Results 41 to 50 of about 109 (105)

Vertical Seismic Profiling and Piggyback Experiment for Seismic Characterization of Geothermal Reservoirs: Case Study From Southern Tuscany, Italy

Geophysical Prospecting, Volume 74, Issue 6, July 2026.
ABSTRACT We present an approach for seismic characterization of a deep supercritical geothermal reservoir in the direct vicinity of an exploration well. Our investigation area is the Larderello geothermal field in Tuscany (Italy) where we focus on the K‐horizon, which is represented by a strong reflector at a depth of 3–6 km marking the geothermal ...
Lena Bräunig, Stefan Buske
wiley   +1 more source

Loess Studies in Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway, David J. Lowe, Bradley J. Pillans, Peter C. Almond, Alan S. Palmer   +4 more
wiley   +1 more source

Vertical and Spatial Geochemical Variations of Nishinoshima Volcaniclastic Deposits, Japan, During Episode 4

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Nishinoshima is a volcanic island in the Ogasawara Arc that has exhibited intermittent activity since 2013, including four major eruptive episodes: 2013–2015 (Episode 1), 2017 (Episode 2), 2018 (Episode 3), and 2019–2020 (Episode 4). Previous studies reported a change in eruption style—from a Strombolian eruption with lava flows (Episode 1 to the early
Erika Tanaka, Kenta Yoshida, Tomoki Sato, Yoshiro Nishio, Yoshihiko Tamura   +4 more
wiley   +1 more source

The Occurrence and Morphology of Naturally Occurring Respirable Mordenite Mineral Fibres in New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Mordenite is a naturally occurring zeolite mineral that is the seventh most common zeolite mineral globally, forming at low temperatures (≥100°C) in hydrothermal systems. In New Zealand, extensive deposits of mordenite are commonly associated with areas of hydrothermal alteration, particularly in the Coromandel and Taupo Volcanic Zones.
Ayrton R. Hamilton, Martin S. Brook, Anushka Elangasinghe, Debra Chappell, Janki P. Patel, Satendra Kumar, Rod Martin   +6 more
wiley   +1 more source

Earthquake Rate Variability in the Auckland Volcanic Field Within a Long‐Duration Self‐Consistent Earthquake Catalogue

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Eruptions in the Auckland Volcanic Field in Aotearoa New Zealand have not occurred since seismic monitoring began in Aotearoa New Zealand, but it is generally presumed that future eruptions from the Auckland Volcanic Field will be preceded by elevated rates of seismicity.
S. O’Hagan, C. J. Chamberlain, J. Townend, K. van Wijk, J. L. Hopkins, M. Soulsby   +5 more
wiley   +1 more source

Multidisciplinary Investigation of Healy Submarine Volcano (Kermadec Arc, New Zealand) Using AUV and Submersible Data: Structural Control on Magmatic and Hydrothermal Processes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract We present a comprehensive multidisciplinary investigation of the Healy submarine volcano in the southern Kermadec arc, northeast of New Zealand. We show the first results of sidescan‐sonar data collected at a submarine arc volcano by an Autonomous Underwater Vehicle (AUV).
A. Bagnasco, F. Caratori Tontini, C. E. J. de Ronde, S. L. Walker, L. Cocchi, A. Ghirotto, E. Armadillo   +6 more
wiley   +1 more source

A new paleomagnetic constraint on the duration of a twin caldera-forming eruption sequence: a potential solution to an enduring problem in decoding >VEI 7 eruption timescales

Earth, Planets and Space
New paleomagnetic results from the twin caldera-forming Mamaku–Ohakuri eruption deposits in the Taupō Volcanic Zone of New Zealand show that the entire pyroclastic sequence accumulated within a geomagnetic excursion event.
Darren M. Gravley, Takeshi Hasegawa, Nobutatsu Mochizuki, Chie Kusu, Makoto Okada   +4 more
doaj   +1 more source

Thermophilic methane oxidation is widespread in Aotearoa-New Zealand geothermal fields. [PDF]

Front Microbiol, 2023
Houghton KM, Carere CR, Stott MB, McDonald IR.   +3 more
europepmc   +1 more source

Bacterial and archaeal community distributions and cosmopolitanism across physicochemically diverse hot springs. [PDF]

ISME Commun, 2023
Sriaporn C, Campbell KA, Van Kranendonk MJ, Handley KM.   +3 more
europepmc   +1 more source

The Chthonomonas calidirosea Genome Is Highly Conserved across Geographic Locations and Distinct Chemical and Microbial Environments in New Zealand's Taupō Volcanic Zone. [PDF]

Appl Environ Microbiol, 2016
Lee KC, Stott MB, Dunfield PF, Huttenhower C, McDonald IR, Morgan XC.   +5 more
europepmc   +1 more source