OceanRep
Items where Author is "Ehlert, Claudia"
Number of items: 39.
Doering, K. , Ehlert, C., Pahnke, K., Frank, M. , Schneider, R. and Grasse, P.
(2021)
Silicon Isotope Signatures of Radiolaria Reveal Taxon-Specific Differences in Isotope Fractionation.
Frontiers in Marine Science, 8
.
Art.Nr. 666896.
DOI 10.3389/fmars.2021.666896.
Doering, K., Ehlert, C., Martinez, P., Frank, M. and Schneider, R.
(2019)
Latitudinal variations in δ30Si and δ15N signatures along the Peruvian shelf: quantifying the effects of nutrient utilization versus denitrification over the past 600 years.
Biogeosciences (BG), 16
(10).
pp. 2163-2180.
DOI 10.5194/bg-16-2163-2019.
Geilert, S. , Hensen, C. , Doering, K., Grasse, P. , Ehlert, C., Liebetrau, V., Scholz, F., Schmidt, M. and Frank, M.
(2019)
Marine Reverse Silicate Weathering Traced by Silicon Isotopes.
[Talk]
In: Goldschmidt Conference 2019. , 18.-23.08.2019, Barcelona, Spain .
Sutton, J. N., André, L., Cardinal, D., Conley, D. J., de Souza, G. F., Dean, J., Dodd, J., Ehlert, C., Ellwood, M. J., Frings, P. J., Grasse, P. , Hendry, K., Leng, M. J., Michalopoulos, P., Panizzo, V. N. and Swann, G. E. A.
(2018)
A Review of the Stable Isotope Bio-geochemistry of the Global Silicon Cycle and Its Associated Trace Elements.
Frontiers in Earth Science, 5
(Article number 112).
DOI 10.3389/feart.2017.00112.
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.
Geilert, S. , Hensen, C. , Liebetrau, V., Scholz, F., Frank, M. and Ehlert, C.
(2017)
Si isotopes in sedimentary pore fluids trace early diagenetic reactions in the Guaymas Basin , Gulf of California.
[Talk]
In: Goldschmidt Conference 2017. , 13.-18.08.2017, Paris, France .
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.
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.
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.
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.
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.
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 .
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.
Ehlert, C., Grasse, P. and Frank, M.
(2013)
Changes in silicate utilisation and upwelling intensity off Peru since the Last Glacial Maximum – insights from silicon and neodymium isotopes.
Quaternary Science Reviews, 72
.
pp. 18-35.
DOI 10.1016/j.quascirev.2013.04.013.
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 .
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 .
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, 36 pp.
DOI 10.2312/cr_m81_1.
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.
Ehlert, C.
(2012)
Late Quaternary Changes in Silicate Utilisation and Upwelling Intensity off Peru – Insights from Silicon and Neodymium Isotopes.
(PhD/ Doctoral thesis), Christian-Albrechts-Universität, Kiel, XVIII, 140 S. pp.
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.
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.
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.
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 ; p. 6081 .
Geophysical Research Abstracts, 13
.
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.
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