Results 71 to 80 of about 11,130 (249)

Iridium at Kilauea

open access: yesEos, Transactions American Geophysical Union, 1984
Trace‐element anomalies observed in rocks located stratigraphically at the Cretaceous‐Tertiary boundary are considered significant evidence that the boundary is a record of a large meteorite impact (Science, 208, 1095–1108, 1980). In particular, trace metals, including iridium and other members of the platinum metals group, are thought to be enriched ...
openaire   +1 more source

Distribution and Transport of Thermal Energy within Magma–Hydrothermal Systems

open access: yesGeosciences, 2020
Proximity to magma bodies is generally acknowledged as providing the energy source for hot hydrothermal reservoirs. Hence, it is appropriate to think of a “magma–hydrothermal system” as an entity, rather than as separate systems.
John Eichelberger
doaj   +1 more source

A History of UNAVCO: Four Decades of Advancing Geodesy

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract UNAVCO was a university‐governed consortium funded by the National Science Foundation (NSF), with support from the National Aeronautics and Space Administration (NASA) and the United States Geological Survey (USGS), to support geoscience research and education using geodesy.
Emily E. Zawacki   +4 more
wiley   +1 more source

Social sensing a volcanic eruption: application to Kīlauea, 2018 [PDF]

open access: yesNatural Hazards and Earth System Sciences
Protecting lives and livelihoods during volcanic eruptions is the key challenge in volcanology, conducted primarily by volcano monitoring and emergency management organisations, but it is complicated by scarce knowledge of how communities respond in ...
J. Hickey   +9 more
doaj   +1 more source

Magma Ascent and Accumulation Drives Surface Deformation and Ring Fault Seismicity Preceding the 2024 Eruption of Fernandina Volcano, Galápagos Islands

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract At caldera volcanoes, ring faults can play a key role in controlling the dynamics of unrest and patterns of associated surface deformation and seismicity. Here we show that the March 2024 eruption of Fernandina volcano was preceded by a 2.5‐year episode of magma accumulation, driving surface uplift and asymmetric seismicity on a ring fault ...
Andrew F. Bell   +7 more
wiley   +1 more source

Forecasting SO2 emission of Kilauea volcano using intelligent method of data analysis

open access: yesSistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2019
Kilauea is one of the most active and well-known volcanoes in the world and most of our knowledge of volcanism originates from its research. During a long study of volcanoes, many different methods of forecasting their activity were proposed, from the ...
Stanislav Zabielin
doaj   +1 more source

Nakhlite Emplacement as Constrained by X‐Ray Computed Tomography and 3D Quantitative Textural and Petrofabric Analyses

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract Nakhlites, clinopyroxene‐rich rocks, are the largest single‐origin suite of samples from Mars. Despite extensive study to discern their petrogenetic histories, nakhlite emplacement mechanisms and environments are not well‐constrained, and it is unknown whether they represent intrusive or extrusive igneous rocks, or a combination.
Sierra R. Ramsey   +5 more
wiley   +1 more source

Volatiles in glasses from the HSDP2 drill core [PDF]

open access: yes, 2004
H2O, CO2, S, Cl, and F concentrations are reported for 556 glasses from the submarine section of the 1999 phase of HSDP drilling in Hilo, Hawaii, providing a high-resolution record of magmatic volatiles over ~200 kyr of a Hawaiian volcano's lifetime ...
Baker, Michael B.   +5 more
core   +1 more source

The communication of volcano information in New Zealand – a narrative review

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 591-608, December 2025.
ABSTRACT Communication of volcano information is critical for effective volcanic risk management. A variety of information is communicated to inform decisions and guide actions for planning, preparedness, and response. Such information needs to be reliable, and fit‐for‐purpose across different stages of volcanic activity (quiescence, unrest, short or ...
Manomita Das   +15 more
wiley   +1 more source

Static stress implications for Kīlauea volcano activity after the 2018 Hawai'i earthquake

open access: yesGeodesy and Geodynamics
The MW6.9 thrust-faulting earthquake in Hawai'i on May 4, 2018, occurred near the Kīlauea shield volcano. We use 57-day-long continuous Global Positioning System (cGPS) data and 6-day-long semi-continuous GPS data to develop a detailed coseismic slip ...
Lupeng Zhang, Su Tian
doaj   +1 more source

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