Textural heterogeneities in pumices from the climactic eruption of Mount Pinatubo, 15 June 1991, and implications for magma ascent dynamics
The climactic event of Mount Pinatubo represents one of the most thoroughly studied
eruptions of the century and has provided important insights into the dynamics of explosive …
eruptions of the century and has provided important insights into the dynamics of explosive …
Linking experimental and natural vesicle textures in Vesuvius 79AD white pumice
Vesicle populations in volcanic pumice provide a partial record of shallow magma ascent
and degassing. Here we compare pumice textures from the well-characterized 79AD …
and degassing. Here we compare pumice textures from the well-characterized 79AD …
Role of conduit shear on ascent of the crystal-rich magma feeding the 800-year-bp Plinian eruption of Quilotoa Volcano (Ecuador)
M Rosi, P Landi, M Polacci, A Di Muro… - Bulletin of …, 2004 - Springer
We have characterized pumice products belonging to the climactic phase of the 800-year-bp
Quilotoa eruption. Bulk rock compositions, petrography, mineral, and glass chemistry and …
Quilotoa eruption. Bulk rock compositions, petrography, mineral, and glass chemistry and …
Structure and physical characteristics of pumice from the climactic eruption of Mount Mazama (Crater Lake), Oregon
C Klug, KV Cashman, C Bacon - Bulletin of Volcanology, 2002 - Springer
The vesicularity, permeability, and structure of pumice clasts provide insight into conditions
of vesiculation and fragmentation during Plinian fall and pyroclastic flow-producing phases …
of vesiculation and fragmentation during Plinian fall and pyroclastic flow-producing phases …
Fragmentation of magma during Plinian volcanic eruptions
JE Gardner, RME Thomas, C Jaupart, S Tait - Bulletin of Volcanology, 1996 - Springer
The ratio of the volume of vesicles (gas) to that of glass (liquid) in pumice clasts (VG/VL)
reflects the degassing and dynamic history experienced by a magma during an explosive …
reflects the degassing and dynamic history experienced by a magma during an explosive …
Pyroclast textural variation as an indicator of eruption column steadiness in andesitic Plinian eruptions at Mt. Ruapehu
Between 27 and 11 cal. ka BP, a transition is observed in Plinian eruptions at Mt. Ruapehu,
indicating evolution from non-collapsing (steady and oscillatory) eruption columns to …
indicating evolution from non-collapsing (steady and oscillatory) eruption columns to …
On the vesicularity of pumice
We develop a physical framework for the evolution of vesicular magma fragments after their
formation by fragmentation in explosive eruptions. These fragments are carried by a …
formation by fragmentation in explosive eruptions. These fragments are carried by a …
Degassing and microlite crystallization during pre-climactic events of the 1991 eruption of Mt. Pinatubo, Philippines
JE Hammer, KV Cashman, RP Hoblitt… - Bulletin of Volcanology, 1999 - Springer
Dacite tephras produced by the 1991 pre-climactic eruptive sequence at Mt. Pinatubo
display extreme heterogeneity in vesicularity, ranging in clast density from 700 to 2580 kg m …
display extreme heterogeneity in vesicularity, ranging in clast density from 700 to 2580 kg m …
Magmatic processes revealed by textural and compositional trends in Merapi dome lavas
Syn-eruptive degassing of volcanoes may lead to syn-eruptive crystallization of groundmass
phases. We have investigated this process using textural and compositional analysis of …
phases. We have investigated this process using textural and compositional analysis of …
Highly vesicular pumice generated by buoyant detachment of magma in subaqueous volcanism
Many submarine caldera volcanoes are blanketed with deposits of highly vesicular pumice,
typically attributed to vigorous explosive activity,,,. However, it is challenging to relate …
typically attributed to vigorous explosive activity,,,. However, it is challenging to relate …