Dr. Thomas Frederichs
Research group Marine Geophysics
Technical Research Assistant


phone:+49 421 218 - 65326
fax:+49 421 218 - 65339
e-mail:frederichs@uni-bremen.de
contact:Fachbereich Geowissenschaften
der Universität Bremen
GEO Gebäude / Raumnr. 4040
Klagenfurter StraĂźe 2-4
28359 Bremen
address:Dr. Thomas Frederichs
Fachbereich Geowissenschaften
der Universität Bremen
Postfach 330 440
28334 Bremen
homepage
 
All publications
Ghosh K., Murshed M., Frederichs T., Muniraju N., Gesing T. (2022)
Structural, vibrational, thermal, and magnetic properties of mullite-type NdMnTiO5 ceramic
Journal of the American Ceramic Society, 105, 2702 - 2712
doi: 10.1111/jace.18261
Albers E., Bach W., Pérez-Gussinyé M., McCammon C., Frederichs T. (2021)
Serpentinization-Driven H2 Production From Continental Break-Up to Mid-Ocean Ridge Spreading: Unexpected High Rates at the West Iberia Margin
Frontiers in Earth Science, 99:673063.
doi: 10.3389/feart.2021.673063
Chiessi C., Mulitza S., Taniguchi N., Prange M., Campos M., Häggi C., Schefuß E., Pinho T., Frederichs T., Portilho-Ramos R., Sousa S., Crivellari S., Cruz F. (2021)
Mid- to Late Holocene Contraction of the Intertropical Convergence Zone Over Northeastern South America
Paleoceanography and Paleoclimatology, 36
doi: 10.1029/2020PA003936
Gohl K., Wellner J., Klaus A., Bohaty S., Courtillat M., Cowan E., De Lira Mota M., Esteves M., Fegyveresi J., Frederichs T., Gao L., Halberstadt A., Hillenbrand C., Horikawa K., Iwai M., Kim J., King T., Klages J., Passchier S., Penkrot M., Prebble J., Rahaman W., Reinardy B., Renaudie J., Robinson D., Scherer R., Siddoway C., Wu L., Yamane M. (2021)
Expedition 379 summary
In: Amundsen Sea West Antarctic Ice Sheet History, Edited by Gohl K., Wellner J., Klaus A., p., International Ocean Discovery Program, DOI.org (Crossref)
Gohl K., Wellner J., Klaus A., Bohaty S., Courtillat M., Cowan E., De Lira Mota M., Esteves M., Fegyveresi J., Frederichs T., Gao L., Halberstadt A., Hillenbrand C., Horikawa K., Iwai M., Kim J., King T., Klages J., Passchier S., Penkrot M., Prebble J., Rahaman W., Reinardy B., Renaudie J., Robinson D., Scherer R., Siddoway C., Wu L., Yamane M. (2021)
Expedition 379 methods
In: Amundsen Sea West Antarctic Ice Sheet History, Edited by Gohl K., Wellner J., Klaus A., p., International Ocean Discovery Program,
Gohl K., Uenzelmann-Neben G., Gille-Petzoldt J., Hillenbrand C., Klages J., Bohaty S., Passchier S., Frederichs T., Wellner J., Lamb R., Leitchenkov G., D. (2021)
Evidence for a highly dynamic West Antarctic Ice Sheet during the Pliocene
Geophysical Research Letters, 48
doi: 10.1029/2021GL093103
Smith J., Hillenbrand C., Subt C., Rosenheim B., Frederichs T., Ehrmann W., Andersen T., Wacker L., Makinson K., Anker P., Venables E., Nicholls K. (2021)
History of the Larsen C Ice Shelf reconstructed from sub–ice shelf and offshore sediments
Geology, 49, 978 - 982
10.1130/G48503.1
Wang W., von Dobeneck T., Frederichs T., Zhang Y., Lembke-Jene L., Tiedemann R., Winklhofer M., NĂĽrnberg D. (2021)
Dating North Pacific Abyssal Sediments by Geomagnetic Paleointensity: Implications of Magnetization Carriers, Plio-Pleistocene Climate Change, and Benthic Redox Conditions
Frontiers in Earth Science, 9:683177.
doi: 10.3389/feart.2021.683177
Wellner J., Gohl K., Klaus A., Bohaty S., Courtillat M., Cowan E., De Lira Mota M., Esteves M., Fegyveresi J., Frederichs T., Gao L., Halberstadt A., Hillenbrand C., Horikawa K., Iwai M., Kim J., King T., Klages J., Passchier S., Penkrot M., Prebble J., Rahaman W., Reinardy B., Renaudie J., Robinson D., Scherer R., Siddoway C., Wu L., Yamane M. (2021)
Site U1532
In: Amundsen Sea West Antarctic Ice Sheet History, Edited by Gohl K., Wellner J., Klaus A., p., International Ocean Discovery Program, DOI.org (Crossref)
Wellner J., Gohl K., Klaus A., Bohaty S., Courtillat M., Cowan E., De Lira Mota M., Esteves M., Fegyveresi J., Frederichs T., Gao L., Halberstadt A., Hillenbrand C., Horikawa K., Iwai M., Kim J., King T., Klages J., Passchier S., Penkrot M., Prebble J., Rahaman W., Reinardy B., Renaudie J., Robinson D., Scherer R., Siddoway C., Wu L., Yamane M. (2021)
Site U1533
In: Amundsen Sea West Antarctic Ice Sheet History, Edited by Gohl K., Wellner J., Klaus A., p., International Ocean Discovery Program, DOI.org (Crossref)
Chen P., Murshed M., Fischer M., Frederichs T., Gesing T. (2020)
KLi2RE(BO3)2 (RE = Dy, Ho, Er, Tm, Yb, and Y): Structural, Spectroscopic, And Thermogravimetric Studies on a Series of Mixed-Alkali Rare-Earth Orthoborates
Inorg. Chem.
doi: 10.1021/acs.inorgchem.0c02684
Klages J., Salzmann U., Bickert T., Hillenbrand C., Gohl K., Kuhn G., Bohaty S., Titschack J., MĂĽller J., Frederichs T., e. (2020)
Temperate rainforests near the South Pole during peak Cretaceous warmth
Nature, 580, 81 - 86
doi: 10.1038/s41586-020-2148-5
Simões Pereira P., van de Flierdt T., Hemming S., Frederichs T., Hammond S., Brachfeld S., Doherty C., Kuhn G., Smith J., Klages J., Hillenbrand C. (2020)
The geochemical and mineralogical fingerprint of West Antarctica´s weak underbelly: Pine Island and Thwaites glaciers
Chemical Geology, 550, 119649
doi: 10.1016/j.chemgeo.2020.119649
Westerhold T., Marwan N., Drury A., Liebrand D., Agnini C., Anagnostou E., Barnet J., Bohaty S., De Vleeschouwer D., Florindo F., Frederichs T., Hodell D., Holbourn A., Kroon D., Lauretano V., Littler K., Lourens L., Lyle M., Pälike H., Röhl U., Tian J., Wilkens R., Wilson P., Zachos J. (2020)
An astronomically dated record of Earth`s climate and its predictability over the last 66 million years
Science, 369, 1383
doi: 10.1126/science.aba6853
Aguirre-Urreta B., Martinez M., Schmitz M., Lescano M., Omarini J., Tunik M., Kuhnert H., Concheyro A., Rawson P., Ramos V., Reboulet S., Noclin N., Frederichs T., Nickl A., Pälike H. (2019)
Interhemispheric radio-astrochronological calibration of the time scales from the Andean and the Tethyan areas in the Valanginian–Hauterivian (Early Cretaceous)
Gondwana Research, 70, 104 - 132
doi: 10.1016/j.gr.2019.01.006
Williams T., Hillenbrand C., Piotrowski A., Allen C., Frederichs T., Smith J., Ehrmann W., Hodell D. (2019)
Palaeocirculation and ventilation history of Southern Ocean sourced deep water masses during the last 800,000 years
Paleoceanography and Paleoclimatology, 34, 833 - 852
doi: 10.1029/2018PA003472
Frank U., Nowaczyk N., Frederichs T., Liu J., Korte M. (2018)
Palaeo- and rock magnetic investigations of Late Quaternary sediments from the Upper Congo deep-sea fan: on the difficulty in obtaining palaeomagnetic secular variation records from low latitudes
International Journal of Earth Sciences, 108, 267 - 285
doi: 10.1007/s00531-018-1653-3
Westerhold T., Röhl U., Donner B., Frederichs T., Kordesch W., Bohaty S., Hodell D., Laskar J., Zeebe R. (2018)
Late Lutetian Thermal Maximum-Crossing a Thermal Threshold in Earth´s Climate System?
Geochemistry, Geophysics, Geosystems, 19, 73 - 82
doi: 10.1002/2017GC007240
Drury A., Westerhold T., Frederichs T., Tian J., Wilkens R., Channell J., Evans H., John C., Lyle M., Röhl U. (2017)
Late Miocene climate and time scale reconciliation: Accurate orbital calibration from a deep-sea perspective
Earth and Planetary Science Letters, 475, 254 - 266
doi: 10.1016/j.epsl.2017.07.038
Frank U., Nowaczyk N., Frederichs T., Korte M. (2017)
Paleo- and rock magnetic investigations on Late Quaternary sediments from low latitudes I: Geomagnetic paleosecular variation and relative paleointensity records from the Tobago Basin, Southeast Caribbean
Geophysical Journal International, 208, 1740 - 1775
doi: 10.1093/gji/ggw481
Gohl K., Freudenthal T., Hillenbrand C., Klages J., Larter R., Bickert T., Bohaty S., Ehrmann W., Esper O., Frederichs T., Gebhardt C., Küssner K., Kuhn G., Pälike H., Ronge T., Simões Pereira P., Smith J., Uenzelmann-Neben G., van de Flierdt C., e. (2017)
MeBo70 Seabed Drilling on a Polar Continental Shelf: Operational Report and Lessons From Drilling in the Amundsen Sea Embayment of West Antarctica
Geochemistry, Geophysics, Geosystems, 18, 4235 - 4250
doi: 10.1002/2017GC007081
Klages J., Kuhn G., Hillenbrand C., Smith J., Graham A., Nitsche F., Frederichs T., Jernas P., Gohl K., Wacker L. (2017)
Limited grounding-line advance onto the West Antarctic continental shelf in the easternmost Amundsen Sea Embayment during the last glacial period
Public Library of Science, 12
doi:10.1371/journal.pone.0181593
Kuhn G., Hillenbrand C., Kasten S., Smith J., Nitsche F., Frederichs T., Wiers S., Ehrmann W., Klages J., MogollĂłn J. (2017)
Evidence for a palaeo-subglacial lake on the Antarctic continental shelf
Nature Communications, 8, 15591
doi: 10.1038/ncomms15591
Scheidt S., Egli R., Frederichs T., Hambach U., Rolf C. (2017)
A mineral magnetic characterization of the Plio-Pleistocene fluvial infill of the Heidelberg Basin (Germany)
Geophysical Journal International, 210, 743 - 764
doi: 10.1093/gji/ggx154
Westerhold T., Röhl U., Frederichs T., Agnini C., Raffi I., Zachos J., Wilkens R. (2017)
Astronomical Calibration of the Ypresian Time Scale: Implications for Seafloor Spreading Rates and the Chaotic Behaviour of the Solar System?
Clim. Past Discuss., 13, 1129 - 1152
doi: 10.5194/cp-13-1129-2017
Korff L., von Dobeneck T., Frederichs T., Kasten S., Kuhn G., Gersonde R., Diekmann B. (2016)
Cyclic magnetite dissolution in Pleistocene sediments of the abyssal Northwest Pacific Ocean: evidence for glacial oxygen depletion and carbon trapping
Paleoceanography, 31, 600 - 624
doi: 10.1002/2015PA002882
Mullender T., Frederichs T., Hilgenfeldt C., de Groot L., Fabian K., Dekkers M. (2016)
Automated paleomagnetic and rock magnetic data acquisition with an in-line horizontal “2G” system
Geochemistry, Geophysics, Geosystems, 17, 3546 - 3559
doi: 10.1002/2016GC006436
Xiao W., Frederichs T., Gersonde R., Kuhn G., Esper O., Zhang X. (2016)
Constraining the dating of late Quaternary marine sediment records from the Scotia Sea (Southern Ocean)
Quaternary Geochronology, 31, 97 - 118
doi: 10.1016/j.quageo.2015.11.003
Westerhold T., Röhl U., Frederichs T., Bohaty S., Zachos J. (2015)
Astronomical calibration of the geological timescale: closing the middle Eocene gap
Climate of the Past, 11, 1181 - 1195
doi: 10.5194/cp-11-1181-2015
Rothe M., Frederichs T., Eder M., Kleeberg A., Hupfer M. (2014)
Evidence for vivianite formation and its contribution to long-term phosphorus retention in a recent lake sediment: a novel analytical approach
Biogeosciences, 11, 5169 - 5180
doi: 10.5194/bg-11-5169-2014
Smith J., Hillenbrand C., Kuhn G., Klages J., Graham A., Larter R., Ehrmann W., Moreton S., Wiers S., Frederichs T. (2014)
New constraints on the timing of West Antarctic Ice Sheet retreat in the eastern Amundsen Sea since the Last Glacial Maximum
Global and Planetary Change, 122, 224 - 237
doi: 10.1016/j.gloplacha.2014.07.015
Ludwig P., Egli R., Bishop S., Chernenko V., Frederichs T., Rugel G., Merchel S., Orgeira M. (2013)
Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
Global and Planetary Change, 110, Part C, 321 - 339
doi: 10.1016/j.gloplacha.2013.08.018
Badesab F., von Dobeneck T., Bryan K., MĂĽller H., Briggs R., Frederichs T., Kwoll E. (2012)
Formation of magnetite-enriched zones in and offshore of a mesotidal estuarine lagoon: An environmental magnetic study of Tauranga Harbour and Bay of Plenty, New Zealand
Geochemistry Geophysics Geosystems, 13
doi: 10.1029/2012GC004125
Just J., Heslop D., von Dobeneck T., Bickert T., Dekkers M., Frederichs T., Meyer I., Zabel M. (2012)
Multiproxy characterization and budgeting of terrigenous end-members at the NW African continental margin
Geochemistry Geophysics Geosystems, 13
doi: 10.1029/2012GC004148
Itambi A., von Dobeneck T., Dekkers M., Frederichs T. (2010)
Magnetic mineral inventory of equatorial Atlantic Ocean marine sediments off Senegal—glacial and interglacial contrast
Geophysical Journal International, 183, 163 - 177
doi: 10.1111/j.1365-246X.2010.04736.x
Mohamed K., Rey D., Rubio B., Vilas F., Frederichs T. (2010)
Interplay between detrital and diagenetic processes since the last glacial maximum on the northwest Iberian continental shelf
Quaternary Research, 73, 507 - 520
doi: 10.1016/j.yqres.2010.02.003
Hepp D., Mörz T., Hensen C., Frederichs T., Kasten S., Riedinger N., Hay W. (2009)
A late Miocene-early Pliocene Antarctic deepwater record of repeated iron reduction events
Marine Geology, 266, 198 - 211
doi: 10.1016/j.margeo.2009.08.006
Hillenbrand C., Kuhn G., Frederichs T. (2009)
Record of a Mid-Pleistocene depositional anomaly in West Antarctic continental margin sediments: an indicator for ice-sheet collapse?
Quaternary Science Reviews, 28, 1147 - 1159
doi: 10.1016/j.quascirev.2008.12.010
Lekens W., Haflidason H., Sejrup H., Nygard A., Richter T., Vogt C., Frederichs T. (2009)
Sedimentation history of the northern North Sea Margin during the last 150 ka
Quaternary Science Reviews, 28, 469 - 483
doi: 10.1016/j.quascirev.2008.11.010
Rey D., Müller H., Rubio B., von Dobeneck T., Vilas F., Hilgenfeldt C., Bernabeu A., Frederichs T., Fernández S., Mohamed K. (2008)
Using electromagnetic sensors to estimate physical properties and environmental quality of surface sediments in the marine environment. Preliminary results.
Geotema, 10 , 652 - 654
Franke C., Frederichs T., Dekkers M. (2007)
Efficiency of heavy liquid separation to concentrate magnetic particles
Geophysical Journal International, 170, 1053 - 1066
doi: 10.1111/j.1365-246X.2007.03489.x
Horák D., Petrovský E., Kapicka A., Frederichs T. (2007)
Synthesis and characterization of magnetic poly(glycidyl methacrylate) microspheres
Journal of Magnetism and Magnetic Materials, 311, 500 - 506
doi: 10.1016/j.jmmm.2006.08.006
Knies J., Matthiessen J., Mackensen A., Stein R., Vogt C., Frederichs T., Nam S. (2007)
Effects of Arctic freshwater forcing on thermohaline circulation during the Pleistocene
Geology, 35, 1075 - 1078
doi: 10.1130/G23966A.1
Kosterov A., Frederichs T., von Dobeneck T. (2006)
Low-temperature magnetic properties of rhodochrosite (MnCO3)
Physics of the Earth and Planetary Interiors, 154, 234 - 242
doi: 10.1016/j.pepi.2005.09.011
Millo C., Sarnthein M., Erlenkeuser H., Frederichs T. (2005)
Methane-driven late Pleistocene 13C minima and overflow reversals in the southwestern Greenland Sea
Geology, 33, 873 - 876
doi: 10.1130/G21790.1
Pan Y., Petersen N., Winklhofer M., Davila A., Liu Q., Frederichs T., Hanzlik M., Zhu R. (2005)
Rock magnetic properties of uncultured magnetotactic bacteria
Earth and Planetary Science Letters, 237, 311 - 325
doi: 10.1016/j.epsl.2005.06.029
Frederichs T., von Dobeneck T., Bleil U., Dekkers M. (2003)
Towards the identification of siderite, rhodochrosite, and vivianite in sediments by their low-temperature magnetic properties
Physics and Chemistry of the Earth, Parts A/B/C, 28, 669 - 679
doi: 10.1016/S1474-7065(03)00121-9
Hillenbrand C., FĂĽtterer D., Grobe H., Frederichs T. (2002-07-01)
No evidence for a Pleistocene collapse of the West Antarctic Ice Sheet from continental margin sediments recovered in the Amundsen Sea
Geo-Marine Letters, 22, 51 - 59
doi: 10.1007/s00367-002-0097-7
Nowaczyk N., Frederichs T., Kassens H., Nørgaard-Pedersen N., Spielhagen R., Stein R., Weiel D. (2001)
Sedimentation Rates in the Makarov Basin, Central Arctic Ocean: A Paleomagnetic and Rock Magnetic Approach
Paleoceanography, 16, 368 - 389
doi: 10.1029/2000PA000521
Frederichs T., Bleil U., Däumler K., von Dobeneck T., Schmidt A. (1999)
The Magnetic View on the Marine Paleoenvironment: Parameters, Techniques and Potentials of Rock Magnetic Studies as a Key to Paleoclimatic and Paleoceanographic Changes
In: Use of Proxies in Paleoceanography, Edited by Fischer G., Wefer G., Springer Berlin Heidelberg, 575-599
doi: 10.1007/978-3-642-58646-0_24
Nowaczyk N., Frederichs T. (1999-05-04)
Geomagnetic events and relative palaeointensity variations during the past 300 ka as recorded in Kolbeinsey Ridge sediments, Iceland Sea: indication for a strongly variable geomagnetic field
International Journal of Earth Sciences, 88, 116 - 131
doi: 10.1007/s005310050250
Spielhagen R., Bonani G., Eisenhauer A., Frank M., Frederichs T., Kassens H., Kubik P., Mangini A., Nøgaard Pedersen N., Nowaczyk N., Schäper S., Stein R., Thiede J., Tiedemann R., Wahsner M. (1997)
Arctic Ocean evidence for late Quaternary initiation of northern Eurasian ice sheets
Geology, 25, 783 - 786
doi: 10.1130/0091-7613(1997)025<0783:AOEFLQ>2.3.CO;2
von Dobeneck T., Frederichs T., Fabian K., Bleil U. (1996)
Rock Magnetic Micro-Scanning mit. HTSL-SQUID-Gradiometer. In Supraleitung und Tieftemperaturtechnik 1996, VDI-Technologiezentrum (ed)
VDI-Verlag DĂĽsseldorf, 51 - 54

Nowaczyk N., Frederichs T., Eisenhauer A., Gard G. (1994)
Magnetostratigraphic Data From Late Quaternary Sediments From the Yermak Plateau, Arctic Ocean: Evidence For Four Geomagnetic Polarity Events Within the Last 170 Ka of the Brunhes Chron
Geophysical Journal International, 117, 453 - 471
doi: 10.1111/j.1365-246X.1994.tb03944.x
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Research group Marine Geophysics
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