Antarctica is one of the old continental crust, and its oldest history started at 3.8 billion years ago. Japanese Antarctic Research Expedition has investigated the geological evolution of crustal rocks exposed along the coastal region longitudes between 20-50°E. High-grade metamorphic rocks and related igneous rocks comprise this region, and its geologic history has been studied in detail by U-Th-Pb chronology. This presentation includes the following topics: (1) Antarctica as a part of Gondwana supercontinent, (2) Earth's early history and ultrahigh-temperature deep crustal processes recorded in the Napier Complex, and (3) recent progress of the combined U-Th-Pb chronology with REE geochemical studies.
第18回名古屋大学年代測定総合研究センターシンポジウム平成17(2005)年度報告 Proceedings of the 18th symposiumon on Chronological Studies at the Nagoya University Center for Chronological Research\in 2005 日時:平成18 (2006)年1月17日(火)､18日(水) 会場:名古屋大学シンポジオン Date:Januaryl7th and 18th, 2006 Venue:Nagoya Uhiversity Symposion Hall
名古屋大学加速器質量分析計業績報告書 17 22-27, 2006-03