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Assessing hydrological controls on the lithium isotope weathering tracer (2023)
Journal Article
Pogge von Strandmann, P. A., Cosford, L. R., Liu, C., Liu, X., Krause, A. J., Wilson, D. J., …Burton, K. W. (2023). Assessing hydrological controls on the lithium isotope weathering tracer. Chemical Geology, 642, Article 121801. https://doi.org/10.1016/j.chemgeo.2023.121801

To investigate the impact of riverine discharge and weathering intensity on lithium isotopes (δ7Li) in a mono-lithological terrain, this study examines the dissolved load and leached suspended load (exchangeable, oxide, and clay fractions) from Icela... Read More about Assessing hydrological controls on the lithium isotope weathering tracer.

Sintering of vesiculating pyroclasts (2023)
Journal Article
Weaver, J., Lamur, A., Lea, T., Wadsworth, F., Kendrick, J., Schauroth, J., & Lavallée, Y. (2023). Sintering of vesiculating pyroclasts. Earth and Planetary Science Letters, 623, Article 118410. https://doi.org/10.1016/j.epsl.2023.118410

Hot volcanic pyroclasts can sinter, vesiculate, and outgas in concert – a combination of processes which remains poorly constrained. And yet this combination of processes can occur coincidently during deposition from pyroclastic density currents, in... Read More about Sintering of vesiculating pyroclasts.

Sublithospheric diamond ages and the supercontinent cycle. (2023)
Journal Article
Timmerman, S., Stachel, T., Koornneef, J. M., Smit, K. V., Harlou, R., Nowell, G. M., …Pearson, D. G. (2023). Sublithospheric diamond ages and the supercontinent cycle. Nature, 623, 752-756. https://doi.org/10.1038/s41586-023-06662-9

Subduction related to the ancient supercontinent cycle is poorly constrained by mantle samples. Sublithospheric diamond crystallization records the release of melts from subducting oceanic lithosphere at 300-700 km depths and is especially suited to... Read More about Sublithospheric diamond ages and the supercontinent cycle..

The rise and fall of the Malvinoxhosan (Malvinokaffric) bioregion in South Africa: Evidence for Early-Middle Devonian biocrises at the South Pole (2023)
Journal Article
Penn-Clarke, C. R., & Harper, D. A. (2023). The rise and fall of the Malvinoxhosan (Malvinokaffric) bioregion in South Africa: Evidence for Early-Middle Devonian biocrises at the South Pole. Earth-Science Reviews, 246, Article 104595. https://doi.org/10.1016/j.earscirev.2023.104595

Global reconstructions, inclusive of environments and ecosystems, and biodiversity counts for the Devonian Period are often done so at the expense of high latitude regions given a historical lack of data presented from these areas. This has bearing o... Read More about The rise and fall of the Malvinoxhosan (Malvinokaffric) bioregion in South Africa: Evidence for Early-Middle Devonian biocrises at the South Pole.

Alternating Subplinian and phreatomagmatic phases during the construction of a phonolitic maar-diatreme volcano (Caldera del Rey, Tenerife, Canary Islands) (2023)
Journal Article
Bowers, O., Dávila Harris, P., Winstanley, R., Wadsworth, F. B., & Brown, R. J. (2023). Alternating Subplinian and phreatomagmatic phases during the construction of a phonolitic maar-diatreme volcano (Caldera del Rey, Tenerife, Canary Islands). Journal of Volcanology and Geothermal Research, 443, 107920. https://doi.org/10.1016/j.jvolgeores.2023.107920

The Early Pleistocene, well exposed, Caldera del Rey maar-diatreme volcano, Tenerife, Canary Islands was constructed during a ∼ VEI 4 phonolitic eruption that involved two cycles of magmatic-to-phreatomagmatic activity and resulted in two overlapping... Read More about Alternating Subplinian and phreatomagmatic phases during the construction of a phonolitic maar-diatreme volcano (Caldera del Rey, Tenerife, Canary Islands).

Chemical Oxygen Demand as a Measure of Fluvial Organic Matter Oxidation State (2023)
Journal Article
Worrall, F., Clay, G. D., Howden, N. J. K., & Burt, T. P. (2023). Chemical Oxygen Demand as a Measure of Fluvial Organic Matter Oxidation State. Journal of Geophysical Research: Biogeosciences, 128(10), Article e2022JG007248. https://doi.org/10.1029/2022jg007248

The oxidative ratio (OR) of the terrestrial biosphere is directly related to the size of the terrestrial biosphere carbon sink. In turn, OR of naturally occurring organic matter can be directly related to the oxidation state of the carbon in naturall... Read More about Chemical Oxygen Demand as a Measure of Fluvial Organic Matter Oxidation State.

A Scaling for the Permeability of Loose Magma Mush Validated Using X‐Ray Computed Tomography of Packed Confectionary in 3D and Estimation Methods From 2D Crystal Shapes (2023)
Journal Article
Bretagne, E., Wadsworth, F. B., Vasseur, J., & Dobson, K. J. (2023). A Scaling for the Permeability of Loose Magma Mush Validated Using X‐Ray Computed Tomography of Packed Confectionary in 3D and Estimation Methods From 2D Crystal Shapes. Journal of Geophysical Research: Solid Earth, 128(10), Article e2023JB026795. https://doi.org/10.1029/2023jb026795

Melt percolation through partially molten “mushy” regions of the crust underpins models for magma migration, accumulation, and processes that prime systems for eruption. Knowledge of the hydraulic properties of magma mush, specifically permeability,... Read More about A Scaling for the Permeability of Loose Magma Mush Validated Using X‐Ray Computed Tomography of Packed Confectionary in 3D and Estimation Methods From 2D Crystal Shapes.

Zircon double-dating, trace element and O isotope analysis to decipher late Pleistocene explosive-effusive eruptions from a zoned ocean-island magma system, Ascension Island (2023)
Journal Article
Scarrow, J. H., Schmitt, A. K., Danišík, M., Chamberlain, K. J., Davies, B. V., Rushton, J., …Barclay, J. (2023). Zircon double-dating, trace element and O isotope analysis to decipher late Pleistocene explosive-effusive eruptions from a zoned ocean-island magma system, Ascension Island. Quaternary Science Reviews, 319, Article 108304. https://doi.org/10.1016/j.quascirev.2023.108304

In this first detailed study of zircon from Ascension Island, South Atlantic, we take a novel approach combining trace element and O isotope compositional data with double-dating (disequilibrium 238U–230Th and (U–Th)/He) to decipher timescales and dy... Read More about Zircon double-dating, trace element and O isotope analysis to decipher late Pleistocene explosive-effusive eruptions from a zoned ocean-island magma system, Ascension Island.