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Masumizuhara Pyroclastic Flow Deposit Yamamoto, 2017

Invalid synonym: Misen Pyroclastic Flow Deposit, Odori Pyroclastic Flow Deposit

• Type locality: Kanayadani, Hoki city, Saihaku county, Tottori prefecture
• Volcanic rocks
• middle Pleistocene (28.5 - 28.2 ka cal yBP, ¹⁴C)

• Sedimentary facies: Pyroclastic flow deposit
• Lithofacies: Biotite-bearing orthopyroxene-hornblende dacite
• Lithofacies: Block-and-ash flow deposit
• Sedimentary structures: Unclear lamination, Reversed graded bedding

• Source: Misen Lava Dome
• Eruptive volume: 0.73 km³ DRE
• Thickness: ca. 20 - 50 m
• Upper limit: Unconformity (Volcanic fan 3 deposit)
• Lower limit: Conformity? (Eolian deposit intercalating AT tephra)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: 250 m - 1,709 m above sea level of western slope, Mount Daisen, Tottori pref.; 240 m - 950 m above sea level of SW slope, Mount Daisen, Tottori pref.; Mount Misen of Mount Daisen, Tottori pref.; Kanayadani, Hoki city, Saihaku county, Tottori pref.

• Yamamoto (2017) Bull. Geol. Surv. Japan, vol.68, no.1, pp.1-16 DOI