Sedimentologie & marine Paläoumweltdynamik


Prof. Dr. Oliver Friedrich







Institut für Geowissenschaften

Ruprecht-Karls-Universität Heidelberg

Im Neuenheimer Feld 234

D-69120 Heidelberg






+49 (0)6221-54 8277

+49 (0)6221-54 8291 (Sekretariat)

+49 (0)6221-54 5503
















(demnächst verfügbar)



Akademische Bildung

since 10/2021

Vice-Dean, Faculty of Chemistry and Earth Sciences, Heidelberg University


Vice-Director, Institute of Earth Sciences, Heidelberg University


Executive Director, Institute of Earth Sciences, Heidelberg University

since 2013

Professor for Geology, Institute of Earth Sciences, Heidelberg University


Habilitation, venia legendi in Paleontology, Historical Geology and Paleoceanography

2009 - 2013

Leader of a DFG Emmy Noether research group at Institute for Geosciences, Goethe-University Frankfurt

2007 - 2009

EU Marie Curie Intra-European Fellow at National Oceanography Centre Southampton, University of Southampton, UK

2006 - 2007

DFG Research Fellow at Scripps Institution of Oceanography, University of California, San Diego, USA

2003 - 2006

Postdoc at the Federal Institute for Geosciences and Natural Resources (BGR) in Hannover, Germany


PhD (Dr. rer. nat.) at the Faculty of Geosciences at University of Tübingen

2000 - 2003

PhD student at the Institute for Geosciences, University of Tübingen


Diploma in Geology/Paleontology, University of Tübingen

1997 - 2000

Studies of Geology/Paleontology at University of Tübingen

1995 - 1997

Studies of Geology/Paleontology at University of Heidelberg


Stipendien / Auszeichnungen

01/2012 - 12/2013

Member of the MainCampus Academy

09/2007 - 08/2009

EU Marie Curie Intra-European Fellowship

09/2006 - 08/2007

DFG Foreign Exchange Research Fellowship


International Paul Brönnimann Award




Participation in IODP Expedition 342 (Newfoundland); 2nd June to 1st August 2012


Scientific participant; R.V. Meteor cruise 51-3 (La Valetta - Istanbul)


Publikationen in peer-review Zeitschriften

(* markiert Publikationen von Doktoranden oder Postdocs betreut von O. Friedrich)




84. Wiese, F., Schlüter, N., Zirkel, J., Herrle, J.O., Friedrich, O. (2023): A 104-Ma record of deep-sea Atelostomata (Holasteroida, Spatangoida, irregular echinoids) – a story of persistence, food availability and a big bang. PLOS ONE 18, e0288046.


83.* Brzelinski, S., Bornemann, A., Liebrand, D., van Peer, T.E., Wilson, P.A., Friedrich, O., (2023): Large obliquity-paced Antarctic ice-volume fluctuations suggest melting by atmospheric and ocean warming during late Oligocene. Communications Earth & Environment 4,


82. Li, S., Friedrich, O., Nielsen, S.G., Wu, F., Owens, J.D. (2023): Reconciling biogeochemical redox proxies: Tracking variable bottom water oxygenation during OAE-2 using vanadium isotopes. Earth and Planetary Science Letters 617, 118237.


81. Koutsodendris, A., Brauer, A., Friedrich, O., Tjallingii, R., Putyrskaya, V., Hennrich, B., Kühn, R., Klemt E., Pross, J. (2023): Natural and human-induced ecosystem change in SE Europe since 1700 AD derived from a partially varved sediment record from Lake Vouliagmeni (Greece). The Holocene




80.* Süfke, F., Kaboth-Bahr, S., Wei, K. Y., Chuang, C. K., Gutjahr, M., Pross, J., Friedrich, O. (2022): Intensification of Asian dust storms during the Mid-Pliocene Warm Period (3.25–2.96 Ma) documented in a sediment core from the South China Sea. Quaternary Science Reviews 292, 107669.

79. Bahr, A., Catunda, C., Friedrich, O. (2022): The first appearance of Glacial North Atlantic Intermediate Water (GNAIW) during the Mid-Pleistocene transition. Global and Planetary Change 218, 103977.

78.* Meier, K.J.F., Jaeschke, A., Rethemeyer, J., Chiessi, C.M., Spadano Albuquerque, A.L., Wall, V., Friedrich, O., Bahr, A. (2022): Coupled oceanic and atmospheric controls of deglacial southeastern South America precipitation and western South Atlantic productivity. Frontiers in Marine Science 9, 878116.

77.* Hou, A., Bahr, A., Chiessi, C.M., Jaeschke, A., Albuquerque, A.L.S., Pross, J., Koutsodendris, A., Friedrich, O. (2022): Obliquity influence on low-latitude coastal precipitation in eastern Brazil during the past ~850 kyr. Paleoceanography and Paleoclimatology 37, e2021PA004238.


76. Schwarz, F., Salzmann, U., Koutsodendris, A., Nie, J., Friedrich, O., Ni, J., Garzione, C., Fang, X., Wu, F., Woodward, J., Appel, E., Pross, J., 2022. Controls of precipitation and vegetation variability on the NE Tibetan Plateau during the late Pliocene warmth (~3.5–3.0 Ma). Global and Planetary Change 208, 103707




75.* Jakob, K.A., Pross, J., Link, J.M., Blaser, P., Hauge Braaten, A., Friedrich, O. (2021): Deep-ocean circulation in the North Atlantic during the Plio-Pleistocene intensification of Northern Hemisphere Glaciation (~2.65–2.4 Ma). Marine Micropaleontology 165, doi:10.1016/j.marmicro.2021.101998.


74. Bahr, A., Kaboth-Bahr, S., Geppert, P., Jaeschke, A., Chiessi, C., Cruz, F., Rethemeyer, J., Schefuß, E., Albuquerque, A.L., Pross, J., Friedrich, O. (2021): Growing impact of high-latitude forcing on the South American monsoon during the Holocene. Paleoceanography and Paleoclimatology 36, e2021PA004223.


73.* Meier, K., Bahr, A., Chiessi, C., Albuquerque, A.L., Friedrich, O. (2021): Role of the tropical Atlantic for the interhemispheric heat transport during the last deglaciation. Paleoceanography and Paleoclimatology 36, e2020PA004107.


72.* Catunda, M.C.A., Bahr, A., Kaboth-Bahr, S., Foukal, N., Zhang, X., Friedrich, O. (2021): Oceanic subsurface heat pathway fueled ice-sheet growth across the Mid-Pleistocene Transition. Geophysical Research Letters 28, e2020GL091899.


71.* Jakob, K.A., Ho, S.L., Meckler, A.N., Pross, J., Fiebig, J., Keppler, F., Friedrich, O. (2021): Stable Biological Production in the Eastern Equatorial Pacific across the Plio-Pleistocene Transition (~3.35–2.0 Ma). Paleoceanography and Paleoclimatology doi:10.1029/2020PA003965.




70.* Jakob, K.A., Wilson, P.A., Pross, J., Ezard, T.H.G., Fiebig, J., Repschläger, J., Friedrich, O. (2020): A new sea-level record for the Neogene/Quaternary boundary reveals transition to a more stable East Antarctic Ice Sheet. Proceedings of the National Academy of Sciences 117, 30980–30987.


69. Bahr, A., Doubrawa, M., Titschack, J., Austermann, G., Koutsodendris, A., Nürnberg, D., Albuquerque, A.L., Friedrich, O., Raddatz, J. (2020): Monsoonal forcing controlled cold water coral growth off south-eastern Brazil during the past 160 kyrs. Biogeosciences 17, 5883-5908.


68.* Hou, A., Bahr, A., Raddatz, J., Voigt, S., Greule, M., Albuquerque, A.L., Chiessi, C.M. & Friedrich, O. (2020): Insolation and greenhouse gas forcing of the South American Monsoon System across three glacial-interglacial cycles. Geophysical Research Letters 46: e2020GL087948.


67. Kaboth-Bahr, S., Koutsodendris, A., Lu, Y., Nakajima, K., Zeeden, C., Appel, E., Fang, X., Rösler, W., Friedrich, O. & Pross, J. (2020): A late Pliocene to early Pleistocene (3.3-2.1 Ma) orbital chronology for the Qaidam Basin paleolake (NE Tibetan Plateau) based on the SG-1b drillcore record. Newsletters on Stratigraphy doi:10.1127/nos/2020/0587.


66.* Hou, A., Bahr, A., Schmidt, S., Strebl, C., Albuquerque, A.L., Chiessi, C.M. & Friedrich, O. (2020): Forcing of western tropical South Atlantic sea surface temperature across three glacial-interglacial cycles. Global and Planetary Change 188: doi:10.1016/j.gloplacha.2020.103150.


65.* Lu, Y., Dewald, N., Koutsodendris, A., Kaboth-Bahr, S., Rösler, W., Fang, X., Pross, J., Appel, E. & Friedrich, O. (2020): Sedimentological evidence for pronounced glacial-interglacial climate fluctuations on NE Tibet in the latest Pliocene to early Pleistocene. Paleoceanography & Paleoclimatology 35: doi:10.1029/2020PA003864.


64. Hull, P.M., Bornemann, A., Penman, D.E., Henehan, M.J., Norris, R.D., Wilson, P.A., Blum, P., Alegret, L., Batenburg, S.J., Bown, P.R., Bralower, T.J., Cournede, C., Deutsch, A., Donner, B., Friedrich, O., et al. (2020). On impact and volcanism across the Cretaceous-Paleogene boundary. Science 367: 266-272.




63. Lippold, J., Pöppelmeier, F., Süfke, F., Gutjahr, M., Goepfert, T.J., Blaser, P., Friedrich, O., Link, J.M., Wacker, L., Rheinberger, S., Jaccard, S.L. (2019). Constraining the Atlantic Meridional Overturning Circulation during the Holocene. Geophysical Research Letters 46: 11338-11346.


62. Bahr, A., Kolber, G., Kaboth-Bahr, S., Reinhardt, L., Friedrich, O., Pross, J. (2019). Mega-monsoon variability during the late Triassic: Re-assessing the role of orbital forcing in the deposition of playa sediments in the Germanic Basin. Sedimentology doi:10.1111/sed.12668.


61. Koutsodendris, A., Allstädt, F.J., Kern, O.A., Kousis, I., Schwarz, F., Vannacci, M., Woutersen, A., Appel, E., Berke, M.A., Fang, X., Friedrich, O., Hoorn, C., Salzmann, U., Pross, J. (2019). Late Pliocene vegetation turnover on the NE Tibetan Plateau (Central Asia) triggered by early Northern Hemisphere glaciation. Global and Planetary Change 180: 117-125.




60.* Batenburg, S.J., Voigt, S., Friedrich, O., Osborne, A.H., Bornemann, A., Klein, T., Pérez-Díaz, L. & Frank, M. (2018). Major intensification of Atlantic overturning circulation at the onset of Paleogene greenhouse warmth. Nature Communications 9: doi:10.1038/s41467-018-07457-7.


59. Bolton, C.T., Bailey, I., Friedrich, O., Tachikawa, K., de Garidel-Thoron, T., Vidal, L., Sonzogni, C., Marino, G., Rohling, E.J., Robinson, M.M., Ermini, M., Koch, M., Cooper, M.J. & Wilson, P.A. (2018). North Atlantic midlatitude surface-circulation changes through the Plio-Pleistocene intensification of Northern Hemisphere glaciation. Paleoceanography and Paleoclimatology 33: doi:10.1029/2018PA003412.


58. Kaboth‐Bahr, S., Bahr, A., Zeeden, C., Toucanne, S., Eynaud, F., Jiménez‐Espejo, F., Röhl, U., Friedrich, O., Pross, J., Löwemark, L. & Lourens, L. (2018). Monsoonal forcing of European Ice‐Sheet dynamics during the Late Quaternary. Geophysical Research Letters 45: doi:10.1029/2018GL078751.


57.* Jakob, K.A., Pross, J, Scholz, C., Fiebig, J. & Friedrich, O. (2018). Thermocline state change in the eastern equatorial Pacific during the late Pliocene/early Pleistocene intensification of Northern Hemisphere glaciation. Climate of the Past 14: 1079-1095.


56. Gussone, N. & Friedrich, O. (2018). Cretaceous calcareous dinoflagellate cysts as recorder of δ44/40Caseawater and paleo-temperature using Sr/Ca thermometry. Chemical Geology 488: 138-148.


55.* Batenburg, S.J., Friedrich, O., Moriya, K., Voigt, S., Cournède, C., Moebius, I., Blum, P., Bornemann, A., Fiebig, J., Hasegawa, T., Hull, P.M., Norris, R.D., Röhl, U., Sexton, P.F., Westerhold, T., Wilson, P.A. & the IODP Expedition 342 Scientists (2018). Late Maastrichtian carbon isotope stratigraphy and cyclostratigraphy of the Newfoundland Margin (Site U1403, IODP Leg 342). Newsletters on Stratigraphy 51/2: 245-260.


54. Lu, Y., Fang, X., Friedrich, O. & Song, C. (2018). Characteristic grain-size component – A useful process-realted parameter for grain-size analysis of lacustrine sediments? Quaternary International 479: 90-99.


53. Friedrich, O., Bornemann, A., Norris, R.D., Erbacher, J. & Fiebig, J. (2018). Changes in tropical Atlantic surface-water environments inferred from late Albian planktic foraminiferal assemblages (ODP Site 1258, Demerara Rise). Cretaceous Research 87: 74-83.


52.* Egger, L.M., Bahr, A., Friedrich, O., Wilson, P.A., Norris, R.D., van Peer, T.E., Lippert, P.C., Liebrand, D. & Pross, J. (2018). Sea-level and surface-water change in the western North Atlantic across the Oligocene-Miocene Transition: A palynological perspective from IODP Site U1406 (Newfoundland margin). Marine Micropaleontology 139: 57-71.




51. Bahr, A., Kaboth, S., Hodell, D., Zeeden, C. Fiebig, J. & Friedrich, O. (2017). Oceanic heat pulses fueling moisture transport towards continental Europe across the mid-Pleistocene transition. Quaternary Science Reviews 179: 48-58.


50.* Jakob, K.A., Bolton, C.T., Wilson, P.A., Bahr, A., Pross, J., Fiebig, J., Kähler, K. & Friedrich, O. (2017). Glacial-interglacial changes in equatorial Pacific surface-water structure during the Plio-Pleistocene intensification of Northern Hemisphere Glaciation. Earth and Planetary Science Letters 463: 69-80.


49. Koutsodendris, A., Brauer, A., Reed, J.M., Plessen, B., Friedrich, O., Hennrich, B., Zacharias, I. & Pross, J. (2017). Climate variability in SE Europe since 1450 AD based on a varved sediment record from Etoliko Lagoon (western Greece). Quaternary Science Reviews 159: 63-76.




48.* Egger, L.M., Śliwińska, K.K., van Peer, T.E., Liebrand, D., Lippert, P.C., Friedrich, O., Wilson, P.A., Norris, R.D. & Pross, J. (2016). Magnetostratigraphically-calibrated dinoflagellate cyst bioevents for the uppermost Eocene to lowermost Miocene of the western North Atlantic (IODP Expedition 342, Paleogene Newfoundland sediment drifts). Review of Palaeobotany and Palynology 234: 159-185.


47.* Jakob, K., Wilson, P.A., Bahr, A., Bolton, C., Pross, J., Fiebig, J., & Friedrich, O. (2016): Plio-Pleistocene glacial-interglacial productivity changes in the eastern equatorial Pacific upwelling system. Paleoceanography 31: 453-470.




46.  Bahr, A., Kaboth, S., Jiménez-Espejo, F., Sierro, F., Voelker, A., Lourens, L., Röhl, U., Reichart, G., Escutia, C., Hernández-Molina, F., Pross, J. & Friedrich, O. (2015): Persistent monsoonal forcing of Mediterranean Outflow Water dynamics during the late Pleistocene. Geology 43: 951-954.


45.*  Moebius, I., Friedrich, O., Edgar, K.M. & Sexton, P.F. (2015): Episodes of intensified biological productivity in the subtropical Atlantic Ocean during the termination of the Middle Eocene Climatic Optimum (MECO). Paleoceanography 30: doi:10.1002/2014PA002673.




44.  Lang, D.C., Bailey, I., Wilson, P.A., Foster, G.L., Bolton, C.T., Friedrich, O. & Gutjahr, M. (2014). Response to Comment on The transition on North America from the warm humid Pliocene to the glaciated Quaternary traced by eolian dust deposition at a benchmark North Atlantic Ocean drill site, by David Lang et al.”. Quaternary Science Reviews 103: 175-183.


43.  Wacker, U., Fiebig, J., Schöne, B.R., Bahr, A., Friedrich, O., Tütken, T., Gischler, E. & Joachimski, M.M. (2014): Empirical calibration of the clumped isotope paleothermometer using calcites of various origins. Geochimica et Cosmochimica Acta 141: 127-144.


42.* Möbius, I., Friedrich, O. & Scher, H.D. (2014): Changes in Southern Ocean bottom water environments associated with the Middle Eocene Climatic Optimum. Palaeogeography, Palaeoclimatology, Palaeoecology 405: 16-27.


41.  Lang, D.C., Bailey, I., Wilson, P.A., Beer, C.J., Bolton, C.T., Friedrich, O., Newsam, C., Spencer, M.R., Gutjahr, M., Foster, G.L., Cooper, M.J. & Milton, J.A. (2014): Eolian dust deposition at a benchmark North Atlantik Ocean drill site: Insight into the transition on North America from the warm humid Pliocene to the glaciated Quaternary. Quaternary Science Reviews 93: 125-141.


40.* Kuhnt, T., Schiebel, R., Schmiedl, G., Milker, Y., Mackensen, A. & Friedrich, O. (2014): Automated and manual analyses of the pore density-to-oxygen relationship in Globobulimina turgida (BAILEY). Journal of Foraminiferal Research 44: 5-16.




39.  Friedrich, O., Wilson, P.A., Bolton, C.T., Beer, C.J. & Schiebel, R. (2013): Late Pliocene to early Pleistocene changes in the North Atlantic Current and suborbital-scale sea-surface temperature variability. Paleoceanography 28: doi:10.1002/palo.20029.


38.* Jung, C., Koch, M.C., Voigt, S. & Friedrich, O. (2013): Campanian-Maastrichtian ocean circulation in the tropical Pacific. Paleoceanography 28: doi:10.1002/palo.20051.


37.* Kuhnt, T., Friedrich, O., Schmiedl, G., Milker, Y., Mackensen, A. & Lückge, A. (2013): Relationship between pore density in benthic foraminifera and bottom-water oxygen content. Deep-Sea Research I 76: 85-95.


36.  Voigt, S., Jung, C., Friedrich, O., Frank, M., Teschner, C., & Hoffmann, J. (2013): Tectonically restricted deep-ocean circulation at the end of the Cretaceous greenhouse. Earth and Planetary Science Letters 369-370: 169-177.




35.  Friedrich, O., Norris, R.D. & Erbacher, J. (2012): Evolution of mid- to Late Cretaceous oceans-A 55 million year record of Earth’s temperature and carbon cycle. Geology 40: 107-110.


34.  Friedrich, O., Schiebel, R., Wilson, P.A., Weldeab, S., Beer, C.J., Cooper, M.J. & Fiebig, J. (2012): Influence of test size, water depth, and species ecology on Mg/Ca, Sr/Ca, δ18O and δ13C in nine modern species of planktic foraminifers. Earth and Planetary Science Letters 319-320: 133-145.


33.  Hardas, P., Mutterlose, J., Friedrich, O. & Erbacher, J. (2012): The Middle Cenomanian Event in the equatorial Atlantic: The calcareous nannofossil and benthic foraminiferal response. Marine Micropaleontology 96-97: 66-74.


32.* Jung, C., Voigt, S., & Friedrich, O. (2012): High-resolution stable isotope stratigraphy across the Campanian-Maastrichtian boundary at Shatsky Rise (tropical Pacific). Cretaceous Research 37: 177-185.


31.* Koch, M.C. & Friedrich, O. (2012): Campanian-Maastrichtian intermediate- to deep-water changes in the high latitudes: Benthic foraminiferal evidence. Paleoceanography 27: doi:10.1029/2011PA002259.


30.  Lehmann, J., Friedrich, O., von Bargen, D., Taverne, M. & Hemker, T. (2012): Early Aptian bay deposits at the southern margin of the Lower Saxony Basin: Integrated stratigraphy, palaeoenvironment and OAE 1a. Acta Geologica Polonica 62: 35-62.




29.  Friedrich, O., Voigt, S., Kuhnt, T. & Koch, M.C. (2011): Repeated bottom-water oxygenation during OAE 2: Timing and duration of short-lived benthic foraminiferal repopulation events (Wunstorf, northern Germany). Journal of Micropalaeontology 30: 119-128.


28.  Lehmann, J., Solarczyk, A. & Friedrich, O. (2011): Belemnoid arm hooks from a short-term climate shift at the Middle/Late Albian boundary – implications for the palaeoecological behaviour of belemnites. Paläontologische Zeitschrift 85: 287-302.


27.  Erbacher, J., Friedrich, O., Wilson, P.A., Lehmann, J. & Weiss, W. (2011): Short-term warming events during the boreal Albian (mid-Cretaceous). Geology 39: 223-226.




26.  Friedrich, O. (2010): Benthic foraminifera and their role to decipher paleoenvironment during mid-Cretaceous Oceanic Anoxic Events – the “anoxic benthic foraminifera” paradox. Revué de Micropaléontologie 53: 175-192.


25.  Bolton, C.T., Wilson, P.A., Bailey, I., Friedrich, O., Beer, C.J., Becker, J., Baranwal, S. & Schiebel, R. (2010): Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene. Paleoceanography 25: doi:10.1029/2010PA001951.


24.  Gebhardt, H., Friedrich, O., Schenk, B., Fox, L., Hart, M. & Wagreich, M. (2010): Paleoceanographic changes at the northern Tethyan margin during the Cenomanian-Turonian oceanic anoxic event (OAE-2). Marine Micropaleontology 77: 25-45.


23.  Voigt, S., Friedrich, O., Norris, R.D. & Schönfeld, J. (2010): Campanian-Maastrichtian carbon isotope stratigraphy: shelf-ocean correlation between the European shelf sea and the tropical Pacific Ocean. Newsletters on Stratigraphy 44: 57-72.




22.  Friedrich, O., Herrle, J.O., Cooper, M.J., Erbacher, J., Wilson, P.A. & Hemleben, C. (2009): The early Maastrichtian carbon cycle perturbation and cooling event: implications from the South Atlantic Ocean. Paleoceanography 24: PA2211, doi:10.1029/2008PA001654.


21.  Friedrich, O., Erbacher, J., Wilson, P.A., Moriya, K. & Mutterlose, J. (2009): Paleoenvironmental changes across the Mid Cenomanian Event in the tropical Atlantic Ocean (Demerara Rise, ODP Leg 207). Marine Micropaleontology 71: 28-40.




20.  Friedrich, O., Norris, R.D., Bornemann, A., Beckmann, B., Pälike, H., Worstell, P., Hofmann, P. & Wagner, T. (2008): Cyclic changes in Turonian to Coniacian planktic foraminiferal assemblages from the tropical Atlantic Ocean. Marine Micropaleontology 68: 299-313.


19.  Friedrich, O., Erbacher, J., Moriya, K., Wilson, P.A. & Kuhnert, H. (2008): Warm saline intermediate waters in the Cretaceous tropical Atlantic Ocean. Nature Geoscience 1: 453-457.


18.  Bornemann, A., Norris, R.D., Friedrich, O., Beckmann, B., Schouten, S., Sinninghe Damste, J., Vogel, J., Hofmann, P. & Wagner, T. (2008): Isotopic evidence for glaciation during the Cretaceous super-greenhouse. Science 319: 189-192.




17.  Friedrich, O. & Hemleben, C. (2007): Early Maastrichtian benthic foraminiferal assemblages from the western North Atlantic (Blake Nose) and their relation to paleoenvironmental changes. Marine Micropaleontology  62: 31-44.


16.  Moriya, K., Wilson, P.A., Friedrich, O., Erbacher, J. & Kawahata, H. (2007): Testing for ice sheets during the Mid-Cretaceous greenhouse using glassy foraminiferal calcite from the mid-Cenomanian tropics on Demerara Rise. Geology 35: 615-618.


15.  Lehmann, J., Friedrich, O., Luppold, F.W., Weiss, W. & Erbacher, J. (2007): Ammonites and associated macrofauna around the Middle/Upper Albian boundary of the Hannover-Lahe core, northern Germany. Cretaceous Research 28: 719-742.




14.  Friedrich, O. (2006): Biological and environmental effects of Late Cretaceous benthic foraminiferal stable isotope compositions. Revue de Paléobiologie 25: 839-843.


13.  Friedrich, O. & Erbacher, J. (2006): Benthic foraminiferal assemblages from Demerara Rise (ODP Leg 207, western tropical Atlantic): possible evidence for a progressive opening of the Equatorial Atlantic Gateway. Cretaceous Research 27: 379-399.


12.  Friedrich, O. & Meier, K.J.S. (2006): Suitability of stable oxygen and carbon isotopes of calcareous dinoflagellate cysts for paleoceanographic studies: evidence from the Campanian/Maastrichtian cooling phase. Palaeogeography, Palaeoclimatology, Palaeoecology 239: 456-469.


11.  Friedrich, O., Erbacher, J. & Mutterlose, J. (2006): Paleoenvironmental changes across the Cenomanian/Turonian Boundary Event (Oceanic Anoxic Event 2) as indicated by benthic foraminifera from the Demerara Rise (ODP Leg 207). Revué de Micropaléontologie 49: 121-139.


10.  Friedrich, O., Schmiedl, G. & Erlenkeuser, H. (2006): Stable isotope composition of Late Cretaceous benthic foraminifera from the southern South Atlantic: Biological and environmental effects. Marine Micropaleontology 58: 135-157.




9.    Friedrich, O., Nishi, H., Pross, J., Schmiedl, G. & Hemleben, C. (2005): Interruptions of the Oceanic Anoxic Event 1b (Lower Albian, Middle Cretaceous): Evidence from benthic foraminiferal repopulation events. Palaios 20: 64-77.


8.    Friedrich, O., Herrle, J. & Hemleben, C. (2005): Climatic changes in the Late Campanian - Early Maastrichtian: micropaleontological and stable isotopic evidence from an epicontinental sea. Journal of Foraminiferal Research 35: 228-247.


7.    Erbacher, J., Friedrich, O., Wilson, P.A., Birch, H. & Mutterlose, J. (2005): Stable organic carbon isotope stratigraphy across Oceanic Anoxic Event 2 of Demerara Rise, western tropical Atlantic. Geochemistry, Geophysics, Geosystems 6: Q06010, doi:10.1029/2004GC000850.




6.    Friedrich, O., Herrle, J.O., Kößler, P. & Hemleben, C. (2004): Early Maastrichtian stable isotopes: Changing deep-water sources in the North Atlantic? Palaeogeography, Palaeoclimatology, Palaeoecology 211: 171-184.


5.    Herrle, J.O., Kößler, P., Friedrich, O., Erlenkeuser, H. & Hemleben, C. (2004): High-resolution carbon isotope records of the Aptian to Lower Albian from SE France and the Mazagan Plateau (DSDP Site 545): a stratigraphic tool for paleoceanographic and paleobiologic reconstruction. Earth and Planetary Science Letters 218: 149-161.




4.    Friedrich, O., Reichelt, K., Herrle, J.O., Lehmann, J., Pross, J. & Hemleben, C. (2003): Causes for the formation of the Late Aptian Niveau Fallot black shales in the Vocontian Basin (SE France): Evidence from planktic and benthic foraminifera and stable isotopes. Marine Micropaleontology 49: 65-85.


3.    Friedrich, O. & Meier, K.J.S. (2003): Stable isotopic indication for the cyst formation depth of Campanian/Maastrichtian calcareous dinoflagellates. Micropaleontology 49: 375-380.


2.    Herrle, J.O., Pross, J., Friedrich, O., Kößler, P. & Hemleben, C. (2003): Forcing mechanisms for mid-Cretaceous black shale formation: evidence from the Upper Aptian and Lower Albian of the Vocontian Basin (SE France). Palaeogeography, Palaeoclimatology, Palaeoecology 190: 399-426.


1.    Herrle, J.O., Pross, J., Friedrich, O. & Hemleben, C. (2003): Short-term environmental changes in the Cretaceous Tethyan Ocean: micropaleontological evidence from the Early Albian Oceanic Anoxic Event 1b. Terra Nova 15: 14-19.



Publikationen in nicht-peer-reviewed Zeitschriften


9. Pross, J., Friedrich, O. (2019). Die Bücher der Erdgeschichte; Offenbarungen vom Grund des Meeres. Ruperto Carola Forschungsmagazin 15: 44-51.


8. Moriya, K. & Friedrich, O. (2016): Data report: relative abundance of benthic foraminiferal morphotypes across the Eocene/Oligocene and Oligocene/Miocene boundaries (IODP Expedition 342 Site U1406, North Atlantic). In Norris, R.D., Wilson, P.A., Blum, P., and the Expedition 342 Scientists, Proceedings of the Integrated Ocean Drilling Program, 342: College Station, TX (Integrated Ocean Drilling Program). iodp.proc.342.204.2016


7. Hull, P.M., Bohaty, S.M., Cameron, A., Coxall, H.K., D’haenens, S., De Vleeschouwer, D., Elder, L.E., Friedrich, O., Kerr, K., Turner, S.K., Kordesch, W.E.C., Moriya, K., Norris, R.N., Opdyke, B.N., Penman, D.E., Pälike, H., Wilson, P.A., Sexton, P.F., Vahlenkamp, M., Wu, F. & Zachos, J.C. (2017): Data report: coarse fraction record for the Eocene megasplice at IODP Sites U1406, U1408, U1409, and U1411. In Norris, R.D., Wilson, P.A, Blum, P., and the Expedition 342 Scientists, Proceedings of the Integrated Ocean Drilling Program, 342: College Station, TX (Integrated Ocean Drilling Program). iodp.proc.342.203.2017


6.   Friedrich, O., Norris, R.D., Wilson, P.A. & Opdyke, B.N. (2015): Newfoundland Neogene sediment drifts: transition from the Paleogene greenhouse to the modern icehouse. Scientific Drilling 1:  39-42.


5.    Peter B. Flemings et al. and the IODP Expedition 342 Scientists (including O. Friedrich) (2013): The Motion Decoupled Delivery System: A new deployment system for downhole tools is tested at the New Jersey Margin. Scientific Drilling, 15. doi:10.2204/


4.    Expedition 342 Scientists (including O. Friedrich) (2012): Paleogene Newfoundland sediment drifts. IODP Prel. Rept., 342. doi:10.2204/


3.    Friedrich, O. (2011): Vom Treibhausklima der Kreidezeit zum heutigen Eishausklima. Forschung Aktuell 3: 29-31.


2.    Lehmann, J. & Friedrich, O. (2007): Dentalium decussata – Ein Scaphopode aus der norddeutschen Kreide. Fossilien 24: 93-96.


1.    Lehmann, J. & Friedrich, O. (2007): Unbekannte Krabbe aus der Hannoveraner Unterkreide. Fossilien 24: 199-200.





4.    Friedrich, O. (2010): Foraminiferen als faunistische und geochemische Proxies in der Paläozeanographie und Paläoklimatologie. – Habilitation, Fakultät für Geo-wissenschaften der Goethe-Universität Frankfurt.


3.    Friedrich, O. (2003): Short-term climatic and paleoceanographic fluctuations in the Cretaceous greenhouse: Case studies from Aptian/Albian black shales and the Campanian/Maastrichtian cooling phase. – Dissertation, Geowissenschaftliche Fakultät der Eberhard-Karls-Universität Tübingen, 153 S.


2.    Friedrich, O. (2000): Reaktion benthischer Foraminiferen auf wechselnde Umweltbedingungen während der Bildung periodisch eingeschalteter Schwarzschiefer des Niveau Fallot (Ober-Apt) im Vokontischen Becken (SE-Frankreich). - Diplomarbeit, Geowissenschaftliche Fakultät der Eberhard-Karls-Universität Tübingen, 36 S.


1.    Friedrich, O. (2000): Geologische Kartierung nordwestlich l`Épine (Barronien, Südostfrankreich). - Diplomkartierung, Geowissenschaftliche Fakultät der Eberhard-Karls-Universität Tübingen, 28 S.

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