2012 – 2017: Department of Earth Sciences, University of Oxford
2009-2012: School of Earth and Space Sciences, Peking University, China, MSc
2005-2009: School of Earth and Space Sciences, Peking University, China, BSc
I successfully completed my PhD viva on 17th Nov 2016. My research topic was “Carbon burial in continental settings: lacustrine records of major environmental changes in deep time and their depositional and diagenetic consequences.” I mainly focused on the lacustrine shale deposits in the Mesozoic (going back to mid-Permian) of China. I did a range of laboratory and field works in the area of sedimentology, stratigraphy, isotope and organic geochemistry, and palaeobotany. The ultimate aim was to test the extent to which major climatic and palaeoceanographic events known from the marine realm, such as the Permian-Triassic boundary event, Triassic-Jurassic boundary event or Mesozoic Oceanic Anoxic Events, had a predictable impact on depositional and diagenetic history in large inland lakes.
Supervisors: Stephen Hesselbo, Hugh Jenkyns, and Shell supervisors
Xu, W., Ruhl, M., Jenkyns, H.C., Huggett, J.M., Idiz, E., Leng, M.J., Minisini, D., Percival, L.M.E., Riding, J.B., Storm, M.S., Tegelaar, E.W., Tosca, N.J., Ullmann, C.V., Weijers, J.W.H., Hesselbo, S.P. (2018) Evolution of the Early Jurassic Toarcian carbon-cycle and global climatic controls on local sedimentary processes (Cardigan Bay Basin, UK). Earth and Planetary Science Letters, 484, 396–411.
Xu, W., Ruhl, M., Jenkyns, H., Hesselbo, S.P., Riding, J.B., Selby, D., Naafs, B.D.A., Weijers, J.W.H., Pancost, R.D., Tegelaar, E.W. and Idiz, E.F. (2017) Carbon sequestration in an expanded lake system during the Toarcian oceanic anoxic event. Nature Geoscience, DOI: 10.1038/NGEO2871
Xu, W., Ruhl, M., Hesselbo, S.P., Riding, J.B. and Jenkyns, H., 2017. Orbital pacing of the Early Jurassic carbon cycle, black-shale formation and seabed methane seepage. Sedimentology (2017) 64, 127–149, doi: 10.1111/sed.12329
Ruhl, M., Hesselbo, S.P., Hinnov, L., Jenkyns, H.C., Xu, W., Riding, J.B., Storm, M., Minisini, D., Ullmann, C.V. and Leng, M.J (2016). Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations. Earth and Planetary Science Letters, 455, 149–165.