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Hadley–Apennine
Hadley–Apennine is a region on the near side of Earth's Moon that served as the landing site for the American Apollo 15 mission, the fourth manned landing on the Moon and the first of the "J-missions", in July 1971.〔(【引用サイトリンク】url=http://www.lpi.usra.edu/lunar/missions/apollo/apollo_15/ )〕 The site is located on the eastern edge of Mare Imbrium on a lava plain known as Palus Putredinis. Hadley-Apennine is bordered by the Montes Apenninus (often referred to as 'Apennine Front'), a mountain range, and Hadley Rille, a meandering channel, on the east and west, respectively.〔(【引用サイトリンク】url=http://www.hq.nasa.gov/alsj/a15/a15ov.html )〕
Data obtained from the composition of soil samples collected on Apollo 15 show that most (about 90%) of the samples from the Apennine Front are brown-glass breccias, and approximately 60-70% obtained from the mare surface are basalt. Although the basalts seem to vary in their texture, their ages appear to be approximately the same. Most of the samples obtained on the Apennine Front are KREEP (potassium, rare earth elements, phosphorus) materials, anorthosites, recrystallized norite, or recrystallized breccia.
==Geography and geology==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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