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 (Tasmania) Mount Olympus (Tasmania) Mount Olympus is a mountain in the Cradle Mountain-Lake St Clair National Park in Tasmania, Australia. It is the 24th highest mountain in Tasmania at above sea level and is situated about South-East of Mount Gould and about west of Lake St. Clair. In 1835 George Frankland climbed the mountain and named it Mount Olympus. Mount Olympus was painted by the Australian landscape painter, William Charles Piguenit. It was purchased by the Art Gallery of New South Wales in 1875 and was the Gallery's first oil painting acquisition, "the first Australian work purchased by public subscription", and