Isabelle Chambefort
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View article: Quantification of geothermal carbon dioxide fluxes using radiocarbon
Quantification of geothermal carbon dioxide fluxes using radiocarbon Open
View article: Seismic imaging of mid-crustal heterogeneity beneath geothermal systems, central Taupō Volcanic Zone, New Zealand
Seismic imaging of mid-crustal heterogeneity beneath geothermal systems, central Taupō Volcanic Zone, New Zealand Open
View article: Seismic imaging of mid-crustal heterogeneity beneath geothermal systems, central Taupo Volcanic Zone, New Zealand
Seismic imaging of mid-crustal heterogeneity beneath geothermal systems, central Taupo Volcanic Zone, New Zealand Open
The Taupo Volcanic Zone (TVZ) in New Zealand is a region of highly pro- ductive Quaternary volcanism and very large hydrothermal heat flux. Here we investigate the upper- and mid-crustal seismic velocity structure of a region within the ce…
View article: Natural state geothermal reservoir modelling: Mineralogical and geochemical evolution perspective
Natural state geothermal reservoir modelling: Mineralogical and geochemical evolution perspective Open
Reactive transport modelling plays a crucial role in unravelling the dynamics of geothermal reservoirs as they evolve. By utilising these models, we gain a deeper understanding of the temporal progression of mineral alteration and its infl…
View article: Impact of crystallinity evolution on volatile phase transport in hydrous magmatic intrusions during the magmatic-hydrothermal transition
Impact of crystallinity evolution on volatile phase transport in hydrous magmatic intrusions during the magmatic-hydrothermal transition Open
Exploiting high-enthalpy geothermal systems is an important component of expanding low-carbon electricity generation in volcanically active regions. One possibility to enhance power production is harnessing supercritical geothermal resourc…
View article: Chemical vectoring in continental geothermal systems: Composition of altered rocks and illite as guides to magmatic degassing
Chemical vectoring in continental geothermal systems: Composition of altered rocks and illite as guides to magmatic degassing Open
The Taupō Volcanic Zone, New Zealand, is one of the most voluminous volcanic regions on Earth. Over the last 1.8 Myr, bimodal volcanism in this rifted-arc setting has been dominated by voluminous rhyolite ignimbrite eruptions (>6000 km3 cu…
View article: Gabbroic insights into mafic magmatism in the Taupō Volcanic Zone (TVZ), New Zealand
Gabbroic insights into mafic magmatism in the Taupō Volcanic Zone (TVZ), New Zealand Open
View article: Variability in Surface Co2 Flux: Implication for Monitoring Surface Emission from Geothermal Fields
Variability in Surface Co2 Flux: Implication for Monitoring Surface Emission from Geothermal Fields Open
View article: Tracking Magma‐Crust‐Fluid Interactions at High Temporal Resolution: Oxygen Isotopes in Young Silicic Magmas of the Taupō Volcanic Zone
Tracking Magma‐Crust‐Fluid Interactions at High Temporal Resolution: Oxygen Isotopes in Young Silicic Magmas of the Taupō Volcanic Zone Open
Oxygen isotopes are useful for tracing interactions between magmas, crustal rocks and surface‐derived waters. We use them here to consider links between voluminous silicic magmatism and large‐scale hydrothermal circulation in New Zealand's…
View article: Understanding caldera degassing from a detailed investigation at Lake Rotoiti, Okataina Volcanic Centre, New Zealand
Understanding caldera degassing from a detailed investigation at Lake Rotoiti, Okataina Volcanic Centre, New Zealand Open
Volcanic lakes in large silicic caldera volcanoes are an important source of CO2 emissions. However, quantifying CO2 output is challenging due to the lack of observed historical CO2 flux records and the large size of the volcanic and hydro…
View article: A sulfur and halogen budget for the large magmatic system beneath Taupō volcano
A sulfur and halogen budget for the large magmatic system beneath Taupō volcano Open
The transport and degassing pathways of volatiles through large silicic magmatic systems are central to understanding geothermal fluid compositions, ore deposit genesis, and volcanic eruption dynamics and impacts. Here, we document sulfur …
View article: Understanding Sources and Modification of Primary Magmatic Volatiles in the Taupo Volcanic Zone: Evidence from Helium and Oxygen Isotopes
Understanding Sources and Modification of Primary Magmatic Volatiles in the Taupo Volcanic Zone: Evidence from Helium and Oxygen Isotopes Open
View article: Experimental Studies of Supercritical Fluid-Rock Interactions Geothermal: The Next Generation
Experimental Studies of Supercritical Fluid-Rock Interactions Geothermal: The Next Generation Open
View article: Rare plutonic xenoliths from a monogenetic basalt highlight magmatic crustal roots in the Taupō Volcanic Zone, New Zealand.
Rare plutonic xenoliths from a monogenetic basalt highlight magmatic crustal roots in the Taupō Volcanic Zone, New Zealand. Open
View article: Sulfur in New Zealand geothermal systems : insights from stable isotope and trace element analyses of anhydrite from Rotokawa and Ngatamariki geothermal fields.
Sulfur in New Zealand geothermal systems : insights from stable isotope and trace element analyses of anhydrite from Rotokawa and Ngatamariki geothermal fields. Open
Anhydrite major and trace element analyses
View article: Sulfur in New Zealand geothermal systems : insights from stable isotope and trace element analyses of anhydrite from Rotokawa and Ngatamariki geothermal fields.
Sulfur in New Zealand geothermal systems : insights from stable isotope and trace element analyses of anhydrite from Rotokawa and Ngatamariki geothermal fields. Open
Anhydrite major and trace element analyses
View article: The Mesozoic terrane boundary beneath the Taupo Volcanic Zone, New Zealand, and potential controls on geothermal system characteristics
The Mesozoic terrane boundary beneath the Taupo Volcanic Zone, New Zealand, and potential controls on geothermal system characteristics Open
Full U-Pb detrital zircon age data collected on SHRIMP-RG at Australia National University and LA-ICP-MS at Otago University for manuscript 'The Mesozoic terrane boundary beneath the Taupo Volcanic Zone, New Zealand, and potential controls…
View article: The Mesozoic terrane boundary beneath the Taupo Volcanic Zone, New Zealand, and potential controls on geothermal system characteristics
The Mesozoic terrane boundary beneath the Taupo Volcanic Zone, New Zealand, and potential controls on geothermal system characteristics Open
Full U-Pb detrital zircon age data collected on SHRIMP-RG at Australia National University and LA-ICP-MS at Otago University for manuscript 'The Mesozoic terrane boundary beneath the Taupo Volcanic Zone, New Zealand, and potential controls…
View article: Interaction between ferruginous clay sediment and an iron-reducing hyperthermophilic Pyrobaculum sp. in a terrestrial hot spring
Interaction between ferruginous clay sediment and an iron-reducing hyperthermophilic Pyrobaculum sp. in a terrestrial hot spring Open
Green-coloured sediments in low-temperature geothermal surface features are typically indicative of photosynthetic activity. A near-boiling (89-93°C), alkali-chloride spring in the Taupō Volcanic Zone, New Zealand, was observed to have dar…
View article: Controls on hydrothermal fluid flow in caldera-hosted settings: Evidence from Lake City caldera, USA
Controls on hydrothermal fluid flow in caldera-hosted settings: Evidence from Lake City caldera, USA Open
Silicic caldera volcanoes are often associated with hydrothermal systems economically important for electricity generation and localization of ore deposits. Despite their potential importance, the poor exposure that is typical in caldera s…
View article: Magmatic volatile distribution as recorded by rhyolitic melt inclusions in the Taupo Volcanic Zone, New Zealand
Magmatic volatile distribution as recorded by rhyolitic melt inclusions in the Taupo Volcanic Zone, New Zealand Open
The central Taupo Volcanic Zone (TVZ) is an actively rifting continental arc and is well known for its exceptionally high rate of rhyolitic magma generation and frequent caldera-forming eruptions. Two end-member types of rhyolites (R1 and …