Results 91 to 100 of about 1,147,354 (242)

Magma mass increase under Sakurajima Volcano, Japan, inferred from campaign relative gravity and leveling data from 1975 to 1992: an interpretation from volcanic gas studies

Earth, Planets and Space
Temporal variations of volume and mass in the magma chambers of Sakurajima Volcano were modeled using leveling and relative gravity data collected around the volcano during the eruptive period from 1975 to 1992, to reveal a physical mechanism for the ...
Ryo Oyanagi, Takahito Kazama, Ryunosuke Kazahaya, Isoji Miyagi, Keigo Yamamoto, Masato Iguchi   +5 more
doaj   +1 more source

Contamination of MORB by anatexis of magma chamber roof rocks: Constraints from a geochemical study of experimental melts and associated residues

, 2014
Mid-ocean ridge basalts (MORBs) are the most abundant magmas produced on Earth. They are widely studied to infer mantle compositions and melting processes.
J. Koepke, C. MacLeod, B. Ildefonse, M. Godard, E. Deloule   +4 more
semanticscholar   +1 more source

Seismic Exploration for Magmatic Brine Lenses: An Example From Soufrière Hills Volcano, Montserrat

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract The majority of metallic ore deposits are related to processes associated with ancient or modern volcanic systems. Beyond geothermal energy production, volcanoes also represent a potential resource of critical metals, including those required for carbon‐neutral technologies. Geothermal metals occur in subsurface fluid reservoirs fed by surface
Petros Bogiatzis, J.‐Michael Kendall, Jonathan D. Blundy, Graham A. Ryan, Alan F. Baird   +4 more
wiley   +1 more source

Infiltration Metasomatism of Cumulates by Intrusive Magma Replenishment: the Wavy Horizon, Isle of Rum, Scotland [PDF]

The Eastern Layered Intrusion of the Rum Layered Suite comprises paired peridotite and allivalite (troctolite and gabbro)layers forming 16 macro-rhythmic units.
Woods, A. W., Hallworth, M. A., Holness, M. B., Sides, R. E.   +3 more
core  

Students’ Satisfaction with Hybrid Learningin the School of Accountancy, Universityof the Thai Chamber of Commerce:A Case Study of Principles of Accounting

, 2011
The primary objective of this research was to study student’s satisfactory levels withhybrid learning, School of Accountancy, University of the Thai Chamber of Commerce:A Case Study of Principles of Accounting.
Chowivattana, Isaree
core   +1 more source

Magnetotelluric evidence for the deep causes of different eruptive styles of Changbaishan Tianchi and Longgang volcanoes

Scientific Reports
Longgang Volcano (LGV) and Changbaishan Tianchi Volcano (CTV) share a common magmatic source at mantle depths. However, the two volcanoes have produced completely different types of eruptions.
Lingqiang Zhao, Yan Zhan, Duygu Kiyan, Jiandong Xu, Yaxuan Hu, Ji Tang, Xiangyu Sun, Qingliang Wang, Cong Cao   +8 more
doaj   +1 more source

Numerical modeling predicts seismic resonances in the magma chamber-conduit system due to wavefield capturing

Volcanica
This study utilizes 3D numerical models to simulate seismic resonances in a volcanic edifice, arising from the interaction between an externally excited wavefield and a magma chamber-conduit system.
Fabian Limberger, Georg Rümpker
doaj   +1 more source

Dike‐Induced Earthquakes as Probes of the Local Stress Field Prior to the 1998 Eruption of the Piton de la Fournaise Volcano, La Réunion

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Volcano‐tectonic (VT) earthquakes generated during dike propagation provide useful constraints on stress changes in volcanic systems. During the 1998 pre‐eruptive unrest at Piton de la Fournaise, ∼600 VT earthquakes were recorded. Using manually picked first‐motion polarities and corrected station metadata, we calculated more than 400 high ...
Yiwen Huang, Yan Zhan, Diana C. Roman, Valérie Ferrazzini, Zacharie Duputel   +4 more
wiley   +1 more source

The Pobei Cu-Ni and Fe ore deposits in NW China are comagmatic evolution products: evidence from ore microscopy, zircon U-Pb chronology and geochemistry

Geologica Acta, 2017
The Pobei mafic-ultramafic complex in northwestern China comprises magmatic Cu-Ni sulfide ore deposits coexisting with Fe-Ti oxide deposits. The Poshi, Poyi, and Podong ultramafic intrusions host the Cu-Ni ore. The ultramafic intrusions experienced four
Y.G. LIU, W.Y. LI, X.B. LÜ, Y.H. HUO, B. ZHANG   +4 more
doaj  

Grain to outcrop-scale frozen moments of dynamic magma mixing in the syenite magma chamber, Yelagiri Alkaline Complex, South India

, 2014
Magma mixing process is unusual in the petrogenesis of felsic rocks associated with alkaline complex worldwide. Here we present a rare example of magma mixing in syenite from the Yelagiri Alkaline Complex, South India.
M. L. Renjith, S. Charan, D. Subbarao, E V. S. S. K. Babu, V. Rajashekhar   +4 more
semanticscholar   +1 more source