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Marland Pratt Billings (March 11, 1902 – October 9, 1996) was an American structural geologist who was considered one of the greatest authorities on North American geology. Billings was Professor of Geology at Harvard University for almost his entire career, having joined the faculty in 1930 and retired to ''emeritus'' status in 1972. He also taught for a brief time at Bryn Mawr College. ==Biography== Billings was educated at Roxbury Latin School. He received his A.B. (1923), his A.M. (1925), and his Ph.D. (1927) from Harvard University. In the 1950s, Billings studied the geology exposed by some of the bedrock tunnels being constructed in the Boston area by the Metropolitan District Commission for water supply and drainage disposal. He also investigated the geology of many parts of the world, including Iceland, Japan, and Australia. Marland was married to Katharine Fowler-Billings an accomplished naturalist and geologist. Marland Billings died Wednesday, October 9, 1996, in Peterborough, New Hampshire. He was 94. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Marland P. Billings」の詳細全文を読む スポンサード リンク
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