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M. Meijers Mountains

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Dr. Maud Meijers

6-2.10: EARTH SURFACE PROCESSES AND PALEOCLIMATE DYNAMICS 
6-2.11: STABLE ISOTOPE PALEOCLIMATE RECONSTRUCTIONS

I am a geologist who uses stable isotope geochemistry to quantify paleoelevations of mountain ranges, as well as to reconstruct continental paleoenvironments. I establish the necessary chronological framework using magnetostratigraphy and 40Ar/39Ar geochronology. My goal is to link tectonic processes to changes in paleoenvironmental patterns (vegetation, hydrology, climate, seasonality). I work within the ‘Earth Surface Processes and Paleoclimate’ group of Andreas Mulch.

CURRENT RESEARCH PROJECTS

The Neogene paleoaltimetry of central Anatolia 
I employ stable isotope paleoaltimetry to reconstruct central Anatolian topography with the ultimate goal of identifying mechanism(s) of surface uplift as a result of mantle versus crustal processes. Results show that the southern Central Anatolian Plateau (CAP) margin reached similar-to-present elevations of ~2 km by 5 Ma.

Collaborators: D. Whitney (U Minnesota), G. Brocard (U Sydney), C. Teyssier (U Minnesota)

Neogene ecosystems of the present-day Central Anatolian Plateau (CAP)
Stable isotope geochemistry in fluvio-lacustrine sedimentary systems provides information on lake hydrology, as well as on paleoenvironment and paleoclimate. Many of the lakes in the CAP area exhibit evidence for an open hydrology, therefore indicating they were either outward draining (Black Sea, Mediterranean) or into a terminal lake.
Soil carbonates provide a proxy material for paleovegetation reconstructions. Large variations in stable carbon isotope values indicate the dominance of C4 over C3 carbon fixation in central Anatolia over certain periods in the geological past.
More recently, I have started to work on mammal tooth enamel from mammal fossil localities in central Anatolia, which provide a means of reconstructing paleodiet and seasonality. The variation in mammalian traits over geological time within nearby mammal localities suggests significant changes in paleohabitats and therefore vegetation and diet.

Collaborators: O. Başoğlu (Gazi U), F. Kaya (U Helsinki), C. Pehlevan (Nevşehir U)

Geochronology of the Central Anatolian Plateau
For many of the fluvio-lacustrine Anatolian basins in which the proxy materials were sampled, I establish new age constraints by combining magnetostratigraphy, 40Ar/39Ar geochronology and existing mammal stratigraphy. The obtained age framework for the studied basins allows the paleoaltimetric and paleoenvironmental data to be put in a spatio-temporal framework.

Collaborators: C. Langereis (Utrecht U), J. Feinberg (U Minnesota), M. Cosca (USGS)

Mountain uplift and biodiversity in Anatolia
The world’s mountain ranges have long been recognized as biodiversity hotspots. In order to relate mountain uplift and environmental changes to biodiversity, I work with macroecologists and macroevolutionary biologists. Paleogeography, mammal diversity, dissimilarity and turnover, as well as paleovegetation and paleoclimate data are being combined to assess the effect of mountain uplift on biodiversity for a case study in Anatolia.

Collaborators: S. Huang, S. Fritz (both Senckenberg BiK-F)

PAST RESEARCH

Plate tectonic reconstructions and the restoration of the geometries of mountain belts in the greater Black Sea region
Rotational paleomagnetic studies led to the restoration of the original geometries of the Pontides (Turkey) and Lesser Causasus (Armenia, Georgia) orogens, as well as the Central Anatolian Crystalline Complex (Turkey). Using paleomagnetism, I produced plate tectonic reconstructions for Baltica, the southern Eurasian margin (Crimea, Pontides) and the South Armenian Block. The remagnetized nature of (mostly) marine carbonates caught my special attention. I also examined the Jurassic paleo-subduction zone configuration of the Black Sea region based on 40Ar/39Ar dating and the geochemical analysis of Crimean volcanic rocks.

SHORT CV

Education
Utrecht University, Netherlands, Geology/Geophysics PhD, 2010
Utrecht University, Netherlands, Earth Sciences MSc, 2005
Utrecht University, Netherlands, Earth Sciences BSc, 2002

Professional experience
2016 – Present: Research Scientist, Senckenberg Biodiversity and Climate Research Center (BiK-F), Frankfurt, Germany
2012 – 2015: Postdoctoral Associate, University of Minnesota, USA, NSF Continental Dynamics – Central Anatolian Tectonics (CD-CAT) project
2010 – 2012: Henri Poincaré Postdoctoral Fellow, Université de Nice – Sophia Antipolis, France, ‘Paleomagnetism of the Armenian Block and its foreland: constraints on Tethyan plate reconstructions and oroclinal bending during the Phanerozoic’

Publications
Google Scholar
Orcid ID

Meijers, M.J.M., Peynircioglu, A.A., Cosca, M.A., Brocard, G.Y., Whitney, D., Langereis, C.G., Mulch, A., 2018. Climate stability in central Anatolia during the Messinian Salinity Crisis. Palaeogeography, Palaeoclimatology, Palaeoecology 498, 53-67, doi:10.1016/j.palaeo.2018.03.001

Meijers, M.J.M., Brocard, G.Y., Cosca, M.A., Lüdecke, T., Teyssier, C., Whitney, D., Mulch, A, 2018. Rapid late Miocene surface uplift of the Central Anatolian Plateau margin. Earth and Planetary Science Letters 497, 29-41, doi:10.1016/j.epsl.2018.05.040

Meijers, M.J.M., Strauss, B., Özkaptan, M., Feinberg, J., Mulch, A., Whitney, D.L., N. Kaymakcý, 2016. Age and paleoenvironmental reconstruction of partially remagnetized lacustrine sedimentary rocks (Oligocene Aktoprak basin, central Anatolia, Turkey). Geochemistry, Geophysics, Geosystems 17, 914-939, doi:10.1002/2015GC006209

Rolland, Y., Hässig, M., Bosch, D., Meijers, M.J.M., Sosson, M., Bruguier, O., Adamia, Sh., Sadradze, N., 2016. A review of the plate convergence history of the East Anatolia-Transcaucasus region during the Variscan: insights from the Georgian basement and its connection to the Eastern Pontides. Journal of Geodynamics 96, 131-145, doi:10.1016/j.jog.2016.03.003.

Sosson, M., Stephenson, R., Sheremet, Y., Rolland, Y., Adamia, S., Melkonian, R., Kangarlý, T., Yegorova, T., Avagyan, A., Galoyan, G., Danelian, T., Hässig, M., Meijers, M.J.M., Müller, C., Sahakyan, L., Sadradze, N., Alania, V., Enukidze, O., Mosar, J., 2016. The Eastern Black Sea-Caucasus region during the Cretaceous: New evidence to constrain its tectonic evolution. Comptes Rendus Géosciences 348(1), 23-32, doi:10.1016/j.crte.2015.11.002

Meijers, M.J.M., Smith, B., Pastor Galán, D., Degenaar, R., Sadradze, N., Adamia, Sh., Sahakyan, L., Avagyan, A., Sosson, M., Rolland, Y., Langereis, C.G., Müller, C., 2015. Progressive orocline formation in the Eastern Pontides–Lesser Caucasus. In: Sosson, M., Stephenson, R.A., Adamia, S.A., (Eds), Tectonic Evolution of the Eastern Black Sea and Caucasus. Geological Society, London, Special Publications 428, 117-143, doi:10.1144/SP428.8

Van der Boon, A., Kuiper, K.F., Villa, G., Renema, W., Meijers, M.J.M., Langereis, C.G., Aliyeva, E., Krijgsman, W., 2015. Onset of Maikop sedimentation and cessation of Eocene arc volcanism in the Talysh Mountains, Azerbaijan. In: Sosson, M., Stephenson, R.A., Adamia, S.A., (Eds), Tectonic Evolution of the Eastern Black Sea and Caucasus. Geological Society, London, Special Publications 428, 145-169, doi:10.1144/SP428.3

Meijers, M.J.M., Smith, B., Kirscher, U., Mensink, M., Sosson, M., Rolland, Y., Grigoryan, A., Sahakyan, L., Avagyan, A., Langereis, C.G., Müller, C., 2015. A paleolatitude reconstruction of the South Armenian Block since the late Cretaceous: constraints on the Tethyan realm. Tectonophysics, 644–645, 197–219, doi: 10.1016/j.tecto.2015.01.012

Haldan, M.M., Meijers, M.J.M., Langereis, C.G., Larsen, B.T., Heyer, H., 2014. New palaeomagnetic results from the Oslo Graben, a Permian Superchron lava province. Geophysical Journal International, 199(3), 1554-1571, doi:10.1093/gji/ggu351

Lefebvre, C., Meijers, M.J.M., Kaymakci, N., Peynircioglu, A., Langereis, C.G. & van Hinsbergen, D.J. J., 2013. Reconstructing the geometry of central Anatolia during the late Cretaceous: Large-scale Cenozoic rotations and deformation between the Pontides and Taurides. Earth and Planetary Science Letters, 366, 83-98, doi:10.1016/j.epsl.2013.01.003

Gülyüz, E., Kaymakci, N., Meijers, M.J.M., van Hinsbergen, D.J.J., Lefebvre, C., Vissers, R.L.M., Hendriks, B.W.H. & Peynircioglu, A. A., 2013. Late Eocene evolution of the Çiçekdaðý Basin (central Turkey): Syn-sedimentary compression during microcontinent–continent collision in central Anatolia. Tectonophysics, 602, 286-299, doi:10.1016/j.tecto.2012.07.003

Meijers, M.J.M., Van Hinsbergen, D.J.J., Dekkers, M.J., Altiner, D., Kaymakci, N., Langereis, C.G., 2011. Pervasive Palaeogene remagnetization of the central Taurides fold-and-thrust belt (southern Turkey) and implications for rotations in the Isparta Angle. Geophysical Journal International, 184, 1090-1112, doi:10.1111/j.1365-246X.2010.04919.x

Dupont-Nivet, G., Lippert, P., van Hinsbergen, D.J.J., Meijers, M.J.M. and Kapp, P., 2010. Paleolatitude and age of the Indo-Asia collision. Geophysical Journal International, 182, 1189-1198, doi:10.1111/j.1365-246X.2010.04697.x

Meijers, M.J.M., 2010. Tethyan evolution of the Black Sea region since the Paleozoic: a paleomagnetic approach (PhD thesis Utrecht University). Geologica Ultraiectina, 319, http://dspace.library.uu.nl/handle/1874/41048

Meijers, M.J.M., Hamers, M.F., Van Hinsbergen, D.J.J., Van der Meer, D.G., Kitchka, A., Langereis, C.G. and Stephenson, R.A., 2010. New late Paleozoic paleopoles from the Donbas Foldbelt (Ukraine): implications for the Pangea A vs. B controversy. Earth and  Planetary Science Letters, 297, 18-33, doi:10.1016/j.epsl.2010.05.028

Meijers, M.J.M., Kaymakci, N., Van Hinsbergen, D.J.J., Langereis, C.G., Stephenson, R.A. and Hippolyte, J.-C., 2010. Late Cretaceous to Paleocene oroclinal bending in the Central Pontides (Turkey). Tectonics, 29, TC4016, doi:10.1029/2009TC002620

Meijers, M.J.M., Langereis, C.G., Van Hinsbergen, D.J.J., Kaymakci, N., Stephenson, R.A. and  Altiner, D., 2010. Jurassic-Cretaceous low paleolatitudes from the circum-Black Sea region (Crimea and Pontides) due to True Polar Wander. Earth and  Planetary Science Letters, 296, 210-226, doi:10.1016/j.epsl.2010.04.052

Meijers, M.J.M., Vrouwe, B., Van Hinsbergen, D.J.J., Kuiper, K.F., Wijbrans, J. , Davies, G.R., Stephenson, R.A., Kaymakci, N., Matenco, L. and Saintot, A. 2010. Jurassic arc volcanism on Crimea (Ukraine): implications for the paleo-subduction zone configuration of the Black Sea region. Lithos, 119, 412-426, doi:10.1016/j.lithos.2010.07.017

Reports

Meijers, M.J.M., 2005. Palaeomagnetic data from Crimea (Ukraine): New constraints for Mesozoic plate tectonic reconstructions of the southern margin of the East European Platform (revised 2008). Cambridge, CASP Reports, Black Sea Project (Phase II): 48

STUDENT SUPERVISION / TEACHING
2018: Designing and teaching MSc course ‘Paleoenvironmental reconstructions in continental settings’ with Iuliana Vasiliev and Tina Lüdecke, Goethe University Frankfurt
2018: Substituting class ‘Effects of tectonics and climate on the morphological evolution of orogens’ for Andreas Mulch
2014: Seminar for undergraduate students at Carleton College, Minnesota: Paleomagnetism as a tool to reconstruct the large-scale geometry of Turkish orogens
2013: Noah Keller, undergraduate student, CD-CAT project, University of Minnesota
2012: Renzo Degenaar, MSc student co-supervised with Cor Langereis, project entitled: ‘Oroclinal bending in the Lesser Caucasus’, Utrecht University
2011: ‘Presentation in English’ for French 3rd year BSc students, Université de Nice-Sophia Antipolis
2011: co-supervision of Marily Mensink, BSc thesis entitled: ‘A paleomagnetic study on the South Armenian Block: The rotation since and the paleolatitude in Santonian time’, Utrecht University
2008: field training of first year BSc students of Utrecht University during four weeks in Spain
2007: co-supervision of Maartje H.F. Hamers, MSc thesis entitled: ‘A new late Paleozoic Apparent Polar Wander Path for Baltica’, Utrecht University
2006-2007: field training of first year BSc students of VU University Amsterdam during four weeks per year in Spain
2002-2005: Teaching assistant for geology students at Utrecht University: 1st year BSc Mathematics course, 2nd year BSc Structural Geology & Petrology course, 1st year BSc Introduction to Geophysics course, 1st year excursion to the Belgian Ardennes, Preparation course for 1st year BSc field work in Spain