Tag Archives: Apollinaris Patera

HiRISE: Contact between Apollinaris Patera and the Medusae Fossae formation

Posted on June 29, 2018 by rburnham

Contact between Apollinaris Patera and the Medusae Fossae formation. Let’s hope they get along. (The Medusae Fossae Formation is to the right in this image and is noticeable for the yardangs — those long, high standing rock formations — we … Continue reading →

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HiRISE: Yardangs from Apollonaris Patera

Posted on August 14, 2015 by rburnham

We see here a terrain with an incredible morphologic dichotomy: a relatively smooth region that transitions into sharp ridges. These ridges, aligned in the nearly same direction, are called yardangs. Yardangs are not unique to Mars. Many yardangs can be … Continue reading →

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When Apollinaris Patera went boom

Posted on November 16, 2011 by rburnham

Stretching more than 5,000 kilometers (3,000 miles) between the two volcanic centers of Tharsis and Elysium is a geological enigma, the Medusae Fossae formation. The formation, which lies in several separate patches, appears to be made of easily eroded materials, … Continue reading →

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How to date a volcano

Posted on May 16, 2011 by rburnham

Without rock samples to analyze in a laboratory, how can you tell the age of a Martian volcano? A team led by Stuart Robbins (University of Colorado) used high-resolution images to count craters in the calderas (summit collapse pits) of … Continue reading →

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