Results 41 to 50 of about 765 (157)
Abstract Wood boring ambrosia beetles play a central role in the spread of Ceratocystis wilt of ‘ōhi‘a, a fungal disease caused by Ceratocystis lukuohia that kills the bioculturally important ‘ōhiʻa (Metrosideros polymorpha) tree. Beetles contribute to the spread of the disease by extruding fungus‐infected wood particles (frass). Disease mitigation can
Robert W. Peck +4 more
wiley +1 more source
No Measurable Calcium Isotopic Fractionation During Crystallization of Kilauea Iki Lava Lake
In order to investigate possible Ca isotopic fractionation during basaltic magma differentiation, we measured Ca isotopic compositions of lavas recovered from Kilauea Iki lava lake at Hawaii.
Hongming Zhang +7 more
doaj +1 more source
Density structure of the island of Hawai'i and the implications for gravity-driven motion of the south flank of Kīlauea Volcano [PDF]
Roger P. Denlinger, A. F. Flinders
openalex +1 more source
Abstract Observations of ground deformation provide insights on the triggering mechanisms of eruptions. At Aniakchak Crater (Aleutians) InSAR measured ∼ ${\sim} $72 cm of uplift in less than 7 months between 2022 and 2023. The uplift can be explained by the inflation of a point pressure source at a depth of 3.2 km.
Francisco Delgado
wiley +1 more source
Among the hazards posed by volcanoes are the emissions of gases and particles that can affect air quality and damage agriculture and infrastructure. A recent intense episode of volcanic degassing associated with severe impacts on air quality accompanied ...
Rachel C. W. Whitty +17 more
doaj +1 more source
Lava fountain jet noise during the 2018 eruption of fissure 8 of Kīlauea volcano
Real-time monitoring is crucial to assess hazards and mitigate risks of sustained volcanic eruptions that last hours to months or more. Sustained eruptions have been shown to produce a low frequency (infrasonic) form of jet noise.
Julia E. Gestrich +8 more
doaj +1 more source
Helium isotopes constrain magma sources and emplacement beneath Kīlauea caldera during the 2018 and 2020 eruptions [PDF]
Gary M. McMurtry +4 more
openalex +1 more source
The Age and Composition of the Voyager Seamounts: Evidence for a Long‐Lived Marquesas Mantle Source
Abstract We present new observations on the dynamics and locations of deep mantle reservoirs derived from the ages and compositions of Voyager Seamount Chain lava flows. The previously unexplored Voyager Seamount Chain trends NW–SE between the Mid‐Pacific Mountains and the Northwestern Hawaiian Ridge.
Andrea Balbas +8 more
wiley +1 more source
Recent activity at Nyiragongo and lava-like occurrences [PDF]
The behaviour of Nyiragongo, before and after its outbreak on January 10th, 1977, as compared with the behaviour of the other two volcanoes containing subpermanent lava-lakes nowadays, Erta'Ale and Mount Erebus, suggests that the considerable convection ...
H. Tazieff
doaj +1 more source
Abstract Three voluminous inflated lobate lava flow complexes on the distal rifts of Axial Seamount are much larger than other known flows in the global spreading system. Each complex is 65–100 km2, is up to 130 m thick, and is ∼3.0–4.6 km3, almost 100 times the volumes of historical Axial flows.
Jennifer B. Paduan +5 more
wiley +1 more source

