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Dr. Micha Ruhl
Associate Professor, Geology

Biography

Personal information:

Dr M. Ruhl, Date of birth: 16 April 1980, Nationality: Dutch Researcher unique identifier: ORCID-ID: 0000-0001-8170-0399; Google-Scholar: Dr Micha Ruhl Website: https://www.tcd.ie/Geology/people/ruhlm/ - www.micharuhl.com Highlights: I have a high international standing within the earth system science community, particularly on studying marine and continental environmental change during past global climatic perturbations using novel geochemical proxies and methods. I have a demonstrated track record in procuring and managing independent research grants, extensive experience supervising and mentoring students and postdoctoral research fellows, and a prolific publication record including invited book chapters in edited volumes and peer-reviewed journal articles in high profile international journals. I lead and participate in several international projects, such as the UNESCO International Geoscience Programmes 739 (Co-PI) and 652, the International Continental Drilling Programmes i) JET (Early Jurassic Earth System and Time, and ii) Colorado Plateau Coring Project 2 (CPCP-2). International recognition for my work is exemplified by the high number of citations relative to peers, frequent invitations to give seminars and key-note lectures at international institutions and conferences, and invitations to serve as Editorial Board member for Geology, and as voting member for the International Union of Geological Sciences' International Subcommission on Jurassic Stratigraphy. I lead the stable-isotope mass spectrometry laboratory at the School of Natural Sciences, at Trinity College Dublin.

Publications and Further Research Outputs

Peer-Reviewed Publications

A. Dickson, E. Idiz, D. Porcelli, R. Celestino, H. Jenkyns, S. Poulton, S.P. Hesselbo, J.N. Hooker, M. Ruhl, No effect of thermal maturity on the Mo - U - Cd- and Zn-isotope compositions of Lower Jurassic organic-rich sediments, Geology, 2022 Journal Article, 2022

Teuntje P. Hollaar, Sarah J. Baker, Stephen P. Hesselbo, Jean-François Deconinck, Luke Mander, Micha Ruhl, Claire M. Belcher, Wildfire enhanced by orbital forcing during periods of past global warmth, Nature Communications Earth & Environment, 2022 Journal Article, 2022

Qing Li, Feng Ding, Micha Ruhl, Yongdong Wang, Ying Li, Lei Yang, Kunzhi Xu, Xiangang Xie, Geochemistry of the Lower Cretaceous limestones in the Eastern Tethys Gyabula Formation (Himalaya, southern Tibet): implications for the depositional environment and tectonic setting, Arabian Journal of Geosciences, 14, 2021, p2353- Journal Article, 2021

Alessandro Menini, Emanuela Mattioli, Stephen P. Hesselbo, Micha Ruhl, Guillaume Suan, Primary v. carbonate production in the Toarcian, a case study from the Llanbedr (Mochras Farm) borehole, Wales, Geological Society, London, Special Publications, 2021, pSP514--2021--19 Journal Article, 2021 DOI

Qing Li, Micha Ruhl, Yong-Dong Wang, Xiao-Ping Xie, Peng-Cheng An, Yuan-Yuan Xu, Response of Carnian Pluvial Episode evidenced by organic carbon isotopic excursions from western Hubei, South China, Palaeoworld, 2021 Journal Article, 2021 DOI

Alexander J. Dickson, Hugh C. Jenkyns, Erdem Idiz, Tim C. Sweere, Melissa J. Murphy, Sander H. J. M. van den Boorn, Micha Ruhl, James S. Eldrett, Donald Porcelli, New Constraints on Global Geochemical Cycling During Oceanic Anoxic Event 2 (Late Cretaceous) From a 6-Million-year Long Molybdenum-Isotope Record, Geochemistry, Geophysics, Geosystems,, 22, (e2020GC009246), 2021 Journal Article, 2021 TARA - Full Text DOI

R.L. Silva, L.V. Duarte, G.D. Wach, M. Ruhl, D. Sadki, J.J. G"omez, S.P. Hesselbo, Weimu Xu, D. O'Connor, B. Rodrigues, J.G. Mendonça Filho, An Early Jurassic (Sinemurian-Toarcian) stratigraphic framework for the occurrence of Organic Matter Preservation Intervals (OMPIs), Earth-Science Reviews, 221, (103780), 2021 Journal Article, 2021 TARA - Full Text DOI

Teuntje P. Hollaar, Sarah J. Baker, Stephen P. Hesselbo, Jean-François Deconinck, Luke Mander, Micha Ruhl, Claire M. Belcher, Wildfire activity enhanced during phases of maximum orbital eccentricity and precessional forcing in the Early Jurassic, Communications Earth & Environment, 2021 Journal Article, 2021 DOI

Ricardo L. Silva, Micha Ruhl, Cillian Barry, Matías Reolid, Wolfgang Ruebsam, Pacing of late Pliensbachian and early Toarcian carbon cycle perturbations and environmental change in the westernmost Tethys (La Cerradura Section, Subbetic zone of the Betic Cordillera, Spain), Geological Society, London, Special Publications, 2021, pSP514--2021--27 Journal Article, 2021 DOI

Weimu Xu, Johan W. H. Weijers, Micha Ruhl, Erdem F. Idiz, Hugh C. Jenkyns, James B. Riding, Olga Gorbanenko, Stephen P. Hesselbo, Molecular and petrographical evidence for lacustrine environmental and biotic change in the palaeo-Sichuan mega-lake (China) during the Toarcian Oceanic Anoxic Event, Geological Society, London, Special Publications, 2021, pSP514--2021--2 Journal Article, 2021 DOI

Kovács, E.B., Ruhl, M., Demény, A., Fórizs, I., Hegyi, I., Horváth-Kostka, Z.R., Móricz, F., Vallner, Z., Pálfy, J., Mercury anomalies and carbon isotope excursions in the western Tethyan Cs"vár section support the link between CAMP volcanism and the end-Triassic extinction, Global and Planetary Change, 194, 2020 Journal Article, 2020 DOI

Rizzi, M., Thibault, N., Ullmann, C.V., Ruhl, M., Olsen, T.K., Moreau, J., Clémence, M.-E., Mette, W., Korte, C., Sedimentology and carbon isotope stratigraphy of the Rhaetian Hochalm section (Late Triassic, Austria), Global and Planetary Change, 191, 2020 Journal Article, 2020 DOI

Li, L., Wang, Y., Kürschner, W.M., Ruhl, M., Vajda, V., Palaeovegetation and palaeoclimate changes across the Triassic"Jurassic transition in the Sichuan Basin, China, Palaeogeography, Palaeoclimatology, Palaeoecology, 556, 2020 Journal Article, 2020 DOI

Sweere, T.C., Dickson, A.J., Jenkyns, H.C., Porcelli, D., Ruhl, M., Murphy, M.J., Idiz, E., van den Boorn, S.H.J.M., Eldrett, J.S., Henderson, G.M., Controls on the Cd-isotope composition of Upper Cretaceous (Cenomanian"Turonian) organic-rich mudrocks from south Texas (Eagle Ford Group), Geochimica et Cosmochimica Acta, 287, 2020, p251-262 Journal Article, 2020 DOI

The Jurassic Period in, editor(s)Felix M. Gradstein James G. Ogg Mark D. Schmitz Gabi M. Ogg , Geological Time Scale 2020, Elsevier, Elsevier, 2020, [S.P. Hesselbo, J.G. Ogg, M. Ruhl] Book Chapter, 2020 URL TARA - Full Text

John N. Hooker, Micha Ruhl, Alexander J. Dickson, Lars N. Hansen, Erdem Idiz, Stephen P. Hesselbo, Joe Cartwright, Shale anisotropy and natural hydraulic fracture propagation: An example from the Jurassic (Toarcian) Posidonienschiefer, Germany, Journal of Geophysical Research: Solid Earth, 2020 Journal Article, 2020

Ruhl, M., Hesselbo, S.P., Al-Suwaidi, A., Jenkyns, H.C., Damborenea, S.E., Manceñido, M.O., Storm, M., Mather, T.A., Riccardi, A.C., On the onset of Central Atlantic Magmatic Province (CAMP) volcanism and environmental and carbon-cycle change at the Triassic"Jurassic transition (Neuquén Basin, Argentina), Earth-Science Reviews, 208, 2020 Journal Article, 2020 DOI

Hesselbo, S.P., Little, C.T.S., Ruhl, M., Thibault, N., Ullmann, C.V., Comments on "Paleosalinity determination in ancient epicontinental seas: A case study of the T-OAE in the Cleveland Basin (UK)" by Remirez, M. N. and Algeo, T. J., Earth-Science Reviews, 208, 2020 Journal Article, 2020 DOI

Storm, M.S., Hesselbo, S.P., Jenkyns, H.C., Ruhl, M., Ullmann, C.V., Xu, W., Leng, M.J., Riding, J.B., Gorbanenko, O., Orbital pacing and secular evolution of the Early Jurassic carbon cycle, Proceedings of the National Academy of Sciences of the United States of America, 117, (8), 2020, p3974-3982 Journal Article, 2020 DOI

Chemostratigraphy Across the Triassic-Jurassic Boundary in, editor(s)Alcides N. Sial, Claudio Gaucher, Muthuvairavasamy Ramkumar, and Valderez Pinto Ferreira , Chemostratigraphy Across Major Chronological Boundaries, USA, John Wiley & Sons, Inc, 2019, pp185-2010 , [Christoph Korte, Micha Ruhl, József Pálfy, Clemens Vinzenz Ullmann, Stephen Peter Hesselbo] Book Chapter, 2019 DOI TARA - Full Text

Sinnesael, M., De Vleeschouwer, D., Zeeden, C., Batenburg, S.J., Da Silva, A.-C., de Winter, N.J., Dinarès-Turell, J., Drury, A.J., Gambacorta, G., Hilgen, F.J., Hinnov, L.A., Hudson, A.J.L., Kemp, D.B., Lantink, M.L., Laurin, J., Li, M., Liebrand, D., Ma, C., Meyers, S.R., Monkenbusch, J., Montanari, A., Nohl, T., Pälike, H., Pas, D., Ruhl, M., Thibault, N., Vahlenkamp, M., Valero, L., Wouters, S., Wu, H., Claeys, P., The Cyclostratigraphy Intercomparison Project (CIP): consistency, merits and pitfalls, Earth-Science Reviews, 199, 2019 Journal Article, 2019 DOI

Percival, L.M.E., Jenkyns, H.C., Mather, T.A., Dickson, A.J., Batenburg, S.J., Ruhl, M., Hesselbo, S.P., Barclay, R., Jarvis, I., Robinson, S.A., Woelders, L., Does large igneous province volcanism always perturb the mercury cycle? Comparing the records of Oceanic Anoxic Event 2 and the end-cretaceous to other Mesozoic events, American Journal of Science, 318, (8), 2018, p799-860 Journal Article, 2018 DOI

LAWRENCE M.E. PERCIVAL, HUGH C. JENKYNS, TAMSIN A. MATHER, ALEXANDER J. DICKSON, SIETSKE J. BATENBURG, MICHA RUHL, STEPHEN P. HESSELBO, RICHARD BARCLAY, IAN JARVIS, STUART A. ROBINSON, LINEKE WOELDERS, DOES LARGE IGNEOUS PROVINCE VOLCANISM ALWAYS PERTURB THE MERCURY CYCLE? COMPARING THE RECORDS OF OCEANIC ANOXIC EVENT 2 AND THE END-CRETACEOUS TO OTHER MESOZOIC EVENTS, American Journal of Science, 318, 2018, p799 - 860 Journal Article, 2018 TARA - Full Text DOI

Xu, W., Ruhl, M., Jenkyns, H.C., Leng, M.J., Huggett, J.M., Minisini, D., Ullmann, C.V., Riding, J.B., Weijers, J.W.H., Storm, M.S., Percival, L.M.E., Tosca, N.J., Idiz, E.F., Tegelaar, E.W., Hesselbo, S.P., Evolution of the Toarcian (Early Jurassic) carbon-cycle and global climatic controls on local sedimentary processes (Cardigan Bay Basin, UK), Earth and Planetary Science Letters, 484, 2018, p396-411 Journal Article, 2018 DOI

Hinnov, L.A., Ruhl, M., Hesselbo, S.P., Reply to the Comment on "Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations" [Earth Planet. Sci. Lett. 455 (2016) 149"165], Earth and Planetary Science Letters, 481, 2018, p415-419 Journal Article, 2018

Weimu Xu, Conall Mac Niocaill, Micha Ruhl, Hugh C. Jenkyns, James B. Riding, Stephen P. Hesselbo, Magnetostratigraphy of the Toarcian Stage (Lower Jurassic) of the Llanbedr (Mochras Farm) Borehole, Wales: basis for a global standard and implications for volcanic forcing of palaeoenvironmental change, Journal of the Geological Society, 175, (4), 2018, p594--604 Journal Article, 2018

Robinson, S.A., Ruhl, M., Astley, D.L., Naafs, B.D.A., Farnsworth, A.J., Bown, P.R., Jenkyns, H.C., Lunt, D.J., O'Brien, C., Pancost, R.D., Markwick, P.J., Early Jurassic North Atlantic sea-surface temperatures from TEX86 palaeothermometry, Sedimentology, 64, (1), 2017, p215-230 Journal Article, 2017

Alexander J. Dickson, Benjamin C. Gill, Micha Ruhl, Hugh C. Jenkyns, Donald Porcelli, Erdem Idiz, Timothy W. Lyons, Sander H. J. M. van den Boorn, Molybdenum-isotope chemostratigraphy and paleoceanography of the Toarcian Oceanic Anoxic Event (Early Jurassic), Paleoceanography, 2017 Journal Article, 2017

Percival, L.M.E., Ruhl, M., Hesselbo, S.P., Jenkyns, H.C., Mather, T.A., Whiteside, J.H., Mercury evidence for pulsed volcanism during the end-Triassic mass extinction, Proceedings of the National Academy of Sciences of the United States of America, 114, (30), 2017, p7929-7934 Journal Article, 2017

Jenkyns, H.C., Dickson, A.J., Ruhl, M., van den Boorn, S.H.J.M., Basalt-seawater interaction, the Plenus Cold Event, enhanced weathering and geochemical change: deconstructing Oceanic Anoxic Event 2 (Cenomanian"Turonian, Late Cretaceous), Sedimentology, 64, (1), 2017, p16-43 Journal Article, 2017

Thibault, N., Ruhl, M., Ullmann, C.V., Korte, C., Kemp, D.B., Gröcke, D.R., Hesselbo, S.P., The wider context of the Lower Jurassic Toarcian oceanic anoxic event in Yorkshire coastal outcrops, UK, Proceedings of the Geologists' Association, 2017 Journal Article, 2017

Korte, C., Thibault, N., Ullmann, C.V., Clémence, M.-E., Mette, W., Olsen, T.K., Rizzi, M., Ruhl, M., Brachiopod biogeochemistry and isotope stratigraphy from the Rhaetian Eiberg section in Austria: Potentials and limitations, Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen, 284, (2), 2017, p117-138 Journal Article, 2017

Xu, W., Ruhl, M., Hesselbo, S.P., Riding, J.B., Jenkyns, H.C., Orbital pacing of the Early Jurassic carbon cycle, black-shale formation and seabed methane seepage, Sedimentology, 64, (1), 2017, p127-149 Journal Article, 2017

Xu, W., Ruhl, M., Jenkyns, H.C., Hesselbo, S.P., Riding, J.B., Selby, D., Naafs, B.D.A., Weijers, J.W.H., Pancost, R.D., Tegelaar, E.W., Idiz, E.F., Carbon sequestration in an expanded lake system during the Toarcian oceanic anoxic event, Nature Geoscience, 10, (2), 2017, p129-134 Journal Article, 2017

J. D. Scaife, M. Ruhl, A. J. Dickson, T. A. Mather, H. C. Jenkyns, L. M. E. Percival, S. P. Hesselbo, J. Cartwright, J. S. Eldrett, S. C. Bergman, D. Minisini, Sedimentary Mercury Enrichments as a Marker for Submarine Large Igneous Province Volcanism? Evidence From the Mid-Cenomanian Event and Oceanic Anoxic Event 2 (Late Cretaceous), Geochemistry, Geophysics, Geosystems, 2017 Journal Article, 2017

Micha Ruhl, Stephen P. Hesselbo, Linda Hinnov, Hugh C. Jenkyns, Weimu Xu, James B. Riding, Marisa Storm, Daniel Minisini, Clemens V. Ullmann, Melanie J. Leng, Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations, Earth and Planetary Science Letters, 455, 2016, p149--165 Journal Article, 2016

Percival, L.M.E., Witt, M.L.I., Mather, T.A., Hermoso, M., Jenkyns, H.C., Hesselbo, S.P., Al-Suwaidi, A.H., Storm, M.S., Xu, W., Ruhl, M., Globally enhanced mercury deposition during the end-Pliensbachian extinction and Toarcian OAE: A link to the Karoo-Ferrar Large Igneous Province, Earth and Planetary Science Letters, 428, 2015, p267-280 Journal Article, 2015

Korte, C., Hesselbo, S.P., Ullmann, C.V., Dietl, G., Ruhl, M., Schweigert, G., Thibault, N., Jurassic climate mode governed by ocean gateway, Nature Communications, 6, 2015 Journal Article, 2015

Ullmann, C.V., Thibault, N., Ruhl, M., Hesselbo, S.P., Korte, C., Effect of a Jurassic oceanic anoxic event on belemnite ecology and evolution, Proceedings of the National Academy of Sciences of the United States of America, 111, (28), 2014, p10073-10076 Journal Article, 2014

Hüsing, S.K., Beniest, A., van der Boon, A., Abels, H.A., Deenen, M.H.L., Ruhl, M., Krijgsman, W., Astronomically-calibrated magnetostratigraphy of the Lower Jurassic marine successions at St. Audrie's Bay and East Quantoxhead (Hettangian-Sinemurian; Somerset, UK), Palaeogeography, Palaeoclimatology, Palaeoecology, 403, 2014, p43-56 Journal Article, 2014

Hesselbo, S.P., Bjerrum, C.J., Hinnov, L.A., MacNiocaill, C., Miller, K.G., Riding, J.B., Van De Schootbrugge, B., Abels, H., Belcher, C., Blau, J., Browning, J., Cartwright, J., Condon, D., Daines, S., Damborenea, S., Dickson, A., Fraguas, A., Hilgen, F., Hooker, J., Huang, C., Huesing, S., Jenkyns, H., Korte, C., Krijgsman, W., Lenton, T., Little, C., Manceñido, M., Mattioli, E., Meister, C., Morgan, R., Newton, R., Pálfy, J., Pienkowski, G., Poulton, S., Riccardi, A., Robinson, A., Ruhl, M., Suan, G., Smith, N., Thibault, N., Ullmann, C., Wignall, P., Williford, K., Wonik, T., Xu, W., Mochras borehole revisited: A new global standard for Early Jurassic earth history, Scientific Drilling, (16), 2013, p81-91 Journal Article, 2013

Hillebrandt, A.V., Krystyn, L., Kürschner, W.M., Bonis, N.R., Ruhl, M., Richoz, S., Schobben, M.A., Urlichs, M., Bown, P.R., Kment, K., McRoberts, C.A., Simms, M., Tomãsových, A., The global stratotype sections and point (GSSP) for the base of the jurassic system at kuhjoch (Karwendel Mountains, Northern Calcareous Alps, Tyrol, Austria), Episodes, 36, (3), 2013, p162-198 Journal Article, 2013

Dahl, T.W., Ruhl, M., Hammarlund, E.U., Canfield, D.E., Rosing, M.T., Bjerrum, C.J., Tracing euxinia by molybdenum concentrations in sediments using handheld X-ray fluorescence spectroscopy (HHXRF), Chemical Geology, 360-361, 2013, p241-251 Journal Article, 2013

Deenen, M.H.L., Krijgsman, W., Ruhl, M., The quest for chron E23r at Partridge Island, bay of Fundy, Canada: CAMP emplacement postdates the end-Triassic extinction event at the North American craton, Canadian Journal of Earth Sciences, 48, (8), 2011, p1282-1291 Journal Article, 2011

Ruhl, M., Kürschner, W.M., Multiple phases of carbon cycle disturbance from large igneous province formation at the Triassic-Jurassic transition, Geology, 39, (5), 2011, p431-434 Journal Article, 2011

Ruhl, M., Bonis, N.R., Reichart, G.-J., Sinninghe Damsté, J.S., Kürschner, W.M., Atmospheric carbon injection linked to end-Triassic mass extinction, Science, 333, (6041), 2011, p430-434 Journal Article, 2011

Bonis, N.R., Ruhl, M., Kürschner, W.M., Climate change driven black shale deposition during the end-Triassic in the western Tethys, Palaeogeography, Palaeoclimatology, Palaeoecology, 290, (1-4), 2010, p151-159 Journal Article, 2010

Ruhl, M., Veld, H., Kürschner, W.M., Sedimentary organic matter characterization of the Triassic-Jurassic boundary GSSP at Kuhjoch (Austria), Earth and Planetary Science Letters, 292, (1-2), 2010, p17-26 Journal Article, 2010

Micha Ruhl, Carbon cycle changes during the Triassic-Jurassic transition, 1, Utrecht, Netherlands, LPP Contributions Series, 2010, 28pp Book, 2010

Bonis, N.R., Ruhl, M., Kürschner, W.M., Milankovitch-scale palynological turnover across the Triassic-Jurassic transition at St. Audrie's Bay, SW UK, Journal of the Geological Society, 167, (5), 2010, p877-888 Journal Article, 2010

Deenen, M.H.L., Ruhl, M., Bonis, N.R., Krijgsman, W., Kuerschner, W.M., Reitsma, M., van Bergen, M.J., A new chronology for the end-Triassic mass extinction, Earth and Planetary Science Letters, 291, (1-4), 2010, p113-125 Journal Article, 2010

Ruhl, M., Deenen, M.H.L., Abels, H.A., Bonis, N.R., Krijgsman, W., Kürschner, W.M., Astronomical constraints on the duration of the early Jurassic Hettangian stage and recovery rates following the end-Triassic mass extinction (St Audrie's Bay/East Quantoxhead, UK), Earth and Planetary Science Letters, 295, (1-2), 2010, p262-276 Journal Article, 2010

Ruhl, M., Kürschner, W.M., Krystyn, L., Triassic-Jurassic organic carbon isotope stratigraphy of key sections in the western Tethys realm (Austria), Earth and Planetary Science Letters, 281, (3-4), 2009, p169-187 Journal Article, 2009

Hillebrandt, A. v., Krystyn, L., Kürschner, W.M., Bonis, N.R., Ruhl, M., Urlichs, M., with contributions by Bown, P., Kment, K., McRoberts, C., Simms, M., Tomasovych, A., A candidate GSSP for the base of the Jurassic in the Northern Calcareous Alps (Kuhjoch section; Karwendel Mountains, Tyrol, Austria), International Subcommission on Jurassic Stratigraphy Newsletter , 34, (1), 2007, p2 - 20 Journal Article, 2007

Research Expertise

Description

Key-words: Palaeoclimatology, Mass extinctions, Global Change Events, Sedimentary Geochemistry, Integrated Stratigraphy I apply sedimentological, stratigraphical (chemo-, bio-, cyclo-, magneto), and low-temperature geochemical methodologies to constrain causes and consequences of past global climatic & environmental change events, mass extinctions, and changing depositional environments. - Past Climates & perturbations to the global carbon cycle: Earth's climate and the environment have changed on multiple temporal (10E2-10E7 yrs) and geographical (local"global) scales. My research aims to constrain the (causative) internal and external forcing mechanisms and positive and negative feedback processes that controlled Earth's climate and environment. In particular, I am interested in understanding (1) how Large Igneous Province (LIP) volcanism impacted on global climate and environments, global biodiversity (mass extinction/evolution) and changes in global (bio)geochemical cycles; (2) how external processes, such as astronomical forcing impacted on global climates, environments and local sedimentary depositional conditions; and (3) background conditions in the global climate & environment and global carbon cycling. --> For this research I study some for the largest climate change & mass extinction events in Earth history. - Depositional environments: My research aims to constrain the physical, biological and geochemical processes that control sediment deposition and carbon sequestration in marine and terrestrial (including lacustrine/lake) sedimentary basins, and how these are affected by climatic and environmental change on local"global scales. --> For this I study for example the processes that controlled carbon drawdown and preservation during past global Oceanic Anoxic Events (OAEs). - Geo- and Astrochronology: My research improves the geological timescale through absolute and relative dating of sedimentary deposits, with the aim to constrain the rate of change in physical, biological and geochemical parameters recorded therein, including changes in the rate of past extinctions & evolution, the rate of carbon release and sequestration associated with past climate change events, etc. This research is conducted through major international research programmes, such as (i) the UNESCO International Geoscience Programme (IGCP), for which I served as Co-PI and member of several successful past and present projects, (ii) the International Continental Drilling Programme (ICDP), for which I serve as member of current projects and PI and Co-PI of current drilling proposals, and (iii) the International Ocean Discovery Programme (IODP), for which I served as land-based project participant.

Keywords

Climate Change; mass extinction; ocean anoxia; past climate change; Stratigraphy

Recognition

Representations

External examiner PhD viva: University of Copenhagen, Department of Geosciences and Natural Resource Management 2022

External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates 2021

External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates 2021

External examiner PhD viva: Aarhus University, Denmark 2020

External examiner PhD viva: Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, China 2019

2020 - present Voting member (invited) for the International Union of Geological Sciences (IUGS) International Subcommission on Jurassic Stratigraphy (ISJS) 2020

Memberships

Voting member (invited) for the International Union of Geological Sciences (IUGS) International Subcommission on Jurassic Stratigraphy (ISJS) 2020 – 2025

Co-PI of the UNESCO International Geoscience Programme (IGCP) Project 739: Mesozoic and Paleogene Hyperthermal Events 2021 – 2025

Member of UNESCO International Geoscience Programme (IGCP) Project 632: Continental Crises of the Jurassic: Major Extinction Events and Environmental Changes within Lacustrine Ecosystems 2014 – 2018

Member of UNESCO IGCP Project 652: Reading Geologic Time in Paleozoic Sedimentary Rocks: The Need for an Integrated Stratigraphy 2017 – 2021

Member of UNESCO IGCP Project 655: Toarcian Oceanic Anoxic Event Impact on Marine Carbon Cycle and Ecosystems 2016 – 2019

Member of the International Continental Drilling Programme (ICDP) project: Early Jurasssic Earth System & Timescale (JET) 2017 – Ongoing

Member of International Association of Sedimentologists (IAS) 2020 – ongoing

Member of European Association of Geochemists (EAG) 2020 – ongoing

Board Member & Treasurer of the Palaeobotanical & Palynological Society Utrecht 2006 – 2009