Travis S.J. Gabriel, Ph.D.
Travis is a Research Physical Scientist at the Astrogeology Science Center.
Professional Experience
Science Team Member – NASA Mars 2020, Perseverance Rover
Science Team Member – NASA Mars Science Laboratory, Curiosity Rover
Science and Products
Filter Total Items: 18
Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars
The Perseverance rover landed in Jezero crater, Mars, to investigate ancient lake and river deposits. We report observations of the crater floor, below the crater’s sedimentary delta, finding the floor consists of igneous rocks altered by water. The lowest exposed unit, informally named Séítah, is a coarsely crystalline olivine-rich rock, which accumulated at the base of a magma body. Fe...
Authors
K.A. Farley, K.M. Stack, D.L. Shuster, B.H.N. Horgan, J.A. Hurowitz, J. D. Tarnas, J.I. Simon, V.Z. Sun, E.L. Scheller, K.R. Moore, S.M. McLennan, P.M. Vasconcelos, R. Wiens, A.H. Treiman, L.E. Mayhew, O. Beyssac, T.V. Kizovski, N. Tosca, K.H. Williford, L.S. Crumpler, L.W. Beegle, J.F. Bell III, B.L. Ehlmann, Y. Liu, J.N. Maki, M. Schmidt, A.C. Allwood, H.E.F. Amundsen, R. Ghartia, T. Bosak, A.J. Brown, B. C. Clark, A. Cousin, O. Forni, Travis Gabriel, Y. Goreva, S. Gupta, S.-E. Hamran, C.D.K. Herd, K. Hickman-Lewis, J.R. Johnson, L.C. Kah, P. Kelemen, K.B. Kinch, L. Mandon, N. Mangold, C. Quantun-Nataf, M.S. Rice, P.S. Russell, S. Sharma, S. Siljestroem, A. Steele, R. Sullivan, M. Wadhwa, B. Weiss, A.J. Williams, B.V. Wogsland, P.A. Willis, T.A. Acosta-Maeda, B. Peck, K. Benzerara, S. Bernard, A.S. Burton, E. L. Cardarelli, B. Chide, E. Clave, E.A. Cloutis, A.D. Czaja, V. Debaille, E. Dehouck, A.G. Fairen, D.T. Flannery, S.Z. Fleron, T. Fouchet, J. Frydenvang, B.J. Garczynski, E.F. Gibbons, E.M. Hausrath, A.G. Hayes, J. Henneke, J.L. Jorgensen, E.M. Kelly, J. Lasue, S. Le Mouelic, J. M. Madariaga, S. Maurice, M. Merusi, P. Meslin, S.M. Milkovich, C.C. Million, R.C. Moeller, J.I. Nunez, A.M. Ollila, G. Paar, D.A. Paige, D.A.K. Pedersen, P. Pilleri, C. Pilorget, P.C. Pinet, J.W. Rice Jr., C. Royer, V. Sautter, M. Schulte, M. A. Sephton, S.K. Sharma, S.F. Sholes, N. Spanovich, M. St. Clair, C.D. Tate, K. Uckert, S.J. VanBommel, A.G. Yanchilina, M. Zorzano
In situ recording of Mars soundscape In situ recording of Mars soundscape
Prior to the Perseverance rover landing, the acoustic environment of Mars was unknown. Models predicted that: (i) atmospheric turbulence changes at centimeter scales or smaller at the point where molecular viscosity converts kinetic energy into heat1, (ii) the speed of sound varies at the surface with frequency2,3, and (iii) high frequency waves are strongly attenuated with distance in...
Authors
Sylvestre Maurice, Baptiste Chide, Naomi Murdoch, Ralph Lorenz, David Mimoun, Roger Wiens, Alexander Stott, X. Jacob, T. Bertrand, F. Montmessin, Nina Lanza, C. Alvarez-Llamas, S. Angel, M. Aung, J. Balaram, O. Beyssac, A. Cousin, G. Delory, O. Forni, T. Fouchet, O. Gasnault, H. Grip, M. Hecht, J. Hoffman, J. Laserna, J. Lasue, J. Maki, J. McClean, P. Meslin, S. Le Mouélic, A. Munguira, C. Newman, J. Rodriguez Manfredi, J. Moros, A. Ollila, P. Pilleri, S.E. Schröder, M. de la Torre Juarez, T. Tzanetos, K. Stack, K. Farley, K. Williford, T. Acosta-Maeda, Ryan Anderson, D.M. Applin, G. Arana, M. Bassas-Portus, R. Beal, P.S.A. Beck, K. Benzerara, S. Bernard, P. Bernardi, T. Bosak, B. Bousquet, A.J. Brown, A. Cadu, P. Caïs, K. Castro, E. Clavé, S. Clegg, E. Cloutis, S. Connell, A. Debus, E. Dehouck, D. Delapp, C. Donny, A. Dorresoundiram, G. Dromart, B. Dubois, C. Fabre, A. Fau, W. Fischer, R. Francis, J. Frydenvang, Travis Gabriel, E. Gibbons, I. Gontijo, J. R. Johnson, H. Kalucha, E. Kelly, E. Knutsen, G. Lacombe, C. Legett, R. Leveille, E. Lewin, G. Lopez-Reyes, E. Lorigny, J. Madariaga, M. Madsen, S. Madsen, L. Mandon, N. Mangold, M. Mann, J.-A. Manrique, J. Martinez-Frias, L.E. Mayhew, F. Meunier, T. McConnochie, S. M. McLennan, G. Montagnac, V. Mousset, T. Nelson, R. Newell, Y. Parot, C. Pilorget, P. Pinet, G. Pont, C. Quantin-Nataf, B. Quertier, W. Rapin, A. Reyes-Newell, S. Robinson, L. Rochas, C. Royer, F. Rull, V. Sautter, S. Sharma, V. Shridar, A. Sournac, M. Toplis, I. Torre-Fdez, N. Turenne, A. Udry, M. Veneranda, D. Venhaus, D. Vogt, P. Willis
Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy
The SuperCam instrument on the Perseverance Mars 2020 rover uses a pulsed 1064 nm laser to ablate targets at a distance and conduct laser induced breakdown spectroscopy (LIBS) by analyzing the light from the resulting plasma. SuperCam LIBS spectra are preprocessed to remove ambient light, noise, and the continuum signal present in LIBS observations. Prior to quantification, spectra are...
Authors
Ryan Anderson, Olivier Forni, Agnes Cousin, Roger Wiens, Samuel Clegg, Jens Frydenvang, Travis Gabriel, Ann Ollila, Susanne Schröder, Olivier Beyssac, Erin Gibbons, David Vogt, Elise Clave, Jose-Antonio Manrique, Carey Legett, Paolo Pilleri, Raymond Newell, Joseph Sarrao, Sylvestre Maurice, Gorka Arana, Karim Benzerara, Pernelle Bernardi, Sylvain Bernard, Bruno Bousquet, Adrian Brown, Cesar Alvarez-Llamas, Baptiste Chide, Edward Cloutis, Jade Comellas, Stephanie Connell, Erwin Dehouck, Dorothea Delapp, Ari Essunfeld, Cecile Fabre, Thierry Fouchet, Cristina Garcia, Laura Garcia-Gomez, Patrick Gasda, Olivier Gasnault, Elisabeth Hausrath, Nina Lanza, Javier Laserna, Jeremie Lasue, Guillermo Lopez, Juan Madariaga, Lucia Mandon, Nicolas Mangold, Pierre-Yves Meslin, Marion Nachon, Anthony Nelson, Horton Newsom, Adriana Reyes-Newell, Scott Robinson, Fernando Rull, Shiv Sharma, Justin Simon, Pablo Sobron, Imanol Torre Fernandez, Arya Udry, Dawn Venhaus, Scott McLennan, Richard V. Morris, Bethany Ehlmann
Clustering supported classification of ChemCam data from Gale crater, Mars Clustering supported classification of ChemCam data from Gale crater, Mars
The Chemistry and Camera (ChemCam) instrument on board the MSL rover Curiosity has collected a very large and unique dataset of in-situ spectra and images of Mars since landing in August 2012. More than 800,000 single shot LIBS (laser-induced breakdown spectroscopy) spectra measured on more than 2,500 individual targets were returned so far by ChemCam. Such a dataset is ideally suited...
Authors
K. Rammelkamp, Olivier Gasnault, Olivier Forni, Candice Bedford, Erwin Dehouck, Agnes Cousin, Jeremie Lasue, Gael David, Travis Gabriel, Sylvestre Maurice, Roger Wiens
Active neutron interrogation experiments and simulation verification using the SIngle-scintillator Neutron and Gamma-Ray spectrometer (SINGR) for geosciences Active neutron interrogation experiments and simulation verification using the SIngle-scintillator Neutron and Gamma-Ray spectrometer (SINGR) for geosciences
We present a new SIngle-scintillator Neutron and Gamma Ray spectrometer (SINGR) instrument for use with both passive and active measurement techniques. Here we discuss the application of SINGR for planetary exploration missions, however, hydrology, nuclear non-proliferation, and resource prospecting are all potential areas where the instrument could be applied. SINGR uses an elpasolite
Authors
Lena Heffern, Craig Hardgrove, Ann Parsons, E. Johnson, R. Starr, G. Stoddard, R. Blakeley, T. Prettyman, Travis Gabriel, H. Barnaby, J. Christian, M.A. Unzueta, C. Tate, Alynn Martin, J. Moersch
Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign
This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a hematite spectral signature. Curiosity conducted...
Authors
Abigail Fraeman, Lauren Edgar, Elizabeth Rampe, Lucy Thompson, Jens Frydenvang, Christopher Fedo, Jeff Catalano, William Dietrich, Travis Gabriel, John Grotzinger, Jonas L’Haridon, Nicholas Mangold, Vivian Sun, Christopher House, Alexander Bryk, Craig Hardgrove, Sean Czarnecki, Kathryn Stack, Richard V. Morris, Ray Arvidson, Steve Banham, Kristen Bennett, Jon Bridges, Christopher S. Edwards, Woodward Fischer, Valerie Fox, Sanjeev Gupta, Briony H. N. Horgan, Sammantha Jacob, Jeffrey Johnson, Sarah Johnson, David Rubin, Mark Salvatore, Susanne Schwenzer, Kirsten Siebach, Nathan Stein, Stuart Turner, Danika F. Wellington, Roger Wiens, Amy Williams, G.A. Davidson, Gregory Wong
Science and Products
Filter Total Items: 18
Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars
The Perseverance rover landed in Jezero crater, Mars, to investigate ancient lake and river deposits. We report observations of the crater floor, below the crater’s sedimentary delta, finding the floor consists of igneous rocks altered by water. The lowest exposed unit, informally named Séítah, is a coarsely crystalline olivine-rich rock, which accumulated at the base of a magma body. Fe...
Authors
K.A. Farley, K.M. Stack, D.L. Shuster, B.H.N. Horgan, J.A. Hurowitz, J. D. Tarnas, J.I. Simon, V.Z. Sun, E.L. Scheller, K.R. Moore, S.M. McLennan, P.M. Vasconcelos, R. Wiens, A.H. Treiman, L.E. Mayhew, O. Beyssac, T.V. Kizovski, N. Tosca, K.H. Williford, L.S. Crumpler, L.W. Beegle, J.F. Bell III, B.L. Ehlmann, Y. Liu, J.N. Maki, M. Schmidt, A.C. Allwood, H.E.F. Amundsen, R. Ghartia, T. Bosak, A.J. Brown, B. C. Clark, A. Cousin, O. Forni, Travis Gabriel, Y. Goreva, S. Gupta, S.-E. Hamran, C.D.K. Herd, K. Hickman-Lewis, J.R. Johnson, L.C. Kah, P. Kelemen, K.B. Kinch, L. Mandon, N. Mangold, C. Quantun-Nataf, M.S. Rice, P.S. Russell, S. Sharma, S. Siljestroem, A. Steele, R. Sullivan, M. Wadhwa, B. Weiss, A.J. Williams, B.V. Wogsland, P.A. Willis, T.A. Acosta-Maeda, B. Peck, K. Benzerara, S. Bernard, A.S. Burton, E. L. Cardarelli, B. Chide, E. Clave, E.A. Cloutis, A.D. Czaja, V. Debaille, E. Dehouck, A.G. Fairen, D.T. Flannery, S.Z. Fleron, T. Fouchet, J. Frydenvang, B.J. Garczynski, E.F. Gibbons, E.M. Hausrath, A.G. Hayes, J. Henneke, J.L. Jorgensen, E.M. Kelly, J. Lasue, S. Le Mouelic, J. M. Madariaga, S. Maurice, M. Merusi, P. Meslin, S.M. Milkovich, C.C. Million, R.C. Moeller, J.I. Nunez, A.M. Ollila, G. Paar, D.A. Paige, D.A.K. Pedersen, P. Pilleri, C. Pilorget, P.C. Pinet, J.W. Rice Jr., C. Royer, V. Sautter, M. Schulte, M. A. Sephton, S.K. Sharma, S.F. Sholes, N. Spanovich, M. St. Clair, C.D. Tate, K. Uckert, S.J. VanBommel, A.G. Yanchilina, M. Zorzano
In situ recording of Mars soundscape In situ recording of Mars soundscape
Prior to the Perseverance rover landing, the acoustic environment of Mars was unknown. Models predicted that: (i) atmospheric turbulence changes at centimeter scales or smaller at the point where molecular viscosity converts kinetic energy into heat1, (ii) the speed of sound varies at the surface with frequency2,3, and (iii) high frequency waves are strongly attenuated with distance in...
Authors
Sylvestre Maurice, Baptiste Chide, Naomi Murdoch, Ralph Lorenz, David Mimoun, Roger Wiens, Alexander Stott, X. Jacob, T. Bertrand, F. Montmessin, Nina Lanza, C. Alvarez-Llamas, S. Angel, M. Aung, J. Balaram, O. Beyssac, A. Cousin, G. Delory, O. Forni, T. Fouchet, O. Gasnault, H. Grip, M. Hecht, J. Hoffman, J. Laserna, J. Lasue, J. Maki, J. McClean, P. Meslin, S. Le Mouélic, A. Munguira, C. Newman, J. Rodriguez Manfredi, J. Moros, A. Ollila, P. Pilleri, S.E. Schröder, M. de la Torre Juarez, T. Tzanetos, K. Stack, K. Farley, K. Williford, T. Acosta-Maeda, Ryan Anderson, D.M. Applin, G. Arana, M. Bassas-Portus, R. Beal, P.S.A. Beck, K. Benzerara, S. Bernard, P. Bernardi, T. Bosak, B. Bousquet, A.J. Brown, A. Cadu, P. Caïs, K. Castro, E. Clavé, S. Clegg, E. Cloutis, S. Connell, A. Debus, E. Dehouck, D. Delapp, C. Donny, A. Dorresoundiram, G. Dromart, B. Dubois, C. Fabre, A. Fau, W. Fischer, R. Francis, J. Frydenvang, Travis Gabriel, E. Gibbons, I. Gontijo, J. R. Johnson, H. Kalucha, E. Kelly, E. Knutsen, G. Lacombe, C. Legett, R. Leveille, E. Lewin, G. Lopez-Reyes, E. Lorigny, J. Madariaga, M. Madsen, S. Madsen, L. Mandon, N. Mangold, M. Mann, J.-A. Manrique, J. Martinez-Frias, L.E. Mayhew, F. Meunier, T. McConnochie, S. M. McLennan, G. Montagnac, V. Mousset, T. Nelson, R. Newell, Y. Parot, C. Pilorget, P. Pinet, G. Pont, C. Quantin-Nataf, B. Quertier, W. Rapin, A. Reyes-Newell, S. Robinson, L. Rochas, C. Royer, F. Rull, V. Sautter, S. Sharma, V. Shridar, A. Sournac, M. Toplis, I. Torre-Fdez, N. Turenne, A. Udry, M. Veneranda, D. Venhaus, D. Vogt, P. Willis
Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy
The SuperCam instrument on the Perseverance Mars 2020 rover uses a pulsed 1064 nm laser to ablate targets at a distance and conduct laser induced breakdown spectroscopy (LIBS) by analyzing the light from the resulting plasma. SuperCam LIBS spectra are preprocessed to remove ambient light, noise, and the continuum signal present in LIBS observations. Prior to quantification, spectra are...
Authors
Ryan Anderson, Olivier Forni, Agnes Cousin, Roger Wiens, Samuel Clegg, Jens Frydenvang, Travis Gabriel, Ann Ollila, Susanne Schröder, Olivier Beyssac, Erin Gibbons, David Vogt, Elise Clave, Jose-Antonio Manrique, Carey Legett, Paolo Pilleri, Raymond Newell, Joseph Sarrao, Sylvestre Maurice, Gorka Arana, Karim Benzerara, Pernelle Bernardi, Sylvain Bernard, Bruno Bousquet, Adrian Brown, Cesar Alvarez-Llamas, Baptiste Chide, Edward Cloutis, Jade Comellas, Stephanie Connell, Erwin Dehouck, Dorothea Delapp, Ari Essunfeld, Cecile Fabre, Thierry Fouchet, Cristina Garcia, Laura Garcia-Gomez, Patrick Gasda, Olivier Gasnault, Elisabeth Hausrath, Nina Lanza, Javier Laserna, Jeremie Lasue, Guillermo Lopez, Juan Madariaga, Lucia Mandon, Nicolas Mangold, Pierre-Yves Meslin, Marion Nachon, Anthony Nelson, Horton Newsom, Adriana Reyes-Newell, Scott Robinson, Fernando Rull, Shiv Sharma, Justin Simon, Pablo Sobron, Imanol Torre Fernandez, Arya Udry, Dawn Venhaus, Scott McLennan, Richard V. Morris, Bethany Ehlmann
Clustering supported classification of ChemCam data from Gale crater, Mars Clustering supported classification of ChemCam data from Gale crater, Mars
The Chemistry and Camera (ChemCam) instrument on board the MSL rover Curiosity has collected a very large and unique dataset of in-situ spectra and images of Mars since landing in August 2012. More than 800,000 single shot LIBS (laser-induced breakdown spectroscopy) spectra measured on more than 2,500 individual targets were returned so far by ChemCam. Such a dataset is ideally suited...
Authors
K. Rammelkamp, Olivier Gasnault, Olivier Forni, Candice Bedford, Erwin Dehouck, Agnes Cousin, Jeremie Lasue, Gael David, Travis Gabriel, Sylvestre Maurice, Roger Wiens
Active neutron interrogation experiments and simulation verification using the SIngle-scintillator Neutron and Gamma-Ray spectrometer (SINGR) for geosciences Active neutron interrogation experiments and simulation verification using the SIngle-scintillator Neutron and Gamma-Ray spectrometer (SINGR) for geosciences
We present a new SIngle-scintillator Neutron and Gamma Ray spectrometer (SINGR) instrument for use with both passive and active measurement techniques. Here we discuss the application of SINGR for planetary exploration missions, however, hydrology, nuclear non-proliferation, and resource prospecting are all potential areas where the instrument could be applied. SINGR uses an elpasolite
Authors
Lena Heffern, Craig Hardgrove, Ann Parsons, E. Johnson, R. Starr, G. Stoddard, R. Blakeley, T. Prettyman, Travis Gabriel, H. Barnaby, J. Christian, M.A. Unzueta, C. Tate, Alynn Martin, J. Moersch
Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign
This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a hematite spectral signature. Curiosity conducted...
Authors
Abigail Fraeman, Lauren Edgar, Elizabeth Rampe, Lucy Thompson, Jens Frydenvang, Christopher Fedo, Jeff Catalano, William Dietrich, Travis Gabriel, John Grotzinger, Jonas L’Haridon, Nicholas Mangold, Vivian Sun, Christopher House, Alexander Bryk, Craig Hardgrove, Sean Czarnecki, Kathryn Stack, Richard V. Morris, Ray Arvidson, Steve Banham, Kristen Bennett, Jon Bridges, Christopher S. Edwards, Woodward Fischer, Valerie Fox, Sanjeev Gupta, Briony H. N. Horgan, Sammantha Jacob, Jeffrey Johnson, Sarah Johnson, David Rubin, Mark Salvatore, Susanne Schwenzer, Kirsten Siebach, Nathan Stein, Stuart Turner, Danika F. Wellington, Roger Wiens, Amy Williams, G.A. Davidson, Gregory Wong