Ascraeus Mons Lava Flow Figure 1. Flow margin and channel
outlines of the Ascraeus Mons flow. Flow sections (proximal,
medial, distal), distances from inferred source area, and
previous topography (dome, crater) are labeled. Outline is of a
mosaic of non map-projected THEMIS daytime infrared images. (b)
Locations of THEMIS and MOC visible images listed by figure
number.1 Longer than any known lava flow on Earth, the channeled
lava flow of Ascraeus Mons Volcano, Mars is 690 km (429 miles)
long1. Though enormous compared to terrestrial counterparts, the
Ascraeus Mons flow has similar morphological features to the
1907 flow on Mauna Loa Volcano and the Mana flows of Mauna Kea
Volcano, Hawaii1. Combining field work data from the Hawaiian
field sites, orbital images of Ascraeus Mons, and experimental
modeling, we were able to measure the width, length, and volume
at different points along the Ascraeus Mons flow, calculate
effusion rates, estimate the flow's duration, and interpret the
formation processes for the f