PHYS 2021 Study Guide - Quiz Guide: Solar Wind, Mariner 10, Impact Crater
Document Summary
Barely visible surface features, even with a large telescope. No signs of clouds, river, dust storms, or other aspects of weather. Less densely-packed craters than those on the moon, not as deep. Intercrater plains: cover 40% of the planet"s surface, oldest part of the planet"s surface. Smooth plains: lava filled depressions produced by large meteorite impacts, much younger than intercrater plains. Scarps: cliff on the surface that does not appear to be the result of volcanism , occured. After meteorite bombardment, formed when the crust cooled & shrank. Hollows:lighter colored depressions on the rim and center floor of an impact crater, small, shallow, irregular-shaped. Caloris basin: formed by impact of a large asteroid, lies in hot latitudes. Created weird terrain on the other side of the planet by seismic waves. Magnetic field (discovered by mariner 10) is weak, but strong enough to deflect solar wind. 60% of vol. /80% of mass in iron-rich core.
