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
Likely ferromagnetic minerals identified by the Perseverance rover and implications for future paleomagnetic analyses of returned Martian samples Likely ferromagnetic minerals identified by the Perseverance rover and implications for future paleomagnetic analyses of returned Martian samples
Although Mars today does not have a core dynamo, magnetizations in the Martian crust and in meteorites suggest a magnetic field was present prior to 3.7 billion years (Ga) ago. However, the lack of ancient, oriented Martian bedrock samples available on Earth has prevented accurate estimates of the dynamo's intensity, lifetime, and direction. Constraining the nature and lifetime of the...
Authors
M.N. Mansbach, T.V. Kizovski, E. L. Scheller, T. Bosak, L. Mandon, B. Horgan, R.C. Wiens, C.D.K. Herd, S. Sharma, J.R. Johnson, Travis S.J. Gabriel, O. Forni, B.P. Weiss
A new database of giant impacts over a wide range of masses and with material strength: A first analysis of outcomes A new database of giant impacts over a wide range of masses and with material strength: A first analysis of outcomes
In the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here, we present a high-resolution database of giant impacts for differentiated colliding bodies of iron–silicate composition, with target masses ranging from 1 × 10−4M⊕ up to super-Earths (5 M⊕). We vary the impactor-to-target mass ratio, core–mantle (iron...
Authors
Alexandre Emsenhuber, Erik Asphaug, Saverio Cambioni, Travis S.J. Gabriel, Stephen R. Schwartz, Robert E. Melikyan, C. Adeene Denton
Moon-forming impactor as a source of Earth’s basal mantle anomalies Moon-forming impactor as a source of Earth’s basal mantle anomalies
Seismic images of Earth’s interior have revealed two continent-sized anomalies with low seismic velocities, known as the large low-velocity provinces (LLVPs), in the lowermost mantle. The LLVPs are often interpreted as intrinsically dense heterogeneities that are compositionally distinct from the surrounding mantle. Here we show that LLVPs may represent buried relics of Theia mantle...
Authors
Qian Yuan, Mingming Li, Steven J. Desch, Byeongkwan Ko, Hongping Deng, Edward J. Garnero, Travis S.J. Gabriel, Jacob A. Kegerreis, Yoshinori Miyazaki, Vincent Eke, Paul D. Asimow
The role of giant impacts in planet formation The role of giant impacts in planet formation
Planets are expected to conclude their growth through a series of giant impacts: energetic, global events that significantly alter planetary composition and evolution. Computer models and theory have elucidated the diverse outcomes of giant impacts in detail, improving our ability to interpret collision conditions from observations of their remnants. However, many open questions remain...
Authors
Travis S.J. Gabriel, Saverio Cambioni
Assessment of lunar resource exploration in 2022 Assessment of lunar resource exploration in 2022
The idea of mining the Moon, once purely science-fiction, is now on the verge of becoming reality. Taking advantage of the resources on the Moon is part of the plans of many nations and some enterprising commercial entities; demonstrating in-situ (in place) resource utilization near the lunar south pole is an explicit goal of the United States’ Artemis program. Economic extraction and...
Authors
Laszlo P. Keszthelyi, Joshua A. Coyan, Kristen A. Bennett, Lillian R. Ostrach, Lisa R. Gaddis, Travis S.J. Gabriel, Justin Hagerty
An examination of soil crusts on the floor of Jezero crater, Mars An examination of soil crusts on the floor of Jezero crater, Mars
Martian soils are critically important for understanding the history of Mars, past potentially habitable environments, returned samples, and future human exploration. This paper examines soil crusts on the floor of Jezero crater encountered during initial phases of the Mars 2020 mission. Soil surface crusts have been observed on Mars at other locations, starting with the two Viking...
Authors
E.M. Hausrath, C. T. Adcock, A. Bechtold, P.S.A. Beck, K. Benison, A.J. Brown, E. L. Cardarelli, N. A. Carman, B. Chide, J. Christian, B. C. Clark, E. Cloutis, A. Cousin, O. Forni, Travis S.J. Gabriel, O. Gasnault, M. P. Golombek, F. Gomez, M. H. Hecht, T. L. J. Henley, J. Huidobro, J. C. Johnson, M. W. M. Jones, P. B. Kelemen, A. Knight, J. A. Lasue, S. Le Mouelic, J. M. Madariaga, J. N. Maki, L. Mandon, G. Martinez, J. Martinez-Frias, T. H. McConnochie, P. #NAME? Meslin, M. #NAME? Zorzano, H. Newsom, G. Paar, N. Randazzo, C. Royer, S. Siljestroem, M. E. Schmidt, S. Schroeder, M. A. Sephton, R. Sullivan, N. Turenne, A. Udry, S. VanBommel, A. Vaughan, R. C. Wiens, N. Williams
Science and Products
Filter Total Items: 18
Likely ferromagnetic minerals identified by the Perseverance rover and implications for future paleomagnetic analyses of returned Martian samples Likely ferromagnetic minerals identified by the Perseverance rover and implications for future paleomagnetic analyses of returned Martian samples
Although Mars today does not have a core dynamo, magnetizations in the Martian crust and in meteorites suggest a magnetic field was present prior to 3.7 billion years (Ga) ago. However, the lack of ancient, oriented Martian bedrock samples available on Earth has prevented accurate estimates of the dynamo's intensity, lifetime, and direction. Constraining the nature and lifetime of the...
Authors
M.N. Mansbach, T.V. Kizovski, E. L. Scheller, T. Bosak, L. Mandon, B. Horgan, R.C. Wiens, C.D.K. Herd, S. Sharma, J.R. Johnson, Travis S.J. Gabriel, O. Forni, B.P. Weiss
A new database of giant impacts over a wide range of masses and with material strength: A first analysis of outcomes A new database of giant impacts over a wide range of masses and with material strength: A first analysis of outcomes
In the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here, we present a high-resolution database of giant impacts for differentiated colliding bodies of iron–silicate composition, with target masses ranging from 1 × 10−4M⊕ up to super-Earths (5 M⊕). We vary the impactor-to-target mass ratio, core–mantle (iron...
Authors
Alexandre Emsenhuber, Erik Asphaug, Saverio Cambioni, Travis S.J. Gabriel, Stephen R. Schwartz, Robert E. Melikyan, C. Adeene Denton
Moon-forming impactor as a source of Earth’s basal mantle anomalies Moon-forming impactor as a source of Earth’s basal mantle anomalies
Seismic images of Earth’s interior have revealed two continent-sized anomalies with low seismic velocities, known as the large low-velocity provinces (LLVPs), in the lowermost mantle. The LLVPs are often interpreted as intrinsically dense heterogeneities that are compositionally distinct from the surrounding mantle. Here we show that LLVPs may represent buried relics of Theia mantle...
Authors
Qian Yuan, Mingming Li, Steven J. Desch, Byeongkwan Ko, Hongping Deng, Edward J. Garnero, Travis S.J. Gabriel, Jacob A. Kegerreis, Yoshinori Miyazaki, Vincent Eke, Paul D. Asimow
The role of giant impacts in planet formation The role of giant impacts in planet formation
Planets are expected to conclude their growth through a series of giant impacts: energetic, global events that significantly alter planetary composition and evolution. Computer models and theory have elucidated the diverse outcomes of giant impacts in detail, improving our ability to interpret collision conditions from observations of their remnants. However, many open questions remain...
Authors
Travis S.J. Gabriel, Saverio Cambioni
Assessment of lunar resource exploration in 2022 Assessment of lunar resource exploration in 2022
The idea of mining the Moon, once purely science-fiction, is now on the verge of becoming reality. Taking advantage of the resources on the Moon is part of the plans of many nations and some enterprising commercial entities; demonstrating in-situ (in place) resource utilization near the lunar south pole is an explicit goal of the United States’ Artemis program. Economic extraction and...
Authors
Laszlo P. Keszthelyi, Joshua A. Coyan, Kristen A. Bennett, Lillian R. Ostrach, Lisa R. Gaddis, Travis S.J. Gabriel, Justin Hagerty
An examination of soil crusts on the floor of Jezero crater, Mars An examination of soil crusts on the floor of Jezero crater, Mars
Martian soils are critically important for understanding the history of Mars, past potentially habitable environments, returned samples, and future human exploration. This paper examines soil crusts on the floor of Jezero crater encountered during initial phases of the Mars 2020 mission. Soil surface crusts have been observed on Mars at other locations, starting with the two Viking...
Authors
E.M. Hausrath, C. T. Adcock, A. Bechtold, P.S.A. Beck, K. Benison, A.J. Brown, E. L. Cardarelli, N. A. Carman, B. Chide, J. Christian, B. C. Clark, E. Cloutis, A. Cousin, O. Forni, Travis S.J. Gabriel, O. Gasnault, M. P. Golombek, F. Gomez, M. H. Hecht, T. L. J. Henley, J. Huidobro, J. C. Johnson, M. W. M. Jones, P. B. Kelemen, A. Knight, J. A. Lasue, S. Le Mouelic, J. M. Madariaga, J. N. Maki, L. Mandon, G. Martinez, J. Martinez-Frias, T. H. McConnochie, P. #NAME? Meslin, M. #NAME? Zorzano, H. Newsom, G. Paar, N. Randazzo, C. Royer, S. Siljestroem, M. E. Schmidt, S. Schroeder, M. A. Sephton, R. Sullivan, N. Turenne, A. Udry, S. VanBommel, A. Vaughan, R. C. Wiens, N. Williams