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Cu and Zn isotope fractionation during extreme chemical weathering (2019)
Journal Article
Little, S. H., Munson, S., Prytulak, J., Coles, B. J., Hammond, S. J., & Widdowson, M. (2019). Cu and Zn isotope fractionation during extreme chemical weathering. Geochimica et cosmochimica acta, 263, 85-107. https://doi.org/10.1016/j.gca.2019.07.057

Copper and Zn are trace metal micronutrients whose stable isotope systematics are receiving increasing attention as possible paleoenvironmental tracers. However, to realise this potential, their behaviour during chemical weathering must be better con... Read More about Cu and Zn isotope fractionation during extreme chemical weathering.

Mercury chemostratigraphy across the Cambrian Series 2 – Series 3 boundary: evidence for increased volcanic activity coincident with extinction? (2019)
Journal Article
Faggetter, L., Wignall, P., Pruss, S., Jones, D., Grasby, S., Widdowson, M., & Newton, R. (2019). Mercury chemostratigraphy across the Cambrian Series 2 – Series 3 boundary: evidence for increased volcanic activity coincident with extinction?. Chemical Geology, 510, 188-199. https://doi.org/10.1016/j.chemgeo.2019.02.006

Flood basalt volcanism represented by the Kalkarindji Province(Australia) is temporally associated with a trilobite mass extinction at the Cambrian Series 2 – Series 3 boundary, providing one of the oldest potential links between volcanism and biotic... Read More about Mercury chemostratigraphy across the Cambrian Series 2 – Series 3 boundary: evidence for increased volcanic activity coincident with extinction?.

Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland (2016)
Journal Article
FAGGETTER, L. E., WIGNALL, P. B., PRUSS, S. B., RAINE, R. J., NEWTON, R. J., JOACHIMSKI, M. M., …Wignall, P. B. (2018). Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland. Geological magazine, 155(04), 1-13. https://doi.org/10.1017/s0016756816000947

Globally, the Series 2 – Series 3 boundary of the Cambrian System coincides with a major carbon isotope excursion, sea-level changes and trilobite extinctions. Here we examine the sedimentology, sequence stratigraphy and carbon isotope record of this... Read More about Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland.

Submarine palaeoenvironments during Emeishan flood basalt volcanism, SW China: Implications for plume-lithosphere interaction during the Capitanian, Middle Permian ('end Guadalupian') extinction event (2015)
Journal Article
Jerram, D. A., Widdowson, M., Wignall, P. B., Sun, Y., Lai, X., Bond, D. P., & Torsvik, T. H. (2016). Submarine palaeoenvironments during Emeishan flood basalt volcanism, SW China: Implications for plume-lithosphere interaction during the Capitanian, Middle Permian ('end Guadalupian') extinction event. Palaeogeography, palaeoclimatology, palaeoecology, 441(1), 65-73. https://doi.org/10.1016/j.palaeo.2015.06.009

Plume-induced lithospheric uplift and erosion are widely regarded as key features of large igneous province (LIP) emplacement, as is the coincidence of LIP eruption with major extinction and oceanic anoxic events (OAE). The Emeishan LIP, which erupte... Read More about Submarine palaeoenvironments during Emeishan flood basalt volcanism, SW China: Implications for plume-lithosphere interaction during the Capitanian, Middle Permian ('end Guadalupian') extinction event.

The Giant Lavas of Kalkarindji: Rubbly pāhoehoe lava in an ancient continental flood basalt province (2015)
Journal Article
Marshall, P. E., Widdowson, M., & Murphy, D. T. (2016). The Giant Lavas of Kalkarindji: Rubbly pāhoehoe lava in an ancient continental flood basalt province. Palaeogeography, palaeoclimatology, palaeoecology, 441(1), (22-37). doi:10.1016/j.palaeo.2015.05.006. ISSN 0031-0182

© 2015 Elsevier B.V. The Kalkarindji continental flood basalt province of northern Australia erupted in the mid Cambrian (c. 511-505Ma). It now consists of scattered basaltic lava fields, the most extensive being the Antrim Plateau Volcanics (APV) -... Read More about The Giant Lavas of Kalkarindji: Rubbly pāhoehoe lava in an ancient continental flood basalt province.

A combined Y/Ho, high field strength element (HFSE) and Nd isotope perspective on basalt weathering, Deccan Traps, India (2014)
Journal Article
Babechuk, M. G., Widdowson, M., Murphy, M., & Kamber, B. S. (2015). A combined Y/Ho, high field strength element (HFSE) and Nd isotope perspective on basalt weathering, Deccan Traps, India. Chemical Geology, 396, 25-41. https://doi.org/10.1016/j.chemgeo.2014.12.017

High-precision high field strength element (HFSE: Zr, Hf, Nb, Ta, Th, U, W, Mo), Y/Ho, and Nd isotope chemostratigraphy of two contrasting Deccan Traps weathering profiles - an ancient, deeply weathered laterite, and a younger (Quaternary), more mode... Read More about A combined Y/Ho, high field strength element (HFSE) and Nd isotope perspective on basalt weathering, Deccan Traps, India.

Quantifying chemical weathering intensity and trace element release from two contrasting basalt profiles, Deccan Traps, India (2013)
Journal Article
Babechuk, M. G., Widdowson, M., & Kamber, B. S. (2014). Quantifying chemical weathering intensity and trace element release from two contrasting basalt profiles, Deccan Traps, India. Chemical Geology, 363, 56-75. https://doi.org/10.1016/j.chemgeo.2013.10.027

Weathering profiles developed on basalt substrate contain information relevant to climate, atmospheric composition and evolution, nutrient release into the hydrosphere, and understanding Martian regolith. In this study, the chemical compositions of t... Read More about Quantifying chemical weathering intensity and trace element release from two contrasting basalt profiles, Deccan Traps, India.

Volcanism, mass extinction, and carbon isotope fluctuations in the Middle Permian of China (2009)
Journal Article
Wignall, P. B., Sun, Y., Bond, D. P. G., Izon, G., Newton, R. J., Védrine, S., …Bottrell, S. H. (2009). Volcanism, mass extinction, and carbon isotope fluctuations in the Middle Permian of China. Science, 324(5931), 1179-1182. doi:10.1126/science.1171956

The 260-million-year-old Emeishan volcanic province of southwest China overlies and is interbedded with Middle Permian carbonates that contain a record of the Guadalupian mass extinction. Sections in the region thus provide an opportunity to directly... Read More about Volcanism, mass extinction, and carbon isotope fluctuations in the Middle Permian of China.