(Table T3) Recalculated petrographic parameters of volcanic ash from ODP Leg 198 and Leg 126 sites@en
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Sediment depth is given in mbsf. Vesiculated = Lvvsv + Lvvmv + Lvvhv + Lvvw; Shards = Lvvp + Lvvy + Lvvu; Blocky = Lvv; Lvv = blocky nonvesicular glass, Lvvsv = slightly vesiculated glass, Lvvmv = moderately vesiculated glass, Lvvhv = highly vesiculated glass, Lvvb = complex bubble wall glass, Lvvy = Y-shaped bubble wall glass, Lvvu = U-shaped bubble wall glass, Lvvw = woody pumice, Lvvp = platy/flat shard.
沉积物深度以海底以下米（meters below seafloor，mbsf）为计量单位。泡状玻璃类别由Lvvsv、Lvvmv、Lvvhv及Lvvw四类组成；玻璃碎屑类别由Lvvp、Lvvy及Lvvu三类组成；块状玻璃类别仅包含Lvv。各缩写的具体定义如下： - Lvv：块状无泡状玻璃（blocky nonvesicular glass） - Lvvsv：轻微泡状玻璃（slightly vesiculated glass） - Lvvmv：中等泡状玻璃（moderately vesiculated glass） - Lvvhv：高度泡状玻璃（highly vesiculated glass） - Lvvb：复杂气泡壁玻璃（complex bubble wall glass） - Lvvy：Y形气泡壁玻璃（Y-shaped bubble wall glass） - Lvvu：U形气泡壁玻璃（U-shaped bubble wall glass） - Lvvw：木质浮石（woody pumice） - Lvvp：片状/扁平玻璃碎屑（platy/flat shard）
