2004/03/01 by J. B. Plescia · 1 citation
Physics and Astronomy · Engineering · #Planetary Science and Exploration #Space Science and Extraterrestrial Life #Space Exploration and Technology
paper · pdf · doi:10.1029/2002je002031
openalex publication_date 2004/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23
Mars Orbiter Laser Altimeter (MOLA) data have been used to construct Digital Elevation Models (DEM) of the Martian volcanoes in order to determine height, flank slope, caldera depth, and volumes. Summit elevations range from 21.1 km to −0.5 km, and relief varies from 1.0 km to almost 22 km. Average flank slopes are in the range of <1° to ∼10°, consistent with basaltic shield volcanism. The very low slopes of highland patera are also consistent with pyroclastic volcanism. Minimum volumes range from <10 12 to 10 15 m 3 . Estimates of the time required to build these volcanoes, on the basis of long‐term terrestrial eruption rates, range from hundreds of thousands to tens of millions of years.