Items where Author is "Geldmacher, Jörg"

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Number of items: 119.

Articles in a Scientific Journal - peer-reviewed

[thumbnail of Geldmacher et al_2023_pre-proof.docx]

Geldmacher, J. , Hauff, F. , Dürkefälden, A., Sano, T., Garbe-Schönberg, D., Portnyagin, M. and Hoernle, K. (2023) The effects of submarine alteration and phosphatization on igneous rocks: Implications for Sr-, Nd-, Pb-isotope studies. Chemical Geology, 631 . Art.Nr. 121509. DOI 10.1016/j.chemgeo.2023.121509.

Homrighausen, S., Hoernle, K. , Hauff, F. , Hoyer, P. A., Haase, K. M., Geissler, W. H. and Geldmacher, J. (2023) Evidence for compositionally distinct upper mantle plumelets since the early history of the Tristan-Gough hotspot. Open Access Nature Communications, 14 . 3908 (2023). DOI 10.1038/s41467-023-39585-0.

[thumbnail of Zhou et al_Lithos_2022.zip] [thumbnail of Pre-proof]

Zhou, H. , Hoernle, K. , Geldmacher, J. , Hauff, F. , Homrighausen, S., Garbe-Schönberg, D., Jung, S. and Bindeman, I. (2022) A HIMU volcanic belt along the SW African coast (∼83–49 Ma): New geochemical clues to deep mantle dynamics from carbonatite and silica-undersaturated complexes in Namibia. Lithos, 430-431 . Art.Nr. 106839. DOI 10.1016/j.lithos.2022.106839.

Zhou, H. , Hoernle, K. , Geldmacher, J. , Hauff, F. , Garbe-Schönberg, D., Jung, S. and Bindeman, I. (2022) Enriched mantle one (EMI) type Carbonatitic Volcanism in Namibia: Evidence for a concentrically-zoned Etendeka plume head. Gondwana Research, 109 . pp. 239-252. DOI 10.1016/j.gr.2022.04.014.

[thumbnail of Pank_Santorini_2022.pdf]

Pank, K., Hansteen, T. H. , Geldmacher, J. , Hauff, F. , Jicha, B., Nomikou, P., Garbe-Schönberg, D. and Hoernle, K. (2022) Mineralogy and geochemistry of lavas from the submarine lower caldera walls of Santorini Volcano (Greece). Journal of Volcanology and Geothermal Research, 427 . Art.Nr. 107556. DOI 10.1016/j.jvolgeores.2022.107556.

[thumbnail of 2021GC009847.pdf] [thumbnail of Supporting Information ]

Dürkefälden, A., Geldmacher, J. , Portnyagin, M. , Garbe‐Schönberg, D., Werner, R., Müller, D., Hauff, F. and Hoernle, K. (2021) Papanin Ridge and Ojin Rise Seamounts (Northwest Pacific): Dual Hotspot Tracks Formed by the Shatsky Plume. Open Access Geochemistry, Geophysics, Geosystems, 22 (9). e2021GC009847. DOI 10.1029/2021GC009847.

[thumbnail of ter12468-sup-0005-suppinfo.docx] [thumbnail of ter.12468.pdf]

Long, X., Geldmacher, J. , Hoernle, K. , Hauff, F. , Wartho, J. A. and Garbe-Schönberg, D. (2020) Origin of isolated seamounts in the Canary Basin (East Atlantic): The role of plume material in the origin of seamounts not associated with hotspot tracks. Open Access Terra Nova, 32 (5). pp. 390-398. DOI 10.1111/ter.12468.

Homrighausen, S., Hoernle, K. , Zhou, H. , Geldmacher, J. , Wartho, J. A. , Hauff, F. , Werner, R., Jung, S. and Morgan, J. P. (2020) Paired EMI-HIMU hotspots in the South Atlantic-Starting plume heads trigger compositionally distinct secondary plumes?. Open Access Science Advances, 6 (28). eaba0282. DOI 10.1126/sciadv.aba0282.

[thumbnail of Long BSP manuscript - accepted version.pdf] [thumbnail of Long et.al.pdf]

Long, X., van der Zwan, F. M. , Geldmacher, J. , Hoernle, K. , Hauff, F. , Garbe-Schönberg, C. D. and Augustin, N. (2020) Insights into the petrogenesis of an intraplate volcanic province: Sr-Nd-Pb-Hf isotope geochemistry of the Bathymetrists Seamount Province, eastern equatorial Atlantic. Open Access Chemical Geology, 544 (Article number 119599). DOI 10.1016/j.chemgeo.2020.119599.

Zhou, H. , Hoernle, K. , Geldmacher, J. , Hauff, F. , Homrighausen, S., Garbe-Schönberg, D. and Jung, S. (2020) Geochemistry of Etendeka magmatism: Spatial heterogeneity in the Tristan-Gough plume head. Open Access Earth and Planetary Science Letters, 535 (Article number 116123). DOI 10.1016/j.epsl.2020.116123.

[thumbnail of Long et al_Lithos_2019_Print.pdf] [thumbnail of Long et al Lithos_2019_Appendix.zip]

Long, X., Geldmacher, J. , Hoernle, K. A. , Hauff, F. , Wartho, J. A. , Garbe-Schönberg, D. and Grevemeyer, I. (2019) Age and origin of Researcher Ridge and an explanation for the 14° N anomaly on the Mid-Atlantic Ridge by plume-ridge interaction. Lithos, 326-327 . pp. 540-555. DOI 10.1016/j.lithos.2019.01.005.

[thumbnail of Accepted manuscript] [thumbnail of Homrighausen.pdf]

Homrighausen, S., Hoernle, K. , Hauff, F. , Geldmacher, J. , Wartho, J. A. , van den Bogaard, P. and Garbe-Schönberg, D. (2018) Global distribution of the HIMU end member: Formation through Archean plume-lid tectonics. Open Access Earth-Science Reviews, 182 . pp. 85-101. DOI 10.1016/j.earscirev.2018.04.009.

Homrighausen, S., Hoernle, K. , Geldmacher, J. , Wartho, J. A. , Hauff, F. , Portnyagin, M. , Werner, R., van den Bogaard, P. and Garbe-Schönberg, D. (2018) Unexpected HIMU-type late-stage volcanism on the Walvis Ridge. Open Access Earth and Planetary Science Letters, 492 . pp. 251-263. DOI 10.1016/j.epsl.2018.03.049.

Tejada, M. L. G., Geldmacher, J. , Hauff, F. , Heaton, D., Koppers, A. A. P., Garbe-Schönberg, D., Hoernle, K. , Heydolph, K. and Sager, W. W. (2016) Geochemistry and Age of Shatsky, Hess, and Ojin Rise seamounts: Implications for a connection between the Shatsky and Hess Rises. Open Access Geochimica et Cosmochimica Acta, 185 . pp. 302-327. DOI 10.1016/j.gca.2016.04.006.

[thumbnail of Supplementary Material] [thumbnail of Geldmacher et.al.pdf]

Geldmacher, J. , van den Bogaard, P., Heydolph, K. and Hoernle, K. (2014) The age of Earth’s largest volcano: Tamu Massif on Shatsky Rise (northwest Pacific Ocean). International Journal of Earth Sciences, 103 (8). pp. 2351-2357. DOI 10.1007/s00531-014-1078-6.

[thumbnail of Höfig et.al.pdf]

Höfig, T., Geldmacher, J. , Hoernle, K. , Hauff, F. , Duggen, S. and Garbe-Schönberg, D. (2014) From the lavas to the gabbros: 1.25 km of geochemical characterization of upper oceanic crust at ODP/IODP Site 1256, eastern equatorial Pacific. Lithos (210/211). pp. 289-312. DOI 10.1016/j.lithos.2014.08.013.

[thumbnail of Heydolph et al_Lithos_2014.pdf]

Heydolph, K., Murphy, D. T., Geldmacher, J. , Romanova, I. V., Greene, A., Hoernle, K. , Weis, D. and Mahoney, J. (2014) Plume versus plate origin for the Shatsky Rise oceanic plateau (NW Pacific): Insights from Nd, Pb and Hf isotopes. Lithos, 200-201 . pp. 49-63. DOI 10.1016/j.lithos.2014.03.031.

[thumbnail of Marine_Geology_357_2014.pdf] [thumbnail of Li, Geldmacher et al_acc..pdf]

Li, S., Geldmacher, J. , Hauff, F. , Garbe-Schönberg, D., Yu, S., Zhao, S. and Rausch, S. (2014) Composition and timing of carbonate vein precipitation within the igneous basement of the Early Cretaceous Shatsky Rise, NW Pacific. Open Access Marine Geology, 357 . pp. 321-333. DOI 10.1016/j.margeo.2014.09.046.

Lustrino, M., Fedele, L., Melluso, L., Morra, V., Ronga, F., Geldmacher, J. , Duggen, S., Agostini, S., Cucciniello, C., Franciosi, L. and Meisel, T. (2013) Origin and evolution of Cenozoic magmatism of Sardinia (Italy). A combined isotopic (Sr-Nd-Pb-O-Hf-Os) and petrological view. Open Access Lithos, 180/181 . pp. 138-158. DOI 10.1016/j.lithos.2013.08.022.

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Gurenko, A. A., Geldmacher, J. , Hoernle, K. A. and Sobolev, A. V. (2013) A composite, isotopically-depleted peridotite and enriched pyroxenite source of Madeira magmas: Insights from olivine. Lithos, 170/171 . pp. 224-238. DOI 10.1016/j.lithos.2013.03.002.

[thumbnail of Geology-2013-Geldmacher-183-6.pdf]

Geldmacher, J. , Höfig, T., Hauff, F. , Hoernle, K. , Garbe-Schönberg, D. and Wilson, D. S. (2013) Influence of the Galápagos hotspot on the East Pacific Rise during Miocene superfast spreading. Geology, 41 (2). pp. 183-186. DOI 10.1130/G33533.1.

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Koppers, A. A. P., Yamazaki, T., Geldmacher, J. , Gee, J. S., Pressling, N. and Hoshi, H. and IODP Expedition 330 Scientific Party (2012) Limited latitudinal mantle plume motion for the Louisville hotspot . Nature Geoscience, 5 . pp. 911-917. DOI 10.1038/ngeo1638.

Geldmacher, J. , Hoernle, K. , Hanan, B. B., Blicher-Toft, J., Hauff, F. , Gill, J. B. and Schmincke, H. U. (2011) Hafnium isotopic variations in East Atlantic intraplate volcanism. Open Access Contributions to Mineralogy and Petrology, 162 (1). pp. 21-36. DOI 10.1007/s00410-010-0580-5.

[thumbnail of 306_Duggen_2008_GeochemicalZonationOfTheMiocene_Artzeit_pubid10345.pdf]

Duggen, S., Hoernle, K. , Klügel, A., Geldmacher, J. , Thirlwall, M., Hauff, F. , Lowry, D. and Oats, N. (2008) Geochemical zonation of the Miocene Alboràn Basin volcanism (westernmost Mediterranean): geodynamic implications. Contributions to Mineralogy and Petrology, 156 . pp. 577-593. DOI 10.1007/s00410-008-0302-4.

[thumbnail of 77_Geldmacher_2008_GeochemistryOfANewEnriched_Artzeit_pubid8405.pdf]

Geldmacher, J. , Hoernle, K. , Kluegel, A., van den Bogaard, P. and Bindeman, I. (2008) Geochemistry of a new enriched mantle type locality in the northern hemisphere: Implications for the origin of the EM-I source. Earth and Planetary Science Letters, 265 . pp. 167-182. DOI 10.1016/j.epsl.2007.10.001.

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Geldmacher, J. , Hoernle, K. A. , Klügel, A., van den Bogaard, P., Wombacher, F. and Berning, B. (2006) Origin and geochemical evolution of the Madeira-Tore Rise (eastern North Atlantic). Open Access Journal of Geophysical Research: Solid Earth, 111 (B9). B09206. DOI 10.1029/2005JB003931.

[thumbnail of Geldmacher et.al.pdf]

Geldmacher, J. , Hoernle, K. , Klügel, A., van den Bogaard, P. and Duggen, S. (2006) A geochemical transect across a heterogeneous mantle upwelling: Implications for the evolution of the Madeira hotspot in space and time. Lithos, 90 (1-2). pp. 131-144. DOI 10.1016/j.lithos.2006.02.004.

[thumbnail of Wilson et.al.pdf]

Wilson, D. S., Teagle, D. A. H., Alt, J. C., Banerjee, N. R., Umino, S., Miyashita, S., Acton, G. D., Anma, R., Barr, S. R., Belghoul, A., Carlut, J., Christie, D., Coggon, R. M., Cooper, K. M., Cordier, C., Crispini, L., Durand, S. R., Einaudi, F., Galli, L., Gao, Y., Geldmacher, J. , Gilbert, L. A., Hayman, N. W., Herrero-Bervera, E., Hirano, N., Holter, S., Ingle, S., Jiang, S., Kalberkamp, U., Kerneklian, M., Koepke, J., Laverne, C., Vasquez, H. L. L., Maclennan, J., Morgan, S., Neo, N., Nichols, H. J., Park, S. H., Reichow, M. K., Sakuyama, T., Sano, T., Sandwell, R., Scheibner, B., Smith-Duque, C. E., Swift, S. A., Tartarotti, P., Tikku, A. A., Tominaga, M., Veloso, E. A., Yamasaki, T., Yamazaki, S. and Ziegler, C. (2006) Drilling to Gabbro in Intact Ocean Crust. Science, 312 (5776). pp. 1016-1020. DOI 10.1126/science.1126090.

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Geldmacher, J. , Hoernle, K. , van den Bogaard, P., Duggen, S. and Werner, R. (2005) New 40Ar/39Ar age and geochemical data from seamounts in the Canary and Madeira volcanic provinces: support for the mantle plume hypothesis. Earth and Planetary Science Letters, 237 (1-2). pp. 85-101. DOI 10.1016/j.epsl.2005.04.037.

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Schwarz, S., Klügel, A., van den Bogaard, P. and Geldmacher, J. (2005) Internal structure of a volcanic rift system in the eastern North Atlantic: the Desertas rift zone, Madeira archipelago. Journal of Volcanology and Geothermal Research, 141 (1-2). pp. 123-155. DOI 10.1016/j.jvolgeores.2004.10.002.

[thumbnail of Geldmacher_et_al-2003-Geochemistry,_Geophysics,_Geosystems.pdf]

Geldmacher, J. , Hanan, B. B., Blichert-Toft, J., Harpp, K., Hoernle, K. , Hauff, F. , Werner, R. and Kerr, A. (2003) Hafnium isotopic variations in volcanic rocks from the Caribbean Large Igneous Province and Galápagos hotspot tracks. Open Access Geochemistry, Geophysics, Geosystems, 422 (7). 2002GC000477. DOI 10.1029/2002GC000477.

[thumbnail of Geldmacher et.al.pdf]

Geldmacher, J. , Troll, V. R., Emeleus, C. H. and Donaldson, C. H. (2002) Pb-isotope evidence for contrasting crustal contamination of primitive to evolved magmas from Ardnamurchan and Rum: implications for the structure of the underlying crust. Scottish Journal of Geology, 38 (1). pp. 55-61. DOI 10.1144/sjg38010055.

[thumbnail of Geldmacher et.al.pdf]

Geldmacher, J. , Hoernle, K. , van den Bogaard, P., Zankl, G. and Garbe-Schönberg, C. D. (2001) Earlier history of the >70-Ma-old Canary hotspot based on the temporal and geochemical evolution of the Selvagen Archipelago and neighboring seamounts in the eastern North Atlantic. Journal of Volcanology and Geothermal Research, 111 (1-4). pp. 55-87. DOI 10.1016/S0377-0273(01)00220-7.

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Geldmacher, J. , van den Bogaard, P., Hoernle, K. and Schmincke, H. U. (2000) The 40Ar/39Ar age dating of the Madeira Archipelago and hotspot track (eastern North Atlantic). Open Access Geochemistry, Geophysics, Geosystems, 1 (1008). DOI 10.1029/1999GC000018.

[thumbnail of art_10.1007_s004100050388.pdf]

Geldmacher, J. , Haase, K. M., Devey, C. W. and Garbe-Schönberg, C. D. (1998) The petrogenesis of Tertiary cone-sheets in Ardnamurchan, NW Scotland: petrological and geochemical constraints on crustal contamination and partial melting. Contributions to Mineralogy and Petrology, 131 (2-3). pp. 196-209. DOI 10.1007/s004100050388.

Articles in a Scientific Journal - without review

[thumbnail of Koppers et al 2013.pdf]

Koppers, A. A. P., Yamazaki, T. and Geldmacher, J. and IODP Expedition 330 Scientific Party (2013) IODP Expedition 330: Drilling the Louisville Seamount Trail in the SW Pacific. Open Access Scientific Drilling, 15 . pp. 11-22. DOI 10.2204/iodp.sd.15.02.2013.

[thumbnail of 2011EO050001_brr.pdf]

Sager, W. W., Sano, T. and Geldmacher, J. (2011) How do oceanic plateaus form? Clues from drilling at Shatsky Rise. Open Access Eos, Transactions American Geophysical Union, 92 (5). pp. 37-38. DOI 10.1029/2011EO050001.

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Sager, W. W., Sano, T. and Geldmacher, J. (2011) IODP Expedition 324: Ocean Drilling at Shatsky Rise Gives Clues about Oceanic Plateau Formation. Scientific Drilling (12). pp. 24-31. DOI 10.2204/iodp.sd.12.03.2011.

Books


Bürkner, G., Geldmacher, J. and Voß , T. (1999) So entstand Schleswig-Holstein: Die Entstehungsgeschichte eines von Gletschern geformten Landes. . GeoPrint Verlag , Elmshorn, 27 pp. ISBN 3-9806998-0-3


Bürkner, G., Geldmacher, J. and Voß, T. (1999) So entstand Schleswig-Holstein: Die Entstehungsgeschichte eines von Gletschern geformten Landes. . Geoprint, Kiel, 27 pp.

Book chapters

[thumbnail of Homrighausen etal.pdf] [thumbnail of Intraplate.pdf]

Homrighausen, S., Geldmacher, J. , Hoernle, K. and Rooney, T. (2021) Intraplate Volcanism. In: Encyclopedia of Geology. , ed. by Elias, S. and Alderton, D.. Elsevier, London, pp. 52-59, 8 pp. 2nd edition ISBN 978-0-08-102909-1 DOI 10.1016/B978-0-12-409548-9.12498-4.

[thumbnail of Geldmacher.pdf]

Geldmacher, J. , Werner, R., Hauff, F. and Uenzelmann-Neben, G. (2020) Marine Supervulkane und deren Auswirkungen in der Erdgeschichte. Open Access In: Vulkanismus und Gesellschaft: Zwischen Risiko, Vorsorge und Faszination. , ed. by Jorzik, O., Kandarr, J., Klinghammer, P. and Spreen, D.. ESKP-Themenspezial . Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany, pp. 117-120. DOI 10.2312/eskp.2020.2.5.6.

Presentations


Dürkefälden, A., Geldmacher, J. , Hauff, F. , Garbe-Schönberg, D., Portnyagin, M. , Schenk, J., Stipp, M. and Hoernle, K. (2023) The King’s Trough Complex: magmatic and geodynamic evolution of the Grand Canyon of the North Atlantic. [Talk] In: Oceanic Volcanism Workshop 2023. , 12.-15.09.2023, Kiel, Germany .


Dürkefälden, A., Geldmacher, J. , Portnyagin, M. , Werner, R., Hauff, F. , Hoernle, K. A. , Garbe-Schönberg, C. D. and Müller, D. (2022) SO265 - Papanin Ridge and Ojin Rise Seamounts (Northwest Pacific): Dual hotspot tracks formed by the Shatsky mantle plume. [Talk] In: Statuskonferenz Forschungsschiffe 2022. , 22.-23.02.2022, Online .

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Dürkefälden, A., Geldmacher, J. , Hauff, F. , Garbe-Schönberg, D., Portnyagin, M. , Lück, T., Werner, R., Müller, D. and Hoernle, K. (2020) Post-plateau volcanic evolution of Shatsky Rise (NW Pacific) – Papanin Ridge and Ojin Rise Seamount Province. Open Access [Talk] In: Goldschmidt 2020 Virtual Conference. , 21.06.-26.06.2020, - .


Geldmacher, J. , Hlawatsch, S. and Neumann, F. (2020) Sending scientists into classrooms: The online platform „Forschungsbörse“ linking schools with active reserch scientists. [Talk] In: GeoUtrecht 2020. , 24.-26.08.2020, Online .


Hoernle, K. , Homrighausen, S., Zhou, H. , Wartho, J. A. , Hauff, F. , Werner, R. and Geldmacher, J. (2020) A large-scale geochemical zonation of the African LLSVP recorded by mantle plumes?. [Talk] In: AGU Fall Meeting 2020. , 01.-17.12.2020, Online, San Francisco, USA .

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Homrighausen, S., Hoernle, K. , Zhou, H. , Geldmacher, J. , Wartho, J. A. , Hauff, F. , Werner, R., Jung, S. and Morgan, J. P. (2020) Compositionally distinct overlying hotspot tracks in the South Atlantic: Do primary mantle plumes trigger secondary upwellings?. Open Access [Talk] In: Goldschmidt 2020 Virtual Conference. , 21.06.-26.06.2020, - .

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O´Connor, J. M., Hoyer, P. A., Haase, K. M., Regelous, M., Homrighausen, S., Geldmacher, J. and Geissler, W. (2020) Is the Rio Grande Rise a Large Igneous Province or a Microcontinent?. Open Access [Talk] In: Goldschmidt 2020 Virtual Conference. , 21.06.-26.06.2020, - . DOI 10.46427/gold2020.1962.


Pank, K., Hansteen, T. , Geldmacher, J. , Garbe-Schönberg, D., Jicha, B. and Hoernle, K. A. (2020) Origin and evolution of the lowermost lava successions at Santorini volcano (Greece): insights from major and trace element composition of rocks from the submarine caldera wall. [Talk] In: Cities on Volcanoes Conference 2020. , 23.05.-27.05.2020, Heraklion, Kreta .


Hoernle, K. A. , Hauff, F. , Homrighausen, S., Rohde, J., Dürkefälden, A., Werner, R., Geldmacher, J. , Portnyagin, M. V. , Garbe-Schönberg, C. D., van den Bogaard, P. and Wartho, J. A. (2018) New Developments in Understanding the Origin of South Atlantic Intraplate Volcanism (Tristan-Gough-Walvis, Discovery Shona volcanic tracks). [Invited talk] In: GeoBonn 2018. , 02.09.-06.09.2018, Bonn, Germany .


Hoernle, K. , Homrighausen, S., Hauff, F. , Werner, R., Portnyagin, M. , Geldmacher, J. , Garbe-Schönberg, D., van den Bogaard, P. and Wartho, J. A. (2018) Geochemistry of South Atlantic Hotspots: Intimate Association of EMI & HIMU End Members. [Talk] In: Goldschmidt Conference 2018. , 12.08.-17.08.2018, Boston, USA .

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Homrighausen, S., Hoernle, K. , Geldmacher, J. , Hauff, F. , Portnyagin, M. , Werner, R., Schaefer, B. F., Wartho, J. A. and Garbe-Schönberg, D. (2018) Temporal and geochemical evolution of the Afanasy Nikitin -85° E Ridge, Central Indian Ocean, R/V Sonne cruise SO258/1 . Open Access [Talk] In: AGU Fall Meeting 2018. , 10.-14.12.2018, Washington, D.C., USA .


Geldmacher, J. , Tejada, M. L. G., Hauff, F. , Hoernle, K. , Garbe-Schönberg, D. and Heydolph, K. (2015) Late stage evolution of Shatsky Rise volcanism and possible connection to Hess Rise (NW Pacific). [Talk] In: GeoBerlin 2015. , 04.-07.10.2015, Berlin, Germany .

[thumbnail of Homrighausen.pdf]

Homrighausen, S., Hoernle, K. , Werner, R., Portnyagin, M. , Geldmacher, J. and Hauff, F. and SO233 Fahrtteilnehmer (2015) Walvis II: Hintergrund und erste Ergebnisse, Zeitliche und geochemische Entwicklung des Walvisrückens. [Talk] In: Statusseminar Meeresforschung mit FS SONNE 2015. , 12.-13.02.2015, Bremen . Tagungsband Statusseminar Meeresforschung mit FS SONNE 2015. ; pp. 162-165 .

[thumbnail of Werner.pdf]

Werner, R., Wagner, H. J., Mattheus, U., Geldmacher, J. and Homrighausen, S. and SO-234/1 Fahrtteilnehmer (2015) Verlauf und erste Ergebnisse der Ausbildungsfahrt SO-234/1 SPACES (Walvis Bay - Durban). [Talk] In: Statusseminar Meeresforschung mit FS SONNE 2015. , 12.-13.02.2015, Bremen . Tagungsband Statusseminar Meeresforschung mit FS SONNE 2015. ; pp. 171-174 .


Heydolph, K., Geldmacher, J. and Hoernle, K. (2012) The origin of the Shatsky Rise: Isotope geochemistry (Sr, Nd, IODP 64 Pb, Hf) of volcanic rocks from IODP Site U1347A. [Talk] In: IODP/ICDP Kolloquium 2012. , 07.-09.03.2012, Kiel, Germany .


Heydolph, K., Geldmacher, J. and Hoernle, K. (2011) The origin of an oceanic plateau: Isotope geochemistry (Sr, Nd, Pb and Hf) of volcanic rocks from IODP Site U1347 and ODP Site 1213 (Hf data) on the Shatsky Rise (Northwest Pacific). [Talk] In: AGU Fall Meeting 2011. , 05.-09.12.2011, San Francisco, USA .


Koppers, A. P., Yamazaki, T. and Geldmacher, J. and IODP Expedition 330 Scientific Party (2011) On the Possible Relation of the Louisville Hotspot and Ontong Java Plateau from Integrated Ocean Drilling Program Expedition 330 Results. [Invited talk] In: AGU Fall Meeting 2011. , 05.-09.12.2011, San Francisco, USA .


Koppers, A. P., Yamazaki, T. and Geldmacher, J. and IODP Expedition 330 Scientific Party (2011) Geodynamic Inferences from Integrated Ocean Drilling Program Expedition 330 to the Louisville Seamount Trail. [Talk] In: AGU Fall Meeting 2011. , 05.-09.12.2011, San Francisco, USA .


Romanova, I., Murphy, D. T., Geldmacher, J. and Heydolph, K. (2011) Sr, Nd, Hf and Pb isotope systematics of basaltic samples from IODP Site U1349A, Ori Massif of the Shatsky Rise Oceanic Plateau, Northwest Pacific. [Talk] In: AGU Fall Meeting 2011. , 05.-09.12.2011, San Francisco, USA .

[thumbnail of Abstract: Geophysical Research Abstracts, 11.2009, EGU2009-4271]

Duggen, S., Hoernle, K. , Hauff, F. , Park, S. H. and Geldmacher, J. (2009) Recycling of geochemically heterogenous oceanic crust: significance for the origin of ocean island basalts. [Talk] In: EGU General Assembly 2009. , 19.04.-24.04, Vienna, Austria .

[thumbnail of Abstract: Geophysical Research Abstracts, 11.2009, EGU2009-2528]

Geldmacher, J. , Hanan, B. B., Hoernle, K. and Blichert-Toft, J. (2009) Hafnium isotopic variations in East Atlantic intraplate volcanism. [Talk] In: EGU General Assembly 2009. , 19.-24.04, Vienna, Austria .

Conference posters


Dürkefälden, A., Geldmacher, J. , Hauff, F. , Garbe-Schönberg, D., Portnyagin, M. , Schenk, J., Stipp, M. and Hoernle, K. (2023) Magmatic and geodynamic evolution of the King’s Trough Complex – The Grand Canyon of the North Atlantic. [Poster] In: Goldschmidt Conference 2023. , 9.-14.07.2023, Lyon, France . DOI 10.7185/gold2023.17418.


Dürkefälden, A., Geldmacher, J. , Hauff, F. , Garbe-Schönberg, D., Portnyagin, M. , Schenk, J., Stipp, M. and Hoernle, K. (2023) Magmatic and geodynamic evolution of the King’s Trough Complex – The Grand Canyon of the North Atlantic. [Poster] In: GeoBerlin 2023. , 03.-07.09.2023, Berlin, Germany .

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Geldmacher, J. , Long, X., Hoernle, K. , Hauff, F. , Wartho, J. A. and Garbe-Schönberg, D. (2020) Origin of isolated seamounts in the Canary Basin (East Atlantic): The role of plume material in the origin of seamounts not associated with hotspot tracks. Open Access [Poster] In: Goldschmidt 2020 Virtual Conference. , 21.06.-26.06.2020, - .


Takashi, S., Tejada, M. L., Neal, C. R., Coffin, M., Nakanishi, M., Michael, P. J., Geldmacher, J. , Hanyu, T., Miura, S., Timm, C. , Koppers, A. P. A., Suetsugu, D., Tonegawa, T., Ishikawa, A., Shimizu, K. and Castillo, P. (2020) Exploring the World’s Largest LIP: Testing the Ontong Java Nui hypothesis. [Poster] In: JpGU-AGU Meeting 2020. , 24.05.-28.05.2020, Chiba, Japan .


Geldmacher, J. , Lück, T., Dürkefälden, A., Hauff, F. , Garbe-Schönberg, D., Portnyagin, M. , Werner, R., Müller, D. and Hoernle, K. (2019) Late-stage evolution of Shatsky Rise oceanic plateau (northwest Pacific Ocean) – First results of R/V SONNE expedition SO265. [Poster] In: AGU Fall Meeting 2019. , 09.-13.12.2019, San Francisco, USA .

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Long, X., Geldmacher, J. , Hoernle, K. , Hauff, F. , Wartho, J. A. and Garbe-Schönberg, D. (2019) Demenitskoy Smt. (East Atlantic) and the importance of small, isolated intraplate seamounts in the ocean basins. Open Access [Poster] In: GeoMünster 2019. , 22.-25.09.2019, Münster, Germany .


van der Zwan, F. M. , Long, X., Augustin, N. , Geldmacher, J. , Le Saout, M. , Wölfl, A. C. , Hauff, F. , Hoernle, K. , Schade, M., Hübscher, C. and Garbe-Schönberg, D. (2019) The Origin of the Bathymetrist Seamounts – A Geochemical and Morphological Study. [Poster] In: Goldschmidt Conference 2019. , 18.-23.08.2019, Barcelona, Spain .

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Geldmacher, J. , Long, X., Hoernle, K. , Hauff, F. , Wartho, J. A. , Garbe-Schönberg, D. and Grevemeyer, I. (2018) Origin and age of the Researcher Ridge Seamount Chain (Central Atlantic). Open Access [Poster] In: AGU Fall Meeting 2018. , 10.-14.12.2018, Washington, D.C., USA .


Long, X., Geldmacher, J. , Hoernle, K. A. , Hauff, F. , Wartho, J. A. , Garbe-Schönberg, D. and Grevemeyer, I. (2018) Age and origin of Researcher Ridge in Central Atlantic. [Poster] In: GeoBonn 2018. , 02.09.-06.09.2018, Bonn, Germany .

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Long, X., Geldmacher, J. , Hoernle, K. and Hauff, F. (2017) The Origin of Researcher Ridge (Central Atlantic Ocean). Open Access [Poster] In: GeoBremen 2017. , 24.-29.09.2017, Bremen, Germany .


Uenzelmann-Neben, G., Huber, B., Bohaty, S., Geldmacher, J. , Hoernle, K. , Macleod, K., Poulsen, C., Voigt, S., Wagner, T., Watkins, D., Werner, R. and Westerhold, T. (2016) Drilling the Agulhas Plateau and Transkei Basin to reconstruct the Cretaceous - Paleocene Tectonic and Climatic evolution of the Southern Ocean Basin. [Poster] In: IODP/ICDP Kolloquium 2016. , 14.-16.03 2016, Heidelberg, Germany .

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Geldmacher, J. , Tejada, M. L. G., Hauff, F. , Hoernle, K. , Garbe-Schönberg, D. and Heydolph, K. (2015) Shatsky and Hess Rise in the NW Pacific: Genetically-related twins or just neighbors?. [Poster] In: Goldschmidt Conference 2015. , 16.-21.08.2015, Prague, Czech Republic. .


Homrighausen, S., Hoernle, K. , Hauff, F. , Portnyagin, M. , Werner, R., Geldmacher, J. and Garbe-Schönberg, C. D. (2015) Late-Stage HIMU-Type Volcanism on the Walvis Ridge: Not just Part of an Age-Progressive Tristan-Gough Hotspot Track. [Poster] In: AGU Fall Meeting 2015. , 14.-18.12.2015, San Francisco, USA .


Geldmacher, J. , Li, S., Hauff, F. , Garbe-Schönberg, D., Yu, S., Zhao, S. and Rausch, S. (2014) Composition and timing of carbonate vein precipitation within the igneous basement of the Early Cretaceous Shatsky Rise, NW Pacific. [Poster] In: IODP/ICDP Kolloquium Erlangen 2014. , 17.-19.03.2014, Erlangen .


Geldmacher, J. , Li, S., Hauff, F. , Garbe-Schönberg, C. D., Yu, S., Zhao, S. and Rausch, S. (2013) Composition and timing of carbonate vein precipitation within the igneous basement of the Early Cretaceous Shatsky Rise, NW Pacific. [Poster] In: AGU Fall Meeting 2013. , 09.-13.12.2013, San Francisco, USA .


Geldmacher, J. , Sano, T., Sager, V., Heydolph, K. and Almeev, R. and IODP Exp. 324 Scientists (2013) The origin of Shatsky Rise: What we have learned from IODP Exp. 324. [Poster] In: IODP/ICDP Kolloquium 2013. , 25.03.-27.03.2013, Freiberg .

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Geldmacher, J. , Heydolph, K., Murphy, D. T., Romanova, I., Mahoney, J. J. and Hoernle, K. (2012) Combined Sr, Nd, Pb and Hf isotopic constraints on the origin of Shatsky Rise (NW Pacific). [Poster] In: AGU Fall Meeting 2012. , 03.-07.12.2012, San Francisco, USA .


Geldmacher, J. , Höfig, T., Hauff, F. , Hoernle, K. , Garbe-Schönberg, D. and Wilson, D. S. (2012) Evidence for influence of the Galápagos hotspot on the East Pacific Rise MORB composition during times of superfast spreading. [Poster] In: IODP-ICDP Kolloquium 2012. , 07.-09.03.2012, Kiel .


Geldmacher, J. , Höfig, T., Hauff, F. , Hoernle, K. and Garbe-Schönberg, D. (2011) Evidence for influence of the Galápagos hotspot on the East Pacific Rise MORB composition during times of superfast spreading. [Poster] In: AGU Fall Meeting 2011. , 05.-09.12.2011, San Francisco, USA .


Heydolph, K., Geldmacher, J. and Hoernle, K. (2011) The early stage of Shatsky Rise plateau formation: Isotope-geochemical characterization (Srr, Nd, Pb and Hf) of volcanic rocks from IODP site U1347 (Shatsky Rise, Northwest Pacific). [Poster] In: IODP/ICDP Kolloquium 2011. , 14.03.-16.03.2011, Münster, Germany .

Theses - not published by a publisher

Reports - Cruise Reports

[thumbnail of awi_b0ec117cc7241b363123b5f56bba467ca50e5bad.pdf]

Geldmacher, J. , Micallef, A. , Archontikis, O., Felgendreher, M., Ferrante, G. M., Ford, J., Grech Licari, J. and Hauff, F. (2023) Submarine volcanism in the western Sicilian Channel, Cruise No. M191 SUAVE (GPF 21-1_036), 16.07.2023 - 05.08.2023, Algeciras (Spain) - Piraeus (Greece). Open Access . METEOR-Berichte, M191 . UNSPECIFIED, Bonn, 113 pp. DOI 10.48433/cr_m191.

[thumbnail of 392PR.PDF]

Uenzelmann-Neben, G., Bohaty, S. M., Childress, L. B., Archontikis, O. A., Batenburg, S. J., Bijl, P. K., Burkett, A. M., Chanda, P., Coenen, J. J., Dallanave, E., Davidson, P. C., Doiron, K. E., Geldmacher, J. , Gürer, D., Haynes, S. J., Herrle, J. O., Ichiyama, Y., Jana, D., Jones, M. M., Kato, C., Kulhanek, D. K., Li, J., Liu, J., McManus, J., Minakov, A. N., Penman, D. E., Sprain, C. J., Tessin, A. C., Wagner, T. and Westerhold, T. (2022) Expedition 392 Preliminary Report Agulhas Plateau Cretaceous Climate: drilling the Agulhas Plateau and Transkei Basin to reconstruct the Cretaceous–Paleogene tectonic and climatic evolution of the Southern Ocean basin, 5 February–7 April 2022. Open Access . International Ocean Drilling Program Preliminary Reports, 392 . IODP, 56 pp. DOI 10.14379/iodp.pr.392.2022.

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Dürkefälden, A., Geldmacher, J. , Hauff, F. and Werner, R. (2020) Origin and Geodynamic Evolution of King's Trough: The Grand Canyon of the North Atlantic, Cruise No. M168 (GPF 20-3_080), November 08 - December 08, 2020, Emden (Germany) - Emden (Germany). Open Access . METEOR-Berichte, M168 . Gutachterpanel Forschungsschiffe, Bonn, 139 pp. DOI 10.48433/cr_m168.

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Geissler, W., Krumm, S., O'Connor, J., Geldmacher, J. , Altenbernd, T., Homrighausen, S., Geils, J., Hoyer, P., Lehmann, C. and Shearing, J. (2019) The Rio Grande Rise and Jean Charcot Seamount Chain - microcontinents or the trail of the Tristan-Gough hotspot? Cruise No. MSM 82, 18 March 2019 - 24 April 2019, Montevideo (Uruguay) - Montevideo (Uruguay), RIOGRANDE. Open Access . MARIA S. MERIAN-Berichte, MSM82 . Gutachterpanel Forschungsschiffe, Bonn, 200 pp. DOI 10.2312/cr_msm82.

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Geldmacher, J., Werner, R. and Hauff, F., eds. (2018) RV SONNE Fahrtbericht / Cruise Report SO265 - SHATSKY EVOLUTION: Evolution of the Shatsky Rise Hotspot System, Yokohama (Japan) – Kaohsiung (Taiwan), 26.08. – 11.10.2018 . Open Access . GEOMAR Report, N. Ser. 047 . GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, Germany, 258 pp. DOI 10.3289/geomar_rep_ns_47_2018.

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Geldmacher, J. , Cuno, P., Hansteen, T. , Ioannou, T., Kosbue, P., Kwasnitschka, T. , Lampridou, D., Matthiessen, T., Meier, A., Nomikou, P., Pieper, M. and Suck, I. (2017) POS511 Cruise Report, The Christiana-Santorini Volcanic Complex, 01.04.2017 (Heraklion) - 22.04.2017 (Heraklion). Open Access . GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, 35 pp. DOI 10.3289/CR_POS511.

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Koppers, A. A. P., Yamazaki, T. and Geldmacher, J., eds. and IODP Expedition 330 Scientists (2012) Louisville Seamount Trail : Expedition 330 of the riserless drilling platform from and to Auckland, New Zealand, Sites U1372–U1377, 13 December 2010–11 February 2011. . Proceedings of the Integrated Ocean Drilling Program, 330 . UNSPECIFIED, 115 pp.

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Koppers, A. A., Yamazaki, T., Geldmacher, J. , Anderson, L., Beier, C., Buchs, D. M., Chen, L., Cohen, B., Deschamps, F., Dorais, M., Ebuna, D., Fitton, J., Fulton, P. M., Ganbat, E., Gee, J. S., Hamelin, C., Hanju, T., Hoshi, H., Kalnins, L., Kell, J., Machida, S., Mahoney, J. J., Moriya, K., Nichols, A. R. I., Pressling, N. J., Rausch, S., Sano, S., Sylvan, J. B. and Williams, R. and Expedition 330 Scientists (2011) Louisville Seamount Trail: implications for geodynamic mantle flow models and the geochemical evolution of primary hotspots. , 330 . IODP Preliminary Report, 330 . UNSPECIFIED, Ohne Zählg. pp. DOI 10.2204/iodp.pr.330.2011.

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Hoernle, K. A. , Agouzouk, A., Berning, B., Buchmann, T., Christiansen, S., Duggen, S., Geldmacher, J. , Hoffmann, L. J. , Imholz, P., Kahl, G., Kaiser, A., Kischkies, S., Klügel, A., Löffler, S., Mouloudj, M., Muinos, S., Neufeld, S., Ochsenhirt, W. T., Rechlin, A., Reicherter, K., Rodrigues, D., Schwarz, S., Steinborn, W., Vetter, S., Werner, R. and Wohlgemuth-Ueberwasser, C. (2003) Cruise Report No. M51, Leg 1. . Meteor-Berichte, 03-1: "Ostatlantik-Mittelmeer-Schwarzes Meer" Part 1 . Institut für Meereskunde Hamburg, Hamburg, Germany, 38 pp.

Reports - Weekly reports

[thumbnail of Wochenbericht_M-191-Nr-4_de.pdf] [thumbnail of Wochenbericht_M-191-Nr-4_en.pdf]

Geldmacher, J. (2023) 4. Wochenbericht RV METEOR Expedition M191. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

[thumbnail of Wochenbericht_M-191_Nr-2_de.pdf] [thumbnail of Wochenbericht_M-191_Nr-2_en.pdf]

Geldmacher, J. (2023) 2. Wochenbericht RV METEOR Expedition M191. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

[thumbnail of wochenbericht-m191-01.pdf] [thumbnail of weeklyreport-m191-01.pdf]

Geldmacher, J. (2023) 1. Wochenbericht RV METEOR Expedition M191. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

[thumbnail of 3. Wochenbericht M191.pdf] [thumbnail of 3. Weekly Report M191.pdf]

Geldmacher, J. (2023) 3. Wochenbericht RV METEOR Expedition M191. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

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Geldmacher, J. (2021) 5. Wochenbericht Expedition M176 „BISCAY CONECTION“. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

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Geldmacher, J. (2021) 4. Wochenbericht Expedition M176 „BISCAY CONECTION“. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

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Geldmacher, J. (2021) 2. Wochenbericht Expedition M176 „BISCAY CONECTION“. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

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Geldmacher, J. (2021) 3. Wochenbericht Expedition M176 „BISCAY CONECTION“. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

[thumbnail of M176- 1. WB_de.pdf]

Geldmacher, J. (2021) 1. Wochenbericht Expedition M176 „BISCAY CONECTION“. Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2 pp.

[thumbnail of 6_Wochenbericht SO265.pdf] [thumbnail of 6_Weekly Report SO265.pdf]

Geldmacher, J. (2018) 6. Wochenbericht SO265 - SHATSKY EVOLUTION. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of SO265 Wochenbericht_1.pdf] [thumbnail of SO265 Weekly Report_1.pdf]

Geldmacher, J. (2018) 1. Wochenbericht SO265 - SHATSKY EVOLUTION. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of 2_Wochenbericht SO265.pdf] [thumbnail of 2_Weekly Report SO265.pdf]

Geldmacher, J. (2018) 2. Wochenbericht SO265 - SHATSKY EVOLUTION. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of 3_Wochenbericht SO265.pdf] [thumbnail of so265-wob3e.pdf]

Geldmacher, J. (2018) 3. Wochenbericht SO265 - SHATSKY EVOLUTION. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of 4_Wochenbericht SO265.pdf] [thumbnail of 4_Weekly Report SO265_engl.pdf]

Geldmacher, J. (2018) 4. Wochenbericht SO265 - SHATSKY EVOLUTION. Open Access . UNSPECIFIED, 4 pp.

[thumbnail of so265-wob5.pdf] [thumbnail of so265-wob5e.pdf]

Geldmacher, J. (2018) 5. Wochenbericht SO265 - SHATSKY EVOLUTION. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of POS511 Wochenbericht 1 - Geldmacher-1.pdf]

Geldmacher, J. and Scientific Party POS511 (2017) 1. Wochenbericht POS511. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of POS 511 Weekly Science Report_2.pdf]

Geldmacher, J. and Scientific Party POS511 (2017) 2. Wochenbericht POS511. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of POS 511 Weekly Science Report_3.pdf]

Geldmacher, J. and Scientific Party POS511 (2017) 3. Wochenbericht POS511. Open Access . UNSPECIFIED, 2 pp.

This list was generated on Thu Feb 22 16:20:43 2024 CET.