnace (BOF) steel slag was tested for bacterial leaching and recovery of aluminium (Al), chromium (Cr),... Read More about Recovery of Al, Cr and V from steel slag by bioleaching: batch and column experiments.

Thallium concentration and thallium isotope composition of lateritic terrains (2018)
Journal Article
Howarth, S., Prytulak, J., Little, S. H., Hammond, S. J., & Widdowson, M. (2018). Thallium concentration and thallium isotope composition of lateritic terrains. Geochimica et cosmochimica acta, 239, 446-462. https://doi.org/10.1016/j.gca.2018.04.017

Continental weathering plays a key role in modifying the geochemical budget of terrestrial reservoirs. Laterites are the products of extreme sub-aerial continental weathering. This study presents the first investigation of thallium (Tl) abundances an... Read More about Thallium concentration and thallium isotope composition of lateritic terrains.

Miocene UHT granulites from Seram, eastern Indonesia: a geochronological–REE study of zircon, monazite and garnet (2018)
Book Chapter
Pownall, J. M., Armstrong, R. A., Williams, I. S., Thirlwall, M. F., Manning, C. J., & Hall, R. (2019). Miocene UHT granulites from Seram, eastern Indonesia: a geochronological–REE study of zircon, monazite and garnet. In S. Ferrero, P. Lanari, P. Goncalves, & E. Grosch (Eds.), Metamorphic Geology: Microscale to Mountain Belts (167-196). Geological Society. https://doi.org/10.1144/SP478.8

The island of Seram, eastern Indonesia, incorporates Miocene ultrahigh-temperature (UHT; greater than 900°C) garnet–sillimanite granulites that formed by extensional exhumation of hot mantle rocks behind the rolling-back Banda Arc. UHT metamorphic co... Read More about Miocene UHT granulites from Seram, eastern Indonesia: a geochronological–REE study of zircon, monazite and garnet.

Th/U and U series systematics of saprolite: importance for the oceanic 234U excess (2018)
Journal Article
Suhr, N., Widdowson, M., McDermott, F., & Kamber, B. S. (2018). Th/U and U series systematics of saprolite: importance for the oceanic 234U excess. Geochemical Perspectives Letters, 6, 17-22. https://doi.org/10.7185/geochemlet.1803

The presence of excess 234U in seawater is a compelling argument for active delivery of solutes from the continents to the oceans. Previous studies found, however, that the complementary 234U deficit on the continents is surprisingly modest, which wo... Read More about Th/U and U series systematics of saprolite: importance for the oceanic 234U excess.

First evidence of Renlandian (c. 950-940 Ma) orogeny in Mainland Scotland: implications for the status of the Moine Supergroup and circum-North Atlantic correlations (2018)
Journal Article
Bird, A., Cutts, K., Strachan, R., Thirlwall, M. F., & Hand, M. (2018). First evidence of Renlandian (c. 950-940 Ma) orogeny in Mainland Scotland: implications for the status of the Moine Supergroup and circum-North Atlantic correlations. Precambrian research, 305, 283-294. https://doi.org/10.1016/j.precamres.2017.12.019

Central problems in the interpretation of the Neoproterozoic geology of the North Atlantic region arise from uncertainties in the ages of, and tectonic drivers for, Tonian orogenic events recorded in eastern Laurentia and northern Baltica. The identi... Read More about First evidence of Renlandian (c. 950-940 Ma) orogeny in Mainland Scotland: implications for the status of the Moine Supergroup and circum-North Atlantic correlations.

Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife (2018)
Journal Article
Harnett, C. E., Benson, P. M., Rowley, P., & Fazio, M. (2018). Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife. Scientific reports, 8(1), Article 1942. https://doi.org/10.1038/s41598-018-20442-w

We present elastic wave velocity and strength data from a suite of three volcanic rocks taken from the volcanic edifices of El Hierro and Tenerife (Canary Islands, Spain), and Stromboli (Aeolian Islands, Italy). These rocks span a range of porosity a... Read More about Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife.

Hydration of dicalcium silicate and diffusion through neo-formed calcium-silicate-hydrates at weathered surfaces control the long-term leaching behaviour of basic oxygen furnace (BOF) steelmaking slag (2018)
Journal Article
Stewart, D. I., Bray, A. W., Udoma, G., Hobson, A. J., Mayes, W. M., Rogerson, M., & Burke, I. T. (2018). Hydration of dicalcium silicate and diffusion through neo-formed calcium-silicate-hydrates at weathered surfaces control the long-term leaching behaviour of basic oxygen furnace (BOF) steelmaking slag. Environmental science and pollution research, 25(10), 9861-9872. https://doi.org/10.1007/s11356-018-1260-7

© 2018 The Author(s) Alkalinity generation and toxic trace metal (such as vanadium) leaching from basic oxygen furnace (BOF) steel slag particles must be properly understood and managed by pre-conditioning if beneficial reuse of slag is to be maximis... Read More about Hydration of dicalcium silicate and diffusion through neo-formed calcium-silicate-hydrates at weathered surfaces control the long-term leaching behaviour of basic oxygen furnace (BOF) steelmaking slag.

Non-Hawaiian lithostratigraphy of Louisville seamounts and the formation of high-latitude oceanic islands and guyots (2018)
Journal Article
Buchs, D. M., Williams, R., Sano, S.-I., & Wright, V. P. (2018). Non-Hawaiian lithostratigraphy of Louisville seamounts and the formation of high-latitude oceanic islands and guyots. Journal of Volcanology and Geothermal Research, 356, 1-23. https://doi.org/10.1016/j.jvolgeores.2017.12.019

Guyots are large seamounts with a flat summit that is generally believed to form due to constructional biogenic and/or erosional processes during the formation of volcanic islands. However, despite their large abundance in the oceans, there are still... Read More about Non-Hawaiian lithostratigraphy of Louisville seamounts and the formation of high-latitude oceanic islands and guyots.

Hydraulic and biotic impacts on neutralisation of high-pH waters (2017)
Journal Article
Gomes, H. I., Mayes, W. M., Rogerson, M., Burke, I. T., & Stewart, D. I. (2017). Hydraulic and biotic impacts on neutralisation of high-pH waters. The Science of the total environment, 601-602, 1271-1279. https://doi.org/10.1016/j.scitotenv.2017.05.248

The management of alkaline (pH 11–12.5) leachate is an important issue associated with the conditioning, afteruse or disposal of steel slags. Passive in-gassing of atmospheric CO2 is a low cost option for reducing Ca(OH)2 alkalinity, as Ca(OH)2 is ne... Read More about Hydraulic and biotic impacts on neutralisation of high-pH waters.

Elemental and isotopic behaviour of Zn in Deccan basalt weathering profiles: Chemical weathering from bedrock to laterite and links to Zn deficiency in tropical soils (2017)
Journal Article
Suhr, N., Schoenberg, R., Chew, D., Rosca, C., Widdowson, M., & Kamber, B. S. (2018). Elemental and isotopic behaviour of Zn in Deccan basalt weathering profiles: Chemical weathering from bedrock to laterite and links to Zn deficiency in tropical soils. The Science of the total environment, 619-620, 1451-1463. https://doi.org/10.1016/j.scitotenv.2017.11.112

Zinc (Zn) is a micronutrient for organisms and essential for plant growth, therefore knowledge of its elemental cycling in the surface environment is important regarding wider aspects of human nutrition and health. To explore the nature of Zn cycling... Read More about Elemental and isotopic behaviour of Zn in Deccan basalt weathering profiles: Chemical weathering from bedrock to laterite and links to Zn deficiency in tropical soils.

Insights into the provenance of the Chinese Loess Plateau from joint zircon U-Pb and garnet geochemical analysis of last glacial loess (2017)
Journal Article
Fenn, K., Stevens, T., Bird, A., Limonta, M., Rittner, M., Vermeesch, P., Andò, S., Garzanti, E., Lu, H., Zhang, H., & Lin, Z. (2018). Insights into the provenance of the Chinese Loess Plateau from joint zircon U-Pb and garnet geochemical analysis of last glacial loess. Quaternary Research, 89(3), 645-659. https://doi.org/10.1017/qua.2017.86

The Chinese Loess Plateau, the world’s largest and oldest loess record, preserves evidence of Asia’s long-term dust source dynamics, but there is uncertainty over the source of the deposits. Recent single-grain detrital zircon U-Pb age analysis has p... Read More about Insights into the provenance of the Chinese Loess Plateau from joint zircon U-Pb and garnet geochemical analysis of last glacial loess.