Results 41 to 50 of about 4,400 (204)

Sourcing of Miocene accretionary lapilli on ‘Eua, Tonga; atypical dispersal distances and tectonic implications for the central Tonga Ridge [PDF]

, 2016
Volcaniclastics hosting accretionary lapilli on the Tonga Ridge were sourced from the remnant Lau Ridge, prior to Lau back-arc basin opening. For the ‘Eua occurrences, an atypical dispersal distance of not less than 70 km is estimated, partly arising ...
Beard, Andy, Cunningham, John
core   +1 more source

"Petit spot" rejuvenated volcanism superimposed on plume-derived Samoan shield volcanoes: Evidence from a 645-m drill core from Tutuila Island, American Samoa [PDF]

, 2019
Author Posting. © American Geophysical Union, 2019. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry Geophysics Geosystems 20(3), (2019):
Blusztajn, Jerzy S., Jackson, Matthew G., Konter, Jasper G., Koppers, Anthony A. P., Reinhard, Andrew A., Simms, Alexander R.   +5 more
core   +1 more source

Thallium isotopes as tracers of recycled materials in subduction zones : review and new data for lavas from Tonga-Kermadec and Central America [PDF]

, 2017
© The Author(s), 2017. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution.
Auro, Maureen E., Blusztajn, Jerzy S., Nielsen, Sune G., Prytulak, Julie, Regelous, Marcel, Shu, Yunchao, Walker, James A.   +6 more
core   +1 more source

Eruptive modes and hiatus of volcanism at West Mata seamount, NE Lau basin : 1996–2012 [PDF]

, 2014
Author Posting. © American Geophysical Union, 2014. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry, Geophysics, Geosystems 15 (2014):
Baker, Edward T., Baumberger, Tamara, Chadwick, William W., Dziak, Robert P., Embley, Robert W., Greene, Ronald, Haxel, Joseph H., Lilley, Marvin D., Lupton, John E., Merle, Susan G., Olson, Eric J., Resing, Joseph A., Rubin, Kenneth H., Shank, Timothy M., Walker, Sharon L.   +14 more
core   +1 more source

Disturbances of Doppler Frequency Shift of Ionospheric Signal and of Telluric Current Caused by Atmospheric Waves from Explosive Eruption of Hunga Tonga Volcano on January 15, 2022

Atmosphere, 2023
After the explosive eruption of the Hunga Tonga volcano on 15 January 2022, disturbances were observed at a distance of about 12,000 km in Northern Tien Shan and regarded variations in the atmospheric pressure, in telluric current, and in the Doppler ...
Nazyf Salikhov, Alexander Shepetov, Galina Pak, Vladimir Saveliev, Serik Nurakynov, Vladimir Ryabov, Valery Zhukov   +6 more
doaj   +1 more source

On the Propagation of Traveling Ionospheric Disturbances From the Hunga Tonga‐Hunga Ha'apai Volcano Eruption and Their Possible Connection With Tsunami Waves

Geophysical Research Letters, 2023
We report our analysis of ionospheric disturbances from the 15 January 2022 Tonga volcano eruption, using GPS data from the International GNSS Service network and ionosonde data in the Australian sector.
Rezy Pradipta, Brett A. Carter, Julie L. Currie, Suelynn Choy, Phil Wilkinson, Phillip Maher, Richard Marshall   +6 more
doaj   +1 more source

Consequences of the eruption of the Hunga-Tonga-Hunga-Haapai volcano

Гидросфера. Опасные процессы и явления, 2023
К катастрофическим явлениям Земли надо отнести извержения вулканов, которые иногда приводят к гибели людей, но в основном к значительным экономическим потерям. В качестве яркого примера большой катастрофичности данных явлений можно привести события, связанные с извержением вулкана Кракатау, начавшееся в мае 1883 года и завершившееся серией ...
openaire   +2 more sources

Rapid Volcanic Modification of the E‐Region Dynamo: ICON's First Glimpse of the Tonga Eruption

Geophysical Research Letters, 2022
The 15 January 2022 Hunga Tonga‐Hunga Ha'apai volcano eruption drove global atmospheric waves that propagated into space and impacted the ionosphere. Here we show immediate large‐scale electrodynamic effects of the eruption using observations from the ...
L. Claire Gasque, Yen‐Jung Wu, Brian J. Harding, Thomas J. Immel, Colin C. Triplett   +4 more
doaj   +1 more source

Fossil trees, tree moulds and tree casts in the Palaeocene Mull Lava Field, NW Scotland: context, formation and implications for lava emplacement [PDF]

, 2016
Megafossils and macrofossils of terrestrial plants (trees, leaves, fruiting bodies, etc.) are found in sedimentary and pyroclastic units interbedded with lavas in many ancient lava fields worldwide, attesting to subaerial environments of eruption and the
Bell, Brian R., Williamson, Ian T.
core   +1 more source

HUNGA-TONGA-HUNGA-HA’PAI VOLCANIC ERUPTION/EXPLOSION AND TSUNAMIS OF 14-15 JANUARY 2022 – Overview and Analysis [PDF]

Science of Tsunami Hazards, 2022
The explosive eruption/collapse of the submarine portion of the volcano Hunga-Tonga- Hunga-Ha'apai (HT-HH) on the Tonga Kermadec volcanic arc in the southwest Pacific on 15 January 2022 occurred at the end of many weeks of activity. It was a truly global
George Pararas-Carayannis
doaj