Orr, Theresa J., Wurster, Christopher M., Levchenko, Vladimir, Ascough, Philippa L., and Bird, Michael I. (2021) Improved pretreatment method for the isolation and decontamination of pyrogenic carbon for radiocarbon dating using hydrogen pyrolysis. Quaternary Geochronology, 61. 101124.

Ascough, Philippa L., Brock, Fiona, Collinson, Margaret E., Painter, Jon D., Lane, David W., and Bird, Michael (2020) Chemical characteristics of macroscopic pyrogenic carbon following millennial-scale environmental exposure. Frontiers in Environmental Science, 7. 203.

Haig, Jordahna, Ascough, Philippa, Wurster, Christopher M., and Bird, Michael I. (2020) A rapid throughput technique to isolate pyrogenic carbon by hydrogen pyrolysis for stable isotope and radiocarbon analysis. Rapid Communications in Mass Spectrometry, 34 (10). e8737.

Bird, Michael I., McBeath, Anna V., Ascough, Philippa L., Levchenko, Vladimir A., Wurster, Christopher M., Munksgaard, Niels C., Smernik, Ronald J., and Williams, Alan (2017) Loss and gain of carbon during char degradation. Soil Biology & Biochemistry, 106. pp. 80-89.

Tilston, Emma L., Ascough, Philippa L., Garnett, Mark H., and Bird, Michael I. (2016) Quantifying charcoal degradation and negative priming of soil organic matter with a c-14-dead tracer. Radiocarbon, 58 (4). pp. 905-919.

Saiz, G., Bird, M., Wurster, C., Quesada, C.A., Ascough, P., Domingues, T., Schrodt, F., Schwarz, M., Feldpausch, T.R., Veenendaal, E., Djagbletey, G., Jacobsen, G., Hien, F., Compaore, H., Diallo, A., and Lloyd, J. (2015) The influence of C3 and C4 vegetation on soil organic matter dynamics in contrasting semi-natural tropical ecosystems. Biogeosciences, 12. pp. 5041-5059.

Bird, Michael I., Levchenko, Vladimir, Ascough, Philippa L., Meredith, Will, Wurster, Christopher M., Williams, Alan, Tilston, Emma L., Snape, Colin E., and Apperley, David C. (2014) The efficiency of charcoal decontamination for radiocarbon dating by three pre-treatments: ABOX, ABA and hypy. Quaternary Geochronology, 22. pp. 25-32.

Meredith, W., Ascough, P.L., Bird, M.I., Large, D.J., Snape, C.E., Song, J., Sun, Y., and Tilston, E.L. (2013) Direct evidence from hydropyrolysis for the retention of long alkyl moieties in black carbon fractions isolated by acidified dichromate oxidation. Journal of Analytical and Applied Pyrolysis, 103. pp. 232-239.

Bird, Michael I., and Ascough, Phillippa L. (2012) Isotopes in pyrogenic carbon: a review. Organic Geochemistry, 42 (12). pp. 1529-1539.

Meredith, W., Ascough, P.L., Bird, M. I., Large, D. J., Snape, C. E., Sun, Y., and Tilston, E.L. (2012) Assessment of hydropyrolysis as a method for the quantification of black carbon using standard reference materials. Geochimica et Cosmochimica Acta, 97. pp. 131-147.

Ascough, P.L., Bird, M.I., Francis, S.M., Thornton, B., Midwood, A.J., Scott, A.C., and Apperley, D. (2011) Variability in oxidative degradation of charcoal: Influence of production conditions and environmental exposure. Geochimica et Cosmochimica Acta, 75 (9). pp. 2361-2378.

Ascough, Philippa L., Bird, Michael I., Francis, S.M., and Lebl, T (2011) Alkali extraction of archaeological and geological charcoal: evidence for diagenetic degradation and formation of humic acids. Journal of Archaeological Science, 38 (1). pp. 69-78.

Bird, Michael I., Charville-Mort, Peter D.J., Ascough, Philippa L., Wood, Rachel, Higham, Tom, and Apperley, David (2010) Assessment of oxygen plasma ashing as a pre-treatment for radiocarbon dating. Quaternary Geochronology, 5 (4). 435- 442.

Ascough, P.L., Bird, M.I., Meredith, W., Wood, R.E., Snape, C.E., Brock, F., Higham, T.F.G., Large, D.J., and Apperley, D.C. (2010) Hydropyrolysis: implications for radiocarbon pretreatment and characterization of black carbon. Radiocarbon, 52 (2-3). pp. 1336-1350.

Wurster, C.M., McFarlane, D.A., Bird, M.I., Ascough, P., and Athfield, N.B. (2010) Stable isotopes of subfossil bat guano as a long-term environmental archive: insights from a Grand Canyon cave deposit. Journal of Cave and Karst Studies, 72 (2). pp. 111-121.

Ascough, Philippa L., Bird, Michael I., Scott, Andrew C., Collinson, Margaret E., Cohen-Ofri, Illit, Snape, Colin E., and Le Manquais, Katherine (2010) Charcoal reflectance measurements: implications for structural characterization and assessment of diagenetic alteration. Journal of Archaeological Science, 37 (7). pp. 1590-1599.

Ascough, Philippa L., Sturrock, Craig J., and Bird, Michael I. (2010) Investigation of growth responses in saprophytic fungi to charred biomass. Isotopes in Environmental and Health Studies, 46 (1). pp. 64-77.

Wurster, Christopher M., Bird, Michael I., Bull, Ian, Bryant, Charlotte, and Ascough, Philippa (2009) A protocol for radiocarbon dating tropical subfossil cave Guano. Radiocarbon, 51 (3). pp. 977-896.

Ascough, P.L., Bird, M.I., Brock, F., Higham, T.F.G., Meredith, W., Snape, C.E., and Vane, C.H. (2009) Hydropyrolysis as a new tool for radiocarbon pre-treatment and the quantification of black carbon. Quaternary Geochronology, 4 (2). pp. 140-147.

Meredith, W., Ascough, P.L., Snape, C.E., Large, D.J., Bird, M.I., Brock, F., Higham, T.F.G., Wood, R.E., and Vane, C.H. (2009) Hydropyrolysis as a method for radiocarbon pre-treatment, and the quantification of black carbon. Geochimica et Cosmochimica Acta, 73 (13). A872-A872.

Ascough, P.L., Bird, M.I., Wormald, P., Snape, C.E., and Apperley, D. (2008) Influence of production variables and starting material on charcoal stable isotopic and molecular characteristics. Geochimica et Cosmochimica Acta, 72 (24). pp. 6090-6102.

Bird, Michael I., Ascough, Philippa L., Young, Iain M., Wood, Cheryl V., and Scott, Andrew C. (2008) X-ray microtomographic imaging of charcoal. Journal of Archaeological Science, 35 (10). pp. 2698-2706.