-
Recent Posts
Archives
Links
general
mission instruments
- CRISM: Compact Reconnaissance Imaging Spectrometer for Mars
- CTX: Context Camera
- HiRISE: High Resolution Imaging Science Experiment
- MARSIS: Mars Advanced Radar for Subsurface and Ionosphere Sounding
- SHARAD: Shallow Radar
- THEMIS: Thermal Emission Imaging System
missions
- All Mars missions list
- Curiosity rover
- ExoMars
- Hope (al-Amal) orbiter
- InSight
- Mars Atmosphere and Volatile Evolution Mission (MAVEN)
- Mars Exploration Rovers (MER)
- Mars Express (MEX)
- Mars Odyssey
- Mars Orbiter Mission (MOM) / Mangalyaan
- Mars Reconnaissance Orbiter (MRO)
- Mars Science Laboratory (MSL)
- Perseverance Rover
- Tianwen-1 orbiter/rover
news
Tag Archives: pyroclastic eruptions
THEMIS: Channels in volcanic ash
THEMIS Image of the Day, August 22, 2018. Tyrrhenus Mons is one of the oldest martian volcanoes and Tyrrhena Fossae is the largest of the channels dissecting the volcano. As well as being one of the oldest volcanoes, it is … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, fluvial channels, Mars Odyssey, NASA, pyroclastic eruptions, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Tyrrhena Fossae, Tyrrhenus Mons, volcanic ash, volcanics
Comments Off
Medusae Fossae formation is likely a deposit from explosive volcanism
[Editor’s note: From a paper by Lujendra Ojha and Kevin Lewis recently published in the Journal of Geophysical Research.] The Medusae Fossae Formation is one of the largest sedimentary deposits on Mars. Its origin is uncertain, though several processes including volcanic, … Continue reading
Posted in Reports
Tagged atmosphere, Medusae Fossae, Medusae Fossae Formation, Medusae Sulci, pyroclastic eruptions
Comments Off
THEMIS: Wind-eroded Medusae Fossae formation
THEMIS Image of the Day, June 11, 2018. This VIS image shows part of Medusa Fossae. Winds have eroded materials in this region, creating ridges and valleys aligned with the direction of the wind. The formation materials appear soft and … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Mars Odyssey, Medusae Fossae Formation, NASA, pyroclastic eruptions, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion
Comments Off
Everything you wanted to know about Martian scoria cones, but were afraid to ask…
Planetary Geomorphology Image of the Month, January 30, 2017: Petr Brož (Institute of Geophysics, Czech Academy of Science). Volcanism is an important process which shapes the surfaces of all terrestrial planets, and is still active on Earth, Jupiter’s moon Io, … Continue reading
Does Arabia show a new style of Martian volcanism?
Arabia is one of the largest and oldest regions of Mars. Among its varied rocks are widespread deposits of soft and easily eroded ones which may have a volcanic origin. However, Arabia has no obvious volcanic vents or sources.
Posted in Reports
Tagged Arabia Terra, Eden Patera, Euphrates Patera, explosive volcanism, Ismenia Patera, LPSC 2013, Oxus Patera, pyroclastic eruptions, Semeykin Crater, Siloe Patera, volcanism, volcanos
Comments Off
Explosive eruptions in dense ancient atmospheres
Explosive volcanic eruptions on an earlier Mars with a thicker atmosphere would have scattered fine ash (pyroclastic debris) mainly east or west of the volcano, a new study finds. Also, a denser ancient atmosphere supports the addition of Arsia and … Continue reading
Posted in Reports
Tagged Apollinaris Mons, Arsia Mons, atmosphere, Medusae Fossae Formation, Pavonis Mons, pyroclastic eruptions, volcanic ash, volcanos
Comments Off
Did Tharsis change its volcanic style?
Volcanic activity on Mars tends toward an “effusive” eruption style: it produces many low-profile, broad-skirted volcanos. These are made with sheets of runny lavas that flow like warm motor oil for long distances, spilling over and around obstacles or burying … Continue reading
Posted in Reports
Tagged cinder cones, lava flows, pyroclastic eruptions, Tharsis, volcanos
Comments Off