Splet03. mar. 2011 · As a result, featured in remarkable detail in the full resolution mosaic, the smooth, dark, lunar maria (actually lava-flooded impact basins), and rugged highlands, are well-known to earthbound skygazers. To find your favorite mare or large crater, just slide your cursor over the picture. Splet30. apr. 2010 · There are two notable features on the far side of the moon, Mare Orientale and the Aitkin Basin. Orientale has a distinctive bull’s eye appearance, which lends strong evidence to its asteroid origin. Its inner ring is 300 km in diameter while its outer ring is 900 km in diameter.

Lunar Maria: Volcanic Basins on the Moon - Earth How

Splet01. feb. 1998 · The floor of this basin shows iron and titanium values which are weakly correlated and largely range from 7 to 14 wt % FeO and from 0.5 to 1.5 wt % TiO 2. This composition is consistent with an approximate 1:1 mixture of lower crustal material like that found elsewhere on the Moon and mantle rock containing 10–16 wt % FeO and <0.1 wt % … SpletThe term lunar maria means ‘sea on the Moon’. Mare (pronounced MAHR-ay) is the Latin word for sea, the plural of which is maria. Early humans mistook these dark plains to be real seas, which is where the name comes from. However, we know today that these dark gray zones are formed from iron-rich basalts produced in volcanic eruptions. blackthorn cottage blog

Moon - Wikipedia

Splet20. nov. 2015 · On the Moon, formed by contraction related to subsidence of lava flow sequences in lunar maria (basins); on the high volcanic plains of Mars, Venus, and Mercury, related more to internal tectonic forces caused either by gravitational loading of large volcanic constructs or by coupled mantle-crust dynamics including mantle plumes. Splet31. jul. 2006 · Mare Serenitatis is one of the lunar maria, that are vast lava plains on the lunar surface. It formed between 3.9 and 3.8 thousand million years ago, a period in which the Moon was heavily bombarded by asteroids and the major impact basins on … SpletFeatures larger than 300 kilometers in diameter are termed impact basins. More than 40 such basins have been identified on the Moon. These basins control much of the Moon's … fox book reviews