Results 1 to 10 of about 109 (105)

Growth at the limits: comparing trace metal limitation of a freshwater cyanobacterium (Dolichospermum lemmermannii) and a freshwater diatom (Fragilaria crotonensis) [PDF]

open access: yesScientific Reports, 2022
Freshwater phytoplankton blooms are increasing in prevalence and there are conflicting views on whether trace metals limit growth of key species and thus bloom formation.
Markus Dengg   +6 more
doaj   +2 more sources

Stretching, Shaking, Inflating: Volcanic-Tectonic Interactions at a Rifting Silicic Caldera

open access: yesFrontiers in Earth Science, 2022
Silicic caldera volcanoes are frequently situated in regions of tectonic extension, such as continental rifts, and are subject to periods of unrest and/or eruption that can be triggered by the interplay between magmatic and tectonic processes.
James D. Muirhead   +18 more
doaj   +1 more source

Uniform “water” content in quartz phenocrysts from silicic pyroclastic fallout deposits – implications on pre-eruptive conditions [PDF]

open access: yesEuropean Journal of Mineralogy, 2021
Structural hydroxyl content of volcanic quartz phenocrysts was investigated with unpolarized Fourier-transform infrared spectroscopy. The phenocrysts originated from five pyroclastic fallout deposits from the Bükk Foreland Volcanic Area (BFVA), Hungary ...
M. Hencz   +9 more
doaj   +1 more source

Volcanic Unrest at Taupō Volcano in 2019: Causes, Mechanisms and Implications

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Taupō volcano, New Zealand, is a large caldera volcano that has been highly active through the Holocene. It most recently erupted ∼1,800 years ago but there have been multiple periods of historic volcanic unrest.
Finnigan Illsley‐Kemp   +9 more
doaj   +1 more source

The 2001 Taupō Fault Belt Seismicity as Evidence of Magma‐Tectonic Interaction at Taupō Volcano

open access: yesGeochemistry, Geophysics, Geosystems, 2022
The Taupō Volcanic Zone (TVZ) is the southern extent of the Tonga‐Kermadec volcanic arc and encompasses the Taupō Rift, with the two structures accommodating extension through the central North Island of New Zealand via magmatic and tectonic processes,
R. F. D. McGregor   +2 more
doaj   +1 more source

Resolving the 1886 White Terraces riddle in the Taupō Volcanic Zone

open access: yesFrontiers in Earth Science, 2023
Among the Seven Wonders of the Ancient World, only the Great Pyramid of Giza survives. Yet there is another, older than the seven, that was found and then lost again in the 19th century and once more located by the research herein: the White Terraces ...
A. Rex Bunn
doaj   +1 more source

TephraNZ: a major- and trace-element reference dataset for glass-shard analyses from prominent Quaternary rhyolitic tephras in New Zealand and implications for correlation [PDF]

open access: yesGeochronology, 2021
Although analyses of tephra-derived glass shards have been undertaken in New Zealand for nearly four decades (pioneered by Paul Froggatt), our study is the first to systematically develop a formal, comprehensive, open-access reference dataset of glass ...
J. L. Hopkins   +7 more
doaj   +1 more source

Advances in New Zealand's Tephrochronostratigraphy Using Marine Drill Sites: The Neogene

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Three volcanic arcs have been the source of New Zealand's volcanic activity since the Neogene: Northland arc, Coromandel Volcanic Zone (CVZ) and Taupō Volcanic Zone (TVZ).
K. Pank   +5 more
doaj   +1 more source

A Review of Critical Element Concentrations in High Enthalpy Geothermal Fluids in New Zealand

open access: yesResources, 2023
This review compiles publicly available datasets describing the chemical composition of geothermal fluids from eight wells in the Taupo Volcanic Zone (TVZ) and Ngāwhā, New Zealand.
Lucjan Sajkowski   +2 more
doaj   +1 more source

Modelling of flow through naturally fractured geothermal reservoirs, Taupō Volcanic Zone, New Zealand

open access: yesGeothermal Energy, 2023
Background Numerous fractures are observed in fractured geothermal reservoirs on borehole images in the Taupō Volcanic Zone (TVZ), Aotearoa New Zealand.
Warwick M. Kissling, Cécile Massiot
doaj   +1 more source

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