J
J. Foh
Researcher at University of Mainz
Publications - 10
Citations - 1901
J. Foh is an academic researcher from University of Mainz. The author has contributed to research in topics: Composition of Mars & Hematite. The author has an hindex of 8, co-authored 10 publications receiving 1786 citations. Previous affiliations of J. Foh include Technische Universität Darmstadt.
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Journal ArticleDOI
Jarosite and hematite at Meridiani Planum from Opportunity's Mössbauer spectrometer
Göstar Klingelhöfer,R. V. Morris,B. Bernhardt,Christian Schröder,Daniel Rodionov,P. A. de Souza,Albert S. Yen,Ralf Gellert,E. N. Evlanov,B. Zubkov,J. Foh,J. Foh,Uwe Bonnes,E. Kankeleit,Philipp Gütlich,D. W. Ming,Franz Renz,Thomas J. Wdowiak,Steven W. Squyres,Raymond E. Arvidson +19 more
TL;DR: Mössbauer spectra measured by the Opportunity rover revealed four mineralogical components in Meridiani Planum at Eagle crater: jarosite- and hematite-rich outcrop, hematITE-rich soil, olivine-bearing basaltic soil, and a pyroxene-bearing Basaltic rock (Bounce rock).
Journal ArticleDOI
Mössbauer mineralogy of rock, soil, and dust at Gusev crater, Mars: Spirit's journey through weakly altered olivine basalt on the plains and pervasively altered basalt in the Columbia Hills
R. V. Morris,Göstar Klingelhöfer,Christian Schröder,Daniel Rodionov,Albert S. Yen,D. W. Ming,P. A. de Souza,Iris Fleischer,Thomas J. Wdowiak,R. Gellert,B. Bernhardt,E. N. Evlanov,B. Zubkov,J. Foh,J. Foh,Uwe Bonnes,E. Kankeleit,Philipp Gütlich,Franz Renz,Steven W. Squyres,Raymond E. Arvidson +20 more
TL;DR: The Moessbauer spectrometer on Spirit measured the oxidation state of Fe, identified Fe-bearing phases, and measured relative abundances of Fe among those phases for surface materials on the plains and in the Columbia Hills of Gusev crater as discussed by the authors.
Journal ArticleDOI
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
R. V. Morris,Göstar Klingelhöfer,Christian Schröder,Daniel Rodionov,Albert S. Yen,Douglas W. Ming,P. A. de Souza,Thomas J. Wdowiak,Iris Fleischer,Ralf Gellert,B. Bernhardt,Uwe Bonnes,Barbara A. Cohen,E. N. Evlanov,J. Foh,J. Foh,Philipp Gütlich,E. Kankeleit,Timothy J. McCoy,David W. Mittlefehldt,Franz Renz,M. E. Schmidt,B. Zubkov,Steven W. Squyres,Raymond E. Arvidson +24 more
TL;DR: Gutlich, E Kankeleit, T McCoy, DW Mittlefehldt, F Renz, ME Schmidt, B Zubkov, SW Squyres, RE Arvidson
Journal ArticleDOI
Mineralogy at Gusev Crater from the Mossbauer spectrometer on the Spirit Rover
R. V. Morris,Göstar Klingelhöfer,B. Bernhardt,Christian Schröder,Daniel Rodionov,P. A. de Souza,Albert S. Yen,Ralf Gellert,E. N. Evlanov,J. Foh,J. Foh,E. Kankeleit,Philipp Gütlich,Douglas W. Ming,Franz Renz,Thomas J. Wdowiak,Steven W. Squyres,Raymond E. Arvidson +17 more
TL;DR: The ubiquitous presence of olivine in soil suggests that physical rather than chemical weathering processes currently dominate at Gusev crater.
Journal ArticleDOI
Athena MIMOS II Mössbauer spectrometer investigation
Göstar Klingelhöfer,Richard V. Morris,B. Bernhardt,Daniel Rodionov,P. A. de Souza,Steven W. Squyres,J. Foh,E. Kankeleit,Uwe Bonnes,Ralf Gellert,Christian Schröder,S. Linkin,E. N. Evlanov,B. Zubkov,O. F. Prilutski +14 more
TL;DR: Mossbauer spectroscopy is a powerful tool for quantitative mineralogical analysis of Fe-bearing materials as discussed by the authors, and it has been used extensively in the Mars Exploration Rover missions.