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- Christian Hansen
Dr. Christian Hansen |
Telefon: |
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Fax: |
+49 421 218-65429 |
E-Mail: |
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Raum: |
GEO 5320 |
Expeditions
scheduled for 16 Nov 2023 - 29 Dez 2023 | SO301 - R/V Sonne | Port Louis - Port Louis | Kairei Hydrothermal Vent Field / Central Indian Ridge [KaBe / SCIROCCO] |
scheduled for 08 Jun 2023 - 08 Jul 2023 | M190 - R/V Meteor | Las Palmas - Algeciras | Hydrothermal Venting / Mid Atlantic Ridge [DIVE@MAR] |
06 Mar 2020 - 22 Apr 2020 | SO273 - R/V Sonne | Cape Town - Emden | Petrology and Hydrothermalism / Marion Rise [MARION] |
22 Dec 2016 - 21 Jan 2017 | SO253 - R/V Sonne | Noumea - Auckland | Hydrothermalism in Intraoceanic Arcs / Kermadec Arc [HYDROTHERMADEC] |
09 Nov 2013 - 16 Dec 2013 | PS81 - R/V Polarstern | Cape Town - Cape Town | Hydrothermal Plume Hunting / Southwest Indian Ridge [SWIR] |
Publications
- Hansen CT, Kleint C, Böhnke S, Klose L, Adam‐Beyer N, Sass K, Zitoun R, Sander SG, Indenbirken D, Dittmar T, Koschinsky A, Perner M (2022): Impact of high Fe‐concentrations on microbial community structure and dissolved organics in hydrothermal plumes: an experimental study. Scientific Reports 12:20723.
| doi:10.1038/s41598-022-25320-0 | - Wilckens FK, Hansen CT, Diehl A, Bach W, Kasemann SA (2022): Sources of Mg enrichments in Vent Fluids from the Kermadec Arc recorded by Li, B and Mg Isotopes. Geochemistry, Geophysics, Geosystems 23(11), e2022GC010471.
| doi:10.1029/2022GC010471 | - Hansen CT, Lissenberg CJ, Kahl W-A, Bach W (2022): Hydrothermal troctolite alteration at 300 and 400°C – Insights from flexible Au-reaction cell batch experimental investigations. American Mineralogist.
| doi:10.2138/am-2021-7832 | - Albers E, Shervais JW, Hansen CT, Ichiyama Y, Fryer P (2022): Shallow depth, substantial change: fluid-metasomatism causes major compositional modifications of subducted volcanics (Mariana forearc). Frontiers in Earth Science - Petrology 10:826312.
| doi:10.3389/feart.2022.826312 | - Dede B, Hansen CT, Neuholz R, Schnetger B, Kleint C, Walke S, Bach W, Amann R, Meyerdierks A (2022): Niche differentiation of sulfur-oxidizing bacteria (SUP05) in submarine hydrothermal plumes. ISME Journal.
| doi:10.1038/s41396-022-01195-x | - Song M, Schubotz F, Kellermann MY, Hansen CT, Bach W, Teske AP, Hinrichs K-U (2021): Formation of ethane and propane via abiotic reductive conversion of acetic acid in hydrothermal sediments. PNAS 118(47), e2005219118.
| doi:10.1073/pnas.2005219118 | - Geilert S, Albers E, Frick DA, Hansen CT, von Blankenburg F (2021): Systematic changes in serpentine Si isotope signatures across the Mariana forearc – a new proxy for slab dehydration processes. Earth and Planetary Science Letters 575, 117193.
| doi:10.1016/j.epsl.2021.117193 | - Noowong A, Gomez-Saez GV, Hansen CT, Schwarz-Schampera U, Koschinsky A, Dittmar T (2021): Imprint of Kairei and Pelagia deep-sea hydrothermal systems (Indian Ocean) on marine dissolved organic matter. Organic Geochemistry 152, 104141.
| doi:10.1016/j.orggeochem.2020.104141 | - Merder J, Freund JA, Feudel U, Hansen CT, Hawkes JA, Jacob B, Klaproth K, Niggemann J, Noriega-Ortega BE, Osterholz H, Rossel PE, Seidel M, Singer G, Stubbins A, Waska H, Dittmar T (2020): ICBM-OCEAN: Processing ultrahigh-resolution mass spectrometry data of complex molecular mixtures. Analytical Chemistry 92(10), 6832-6838.
| doi:10.1021/acs.analchem.9b05659 | - Hansen CT, Niggemann J, Giebel H-A, Simon M, Bach W, Dittmar T (2019): Biodegradability of hydrothermally altered deep-sea dissolved organic matter. Marine Chemistry 17, 103706
| doi:10.1016/j.marchem.2019.103706 | - Hansen CT, Meixner A, Kasemann SA, Bach W (2017): New insight on Li and B isotope fractionation during serpentinization derived from batch reaction investigations. Geochimica et Cosmochimica Acta 217, 51-79.
| doi:10.1016/j.gca.2017.08.014 | - Hawkes JA, Hansen CT, Goldhammer T, Bach W, Dittmar T (2016): Molecular alteration of marine dissolved organic matter under experimental hydrothermal conditions. Geochimica et Cosmochimica Acta 175, 68-85.
| doi:10.1016/j.gca.2015.11.025 | - Kahl W-A, Hansen CT, Bach W (2016): A new X-ray-transparent flow-through reaction cell for a μ-CT-based concomitant surveillance of the reaction progress of hydrothermal mineral–fluid interactions. Solid Earth 7, 651-658.
| doi:10.5194/se-7-651-2016 | - Hawkes JA, Rossel PE, Stubbins A, Butterfield D, Connely DP, Achterberg EP, Koschinsky A, Chavagnac V, Hansen CT, Bach W, Dittmer T (2015): Efficient removal of recalcitrant deep-ocean dissolved organic matter during hydrothermal circulation. Nature Geoscience 8(11), 856-860.
| doi:10.1038/ngeo2543 | - Kiel S, Hansen C, Nitzsche KN, Hansen BT (2014): Using 87Sr/86Sr ratios to date fossil methane seep deposits: Methodological requirements and an example from the Great Valley Group, California. J. Geol., 122(4), 353-366.
| doi:10.1086/676594 | - Brandmeier M, Erasmi S, Hansen C, Höweling A, Nitzsche K, Ohlendorf T, Mamani M, Wörner G (2013): Mapping patterns of mineral alteration in volcanic terrains using ASTER data and field spectrometry in Southern Peru. J. South Am. Earth Sci., 48, 296-314.
| doi:10.1016/j.jsames.2013.09.011 |