Olympus Mons Martian surface atmospheric pressure is less than one percent of Earth's, the much lower gravity of Mars increases the atmosphere's scale height; in other words, Mars's atmosphere is expansive and does not drop off in density with height as sharply as Earth's. The composition of Olympus Mons is approximately 44% silicates, 17.5% iron oxides (which give the planet its red coloration) 7% aluminum, 6% magnesium, 6% calcium, and particularly high proportions of sulfur oxide with 7%. These results point to the surface being largely composed of basalts and other mafic rocks, which would have erupted as low viscosity lava flows
Mount Olympus (Utah) Mount Olympus (Utah) Mount Olympus in the U.S. state of Utah is one of the most prominent and recognizable mountains viewable from practically every location in the Salt Lake Valley. Mount Olympus is not the tallest peak along the Wasatch Front, but its unusual form and location make it a popular hiking destination for locals. The mountain is situated immediately east of the center of the Salt Lake Valley (due east from Murray and Taylorsville). Distinctive features of the mountain are its twin peaks and other outcroppings, the highest of which is called "Summit Peak" and which towers above the