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Table T1. Classification for consolidated volcaniclastic rock. (See table notes.)

Grain size (mm) Nongenetic nomenclature Genetic nomenclature
<1/16 Volcaniclastic mudstone Fine hyaloclastite
1/16–2 Volcaniclastic sandstone Hyaloclastite sandstone
2–4 Volcaniclastic conglomerate/
Volcaniclastic breccia
Granular hyaloclastite
4–64 Hyaloclastite breccia
>64

Notes: Modified from Fisher (1961). Genetic nomenclature was used only for hyaloclastics at Site U1348.

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