直近一年間の累計
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ID 74540
タイトルヨミ
シコク チュウオウブ イノ チイキ ニオケル チチブタイ ホクタイ ノ ナノカワ ショウジョウ ダンソウ シュウヘン ノ チシツ コウゾウ
タイトル別表記
Geological structures around the Nanokawa thrust of the Northern Chichibu Terrain of the Ino Area, Central Shikoku
著者
村田, 明広 徳島大学総合科学部自然システム学科物質科学教室 徳島大学 教育研究者総覧 KAKEN研究者をさがす
犬房, 陽一 徳島大学総合科学部人間・自然環境研究科自然環境専攻
橋本, 陽介 大阪府立大学理学部物理科学科
前川, 寛和 大阪府立大学大学院理学系研究科物理科学教室
キーワード
Nanokawa thrust
geological structures
Sambagawa metamorphism
pumpellyite-actinolite facies
alkali amphibole
prehnite-pumpellyite facies
Shikoku
Northern Chichibu Terrain
資料タイプ
紀要論文
抄録
The Nanokawa thrust occurs in the Jurassic accretionary complexes of the Northern Chichibu Terrain in the Ino Area, Central Shikoku. Along the thrust,greenstones and pelitic semi-schists are thrust over chaotic formations,sandstones and greenstones. The strata of the hanging wall of the thrust dip gently and are slightly folded,whereas those of the footwall dip steeply to the north. Metamorphic minerals of the greenstones of the hanging wall and footwall of the Nanokawa thrust are examined. The greenstones of the hanging wall contain alkali amphibole, alkali pyroxene, stilpnomelane and pumpellyite, and have undergone the pumpellyite-actinolite facies metamorphism. On the other hand, those of the footwall contain prehnite and pumpellyite, and have undergone the prehnite-pumpellyite facies metamorphism. The Nanokawa thrust is a large overthrust, which has a different metamorphic grade between the hanging wall and footwall. The Nanokawa thrust, which runs to the north of Shirakidani limestone body in Central Shikoku, and to the north of the Torigatayama limestone body in Middle West Shikoku, is probably a southern boundary of the Jurassic accretionary deposits which have undergone the Sambagawa Metamorphism.
掲載誌名
徳島大学総合科学部自然科学研究 = Natural Science Research, The University of Tokushima
ISSN
0914-6385
cat書誌ID
AN10065859
22
開始ページ
13
終了ページ
27
並び順
13
発行日
2008
EDB ID
フルテキストファイル
言語
jpn
部局
理工学系