Evolutional process of ultra-high temperature metamorphic terrane- a case study of the Napier Complex, East Antarctica

超高温变质地体演化过程——以东南极洲纳皮尔杂岩为例

• 批准号: 20540471
• 负责人: MOTOYOSHI Yoichi
• 金额: $ 2.41万
• 依托单位: National Institute of Polar Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20540471/
• 关键词: 超高温変成作用; ナピア岩体; 東南極; 変成履歴; 年代測定

Origin and evolutional process of ultra-high temperature metamorphic terrane were investigated petrologically and mineralogically on the Napier Complex, East Antarctica, as a case study. We examined petrographical features of those rocks and clarified possible existence of metamorphic pressure gradient within the complex based on the difference in reaction products, and mineral stability highly depends on the water activity. Geochronological investigations revealed post-UHT events due to deformation and hydration processes.

以南极东部纳皮尔杂岩为例，研究了超高温变质岩的成因和演化过程。研究了这些岩石的岩石学特征，根据反应产物的差异，明确了杂岩内可能存在变质压力梯度，矿物稳定性高度依赖于水活度。地质年代学调查揭示了uht后由于变形和水化过程而发生的事件。

项目成果

東南極ナピア岩体西部における始生代大陸地殻の痕跡の対比

东南极洲纳皮尔杂岩西部太古宙大陆地壳痕迹对比

• 发表时间: 2010
• 作者: R.Nakada;Y.Takahashi;G.Zheng;Y.Yamamoto;H.Shimizu;堀江憲路・外田智千・廣井美邦・本吉洋一・白石和行
• 通讯作者: 堀江憲路・外田智千・廣井美邦・本吉洋一・白石和行

Pre-metamorphic carbon, oxygen and strontium isotope signature of high-grade marbles from the Lützow-Holm Complex, East Antarctica: apparent age constraints of carbonate deposition

• DOI: 10.1144/sp308.7
• 发表时间: 2008
• 作者: M. Satish‐Kumar;T. Miyamoto;J. Hermann;H. Kagami;Y. Osanai;Y. Motoyoshi

Sapphirine+quartz association in garnet : Implication for ultrahigh-temperature metamorphism in Rundvagshetta, Lutzow-Holm Complex, East Antarctica.

石榴石中的蓝宝石石英组合：对南极洲东部 Lutzow-Holm 杂岩 Rundvagshetta 超高温变质作用的影响。

• 发表时间: 2008
• 期刊: Geological Society of London Special Publications(eds.by Satish-Kumar M., 本吉洋一, Osanai Y., Hiroi Y., Shiraishi K.) (In : Geodynamic evolution of East Antarctica : a Key to the East-West Gondwana Connection) 308
• 作者: Yoshimura Y.;Motoyoshi Y.;Miyamoto T.
• 通讯作者: Miyamoto T.

Contrasting Archaean crustal records in western part of the Napier Complex, East Antarctica.

对比东南极洲纳皮尔杂岩西部的太古宙地壳记录。

• 发表时间: 2010
• 作者: Horie K.;Hokada T.;Hiroi Y.;Motoyoshi Y.;Shiraishi K.
• 通讯作者: Shiraishi K.

Carbon isotopic composition of graphite from Skallevikhalsen, Lutzow-Holm Complex, East Antarctica

南极洲东部 Lutzow-Holm 复合体 Skallevikhalsen 石墨的碳同位素组成

• 发表时间: 2009
• 作者: So;H.;Satish-Kumar;M.;Motoyoshi;Y.
• 通讯作者: Y.