Dr Christian Schroeder

Senior Lecturer

Biological and Environmental Sciences University of Stirling, Stirling, FK9 4LA

Dr Christian Schroeder

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About me

About me

Fully funded PhD projects available. Please contact me for further details:
1) Preservation of Organic Carbon Compounds and Potential Biosignatures by Reactive Iron Minerals on Mars (guaranteed funding from UK Space Agency).
2) Carbon sequestration processes in the rusty carbon sink (competition-funded through UKRI NERC DTP Iapetus).

I am co-supervising these projects at other institutions:
3) Mineral-microbe transformations in carbon critical environments (based at University of Glasgow).
4) Do organic-mineral interactions increase or decrease greenhouse gas release from rivers? (based at University of Durham).

With my research and teaching, I span the disciplines of Environmental Science and Planetary Exploration. My overarching research interest is in the (bio)geochemical iron cycle and its interactions with other nutrient element cycles such as carbon and sulphur.

Reactive iron mineral phases play an essential role in the sequestration of carbon in soils and sediments, they influence the lateral transport of carbon from land to the ocean, and they determine bioavailability of both iron and carbon in the open ocean where iron is often the limiting nutrient for phytoplankton growth. Understanding these controls of the carbon cycle is essential in our fight to mitigate global climate change on Earth.

The search for life on Mars relies on the preservation of organic compounds over geological timescales. Reactive iron mineral phases can aid that preservation through the same processes involved in the sequestration of carbon in sediments. I worked with NASA's Mars Exploration Rovers Spirit and Opportunity and am currently involved in the ESA Rosalind Franklin Mars rover mission, which is due to launch in 2028.

One of the methods I use to investigate iron minerals involved in these processes is Mössbauer spectroscopy. At the beginning of my career, I got involved with the development of a miniaturized Mössbauer spectrometer for the NASA Mars Exploration Rover mission. I now run a Mössbauer spectroscopy laboratory in Stirling that offers conventional Mössbauer spectroscopy for iron mineralogy, speciation, and oxidation states (coupled to a cryostat enabling low temperature analyses to below 4.2 K - the temperature of liquid helium); (field-)portable Mössbauer spectroscopy for non-destructive and in situ analyses; and synchrotron-based Mössbauer applications for microscopic sample volumes.

Research Group: Earth and Planetary Observation Research Group

Advisory roles:
2023- Mars Sample Return Sample Receiving Project Measurement Definition Team
2021- UK Space Agency Robotic Exploration Oversight Committee
2019- Scottish Blue Carbon Forum member and project PI
2019- European Space Agency/Roscosmos ExoMars Rover Science Operations Working Group
2018- Africa Initiative for Planetary and Space Science Scientific Advisory Committee
2017- Scottish Alliance for Geoscience, Environment and Society (SAGES) Executive Committee
2016- Scottish Planetary Science Research Network (SPERO) Executive Board
2015- Frontiers in Earth Science-Geochemistry Editorial Board
2015-2017 UK Space Agency Space Exploration Advisory Committee
2015-2016 UK Space Agency Sample Return Working Group
2015 UK Space Agency Space Exploration Education Review Panel
2012-2013 International Journal of Astrobiology Editorial Board
2003-2019 NASA Mars Exploration Rover Athena Science Team Collaborator

Research (9)

Biogeochemistry Environmental Science Planetary Exploration Meteorites

Projects

ESA ExoMars Rover Guest Investigator Application: The role of Fe-C interactions in global processes on Earth and Mars
PI: Dr Christian Schroeder
Funded by: UK Space Agency

Exomars Raman Laser Spectrometer - Instrument health & hibernation
PI: Dr Christian Schroeder
Funded by: UK Space Agency

Amplifying our students' voice: the co-production of undergraduate field courses (residential and non-residential) to address EDI
PI: Dr Martina Quaggiotto
Funded by: Natural Environment Research Council

Developing a robust observational framework for chondrite identification on Mars
PI: Dr Christian Schroeder
Funded by: Commonwealth Scholarship Commission in the UK

Geochemical investigation of Mars with Mars Exploration Rover Opportunity
PI: Dr Christian Schroeder
Funded by: Science & Technology Facilities Council

The sedimentary iron cycle: A novel way to iron mineral characterization and separation
PI: Dr Christian Schroeder
Funded by: The Carnegie Trust

Continued geochemical investigation of Noachian crust at Endeavour Crater with Mars Exploration Rover Opportunity
PI: Dr Christian Schroeder
Funded by: Science & Technology Facilities Council

A miniaturized Mössbauer spectrometer developed for Mars exploration applied to geological repositories for non-destructive and in situ analyses
PI: Dr Christian Schroeder
Funded by: Science & Technology Facilities Council

SAGES Scheme 2 ECR exchanges with Europe, North America, China and India
PI: Dr Christian Schroeder
Funded by: Scottish Alliance for Geoscience, Environment and Society

Outputs (123)

Outputs

Showing 100 of 123 — See all 123 outputs

Article

Fawdon P, Orgel C, Adeli S, Balme M, Calef FJ, Davis JM, Frigeri A, Grindrod P, Hauber E, Le Deit L, Loizeau D, Nass A, Quantin-Nataf C, Sefton-Nash E & Schröder C (2024) The high-resolution map of Oxia Planum, Mars; the landing site of the ExoMars Rosalind Franklin rover mission. Journal of Maps, 20 (1), Art. No.: 2302361. https://doi.org/10.1080/17445647.2024.2302361


Policy Document

Kellock C, Leakey C, Schroeder C, Melville N, Khan J & Mathieson S (2023) Source to Sea - enabling coherent, efficient and synergistic outcomes [NatureScot Research Report 1343]. NatureScot. NatureScot Research Report, 1343. Inverness. https://www.nature.scot/doc/naturescot-research-report-1343-source-sea-enabling-coherent-efficient-and-synergistic-outcomes


Article

Zhao B, Yao P, Bianchi TS, Wang X, Shields MR, Schroeder C & Yu Z (2023) Preferential preservation of pre-aged terrestrial organic carbon by reactive iron in estuarine particles and coastal sediments of a large river-dominated estuary. Geochimica et Cosmochimica Acta, 345, pp. 34-49. https://doi.org/10.1016/j.gca.2023.01.023


Article

Mittlefehldt DW, Gellert R, VanBommel S, Arvidson RE, Ashley JW, Clark BC, Crumpler LS, Farrand WH, Golombek MP, Grant JA, Morris RV & Schroeder C (2021) Geology and Geochemistry of Noachian Bedrock and Alteration Events, Meridiani Planum, Mars: MER Opportunity Observations. Journal of Geophysical Research: Planets, 126 (9), Art. No.: e2021JE006915. https://doi.org/10.1029/2021JE006915


Book Chapter

Morris RV, Schröder C, Klingelhöfer G & Agresti DG (2019) Mössbauer Spectroscopy at Gusev Crater and Meridiani Planum: Iron Mineralogy, Oxidation State, and Alteration on Mars. In: Bishop JL, Bell JF & Moersch JE (eds.) Remote Compositional Analysis: Techniques for Understanding Spectroscopy, Mineralogy, and Geochemistry of Planetary Surfaces. Cambridge Planetary Science, 24. Cambridge: Cambridge University Press, pp. 538-554. https://www.cambridge.org/gb/academic/subjects/earth-and-environmental-science/planetary-science-and-astrobiology/remote-compositional-analysis-techniques-understanding-spectroscopy-mineralogy-and-geochemistry-planetary-surfaces?format=HB; https://doi.org/10.1017/9781316888872.029


Article

Mittlefehldt D, Gellert R, VanBommel S, Ming D, Yen A, Clark BC, Morris R, Schröder C, Crumpler LS, Grant JA, Jolliff BL, Arvidson RE, Farrand WH, Herkenhoff KE, Bell J, Cohen B, Klingelhöfer G, Schrader C & Rice J (2018) Diverse Lithologies and Alteration Events on the Rim of Noachian-Aged Endeavour Crater, Meridiani Planum, Mars: In-Situ Compositional Evidence. Journal of Geophysical Research: Planets, 123 (5), pp. 1255-1306. https://doi.org/10.1002/2017JE005474


Meeting Abstract

Peiffer S, McCammon C, Wan M & Schroeder C (2018) Metastable sulphur species at iron mineral surfaces. 255th National Meeting and Exposition of the American-Chemical-Society (ACS) - Nexus of Food, Energy, and Water, New Orleans LA, 18 Mar 2018-22 Mar 2018. Abstracts of Papers of the American Chemical Society, 255, Art. No.: 223.


Article

Markovsky C, Byrne JM, Lalla E, Lozano-Gorrin AD, Klingelhoefer G, Rull F, Kappler A, Hoffmann T & Schröder C (2017) Abiotic versus biotic iron mineral transformation studied by a miniaturized backscattering Mössbauer spectrometer (MIMOS II), X-ray diffraction and Raman spectroscopy. Icarus, 296, pp. 49-58. https://doi.org/10.1016/j.icarus.2017.05.017


Article

Schröder C (2015) Mössbauer spectroscopy in astrobiology. Spectroscopy Europe, 27 (2), pp. 10-13. http://www.spectroscopyeurope.com/articles/55-articles/3467-moessbauer-spectroscopy-in-astrobiology


Article

Nitzsche KS, Lan VM, Trang PTK, Viet PH, Berg M, Voegelin A, Planer-Friedrich B, Zahoransky J, Mueller S, Byrne JM, Schröder C, Behrens S & Kappler A (2015) Arsenic removal from drinking water by a household sand filter in Vietnam - Effect of filter usage practices on arsenic removal efficiency and microbiological water quality. Science of the Total Environment, 502, pp. 526-536. https://doi.org/10.1016/j.scitotenv.2014.09.055


Book Chapter

Gutlich P & Schröder C (2012) Mössbauer Spectroscopy. In: Schäfer R & Schmidt P (eds.) Methods in Physical Chemistry. Weinheim, Germany: Wiley-VCH, pp. 351-389. http://onlinelibrary.wiley.com/doi/10.1002/9783527636839.ch11/summary


Article

Emmerich M, Bhansali A, Losekann-Behrens T, Schröder C, Kappler A & Behrens S (2012) Abundance, Distribution, and Activity of Fe(II)-Oxidizing and Fe(III)-Reducing Microorganisms in Hypersaline Sediments of Lake Kasin, Southern Russia. Applied and Environmental Microbiology, 78 (12), pp. 4386-4399. https://doi.org/10.1128/AEM.07637-11


Article

Ashley JW, Golombek M, Christensen PR, Squyres SW, McCoy TJ, Schröder C, Fleischer I, Johnson JR, Herkenhoff KE & Parker TJ (2011) Evidence for mechanical and chemical alteration of iron‐nickel meteorites on Mars: Process insights for Meridiani Planum. Journal of Geophysical Research: Planets, 116 (E7), Art. No.: E00F20. https://doi.org/10.1029/2010JE003672


Article

Crumpler LS, Arvidson RE, Squyres SW, McCoy TJ, Yingst RA, Ruff SW, Farrand WH, McSween HY, Powell MW, Ming DW, Morris RV, Bell III JF, Grant JA, Greeley R & Schröder C (2011) Field reconnaissance geologic mapping of the Columbia Hills, Mars, based on Mars Exploration Rover Spirit and MRO HiRISE observations. Journal of Geophysical Research: Planets, 116 (E7), Art. No.: E00F24. https://doi.org/10.1029/2010JE003749


Article

Arvidson RE, Ashley JW, Bell III JF, Chojnacki M, Cohen J, Economou TET, Farrand WH, Fergason RL, Fleischer I, Geissler P, Gellert R, Golombek M, Grotzinger JP, Guinness EA & Schröder C (2011) Opportunity Mars Rover mission: Overview and selected results from Purgatory ripple to traverses to Endeavour crater. Journal of Geophysical Research: Planets, 116 (E7), Art. No.: E00F15. https://doi.org/10.1029/2010JE003746


Article

Schröder C, Herkenhoff KE, Farrand WH, Chappelow JH, Wang W, Nittler LR, Ashley JW, Fleischer I, Gellert R, Golombek M, Johnson JR, Klingelhoefer G, Li R, Morris RV & Squyres SW (2010) Properties and distribution of paired candidate stony meteorites at Meridiani Planum, Mars. Journal of Geophysical Research: Planets, 115 (E7), Art. No.: E00F09. https://doi.org/10.1029/2010JE003616


Article

Weitz C, Farrand WH, Johnson JR, Fleischer I, Schröder C, Yingst RA, Jolliff BL, Gellert R, Bell III JF, Herkenhoff KE, Klingelhoefer G, Cohen BA, Calvin WM, Rutherford M & Ashley JW (2010) Visible and near-infrared multispectral analysis of geochemically measured rock fragments at the Opportunity landing site in Meridiani Planum. Journal of Geophysical Research: Planets, 115 (E7), Art. No.: E00F10. https://doi.org/10.1029/2010JE003660


Article

Fleischer I, Brueckner J, Schröder C, Farrand WH, Treguier E, Morris RV, Klingelhoefer G, Herkenhoff KE, Mittlefehldt DW, Ashley JW, Golombek M, Johnson JR, Jolliff BL, Squyres SW, Weitz C, Gellert R, de Souza Jr PA & Cohen BA (2010) Mineralogy and chemistry of cobbles at Meridiani Planum, Mars, investigated by the Mars Exploration Rover Opportunity. Journal of Geophysical Research: Planets, 115 (E7), Art. No.: E00F05. https://doi.org/10.1029/2010JE003621


Other

Gutlich P & Schröder C (2010) Mössbauer Spectroscopy. Bunsen-Magazin, 12 (1), pp. 4-22. http://www.bunsen.de/bunsen_media/Downloads/BUNSEN_MAGAZIN/Erschienene+BM/BuMa_2010_01.pdf


Article

Squyres SW, Knoll AH, Arvidson RE, Ashley JW, Bell III JF, Calvin WM, Christensen PR, Clark BC, Cohen BA, de Souza Jr PA, Edgar LA, Farrand WH, Fleischer I, Gellert R & Schröder C (2009) Exploration of Victoria Crater by the Mars Rover Opportunity. Science, 324 (5930), pp. 1058-1061. https://doi.org/10.1126/science.1170355


Article

Schmidt ME, Farrand WH, Johnson JR, Schröder C, Hurowitz JA, McCoy TJ, Ruff SW, Arvidson RE, DesMarais DJ, Lewis KW, Ming DW, Squyres SW & de Souza Jr PA (2009) Spectral, mineralogical, and geochemical variations across Home Plate, Gusev Crater, Mars indicate high and low temperature alteration. Earth and Planetary Science Letters, 281 (3-4), pp. 258-266. https://doi.org/10.1016/j.epsl.2009.02.030


Article

Arvidson RE, Ruff SW, Morris RV, Ming DW, Crumpler LS, Yen AS, Squyres SW, Sullivan RJ, Bell III JF, Cabrol NA, Clark BC, Farrand WH, Gellert R, Greenberger R & Schröder C (2008) Spirit Mars Rover Mission to the Columbia Hills, Gusev Crater: Mission overview and selected results from the Cumberland Ridge to Home Plate. Journal of Geophysical Research: Planets, 113 (E12), Art. No.: E12S33. https://doi.org/10.1029/2008JE003183


Article

Morris RV, Klingelhoefer G, Schröder C, Fleischer I, Ming DW, Yen AS, Gellert R, Arvidson RE, Rodionov DS, Crumpler LS, Clark BC, Cohen BA, McCoy TJ, Mittlefehldt DW, Schmidt ME, de Souza Jr PA & Squyres SW (2008) Iron mineralogy and aqueous alteration from Husband Hill through Home Plate at Gusev Crater, Mars: Results from the Mössbauer instrument on the Spirit Mars Exploration Rover. Journal of Geophysical Research: Planets, 113 (E12), Art. No.: E12S42. https://doi.org/10.1029/2008JE003201


Article

Ming DW, Gellert R, Morris RV, Arvidson RE, Brueckner J, Clark BC, Cohen BA, d'Uston C, Economou TET, Fleischer I, Klingelhoefer G, McCoy TJ, Mittlefehldt DW, Schmidt ME, Schröder C, Squyres SW, Treguier E, Yen AS & Zipfel J (2008) Geochemical properties of rocks and soils in Gusev Crater, Mars: Results of the Alpha Particle X-Ray Spectrometer from Cumberland Ridge to Home Plate. Journal of Geophysical Research: Planets, 113 (E12), Art. No.: E12S39. https://doi.org/10.1029/2008JE003195


Article

Schröder C, Rodionov DS, McCoy TJ, Jolliff BL, Gellert R, Nittler LR, Farrand WH, Johnson JR, Ruff SW, Ashley JW, Mittlefehldt DW, Herkenhoff KE, Fleischer I, Haldemann AFC & Klingelhoefer G (2008) Meteorites on Mars observed with the Mars Exploration Rovers. Journal of Geophysical Research: Planets, 113 (E6), Art. No.: E06S22. https://doi.org/10.1029/2007JE002990


Article

McSween HY, Ruff SW, Morris RV, Gellert R, Klingelhoefer G, Christensen PR, McCoy TJ, Ghosh A, Moersch JM, Cohen BA, Rogers AD, Schröder C, Squyres SW, Crisp JA & Yen AS (2008) Mineralogy of volcanic rocks in Gusev Crater, Mars: Reconciling Mössbauer, Alpha Particle X-ray Spectrometer, and Miniature Thermal Emission Spectrometer spectra. Journal of Geophysical Research: Planets, 113 (E6), Art. No.: E06S04. https://doi.org/10.1029/2007JE002970


Article

Fleischer I, Klingelhoefer G, Schröder C, Morris RV, Hahn M, Rodionov DS, Gellert R & de Souza Jr PA (2008) Depth selective Mossbauer spectroscopy: Analysis and simulation of 6.4 keV and 14.4 keV spectra obtained from rocks at Gusev Crater, Mars, and layered laboratory samples. Journal of Geophysical Research: Planets, 113 (E6), Art. No.: E06S21. https://doi.org/10.1029/2007JE003022


Article

Pullan D, Westall F, Hofmann B, Parnell J, Cockell CS, Edwards HGM, Villar SEJ, Schröder C, Cressey G, Marinangeli L, Richter L & Klingelhoefer G (2008) Identification of morphological biosignatures in martian analogue field specimens using in situ planetary instrumentation. Astrobiology, 8 (1), pp. 119-156. https://doi.org/10.1089/ast.2006.0037


Meeting Abstract

Klingelhöfer G, Morris R, Rodionov DS, Schröder C, Fleischer I, Yen AS & Ming DW (2007) Jarosite and goethite identified by Mossbauer spectroscopy on the surface of Mars: Mineralogical evidence for aqueous processes. 17th Annual V.M. Goldschmidt Conference Cologne, Germany August 2007, Cologne, 19/08/2007 - 24/08/3007. Geochimica et Cosmochimica Acta, 71 (S15), pp. A494-A494. https://doi.org/10.1016/j.gca.2007.06.019


Article

Clark BC, Arvidson RE, Gellert R, Morris RV, Ming DW, Richter L, Ruff SW, Michalski JR, Farrand WH, Yen AS, Herkenhoff KE, Li R, Squyres SW, Schröder C, Klingelhoefer G & Bell III JF (2007) Evidence for montmorillonite or its compositional equivalent in Columbia Hills, Mars. Journal of Geophysical Research: Planets, 112 (E6), Art. No.: E06S01. https://doi.org/10.1029/2006JE002756


Article

Squyres SW, Aharonson O, Clark BC, Cohen BA, Crumpler LS, de Souza Jr PA, Farrand WH, Gellert R, Grant JA, Grotzinger JP, Haldemann AFC, Johnson JR, Klingelhoefer G, Lewis KW & Schröder C (2007) Pyroclastic activity at home plate in Gusev Crater, Mars. Science, 316 (5825), pp. 738-742. https://doi.org/10.1126/science.1139045


Article

Morris RV, Klingelhoefer G, Schröder C, Rodionov DS, Yen AS, Ming DW, de Souza Jr PA, Wdowiak TJ, Fleischer I, Gellert R, Bernhardt B, Bonnes U, Cohen BA, Evlanov EN & Foh J (2006) Mossbauer mineralogy of rock, soil, and dust at Meridiani Planum, Mars: Opportunity's journey across sulfate-rich outcrop, basaltic sand and dust, and hematite lag deposits. Journal of Geophysical Research: Planets, 111 (E12), Art. No.: E12S15. https://doi.org/10.1029/2006JE002791


Article

Yen AS, Mittlefehldt DW, McLennan SM, Gellert R, Bell III JF, McSween HY, Ming DW, McCoy TJ, Morris RV, Golombek M, Economou TET, Madsen MB, Wdowiak TJ, Clark BC, Jolliff BL, Schröder C, Brueckner J, Zipfel J & Squyres SW (2006) Nickel on Mars: Constraints on meteoritic material at the surface. Journal of Geophysical Research: Planets, 111 (E12), Art. No.: E12S11. https://doi.org/10.1029/2006JE002797


Article

Squyres SW, Arvidson RE, Bollen DM, Bell III JF, Brueckner J, Cabrol NA, Calvin WM, Carr MH, Christensen PR, Clark BC, Crumpler LS, DesMarais DJ, d'Uston C, Economou TET & Schröder C (2006) Overview of the Opportunity Mars Exploration Rover mission to Meridiani Planum: Eagle crater to Purgatory ripple. Journal of Geophysical Research: Planets, 111 (E12), Art. No.: E12S12. https://doi.org/10.1029/2006JE002771


See all 123 outputs

Teaching

Teaching

Director of Learning & Teaching, Division of Biological and Environmental Sciences

Programme Director: Environmental Science BSc (honours); Environmental Science & Mathematics BSc (honours); Environmental Science & Politics BSc (honours)

Undergraduate modules:
ENVU1BP - Building Planet Earth
ENVU5S5 - Living Soils
ENVU6EA - Methods and Applications in Environmental Sciences (module coordinator)
SCIU3LS - Practical Science Skills: Laboratory skills
SCIU9PS/SCIU9PR - Biological and Environmental Sciences Honours Project
UNIU9A1 - Wicked Problems, Sustainable Solutions

Postgraduate modules:
ENMPG18 - Dissertation
ENMPG30 - Dissertation
ENVU9PP – Environment Sector Placement
EPLPPG3 - Planetary Exploration (module coordinator)

Research programmes

Research centres/groups

Research themes