Outputs (10)

Volatile budgets and evolution in porphyry-related magma systems, determined using apatite (2024)
Journal Article
Lormand, C., Humphreys, M. C., Colby, D. J., Coumans, J. P., Chelle-Michou, C., & Li, W. (2024). Volatile budgets and evolution in porphyry-related magma systems, determined using apatite. Lithos, 480-481, Article 107623. https://doi.org/10.1016/j.lithos.2024.107623

Volatile-bearing minerals, such as apatite, Ca5(PO4)3(OH,F,Cl), can record changes in dissolved magmatic volatile species during differentiation and, unlike melt inclusions, are sensitive to the presence of an exsolved fluid phase. Populations of apa... Read More about Volatile budgets and evolution in porphyry-related magma systems, determined using apatite.

Characterizing the evolution of mass flow properties and dynamics through analysis of seismic signals: insights from the 18 March 2007 Mt. Ruapehu lake-breakout lahar (2023)
Journal Article
Walsh, B., Lormand, C., Procter, J., & Williams-Jones, G. (2023). Characterizing the evolution of mass flow properties and dynamics through analysis of seismic signals: insights from the 18 March 2007 Mt. Ruapehu lake-breakout lahar. Natural Hazards and Earth System Sciences, 23(3), https://doi.org/10.5194/nhess-23-1029-2023

Monitoring for mass flows on volcanoes can be challenging due to the ever-changing landscape along the flow path, which can drastically transform the properties and dynamics of the flow. These changes to the flows require the need for detection strat... Read More about Characterizing the evolution of mass flow properties and dynamics through analysis of seismic signals: insights from the 18 March 2007 Mt. Ruapehu lake-breakout lahar.

Petrology of Koko Rift Basalts: Hawai‘i's most recent and atypical rejuvenation stage eruptive sequence (2022)
Journal Article
Garcia, M., Swanson, K., Lormand, C., & Norman, M. (2022). Petrology of Koko Rift Basalts: Hawai‘i's most recent and atypical rejuvenation stage eruptive sequence. Journal of Volcanology and Geothermal Research, 424, Article 107504. https://doi.org/10.1016/j.jvolgeores.2022.107504

Rejuvenated volcanism is a worldwide phenomena occurring on many volcanic oceanic islands in all of the major ocean basins (e.g., Samoa, Madeira, Mauritius). This plume-related volcanism follows the main edifice-building stage after a hiatus of varia... Read More about Petrology of Koko Rift Basalts: Hawai‘i's most recent and atypical rejuvenation stage eruptive sequence.

Shallow magmatic processes revealed by cryptic microantecrysts: a case study from the Taupo Volcanic Zone (2021)
Journal Article
Lormand, C., Zellmer, G., Sakamoto, N., Ubide, T., Kilgour, G., Yurimoto, H., …Moebis, A. (2021). Shallow magmatic processes revealed by cryptic microantecrysts: a case study from the Taupo Volcanic Zone. Contributions to Mineralogy and Petrology, 176, Article 97. https://doi.org/10.1007/s00410-021-01857-7

Arc magmas typically contain phenocrysts with complex zoning and diverse growth histories. Microlites highlight the same level of intracrystalline variations but require nanoscale resolution which is globally less available. The southern Taupo Volcan... Read More about Shallow magmatic processes revealed by cryptic microantecrysts: a case study from the Taupo Volcanic Zone.

Understanding magmatic processes and their timescales beneath the Tongariro Volcanic Centre through microanalytical investigations of the tephra record (2020)
Thesis
Lormand, C. (2020). Understanding magmatic processes and their timescales beneath the Tongariro Volcanic Centre through microanalytical investigations of the tephra record. (Thesis). [Awarding Organisation: Unknown]. Retrieved from https://durham-repository.worktribe.com/output/1617849

The Tongariro Volcanic Centre (TgVC) is a complex volcanic system located at the southern end of the Taupo Volcanic Zone in New Zealand, and has produced historical explosive eruptions of different eruptive styles. Its three ski fields and its iconic... Read More about Understanding magmatic processes and their timescales beneath the Tongariro Volcanic Centre through microanalytical investigations of the tephra record.

The 1974 West Flank Eruption of Mount Etna: A Data-Driven Model for a Low Elevation Effusive Event. (2020)
Journal Article
Lormand, C., Harris, A., Chevrel, M., Calvari, S., Gurioli, L., Favalli, M., …Nannipieri, L. (2020). The 1974 West Flank Eruption of Mount Etna: A Data-Driven Model for a Low Elevation Effusive Event. Frontiers in Earth Science, 8, Article 590411. https://doi.org/10.3389/feart.2020.590411

Low elevation flank eruptions represent highly hazardous events due to their location near, or in, communities. Their potentially high effusion rates can feed fast moving lava flows that enter populated areas with little time for warning or evacuatio... Read More about The 1974 West Flank Eruption of Mount Etna: A Data-Driven Model for a Low Elevation Effusive Event..

Beyond crystal mushes: evidence for uptake of high-T pyroxene antecrysts from mid- to upper crustal andesites into tephras from the Central Plateau, New Zealand (2020)
Journal Article
Zellmer, G., Iizuka, Y., Lormand, C., & Moebis, A. (2020). Beyond crystal mushes: evidence for uptake of high-T pyroxene antecrysts from mid- to upper crustal andesites into tephras from the Central Plateau, New Zealand. New Zealand Journal of Geology and Geophysics, 64(2-3), 147-152. https://doi.org/10.1080/00288306.2020.1848883

Slow Ascent of Unusually Hot Intermediate Magmas Triggering Strombolian to Sub-Plinian Eruptions (2020)
Journal Article
Lormand, C., Zellmer, G., Kilgour, G., Nemeth, K., Palmer, A., Sakamoto, N., …Moebis, A. (2020). Slow Ascent of Unusually Hot Intermediate Magmas Triggering Strombolian to Sub-Plinian Eruptions. Journal of Petrology, 61(10), https://doi.org/10.1093/petrology/egaa077

To assess whether magma ascent rates control the style of volcanic eruption, we have studied the petrography, geochemistry and size distribution of microlites of plagioclase and pyroxene from historical eruptions from Tongariro, Ruapehu and Ngauruhoe... Read More about Slow Ascent of Unusually Hot Intermediate Magmas Triggering Strombolian to Sub-Plinian Eruptions.

Weka Trainable Segmentation Plugin in ImageJ: A Semi-Automatic Tool Applied to Crystal Size Distributions of Microlites in Volcanic Rocks (2018)
Journal Article
Lormand, C., Zellmer, G., Nemeth, K., Kilgour, G., Mead, S., Palmer, A., …Moebis, A. (2018). Weka Trainable Segmentation Plugin in ImageJ: A Semi-Automatic Tool Applied to Crystal Size Distributions of Microlites in Volcanic Rocks. Microscopy and Microanalysis, 24(6), 667-675. https://doi.org/10.1017/s1431927618015428

Crystals within volcanic rocks record geochemical and textural signatures during magmatic evolution before eruption. Clues to this magmatic history can be examined using crystal size distribution (CSD) studies. The analysis of CSDs is a standard petr... Read More about Weka Trainable Segmentation Plugin in ImageJ: A Semi-Automatic Tool Applied to Crystal Size Distributions of Microlites in Volcanic Rocks.

UAV-based remote sensing surveys of lava flow fields: a case study from Etna’s 1974 channel-fed lava flows (2018)
Journal Article
Favalli, M., Fornaciai, A., Nannipieri, L., Harris, A., Calvari, S., & Lormand, C. (2018). UAV-based remote sensing surveys of lava flow fields: a case study from Etna’s 1974 channel-fed lava flows. Bulletin of Volcanology, 80, Article 29. https://doi.org/10.1007/s00445-018-1192-6

During an eruption, time scales of topographic change are fast and involve vertical and planimetric evolution of millimeters to meters as the event progresses. Repeat production of high spatial resolution terrain models of lava flow fields over time... Read More about UAV-based remote sensing surveys of lava flow fields: a case study from Etna’s 1974 channel-fed lava flows.