Results 41 to 50 of about 77,438 (238)

Maars to calderas. End-members on a spectrum of explosive volcanic depressions [PDF]

, 2015
We discuss maar-diatremes and calderas as end-members on a spectrum of negative volcanic landforms (depressions) produced by explosive eruptions (note—we focus on calderas formed during explosive eruptions, recognizing that some caldera types are not ...
Palladino, Danilo Mauro, Sottili, Gianluca, Taddeucci, J., Valentine, G. A.   +3 more
core   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

Ice core evidence for a second volcanic eruption around 1809 in the Northern Hemisphere [PDF]

, 2006
A volcanic signal observed in ice cores from both polar regions six years prior to Tambora is attributed to an unknown tropical eruption in 1809. Recovery of dacitic tephra from the 1809 horizon in a Yukon ice core (Eclipse) that is chemically distinct ...
Germani, Mark S, Kreutz, K, Wake, Cameron P., Whitlow, Sallie I, Yalcin, Kaplan   +4 more
core   +3 more sources

The extension of the taxon cycle model to island plants: insights from the Canarian vascular flora

Biological Reviews, EarlyView.
ABSTRACT Taxon cycle models describe eco‐evolutionary patterns of lineage colonization, diversification, and decline across archipelagos, inferring an important role for competition amongst ecologically similar taxa in driving concurrent niche changes.
José María Fernández‐Palacios, Rüdiger Otto, Robert J. Whittaker   +2 more
wiley   +1 more source

The New Colombian Seismological Network

Geofísica Internacional, 1996
El lnstituto de Investigaciones en Geociencias, Minerla y Química de Colombia (INGEOMINAS) ha empezado a instalar la Red Sismológica Nacional de Colombia -RSNC- bajo los auspicios de la Agencia Canadiense para el Desarrollo lnternacional (CIDA), el ...
Alvaro Nieto Echeverry, Julian Escallón Silva   +1 more
doaj   +1 more source

Charge State Influence on Stability and Isomerism in Dehydrogenated PAHs: Insights from Anthracene, Acridine, and Phenazine

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida, Farouk Hamza Reguig, Manuel Alcamí, Al Mokhtar Lamsabhi   +3 more
wiley   +1 more source

Shear wave splitting and seismic velocity structure in the focal area of the earthquake swarm and their relation with earthquake swarm activity in the Noto Peninsula, central Japan

Earth, Planets and Space
Seismic activity in the Noto region of Ishikawa Prefecture, central Japan, has increased since August 2020 and has continued as of August 2023. Stress changes due to subsurface sources and increases in fluid pressure have been discussed as the causes of ...
Tomomi Okada, Martha K. Savage, Shin’ichi Sakai, Keisuke Yoshida, Naoki Uchida, Ryota Takagi, Shuutoku Kimura, Satoshi Hirahara, Ayaka Tagami, Ryotaro Fujimura, Toru Matsuzawa, Eiji Kurashimo, Yoshihiro Hiramatsu   +12 more
doaj   +1 more source

Stratosphere troposphere coupling: the influence of volcanic eruptions [PDF]

, 2011
Stratospheric sulfate aerosols produced by major volcanic eruptions modify the radiative and dynamical properties of the troposphere and stratosphere through their reflection of solar radiation and absorption of infrared radiation. At the Earth's surface,
Giorgetta, M., Gleixner, Stefanie, Graf, H., Karpechko, A., Krüger, Kirstin, Metzner, Doreen, Schmidt, Hauke, Stenchikov, G., Timmreck, C., Toohey, Matthew, Zanchettin, D.   +10 more
core  

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Precise aftershock distribution of the 2019 Yamagata-oki earthquake using newly developed simple anchored-buoy ocean bottom seismometers and land seismic stations

Earth, Planets and Space, 2022
An earthquake with a magnitude of 6.7 occurred in the Japan Sea off Yamagata on June 18, 2019. The mainshock had a source mechanism of reverse-fault type with a compression axis of WNW–ESE direction.
Masanao Shinohara, Shin’ichi Sakai, Tomomi Okada, Hiroshi Sato, Yusuke Yamashita, Ryota Hino, Kimihiro Mochizuki, Takeshi Akuhara   +7 more
doaj   +1 more source