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Number of items: 34.

Article in a Scientific Journal - peer-reviewed


Grasse, P., Brzezinski, M., Cardinal, D., de Souza, G. F., Andersson, P., Closset, I., Cao, Z., Dai, M., Ehlert, C., Estrade, N., Francois, R., Frank, M., Jiang, G., Jones, J. L., Kooijman, E., Liu, Q., Lu, D., Pahnke, K., Ponzevera, E., Schmitt, M., Sun, X., Sutton, J., Thil, F., Weis, D., Wetzel, F., Zhang, A., Zhang, J. and Zhang, Z. (2017) GEOTRACES Intercalibration of the Stable Silicon Isotope Composition of Dissolved Silicic Acid in Seawater Journal of Analytical Atomic Spectrometry, 32 (3). pp. 562-578. DOI 10.1039/C6JA00302H.

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Doering, K., Erdem, Z., Ehlert, C., Fleury, S., Frank, M. and Schneider, R. (2016) Changes in diatom productivity and upwelling intensity off Peru since the Last Glacial Maximum: Response to basin-scale atmospheric and oceanic forcing Paleoceanography, 31 (10). 1453-1473 . DOI 10.1002/2016PA002936.

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Ehlert, C., Doering, K., Wallmann, K., Scholz, F., Sommer, S., Grasse, P., Geilert, S. and Frank, M. (2016) Stable silicon isotope signatures of marine pore waters – Biogenic opal dissolution versus authigenic clay mineral formation Geochimica et Cosmochimica Acta, 191 . pp. 102-117. DOI 10.1016/j.gca.2016.07.022.

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Grasse, P., Ryabenko, E., Ehlert, C., Altabet, M. A. and Frank, M. (2016) Silicon and nitrogen cycling in the upwelling area off Peru: A dual isotope approach Limnology and Oceanography, 61 (5). pp. 1661-1676. DOI 10.1002/lno.10324.

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Doering, K., Ehlert, C., Grasse, P., Crosta, X., Fleury, S., Frank, M. and Schneider, R. (2016) Differences between mono-generic and mixed diatom silicon isotope compositions trace present and past nutrient utilisation off Peru Geochimica et Cosmochimica Acta, 177 . pp. 30-47. DOI 10.1016/j.gca.2015.12.029.

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Ehlert, C., Grasse, P., Gutiérrez, D., Salvatteci, R. and Frank, M. (2015) Nutrient utilisation and weathering inputs in the Peruvian upwelling region since the Little Ice Age Climate of the Past, 11 . pp. 187-202. DOI 10.5194/cp-11-187-2015.

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Grasse, P., Ehlert, C. and Frank, M. (2013) The influence of water mass mixing on the dissolved Si isotope composition in the Eastern Equatorial Pacific Earth and Planetary Science Letters, 380 . pp. 60-71. DOI 10.1016/j.epsl.2013.07.033.

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Etourneau, J., Ehlert, C., Frank, M., Martinez, P. and Schneider, R. (2012) Contribution of changes in opal productivity and nutrient distribution in the coastal upwelling systems to Late Pliocene/Early Pleistocene climate cooling Climate of the Past, 8 (5). pp. 1435-1445. DOI 10.5194/cp-8-1435-2012.

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Ehlert, C., Grasse, P., Mollier-Vogel, E., Böschen, T., Franz, J., de Souza, G. F., Reynolds, B. C., Stramma, L. and Frank, M. (2012) Factors controlling the silicon isotope distribution in waters and surface sediments of the Peruvian coastal upwelling Geochimica et Cosmochimica Acta, 99 . pp. 128-145. DOI 10.1016/j.gca.2012.09.038.

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Cao, Z., Frank, M., Dai, M., Grasse, P. and Ehlert, C. (2012) Silicon isotope constraints on sources and utilization of silicic acid in the northern South China Sea Geochimica et Cosmochimica Acta, 97 . pp. 88-104. DOI 10.1016/j.gca.2012.08.039.

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Ehlert, C., Frank, M., Haley, B. A., Böniger, U., De Deckker, P. and Gingele, F. X. (2011) Current transport versus continental inputs in the eastern Indian Ocean: Radiogenic isotope signatures of clay size sediments Geochemistry Geophysics Geosystems, 12 (6). Q06017. DOI 10.1029/2011GC003544.

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Kindler, P., Godefroid, F., Chiaradia, M., Ehlert, C., Eisenhauer, A., Frank, M., Hasler, C. A. and Samankassou, E. (2011) Discovery of Miocene to early Pleistocene deposits on Mayaguana, Bahamas: Evidence for recent active tectonism on the North American margin Geology, 39 (6). pp. 523-526. DOI 10.1130/G32011.1.

Conference presentation


Grasse, P., Ehlert, C. and Frank, M. (2014) Silicon isotopes in the Eastern Tropical Pacific [Invited talk] In: AGU Fall Meeting 2014, 15.-19.12.2014, San Francisco, USA.


Ehlert, C., Grasse, P. and Frank, M. (2012) Changes in silicate utilisation and upwelling intensity off Peru - insights from silicon and neodynium isotopes [Talk] In: GV & Sediment Meeting 2012, Of Land and Sea: Processes and Products, 26.09.2012, Hamburg.


Grasse, P., Ehlert, C., Franz, J., Böschen, T., Mollier-Vogel, E., Stramma, L. and Frank, M. (2012) Silicon isotope distribution in waters and surface sediments of the Peruvian coastal upwelling [Talk] In: IBIS Hamburg 2012, Isotopes in Biogenic Silica (IBiS) 2012 Meeting, 28.05.-30.05.2012, Hamburg.


Ehlert, C., Grasse, P. and Frank, M. (2011) Changes in silicate utilization and upwelling intensity off Peru since the LGM - insights from silicon and neodymium isotopes [Talk] In: Goldschmidt Conference 2011, 14.-19.08.2011, Prague, Czech Republic.


Ehlert, C., Grasse, P. and Frank, M. (2011) Changes in silicate utilization and upwelling intensity off Peru since the LGM - insights from silicon isotopes [Talk] In: EGU General Assembly 2011, 03.-08.04.2011, Vienna, Austria.

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Grasse, P., Ehlert, C., Ryabenko, E. and Frank, M. (2011) Silicon isotopes as a tracer for silicate utilization in the Peruvian upwelling [Talk] In: EGU General Assembly 2011, 03.04.-08.04.2011, Vienna, Austria.


Grasse, P., Ehlert, C., Stramma, L., Ryabenko, E., Franz, J. and Frank, M. (2011) Silicon isotopes as a tracer for silicate utilization in the Peruvian upwelling [Talk] In: Goldschmidt Conference 2011, 14.-19.08.2011, Prague, Czech Republic.

Conference poster

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Doering, K., Ehlert, C., Crosta, X., Frank, M. and Schneider, R. (2014) Comparison of stable silicon isotope compositions of biogenic opal and diatom assemblages: A deglacial to Holocene record of the Peruvian upwelling [Poster] In: Ocean Sciences Meeting 2014, 23.-28.02.2014, Honululu, Hawaii, USA.

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Doering, K., Ehlert, C., Mollier-Vogel, E., Frank, M. and Schneider, R. (2013) Combined stable silicon and nitrogen isotope compositions as tracers of nutrient cycling off Peru during the past 20,000 years [Poster] In: IBiS Helsinki 2013, 03.-05.06.2013, Helsinki, Finland .


Grasse, P., Ehlert, C. and Frank, M. (2013) Influences on silicon isotope signatures in the Eastern Equatorial Pacific: Water mass mixing vs. dissolution processes [Poster] In: IBIS Meeting, 03.06.-06.06.2013, Helsinki, Finland.

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Doering, K., Ehlert, C., Mollier-Vogel, E., Crosta, X., Robinson, R. S., Frank, M. and Schneider, R. (2013) Stable silicon and nitrogen isotope compositions - Deglacial to Holocene changes of the nutrient cycling off Peru [Poster] In: 11. International Conference on Paleoceanography (ICP11) 2013, 01.-06.09.2013, Sitges - Barcelona, Spain.


Grasse, P., Ryabenko, E., Ehlert, C. and Frank, M. (2012) Comparison between silicon and nitrogen isotopes in the upwelling area off Peru [Poster] In: 2012 Ocean Sciences Meeting, OSM, 20.02.-24.02.2012, Salt Lake City, Utah, USA.


Cao, Z., Frank, M., Dai, M., Grasse, P. and Ehlert, C. (2012) Silicon isotope constraints on sources and utilization of silicate in the northern South China Sea [Poster] In: 2012 Ocean Sciences Meeting, OSM, 20.02.-24.02.2012, Salt Lake City, Utah, USA.


Frank, M., Grasse, P., Ehlert, C., Stichel, T. and Stramma, L. (2011) Distribution of neodymium and silicon isotopes in Eastern Equatorial Pacific seawater [Poster] In: 3rd GEOTRACES Date Model Synergy Workshop, 14.-17.11.2011, Barcelona, Spain.


Ehlert, C., Grasse, P., Frank, M. and Stramma, L. (2010) Silicon isotope distribution in the Peruvian upwelling area [Poster] In: 10th International Conference on Paleoceanography (ICP), 29.08.-03.09.2010, San Diego, CA, USA.


Grasse, P., Ehlert, C., Frank, M., Stichel, T. and Stramma, L. (2010) Tracing water masses in the eastern equatorial Pacific with Nd isotopes: Evidence for strong inputs from the Peruvian coast [Poster] In: 10th International Conference on Paleoceanography, 29.08.-03.09.2010, San Diego, CA, USA.


Ehlert, C., Frank, M., Eisenhauer, A. and Schönfeld, J. (2009) Biogeochemical reconstruction of past oxygenation conditions in the Peruvian coastal upwelling system [Poster] In: Cioppino-Workshop "Transient Changes in Past Warm Climates", 01.08, Urbino, Italy.


Ehlert, C., Frank, M., Haley, B., Gingele, F. and DeDeckker, P. (2009) Radiogenic isotope signatures of clay-size sediments in the Eastern Indian Ocean: Weathering inputs and current regimes during the latest Quaternary [Poster] In: Goldschmidt Conference, 23.06, Davos, Switzerland.

Thesis - not published by a publisher

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Ehlert, C. (2012) Late Quaternary Changes in Silicate Utilisation and Upwelling Intensity off Peru – Insights from Silicon and Neodymium Isotopes (Doctoral thesis/PhD), Christian-Albrechts-Universität, Kiel, XVIII, 140 S. pp

Report - Cruise Report

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Frank, M., Abouchami, W., Alexander, B., Balzer, W., Barnes, C., Camara-Mor, P., Ehlert, C., Fichtner, V., Fischer, M., Galer, S., Goldstein, F., Hagenow, A., Haynert, K., Heinze, J., Masque, P., Merschel, G., Koschinsky, A., Kraft, S., Kretschmer, K., Kretschmer, S., Lorenzen, J., Ostendorf, M., Poehle, S., Roth, C., Staubwasser, M., Stumpf, R., Tang, X., Teschner, C., Truscheit, T., Vogt, M. and Zieringer, M. (2013) Trace Metals and Their Isotopes in the Tropical Atlantic Ocean - Cruise No. M81/1, February 04 – March 08, 2010, Las Palmas (Canary Islands, Spain) – Port of Spain (Trinidad & Tobago) METEOR-Berichte, M81/1 . DFG-Senatskommission für Ozeanographie, Bremen. DOI 10.2312/cr_m81_1.

This list was generated on Mon Sep 25 18:02:16 2017 CEST.