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Prof. Dr Speijer, Robert

Institute  Top | Institute | Publications | Projects 
    Katholieke Universiteit Leuven; Departement Aard- en Omgevingswetenschappen; Afdeling Geologie, more
    Direct contact at institute:
    Tel.: +32-(0)16-32 64 04
    Fax: +32-(0)16-32 29 80
    E-mail:
 

Projects (3)  Top | Institute | Publications | Projects 
  • Geo-biosphere interactions in the early Paleogene: climatic changes and sea-level fluctuations during the Danian/Selandian transition (60 millio n years ago), more
  • Marine Research Drilling - The ESF Magellan Workshop Series., more
  • Vlaamse deelname aan het Integrated Ocean Drilling Program (IODP) met het European Consortium for Ocean Research Drilling (ECORD)., more

Publications (49)  Top | Institute | Publications | Projects 
    ( 49 peer reviewed ) split up
  • Peer reviewed article Acikalin, S; Vellekoop, J; Ocakoglu, F; Yilmaz, O; Smit, J; Altiner, O; Goderis, S.; Vonhof, H; Speijer, R.P.; Woelders, L.; Fornaciari, E; Brinkhuis, H (2015). Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu - Göynük Basin, NW Turkey. Cretac. Res. 52(Part A): 251-267. dx.doi.org/10.1016/j.cretres.2014.07.011, more
  • Peer reviewed article Bornemann, A; Norris, D; Lyman, A; D'haenens, S.; Groeneveld, J; Rohl, U; Farley, A; Speijer, R.P. (2014). Persistent environmental change after the Paleocene-Eocene Thermal Maximum in the eastern North Atlantic. Earth Planet. Sci. Lett. 394: 70-81. dx.doi.org/10.1016/j.epsl.2014.03.017, more
  • Peer reviewed article Bornemann, A.; Schulte, P.; Sprong, J.; Steurbaut, E.; Youssef, M.; Speijer, R.P. (2009). Latest Danian carbon isotope anomaly and associated environmental change in the southern Tethys (Nile Basin, Egypt). J. Geol. Soc. Lond. 166(6): 1135-1142. hdl.handle.net/10.1144/0016-76492008-104, more
  • Peer reviewed article Bornemann, A.; Pirkenseer, C.M.; Steurbaut, E.; Speijer, R.P. (2012). Early Paleogene d13C and d18O records based on marine ostracodes: implications for the upper Danian succession at Sidi Nasseur (Tunisia) and their application value in paleoceanography. Austrian J. Earth Sci. 105(1): 77-87, more
  • Peer reviewed article Bornemann, A.; Pirkenseer, C.M.; De Deckker, P.; Speijer, R.P. (2012). Oxygen and carbon isotope fractionation of marine ostracod calcite from the eastern Mediterranean Sea. Chem. Geol. 310-311: 114-125. dx.doi.org/10.1016/j.chemgeo.2012.03.028, more
  • Peer reviewed article Buckeridge, J.S.; Jagt, J.W.M.; Speijer, R.P. (2008). Verruca punica, a new species of verrucomorph barnacle (Crustacea, Cirripedia, Thoracica) from the Lower Danian (Palaeocene) of Tunisia. Zootaxa 1844: 37-46, more
  • Peer reviewed article Deprez, A.; Tesseur, S.; Stassen, P.; D'haenens, S.; Steurbaut, E.; King, C.; Claeys, P.; Speijer, R.P. (2015). Early Eocene environmental development in the northern Peri-Tethys (Aktulagay, Kazakhstan) based on benthic foraminiferal assemblages and stable isotopes (O, C). Mar. Micropaleontol. 115: 59-71. dx.doi.org/10.1016/j.marmicro.2014.11.003, more
  • Peer reviewed article D'haenens, S.; Bornemann, A.; Roose, K.; Claeys, P.; Speijer, R.P. (2012). Stable isotope paleoecology (d13C and d18O) of early Eocene Zeauvigerina aegyptiaca from the North Atlantic (DSDP Site 401). Austrian J. Earth Sci. 105(1): 179-188, more
  • Peer reviewed article D'haenens, S.; Bornemann, A.; Stassen, P.; Speijer, R.P. (2012). Multiple early Eocene benthic foraminiferal assemblage and d13C fluctuations at DSDP Site 401 (Bay of Biscay — NE Atlantic). Mar. Micropaleontol. 88-89: 15-35. hdl.handle.net/10.1016/j.marmicro.2012.02.006, more
  • Peer reviewed article D'haenens, S.; Bornemann, A; Claeys, P.; Rohl, U; Steurbaut, E.; Speijer, R.P. (2014). A transient deep-sea circulation switch during Eocene Thermal Maximum 2. Paleoceanography 29(5): 370-388. dx.doi.org/10.1002/2013PA002567, more
  • Peer reviewed article Ernst, S.R.; Guasti, E.; Dupuis, C.; Speijer, R.P. (2006). Environmental perturbation in the southern Tethys across the Paleocene/Eocene boundary (Dababiya, Egypt): Foraminiferal and clay mineral records. Mar. Micropaleontol. 60(1): 89-111. dx.doi.org/10.1016/j.marmicro.2006.03.002, more
  • Peer reviewed article Guasti, E.; Kouwenhoven, T.J.; Brinkhuis, H.; Speijer, R.P. (2005). Paleocene sea-level and productivity changes at the southern Tethyan margin (El Kef, Tunisia). Mar. Micropaleontol. 55(1-2): 1-17. dx.doi.org/10.1016/j.marmicro.2005.01.001, more
  • Peer reviewed article Guasti, E.; Speijer, R.P.; Brinkhuis, H.; Smit, J.; Steurbaut, E. (2006). Paleoenvironmental change at the Danian-Selandian transition in Tunisia:Foraminifera, organic-walled dinoflagellate cyst and calcareousnannofossil records. Mar. Micropaleontol. 59(3-4): 210-229. dx.doi.org/10.1016/j.marmicro.2006.02.008, more
  • Peer reviewed article Guasti, E; Speijer, R.P. (2008). Acarinina multicamerata n. sp. (Foraminifera): a new marker for the Paleocene-Eocene thermal maximum. J. Micropalaeontol. 27: 5-12, more
  • Peer reviewed article Jehle, S.; Bornemann, A.; Deprez, A.; Speijer, R.P. (2015). The impact of the latest Danian event on planktic foraminiferal faunas at ODP site 1210 (Shatsky Rise, Pacific Ocean). PLoS One 10(11): e0141644. dx.doi.org/10.1371/journal.pone.0141644, more
  • Peer reviewed article Kost'ak, M.; Jagt, J.W.M.; Speijer, R.P.; Stassen, P.; Steurbaut, E. (2013). New Paleocene Sepiid Coleoids (Cephalopoda) from Egypt: evolutionary significance and origin of the Sepiid 'Rostrum'. PLoS One 8(11): 1-19. dx.doi.org/10.1371/journal.pone.0081180, more
  • Peer reviewed article Meilijson, A; Ashckenazi-Polivoda, S; Ron-Yankovich, L; Illner, P; Alsenz, H; Speijer, R.P.; Almogi-Labin, A; Feinstein, S; Berner, Z; Puttmann, W; Abramovich, S (2014). Chronostratigraphy of the Upper Cretaceous high productivity sequence of the southern Tethys, Israel. Cretac. Res. 50: 187-213. dx.doi.org/10.1016/j.cretres.2014.04.006, more
  • Peer reviewed article Meilijson, A.; Ashckenazi-Polivoda, S.; Illner, P.; Alsenz, H.; Speijer, R.P.; Almogi-Labin, A.; Feinstein, S.; Puttmann, W.; Abramovich, S. (2016). Evidence for specific adaptations of fossil benthic foraminifera to anoxic-dysoxic environments. Paleobiology 42(1): 77-97. dx.doi.org/10.1017/pab.2015.31, more
  • Peer reviewed article Morsi, A.-M.M.; Speijer, R.P.; Stassen, P.; Steurbaut, E. (2011). Shallow marine ostracode turnover in response to environmental change during the Paleocene–Eocene thermal maximum in northwest Tunisia. J. Afr. Earth Sci. 59(2-3): 243-268. hdl.handle.net/10.1016/j.jafrearsci.2010.11.001, more
  • Peer reviewed article Nguyen, T.M.P.; Petrizzo, M.R.; Speijer, R.P. (2009). Experimental dissolution of a fossil foraminiferal assemblage (Paleocene-Eocene Thermal Maximum, Dababiya, Egypt): Implications for paleoenvironmental reconstructions. Mar. Micropaleontol. 73(3-4): 241-258. dx.doi.org/10.1016/j.marmicro.2009.10.005, more
  • Peer reviewed article Nguyen, T.M.P.; Petrizzo, M.R.; Stassen, P.; Speijer, R.P. (2011). Dissolution susceptibility of Paleocene-Eocene planktic foraminifera: implications for palaeoceanographic reconstructions. Mar. Micropaleontol. 81(1-2): 1-21. hdl.handle.net/10.1016/j.marmicro.2011.07.001, more
  • Peer reviewed article Nguyen, T.M.P.; Speijer, R.P. (2014). A new procedure to assess dissolution based on experiments on Pliocene-Quaternary foraminifera (ODP Leg 160, Eratosthenes Seamount, Eastern Mediterranean). Mar. Micropaleontol. 106: 22-39. dx.doi.org/10.1016/j.marmicro.2013.11.004, more
  • Peer reviewed article Petrizzo, M.R.; Leoni, G.; Speijer, R.P.; De Bernardi, B.; Felletti, F. (2008). Dissolution susceptibility of some Paleogene planktonic foraminifera from ODP site 1209 (shatsky rise, Pacific Ocean). Journal of Foraminiferal Research 38(4): 357-371. dx.doi.org/10.2113/gsjfr.38.4.357, more
  • Peer reviewed article Pirkenseer, C.M.; Steurbaut, E.; Abels, H.A.; King, C.; Speijer, R.P. (2013). An expanded lower Eocene shelf sequence from the eastern Aquitaine Basin, SW France: biostratigraphy, biofacies, and stable carbon and oxygen isotopes. Newsl. stratigr. 46(3): 339-361. dx.doi.org/10.1127/0078-0421/2013/0037, more
  • Peer reviewed article Scheibner, C.; Speijer, R.P.; Marzouk, A.M. (2005). Turnover of larger foraminifera during the Paleocene-Eocene Thermal Maximum and paleoclimatic control on the evolution of platform ecosystems. Geotechnique 33(6): 493-496. dx.doi.org/10.1130/G21237.1, more
  • Peer reviewed article Scheibner, C.; Speijer, R.P. (2008). Late Paleocene–early Eocene Tethyan carbonate platform evolution — A response to long- and short-term paleoclimatic change. Earth-Sci. Rev. 90(3-4): 71-102. dx.doi.org/10.1016/j.earscirev.2008.07.002, more
  • Peer reviewed article Scheibner, C.; Speijer, R.P. (2008). Decline of coral reefs during late Paleocene to early Eocene global warming. eE 3: 19-26. hdl.handle.net/10.5194/ee-3-19-2008, more
  • Peer reviewed article Scheibner, C; Speijer, R.P. (2009). Recalibration of the Tethyan shallow-benthic zonation across the Paleocene-Eocene boundary: the Egyptian record. Geol. Acta 7(1-2): 195-214. hdl.handle.net/10.1344/105.000000267, more
  • Peer reviewed article Schmitz, B.; Pujalte, V.; Eustoquio, M.; Monechi, S.; Orue-Etxebarria, X; Speijer, R.P.; Alegret, L.; Apellaniz, E.; Arenillas, I.; Aubry, M.P.; Baceta, J.I.; Berggren, W.A.; Bernaola, G.; Caballero, F.; Clemmensen, A; Dinarès-Turell, J.; Dupuis, C.; Heilmann-Clausen, C.; Hilario Orús, A.; Knox, R.; Martín-Rubio, M.; Ortiz, S.; Payros, A.; Petrizzo, M.R.; Sprong, J.; Steurbaut, E.; Thomsen, E. (2011). The Global Stratotype Sections and Points for the bases of the Selandian (Middle Paleocene) and Thanetian (Upper Paleocene) stages at Zumaia, Spain. Episodes 34(4): 220-243, more
  • Peer reviewed article Schulte, P.; Scheibner, C.; Speijer, R.P. (2011). Fluvial discharge and sea-level changes controlling black shale deposition during the Paleocene-Eocene Thermal Maximum in the Dababiya Quarry section, Egypt. Chem. Geol. 285(1-4): 167-183. dx.doi.org/10.1016/j.chemgeo.2011.04.004, more
  • Peer reviewed article Schulte, P.; Schwark, L.; Stassen, P.; Kouwenhoven, T.J.; Bornemann, A.; Speijer, R.P. (2013). Black shale formation during the Latest Danian Event and thePaleocene-Eocene Thermal Maximum in central Egypt: Two of a kind? Palaeogeogr. Palaeoclimatol. Palaeoecol. 371: 9-25. dx.doi.org/10.1016/j.palaeo.2012.11.027, more
  • Peer reviewed article Schulte, P.; Speijer, R.P. (2009). Late Maastrichtian-Early Paleocene sea level and climate changes in the Antioch Church Core (Alabama, Gulf of Mexico margin, USA): A multi-proxy approach. Geol. Acta 7(1-2): 11-34. hdl.handle.net/10.1344/105.000000279, more
  • Peer reviewed article Speijer, R.P.; Van Loo, D.; Masschaele, B; Vlassenbroeck, J.; Cnudde, V.; Jacobs, P. (2008). Quantifying foraminiferal growth with high-resolution X-ray computed tomography: New opportunities in foraminiferal ontogeny, phylogeny, and paleoceanographic applications. Geosphere 4(4): 760-763. hdl.handle.net/10.1130/GES00176.1, more
  • Peer reviewed article Speijer, R.P.; Scheibner, C.; Stassen, P.; Morsi, A.-M.M. (2012). Response of marine ecosystems to deep-time global warming: a synthesis of biotic patterns across the Paleocene-Eocene thermal maximum (PETM). Austrian J. Earth Sci. 105(1): 6-16, more
  • Peer reviewed article Sprong, J.; Speijer, R.P.; Steurbaut, E. (2009). Biostratigraphy of the Danian/Selandian transition in the southern Tethys. Special reference to the Lowest Occurrence of planktic foraminifera Igorina albeari. Geol. Acta 7(1-2): 63-77. hdl.handle.net/10.1344/105.000000271, more
  • Peer reviewed article Sprong, J.; Youssef, M.A.; Bornemann, A.; Steurbaut, E.; Stassen, P.; Kouwenhoven, T.J.; Speijer, R.P. (2011). A multi-proxy record of the Latest Danian Event at Gebel Qreiya, Eastern Desert, Egypt. J. Micropalaeontol. 30(2): 167-182. dx.doi.org/10.1144/0262-821X10-023, more
  • Peer reviewed article Sprong, J.; Kouwenhoven, T.J.; Bornemann, A.; Schulte, P.; Steurbaut, E.; Youssef, M.; Speijer, R.P. (2012). Characterization of the Latest Danian Event by means of benthic foraminiferal assemblages along a depth transect at the southern Tethyan margin (Nile Basin, Egypt). Mar. Micropaleontol. 86-87: 15-31. hdl.handle.net/10.1016/j.marmicro.2012.01.001, more
  • Peer reviewed article Sprong, J.; Kouwenhoven, T.J.; Bornemann, A.; Dupuis, C.; Speijer, R.P.; Stassen, P.; Steurbaut, E. (2013). In search of the Latest Danian Event in a paleobathymetric transect off Kasserine Island, north-central Tunisia. Palaeogeogr. Palaeoclimatol. Palaeoecol. 379-380: 1-16. dx.doi.org/10.1016/j.palaeo.2013.01.018, more
  • Peer reviewed article Stassen, P.; Dupuis, C.; Morsi, A.-M.M.; Steurbaut, E.; Speijer, R.P. (2009). Reconstruction of a latest Paleocene shallow-marine eutrophic paleoenvironment at Sidi Nasseur (Central Tunisia) based on foraminifera, ostracoda, calcareous nannofossils and stable isotopes (delta13C delta18O). Geol. Acta 7(1-2): 93-112. hdl.handle.net/10.1344/105.000000273, more
  • Peer reviewed article Stassen, P.; Steurbaut, E.; Morsi, A.-M.M.; Schulte, P.; Speijer, R.P. (2012). Biotic impact of Eocene thermal maximum 2 in a shelf setting (Dababiya, Egypt). Austrian J. Earth Sci. 105(1): 154-160, more
  • Peer reviewed article Stassen, P.; Thomas, E.; Speijer, R.P. (2012). Restructuring outer neritic foraminiferal assemblages in the aftermath of the Paleocene-Eocene thermal maximum. J. Micropalaeontol. 31(1): 89-93. hdl.handle.net/10.1144/0262-821X11-026, more
  • Peer reviewed article Stassen, P.; Dupuis, C.; Steurbaut, E.; Yans, J.; Speijer, R.P. (2012). Perturbation of a Tethyan coastal environment during the Paleocene–Eocene thermal maximum in Tunisia (Sidi Nasseur and Wadi Mezaz). Palaeogeogr. Palaeoclimatol. Palaeoecol. 317-318: 66-92. hdl.handle.net/10.1016/j.palaeo.2011.12.011, more
  • Peer reviewed article Stassen, P.; Thomas, E.; Speijer, R.P. (2012). The progression of environmental changes during the onset of the Paleocene-Eocene thermal maximum (New Jersey Coastal Plain). Austrian J. Earth Sci. 105(1): 169-178, more
  • Peer reviewed article Stassen, P.; Dupuis, C.; Steurbaut, E.; Yans, J.; Storme, J.-Y.; Morsi, A.M.; Lacumin, P.; Speijer, R.P. (2013). Unraveling the Paleocene-Eocene thermal maximum in shallow marine Tethyan environments: the Tunisian stratigraphic record. Newsl. Stratigr. 46(1): 69-91. dx.doi.org/10.1127/0078-0421/2013/0028, more
  • Peer reviewed article Stassen, P.; Thomas, E.; Speijer, R.P. (2015). Paleocene-Eocene Thermal Maximum environmental change in the New Jersey Coastal Plain: benthic foraminiferal biotic events. Mar. Micropaleontol. 115: 1-23. dx.doi.org/10.1016/j.marmicro.2014.12.001, more
  • Peer reviewed article Van Itterbeeck, J.; Sprong, J.; Dupuis, C.; Speijer, R.P.; Steurbaut, E. (2007). Danian/Selandian boundary stratigraphy, paleoenvironment and Ostracoda from Sidi Nasseur, Tunisia. Mar. Micropaleontol. 62(4): 211-234. dx.doi.org/10.1016/j.marmicro.2006.08.006, more
  • Peer reviewed article Vanhove, D.; Stassen, P.; Speijer, R.P.; Steurbaut, E. (2011). Assessing paleotemperature and seasonality during the Early Eocene climatic optimum (EECO) in the Belgian basin by means of fish otolith stable O and C isotopes. Geol. Belg. 14(3-4): 143-158, more
  • Peer reviewed article Vanhove, D.; Stassen, P.; Speijer, R.P.; Claeys, P.; Steurbaut, E. (2012). Intra- and intertaxon stable O and C isotope variability of fossil fish otoliths: an early Eocene test case. Austrian J. Earth Sci. 105(1): 200-207, more
  • Peer reviewed article Woelders, L.; Speijer, R.P. (2015). Stable seafloor conditions, sea level and food supply during the latest Maastrichtian at Brazos River, Texas. Mar. Micropaleontol. 121: 41-51. dx.doi.org/10.1016/j.marmicro.2015.10.002, more

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