@article{oai:nipr.repo.nii.ac.jp:00002753,
 author = {イシカワ, マサヒロ and モトヨシ, ヨウイチ and / カワサキ, トシスケ and ISHIKAWA, Masahiro and MOTOYOSHI, Yoichi and FRASER, Geoffrey L. and KAWASAKI, Toshisuke},
 journal = {Proceedings of the NIPR Symposium on Antarctic Geosciences},
 month = {Sep},
 note = {P(論文), The highest grade part of the Lutzow-Holm Complex crops out on the southern coastline of Lutzow-Holm Bay in East Antarctica. Orthopyroxene+sillimanite±quartz assemblages reveal high-T, high-P conditions for peak metamorphism of granulites of Rundvagshetta. Moreover, their fabrics imply regional ductile deformation during peak metamorphism, which was characterized by the formation of a WNW-ESE subhorizontal mineral lineation and the development of high-strain structures such as isoclinal buckling folds (F_n) and boudinage (B_n and B_m). The high-strain deformation was followed by the development of symplectic intergrowths of cordierite±sapphirine±spinel around sillimanite and orthopyroxene, and symplectic intergrowths of orthopyroxene+cordierite±sapphirine around garnets in response to decompression. There is little symplectic intergrowth strained intensely, whereas strained cordierite is locally observed. It implies that the regional high-strain deformation had ceased before the time of the reactions orthopyroxene+sillimanite+quartz=cordierite, orthopyroxene+sillimanite=cordierite+sapphirine±spinel, garnet=orthopyroxene+cordierite+sapphirine and garnet+quartz=orthopyroxene+cordierite. In contrast to the peak metamorphic high-strain deformation, the post-peak metamorphic structural evolution was characterized by low-strain and localized deformations such as F_<n+1> gentle folding, emplacement of clinopyroxene pegmatites and basic dykes, and local shearing in the N-S compressional and E-W extensional field. In response to subsequent N-S compression, ductile thrusting had taken place. The last structural event at Rundvagshetta was represented by the emplacement of felsic pegmatites.},
 pages = {69--89},
 title = {STRUCTURAL EVOLUTION OF RUNDVAGSHETTA REGION, LUTZOW-HOLM BAY, EAST ANTARCTICA},
 volume = {7},
 year = {1994}
}