...This cycle applies not only to the past 200 million years, during which plate movement can be reconstructed from records on the ocean floor, but also to geological phenomena in the Paleozoic Era or earlier (200 million years ago or earlier). This idea has been repeatedly asserted since the 1960s by J. Tuzo Wilson (1908-93) of Canada, but its validity has only recently been widely recognized. At the Penrose Conference of the Geological Society of America held in January 1975, the name Wilson Cycle was proposed and adopted. ... From [Transform Fault]...A fault (diagram) that is generated when two plates slide sideways relative to each other along their boundary. It is a completely new concept that emerged from the ocean floor spreading theory, and was first proposed in 1965 by Canadian J. Tuzo Wilson (1908-93). Transform means replacing or converting one convergent or divergent plate boundary (corresponding to trench (T) and mid-ocean ridge (R), respectively) to another plate boundary. There are R-R, R-T, and T-T transform faults, but the R-R type, which connects ridges by shifting them, is the most common. *Some of the terminology that mentions "Wilson, JT" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このサイクルはプレートの運動状態が海底の記録から復元できる過去2億年間ばかりでなく,古生代またはそれ以前(2億年以前)の地質現象にもあてはまる。この考えはカナダのウィルソンJ.Tuzo Wilson(1908‐93)によって1960年代以来繰り返し主張されてきたが,その正当性は最近広く認められるに至った。そこで75年1月に開かれた全米地質学会GSAのペンローズ会議において,このサイクルをウィルソンサイクルとよぶことが提案され,採用された。… 【トランスフォーム断層】より…二つのプレートがその境界に沿って相互に横にずれ動く時に生成される断層(図)。海洋底拡大説の中からまったく新しく誕生した概念で,カナダのウィルソンJ.Tuzo Wilson(1908‐93)によって1965年にはじめて提案された。トランスフォームとは一つの収束型または発散型のプレート境界(それぞれ海溝(T)と中央海嶺(R)に対応する)から別のプレート境界へ置き換える,または変換するという意味で,R‐R型,R‐T型,T‐T型のトランスフォーム断層が存在するが,海嶺と海嶺をずらしてつなぐR‐R型が最も数が多い。… ※「Wilson,J.T.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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