Outputs (28)

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.

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. 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.

Silicon and chromium stable isotopic systematics during basalt weathering and lateritisation: A comparison of variably weathered basalt profiles in the Deccan Traps, India (2017)
Journal Article
Wille, M., Babechuk, M. G., Kleinhanns, I. C., Stegmaier, J., Suhr, N., Widdowson, M., Kamber, B. S., & Schoenberg, R. (2018). Silicon and chromium stable isotopic systematics during basalt weathering and lateritisation: A comparison of variably weathered basalt profiles in the Deccan Traps, India. Geoderma, 314, 190-204. https://doi.org/10.1016/j.geoderma.2017.10.051

Global biomass production is fundamentally affected by the hydrological cycling of elements at the Earth's surface. Continental weathering processes are the major source for most bio-essential elements in marine environments and therefore affect prim... Read More about Silicon and chromium stable isotopic systematics during basalt weathering and lateritisation: A comparison of variably weathered basalt profiles in the Deccan Traps, India.

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., SMITH, P. M., WIDDOWSON, M., Faggetter, L., Joachimski, M., Pruss, S., Raine, R., Smith, P., SUN, Y., & 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. https://doi.org/10.1016/j.palaeo.2015.05.006

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) - a semi-continuous out... 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.

A common parentage for Deccan Continental Flood Basalt and Central Indian Ocean Ridge Basalt? A geochemical and isotopic approach (2013)
Journal Article
Ray, D., Misra, S., Widdowson, M., & Langmuir, C. H. (2014). A common parentage for Deccan Continental Flood Basalt and Central Indian Ocean Ridge Basalt? A geochemical and isotopic approach. Journal of Asian Earth Sciences, 84, 188-200. https://doi.org/10.1016/j.jseaes.2013.12.015

A comparison of geochemical and Sr-Nd-Pb isotopic compositions for Deccan Continental Flood Basalts (CFBs) and Central Indian Ridge (CIR) Basalts is presented: these data permit assessment of possible parental linkages between the two regions, and co... Read More about A common parentage for Deccan Continental Flood Basalt and Central Indian Ocean Ridge Basalt? A geochemical and isotopic approach.

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.

An immense shield volcano within the Shatsky Rise oceanic plateau, northwest Pacific Ocean (2013)
Journal Article
Sager, W. W., Zhang, J., Korenaga, J., Sano, T., Koppers, A. A. P., Widdowson, M., & Mahoney, J. J. (2013). An immense shield volcano within the Shatsky Rise oceanic plateau, northwest Pacific Ocean. Nature Geoscience, 6(11), 976-981. https://doi.org/10.1038/ngeo1934

Most oceanic plateaux are massive basaltic volcanoes. However, the structure of these volcanoes, and how they erupt and evolve, is unclear, because they are remote and submerged beneath the oceans. Here we use multichannel seismic profiles and rock s... Read More about An immense shield volcano within the Shatsky Rise oceanic plateau, northwest Pacific Ocean.