Hakone-Tokyo Tephra in the Southern Part of Miura Peninsula, Kanagawa, Japan

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  • 三浦半島南部の箱根東京テフラ
  • ミウラ ハントウ ナンブ ノ ハコネ トウキョウ テフラ

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Abstract

Hakone-Tokyo tephra consists of air fall pumice deposits named Hk-TP and pumice flow deposits. The lowest unit of the Hk-TP is usually thicker on the Miura Peninsula and its distribution axis may be more towards the east. On the contrary, the upper one of two coarse-grained pumice fall units of Hk-TP is relatively thinner and its distribution range may be more northward. The total thickness of Hk-TP may be thicker than previous estimates. Massive pumice flow deposits, named Hk-T(pfl), are newly found at two outcrops in the Miura Peninsula, suggestive of a wider distribution of the pumice flow.

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