{"id":1812,"date":"2022-03-30T08:10:24","date_gmt":"2022-03-30T08:10:24","guid":{"rendered":"https:\/\/andrea-koschinsky.org\/?page_id=1812"},"modified":"2025-02-05T21:28:54","modified_gmt":"2025-02-05T21:28:54","slug":"katja-schmidt","status":"publish","type":"page","link":"https:\/\/andrea-koschinsky.org\/pt\/alumni\/katja-schmidt\/","title":{"rendered":"Dr. Katja Schmidt  (PostDoc until 2017)"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/andrea-koschinsky.org\/wp-content\/uploads\/2022\/03\/DSC02149-1-1024x971.jpg\" alt=\"\" class=\"wp-image-1826\" width=\"343\" height=\"325\" srcset=\"https:\/\/andrea-koschinsky.org\/wp-content\/uploads\/2022\/03\/DSC02149-1-1024x971.jpg 1024w, https:\/\/andrea-koschinsky.org\/wp-content\/uploads\/2022\/03\/DSC02149-1-300x285.jpg 300w, https:\/\/andrea-koschinsky.org\/wp-content\/uploads\/2022\/03\/DSC02149-1-768x729.jpg 768w\" sizes=\"auto, (max-width: 343px) 100vw, 343px\" \/><figcaption>Picture by Thomas Aigner<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Dr. Katja Schmidt is a marine geochemist who has been a Ph.D. student and PostDoc at Jacobs University Bremen from 2004 to 2017. At present, she works at the German Federal Institute for Geosciences and Resources (BGR), where she is the Head of the Marine Geology Laboratory in the Department of Marine Resource Exploration. She is still a close collaborator of the workgroup and often meets her former colleagues on research expeditions, in which both JUB and the BGR are involved. Examples include the JPI-Oceans project &#8220;MiningImpact&#8221; or the recent TRAM project, led by Andrea Koschinsky. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Research foci and interests<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Trace element and radiogenic isotope geochemistry, aqueous geochemistry, igneous geochemistry, trace element cycling in aqueous systems, biogeochemical behavior, and fate of trace metals at ocean interfaces (land-sea, sediment-water, hydrothermal vent sites)<\/li><li>Trace metal speciation and role of nanoparticles and colloids in controlling trace metal fluxes and bioavailability, trace metal uptake at biological interfaces<\/li><li>marine mineral deposits: formation, resource potential, and archive applications<\/li><li>Fate and impact of technology-critical elements and anthropogenic micropollutants in the environment, metal ecotoxicology<\/li><li>Early diagenetic processes in deep-sea sediments, impacts of deep-sea mining activities on biogeochemical processes in surface sediments, benthic layer, and the water column<\/li><li>High-temperature fluid geochemistry of active hydrothermal systems, fingerprinting of host rocks and water-rock-ore interaction, hydrothermal export fluxes<\/li><li>Application and development of innovative, new methodological and analytical approaches for trace metal studies and monitoring purposes<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Marine research expeditions (selection)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>2001&nbsp;&nbsp;&nbsp;RV SONNE cruise SO154,&nbsp;CARIBFLUX, submarine hydrothermal mineralizations and fluids off the Lesser Antilles Island Arc. Caribbean Sea:&nbsp;<em>Hydroacoustic mapping, Geochemistry of rocks<\/em><\/li><li>2005&nbsp;&nbsp;&nbsp;RV METEOR cruise M64\/2,&nbsp;HYDROMAR II, Long term study of hydrothermalism and biology at the Logatchev field, MAR. Atlantic Ocean:&nbsp;<em>fluid geochemistry<\/em><\/li><li>2007&nbsp;&nbsp;&nbsp;RV M.S.MERIAN cruise MSM04\/3,&nbsp;HYDROMAR III, Temporal and spatial variability of hydrothermal, geochemical and biological systems at the Logatchev hydrothermal vent field. MAR, Atlantic Ocean:&nbsp;<em>fluid geochemistry (Lead PI)<\/em><\/li><li>2008&nbsp;&nbsp;&nbsp;RV L\u2019ATALANTE cruise Ata2,&nbsp;MARSUED IV,&nbsp;hydrothermal activity southern MAR 4\u00b048\u2019S, lower crust inside corner high 5\u00b0S. Atlantic Ocean:&nbsp;<em>fluid geochemistry (Co PI)<\/em><\/li><li>2018&nbsp;&nbsp;&nbsp;RV SONNE cruise SO262, BGR exploration cruise MANGAN2018, CCZ\/German manganese nodule contact area. Pacific Ocean:&nbsp;<em>water and sediment geochemistry (Lead PI)<\/em><\/li><li>2018&nbsp;&nbsp;&nbsp;RV SONNE cruise SO262, BGR exploration cruise MANGAN2018, CCZ\/German manganese nodule contact area. Pacific Ocean:&nbsp;<em>water and sediment geochemistry (Lead PI)<\/em><\/li><li>2019&nbsp;&nbsp;&nbsp;RV SONNE cruise SO268\/2, NODULEMONITORING \u2013 MININGIMPACT research project, environmental baseline investigations CCZ\/German and Belgian manganese nodule contract areas. Pacific Ocean:&nbsp;<em>water and sediment geochemistry (Co-PI). <\/em>Blog:&nbsp;<a href=\"https:\/\/www.oceanblogs.org\/eadsm\">https:\/\/www.oceanblogs.org\/eadsm<\/a><\/li><li>2020&nbsp;&nbsp;&nbsp;RV METEOR cruise M169, TRAM, input of&nbsp;critical high-technology metals in the southern North Sea.&nbsp;North Sea and Elbe, Weser, Ems river estuaries:&nbsp;<em>trace metal geochemistry (Co-PI)<\/em><\/li><li>Blog:&nbsp;<a href=\"https:\/\/www.jacobs-university.de\/blog-post-m169\">https:\/\/www.jacobs-university.de\/blog-post-m169<\/a><\/li><li>2021&nbsp;&nbsp;&nbsp;MV ISLAND PRIDE cruise IP21, BGR and MININGIMPACT, environmental monitoring of collector test, CCZ\/German and Belgian nodule contract area. Pacific Ocean:&nbsp;<em>water and sediment geochemistry (Lead PI)<\/em><\/li><li>Blog:<a href=\"https:\/\/www.bgr.bund.de\/EN\/Themen\/MarineRohstoffforschung\/MiningImpact-Logbuch\/aktuelles_inhaltsverzeichnis_node_en.html\">https:\/\/www.bgr.bund.de\/EN\/Themen\/MarineRohstoffforschung\/MiningImpact-Logbuch\/aktuelles_inhaltsverzeichnis_node_en.html<\/a><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Land-based fieldwork<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Riverine and estuarine water sampling campaigns in Greenland, Sweden, Iceland, Brazil, Germany<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Publications in cooperation with Andrea Koschinsky<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Koschinsky, A.;&nbsp;<strong>Schmidt, K.<\/strong>, Garbe-Sch\u00f6nberg, D. <strong>(2020)<\/strong>: Geochemical time series of hydrothermal fluids from the slow-spreading Mid-Atlantic Ridge: Implications of medium-term stability.&nbsp;<em>Chemical Geology<\/em>&nbsp;552, 119760.<\/li><li><strong>Schmidt, K.<\/strong>, Garbe-Sch\u00f6nberg, D., Hannington, M., Anderson, M., B\u00fchring, B., Haase, K., Haruel, C., Lupton, J., Koschinsky, A. <strong>(2017)<\/strong>: Boiling vapour-type fluids from the Nifonea vent field (New Hebrides Island Arc, Vanuatu, SW Pacific): Geochemistry of an early-stage hydrothermal system.&nbsp;<em>Geochimica et Cosmochimica Acta&nbsp;<\/em>207, 185\u2013209<em>.<\/em><\/li><li>P\u00f6hle, S.,&nbsp;<strong>Schmidt, K.<\/strong>, Koschinsky, A. <strong>(2014)<\/strong>: Determination of Ti, Zr, Nb, V, W and Mo in seawater by a new online-preconcentration method and subsequent ICP\u2013MS analysis,&nbsp;<em>Deep Sea Research Part I Oceanographic Research Papers<\/em>, 98, 83-93.<\/li><li>Bau, M.,&nbsp;<strong>Schmidt, K.<\/strong>, Koschinsky, A., Hein, J., Kuhn, T., Usui, A. <strong>(2014)<\/strong>: Discriminating between different genetic types of marine ferro-manganese crusts and nodules based on rare earth elements and yttrium,&nbsp;<em>Chemical Geology<\/em>, 381, 1-9.<\/li><li><strong>Schmidt, K.<\/strong>, Bau, M., Hein, J., Koschinsky, A. <strong>(2014)<\/strong>: Fractionation of Zr-Hf and Nb-Ta during scavenging from seawater by hydrogenetic ferromanganese crusts.&nbsp;<em>Geochimica et Cosmochimica Acta<\/em>&nbsp;140. 468-487.<\/li><li>Klevenz, V., Bach, W.,&nbsp;<strong>Schmidt, K.<\/strong>, Hentscher, M., Koschinsky, A., Petersen, S. <strong>(2012)<\/strong>: Geochemistry of vent fluid particles formed during initial hydrothermal fluid-seawater mixing along the Mid-Atlantic Ridge.&nbsp;<em>Geochemistry, Geophysics, Geosystems<\/em>&nbsp;12 (10).<\/li><li><strong>Schmidt, K.,&nbsp;<\/strong>Garbe-Sch\u00f6nberg, D., Koschinsky, A., Strauss, H., Jost, C.L., Klevenz, V., K\u00f6niger, P. <strong>(2011)<\/strong>: Fluid elemental and stable isotope composition of the Nibelungen hydrothermal field (8\u00b018&#8217;S, Mid-Atlantic Ridge): Constraints on fluid-rock interaction in heterogeneous lithosphere.&nbsp;<em>Chemical Geology<\/em>&nbsp;280, 1-18.<\/li><li>Marbler, H., Koschinsky, A., Pape, T., Seifert, R., Weber, S., Baker, E. T., Carvalho, L.M. de,&nbsp;<strong>Schmidt.K.<\/strong>&nbsp;<strong>(2010)<\/strong>: Geochemical and physical structure of the hydrothermal plume at the ultramafic-hosted Logatchev hydrothermal field at 14\u00b045\u2032N on the Mid-Atlantic Ridge.&nbsp;<em>Marine Geology<\/em>271 (3-4)<\/li><li>Koschinsky, A., Bau, M., Marbler, H.,&nbsp;<strong>Schmidt, K.<\/strong>&nbsp;<strong>(2010)<\/strong>: Rare valuable metals in marine ferromanganese nod-ules \u2013 contents and accumulation processes.&nbsp;<em>Zeitschrift f\u00fcr Angewandte Geologie<\/em>&nbsp;51 (2).<\/li><li>Bau, M., Balan, S.,&nbsp;<strong>Schmidt<\/strong>,&nbsp;<strong>K<\/strong>., Koschinsky, A. <strong>(2010)<\/strong>: Rare earth elements in mussel shells of the Mytilidae family as tracers for hidden and fossil high-temperature hydrothermal systems,&nbsp;<em>Earth and Planetary Science Letters<\/em>&nbsp;299, 310-316.<\/li><li><strong>Schmidt, K<\/strong>., Garbe-Sch\u00f6nberg, D., Bau, M., Koschinsky, A. <strong>(2010)<\/strong>: Rare earth element distribution in &gt;400&nbsp;C hot hydrothermal fluids from 5\u00b0S, MAR: The role of anhydrite in controlling highly variable distribution patterns.&nbsp;<em>Geochimica et Cosmochimica Acta&nbsp;<\/em>74, 4058-4077.<\/li><li>Koschinsky, A., Garbe-Sch\u00f6nberg, D., Sander, S.,&nbsp;<strong>Schmidt, K.,<\/strong>&nbsp;Gennerich, H.-H., Strauss, H. <strong>(2008)<\/strong>: Hydrothermal venting at p-T conditions above the critical point of seawater, 5\u00b0S on the Mid-Atlantic Ridge.&nbsp;<em>Geology<\/em>&nbsp;36, 615-618.<\/li><li>Perner, M., Kuever, J.; Seifert, R., Pape, T., Koschinsky, A,&nbsp;<strong>Schmidt, K.<\/strong>&nbsp;Strauss, H., Imhoff, J.F. <strong>(2007)<\/strong>: The influence of ultramafic rocks on microbial communities at the Logatchev hydrothermal field, located 15\u00b0N on the Mid-Atlantic Ridge.&nbsp;<em>FEMS Microbiology Ecology<\/em>&nbsp;61 (1).<\/li><li><strong>Schmidt, K.,<\/strong>&nbsp;Koschinsky, A., Garbe-Sch\u00f6nberg, D., de Carvalho, L.M. Seifert, R. <strong>(2007)<\/strong>: Geochemistry of hydrothermal fluids from the Logatchev hydrothermal field, 15\u00b0N on the Mid-Atlantic Ridge: Temporal and spatial investigation.&nbsp;<em>Chemical Geology<\/em>&nbsp;242, 1-21.&nbsp;<\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>Dr. Katja Schmidt is a marine geochemist who has been a Ph.D. student and PostDoc at Jacobs University Bremen from 2004 to 2017. At present, she works at the German Federal Institute for Geosciences and Resources (BGR), where she is<\/p>","protected":false},"author":4,"featured_media":0,"parent":851,"menu_order":18,"comment_status":"closed","ping_status":"closed","template":"","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"footnotes":""},"class_list":["post-1812","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/pages\/1812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/comments?post=1812"}],"version-history":[{"count":14,"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/pages\/1812\/revisions"}],"predecessor-version":[{"id":1836,"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/pages\/1812\/revisions\/1836"}],"up":[{"embeddable":true,"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/pages\/851"}],"wp:attachment":[{"href":"https:\/\/andrea-koschinsky.org\/pt\/wp-json\/wp\/v2\/media?parent=1812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}