Tag Archives: Arabia Terra

HiRISE: Dark-toned pitted mound in a crater in NE Arabia Terra

Posted on March 26, 2014 by rburnham

This fascinating observation shows us a dark-toned mound with pits inside an impact crater. Are these pits the result of sublimation? The crater itself is an ancient one, as evidenced by the eroded rim. For the mound inside, HiRISE resolution … Continue reading →

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THEMIS: Dark slope streaks

Posted on March 4, 2014 by rburnham

THEMIS Image of the Day, March 4, 2014. Dark slope streaks are found everywhere on the inner rim of this unnamed crater in Arabia Terra. More THEMIS Images of the Day by geological topic.

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CRISM image: Mafic minerals in western Arabia Terra

Posted on February 28, 2014 by rburnham

The Arabia Terra region of Mars is an ancient, very heavily cratered region about 5,100 kilometers (3,170 miles) across, roughly the length of the United States! Arabia contains some of the oldest rocks on Mars. It is one of two … Continue reading →

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THEMIS image: Arabia Terra channel

Posted on February 21, 2014 by rburnham

THEMIS Image of the Day, February 21, 2014. This VIS image shows a small unnamed channel on the eastern margin of Arabia Terra. More THEMIS Images of the Day by geological topic.

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THEMIS image: Channels in Arabia Terra

Posted on February 20, 2014 by rburnham

THEMIS Image of the Day, February 20, 2014. This VIS image shows a portion of one of the numerous channels that dissect the northern margin of Arabia Terra. More THEMIS Images of the Day by geological topic.

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HiRISE image: Oxus Patera collapse feature

Posted on January 22, 2014 by rburnham

Oxus Patera is an ancient, eroded depression in northern Arabia Terra. It is not known how Oxus Patera formed, though it has been suggested that the feature represents an ancient caldera formed through collapse and explosive volcanism. Other possibilities include … Continue reading →

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Supervolcanos in Arabia on Mars: Update

Posted on October 4, 2013 by rburnham

The idea of giant volcanos erupting in Arabia was proposed by Joseph Michalski (Planetary Science Institute) in a talk at the Lunar and Planetary Science Conference in March 2013. Michalski and coauthor Jacob Bleacher (NASA Goddard Space Flight Center) have … Continue reading →

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Does Arabia show a new style of Martian volcanism?

Posted on March 25, 2013 by rburnham

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.

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Dune activity in Arabia and Meridiani

Posted on October 31, 2011 by rburnham

Mars continues to show itself active, at least as far as dunes are concerned. A new study published in Geophysical Research Letters (October 22, 2011) by a group of scientists led by Simone Silvestro (SETI Institute) reports on dune movements … Continue reading →

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