Results 81 to 90 of about 1,041,229 (154)

Pre‐Eruptive Volatiles and Magma Storage Depth for the 2018 Eruption at Mount Veniaminof, Alaska

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Mount Veniaminof is a frequently active, open‐system arc volcano on the Alaska Peninsula, part of the Alaska‐Aleutian arc. Mount Veniaminof's September–December 2018 eruption began with small lava flows and culminated in a larger explosive event in November that produced a 450 km long continuous ash plume—one of the volcano's most significant ...
E. G. Huggins, P. Ruprecht, M. Loewen, M. Gavrilenko, R. J. Bodnar, M. Harlaux   +5 more
wiley   +1 more source

PARSIVEL Tephra-fall Observations at Sakurajima Volcano [PDF]

, 2015
The diameter and the fall velocity of tephra fall at Sakurajima volcano were measured on-site by a laser-optical Particle Size Velocity (PARSIVEL) disdrometer.
三輪, 学央, 味喜, 大介, 眞木, 雅之, 小園, 誠史, 井口, 正人, 前坂, 剛   +5 more
core  

Evidence for the continental origin of Pliocene deposits in the central Baja California peninsula, Mexico, and implications for controls on biodiversity

Sedimentology, Volume 73, Issue 6, Page 2488-2518, October 2026.
ABSTRACT Previous studies have documented genetic divergence within the last few million years between northern and southern populations of terrestrial plants and animals along the Baja California peninsula, with many studies hypothesising that the divergence is due to an ancient seaway that crossed the central peninsula and created a physical barrier ...
Kevin K. Gardner, Rebecca J. Dorsey, Stephen T. Hasiotis, José Luis Antinao, Michael H. Darin, Scott E. K. Bennett, Matthew Heizler, Greer Dolby, Brian Hausback   +8 more
wiley   +1 more source

Tephrochronological evidence for the late Holocene eruption history of El Chichón Volcano, Mexico [PDF]

Geofísica Internacional, 2009
Pre-Columbian societies in the Maya Lowlands were repeatedly exposed to tephra-fall from past eruptions of El Chichón volcano, Chiapas, Mexico. Late Holocene tephra layers are well preserved in sediments of the Usumacinta-Grijalva river delta, about 150 ...
A. L. Martin Del Pozzo, L. A. Tebbens, C. A. M. Nooren, W.Z. Hoek   +3 more
doaj  

Confinement‐controlled architecture of stacked resedimented volcaniclastic beds in the Miocene Eoil Basin, SE Korea

The Depositional Record, Volume 12, Issue 4, September 2026.
In the Miocene Eoil Basin, SE Korea, topographic confinement‐controlled the architecture of surge‐stacked resedimented volcaniclastic beds. Near the channel axis, successive debris flow surges amalgamated into thick, clast‐rich deposits; towards less‐confined margins, flow transformation produced graded and stratified trailing divisions.
Chang Woo Kwon
wiley   +1 more source

Tephra deposit inversion by coupling Tephra2 with the Metropolis-Hastings algorithm: algorithm introduction and demonstration with synthetic datasets

Journal of Applied Volcanology, 2021
In this work we couple the Metropolis-Hastings algorithm with the volcanic ash transport model Tephra2, and present the coupled algorithm as a new method to estimate the Eruption Source Parameters of volcanic eruptions based on mass per unit area or ...
Qingyuan Yang, E. Bruce Pitman, Marcus Bursik, Susanna F. Jenkins   +3 more
doaj   +1 more source

Sedimentology and geochemistry of the recent sediments of the river system on Hurd Peninsula, Livingston Island, Antarctica

The Depositional Record, Volume 12, Issue 4, September 2026.
This study investigates the sedimentology and geochemistry of recent sediments from ephemeral river systems on Hurd Peninsula, Livingston Island, Antarctica. These systems are important for understanding sedimentary and geochemical processes in unique polar environments.
Yakup Çelik, Merve Özyurt, Raif Kandemir   +2 more
wiley   +1 more source

Decoupling of Dissolved and Colloidal Export Across the Hydrograph of an Early Pedogenic Stage Critical Zone Observatory

Hydrological Processes, Volume 40, Issue 9, September 2026.
Sampling strategy, analytical methods, and main results of this study of dissolved and colloidal export during an irrigation experiment of basaltic hillslopes at the experimental facility of the Landscape Evolution Observatory. ABSTRACT This study investigates colloid transport under early weathering conditions using the Landscape Evolution Observatory
M. Gelin, J. Bouchez, M. Tharaud, C. J. Cunningham, J. Chorover, M. F. Benedetti   +5 more
wiley   +1 more source

Characterization of the Plumbing System Beneath Askja Caldera, Iceland, Revealed by Microgravity and Deformation Data During Uplift Between 2022 and 2023

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract In July 2021, an episode of uplift started at Askja caldera, Iceland, following over 50 years of subsidence. The initial inflation rate was approximately 700mm/yr $700\hspace*{.5em}\mathrm{m}\mathrm{m}/\mathrm{y}\mathrm{r}$, declining to 350mm/yr $350\hspace*{.5em}\mathrm{m}\mathrm{m}/\mathrm{y}\mathrm{r}$ within 1 month.
Josefa Sepúlveda‐Araya, Andrew Hooper, Elske van Dalfsen, Susanna K. Ebmeier, Michelle Parks, Freysteinn Sigmundsson, Yilin Yang, Milan Lazecký, Mathijs Koymans, Chiara Lanzi, Pedro Espín‐Bedón   +10 more
wiley   +1 more source

Influence of Surface Processes on Intrarift Fault Displacement: 1.38 Million Years of Fault Slip Behavior in the Lake Malawi (Nyasa) Rift

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Surface processes, including hydroclimate variations, affect crustal deformation and fault behavior. These controls are especially important for intrarift faults in continental rift systems, which accommodate substantial strain while experiencing large hydrological load variations beneath rift lakes.
J. M. Greenlee, C. A. Scholz, L. Xue, D. J. Shillington, R. Moucha, P. R. N. Chindandali   +5 more
wiley   +1 more source