低圧高温型領家広域変成作用の変形差応力

• 長尾 宏行

  Department of Geosciences, Faculty of Science, Osaka City University

• 相川 信之

  Department of Geosciences, Faculty of Science, Osaka City University

書誌事項

タイトル別名

• Differential stress of the low P/T type Ryoke regional metamorphism, in central Kinki, Japan.

抄録

Studied is metachert, which has been subjected to the low P/T type Ryoke regional metamorphism, in central Kinki, Japan. Deformed radiolarian remains included in metachert indicate that the deformation during the metamorphism seems to be uniaxial and the maximum extensional direction is parallel to the principal lineation, as already demonstrated in the Sanbagawa metamorphic terrane, forming “a pair” with the Ryoke metamorphic terrane. The grain size paleopiezometer (Mercier et al., 1977) and the dislocation density paleopiezometer (McCormick, 1977) of quartz give about 75 MPa and 40 MPa of the flow stress in the low metamorphic grade zone and about 10 MPa and 8 MPa in the high grade zone, respectively. The natures of the paired metamorphic belts seem to be very similar in such rheological aspects as the apparent uniaxial strain of fossils and the magnitude of differential stress.

収録刊行物

• 岩石鉱物鉱床学会誌

  岩石鉱物鉱床学会誌 78 (10), 363-375, 1983

  一般社団法人　日本鉱物科学会

詳細情報

• CRID: 1390001206216533760
• NII論文ID: 130003884479
• DOI: 10.2465/ganko1941.78.363
• ISSN: 18830765
• ISSN: 00214825
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可