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静岡県-愛知県地域における爆破地震動の観測 : 春野-作手測線

By 爆破地震研究グループ


1985年11月,静岡県春野町と愛知県作手村を結ぶ全長約53kmの測線で,人工地震による地下構造探査が行われた.測線上の爆破点は合計6箇所で,その薬量は300kgから500kgである.76箇所の臨時観測点で得られた記録は良好で,精密な地下構造推定が可能な精度良い資料を得ることができた.この測線は,中央構造線と赤石構造線を横切っている.レコードセクションを見ただけでも,これらの構造線が地下構造の境目をなしていることがうかがえる.Seismic refraction experiments were conducted in November, 1985 along a profile in central Japan from Haruno, Shizuoka Prefecture to Tsukude, Aichi Prefecture. Six shot points and 76 temporary observation sites were arranged on this profile about 53 km long. This profile crosses the Median Tectonic Line and Akaishi Tectonic Line. Very good records were obtained for all shots and they clearly show structural changes across these two tectonic lines. On record sections of some shots, clear reflected waves from a deep boundary in the crust can be recognized

Topics: 453
Publisher: 地震研究所
Year: 1990
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Provided by: UT Repository
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