Dr. Micha Ruhl
Assistant 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
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
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-
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
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
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
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
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
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
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
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
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
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
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
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]
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
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
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
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
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]
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
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
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
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
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
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
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 TEX
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Micha Ruhl, Carbon cycle changes during the Triassic-Jurassic transition, 1, Utrecht, Netherlands, LPP Contributions Series, 2010, 28pp
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
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
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
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
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
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.Recognition
Representations
External examiner PhD viva: University of Copenhagen, Department of Geosciences and Natural Resource Management
External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates
External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates
External examiner PhD viva: Aarhus University, Denmark
External examiner PhD viva: Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, China
2020 - present Voting member (invited) for the International Union of Geological Sciences (IUGS) International Subcommission on Jurassic Stratigraphy (ISJS)
Memberships
Voting member (invited) for the International Union of Geological Sciences (IUGS) International Subcommission on Jurassic Stratigraphy (ISJS)
Co-PI of the UNESCO International Geoscience Programme (IGCP) Project 739: Mesozoic and Paleogene Hyperthermal Events
Member of UNESCO International Geoscience Programme (IGCP) Project 632: Continental Crises of the Jurassic: Major Extinction Events and Environmental Changes within Lacustrine Ecosystems
Member of UNESCO IGCP Project 652: Reading Geologic Time in Paleozoic Sedimentary Rocks: The Need for an Integrated Stratigraphy
Member of UNESCO IGCP Project 655: Toarcian Oceanic Anoxic Event Impact on Marine Carbon Cycle and Ecosystems
Member of the International Continental Drilling Programme (ICDP) project: Early Jurasssic Earth System & Timescale (JET)
Member of International Association of Sedimentologists (IAS)
Member of European Association of Geochemists (EAG)
Board Member & Treasurer of the Palaeobotanical & Palynological Society Utrecht