北陸地方における火山灰堆積物(予報)

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  • A Preliminary Study of Aeolian Tephra Deposits in Hokuriku District, Central Japan

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The Pleistocene volcanic ash deposits are widely distributed on the middle terraces along the coast of Hokuriku.Okutango districts. From the petrographic simi1arity and the distribution of the deposits,it is thought to have been supplied by the eruption of Daisen volcano. probably correlative with the “Middle Loam" (30200±3500yr B. P).

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