Results 51 to 60 of about 411 (170)

A 3D View of Igneous Plumbing Systems in Sedimentary Basins: Examples From the Santos and Campos Basins (Brazilian Margin)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Igneous Plumbing Systems in sedimentary basins comprise a complex of interconnected intrusive bodies that lead to volcano formation, though their 3D distribution and dynamics are not fully understood. We characterized the post‐breakup igneous plumbing systems at the Santos and Campos Basins using wells and 3D high‐resolution seismic and ...
A. Garcia, N. Stanton, A. Gordon
wiley   +1 more source

Shear‐Velocity Structure and Dynamics Beneath the Sicily Channel and Surrounding Regions of the Central Mediterranean Inferred From Seismic Surface Waves

Geochemistry, Geophysics, Geosystems, 2022
The evolution of the Sicily Channel Rift Zone (SCRZ) is thought to accommodate the regional tectonic stresses of the Calabrian subduction system. Much of the observations we have today are either limited to the surface or to the upper crust or deeper ...
M. R. Agius, F. Magrini, G. Diaferia, E. D. Kästle, F. Cammarano, C. Faccenna, F. Funiciello, M. van derMeijde   +7 more
doaj   +1 more source

Extreme intensity of fluid-rock interaction during extensive intraplate volcanism [PDF]

Geochimica et Cosmochimica Acta, 2019
Abstract The initial formation and temporal evolution of large igneous plateaus and the extent to which these large enigmatic igneous features impact on their immediate and distant ecological surrounding remains a matter of active research. The compositional variability in large igneous provinces has mainly been attributed to changes in the melting ...
Christoph Beier, Wolfgang Bach, Alexander V. Busch, Felix S. Genske, Christian Hübscher, Stefan H. Krumm   +5 more
openaire   +2 more sources

Volcanic History of Rodrigues Island and Its Relationship With the Central Indian Ridge and the Réunion Hotspot

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Many intraplate volcanic chains are explained as hotspot trails formed by plate motion over mantle plumes, yet some deviate from this model. The Rodrigues Ridge, a volcanic lineament extending eastward from the Réunion hotspot track toward the Central Indian Ridge (CIR), is one such case.
Julien Seghi, Vincent Famin, Xavier Quidelleur, Loraine Gourbet, Martin Danišík, Axel K. Schmitt, François Nauret, Sidonie Revillon, Maëlis Arnould, Laurent Michon, Reshad Jhangeer‐Khan   +10 more
wiley   +1 more source

Evidence for Petit‐Spot Volcanism in the Puerto Rico Trench

Geophysical Research Letters
Petit‐spot volcanism occurs in intraplate settings along the outer rise of subducting plates. Here we present evidence for petit‐spot type of volcanism from multibeam bathymetry and backscatter data from the Puerto Rico Trench (PRT).
Nicholas Harmon, William Danforth, Uri Ten Brink, J. Pablo Canales, Shuoshuo Han, Elizabeth Vanacore, Jose‐Luis Granja‐Bruña, Wayne Baldwin, Seth Ackerman, Liam Moser, Elisaveta Sokolkova   +10 more
doaj   +1 more source

Major element data, 40Ar/39Ar step-heating and step-crushing data for anorthoclase megacrysts from the Newer Volcanic Province, south-eastern Australia

Data in Brief, 2018
We provide the dataset associated with the research article “40Ar/39Ar ages of alkali feldspar xenocrysts constrain the timing of intraplate basaltic volcanism” Matchan et al. [1].
E.L. Matchan, D. Phillips, E. Traine, D. Zhu   +3 more
doaj   +1 more source

Varying Shear Wave Splitting Parameters Suggest Interaction Between Lithosphere and Asthenosphere in Arxan‐Chaihe Volcanic Field, NE China

Geophysical Research Letters, 2022
Over 2 years of broadband seismic data from 27 temporary stations deployed in the Arxan‐Chaihe Volcanic Field (ACVF) provides us a valued opportunity to study mantle deformation and related geodynamic processes in NE China intraplate region. We estimated
Zhengyang Qiang, Qingju Wu, Yonghua Li, Fengxue Zhang   +3 more
doaj   +1 more source

Late Eocene to Early Oligocene (36–26 Ma) Rock Magnetism and Magnetostratigraphy of IODP Site U1553, Southwestern Pacific: Defying the Challenges of Carbonate Dilution and Reductive Diagenesis

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract The late Eocene to early Oligocene is an intriguing Paleogene period in which the Earth climate state changed from Warmhouse to Coolhouse. Accurate age models are essential for investigating these climate transitions. The southwestern Pacific International Ocean Discovery Program (IODP) Site U1553, with its almost complete succession of the ...
Yang Zhang, Wanzhang Wang, Tilo von Dobeneck, Anna Joy Drury, Thomas Frederichs, Wei Yuan   +5 more
wiley   +1 more source

CARBONIFEROUS 40Ar/39Ar AGE OF THE RARE METAL-ENRICHED RHYOLITES AND IGNIMBRITES IN THE SAKMARA ALLOCHTHON OF THE SOUTHERN URALS, THEIR GEOCHEMICAL FEATURES AND GEODYNAMIC SETTING

Известия высших учебных заведений: Геология и разведка, 2018
In the structure of the Sakmara allochthon of the Southern Uralssequence with rhyolites and ignimbrites locally occures. They have Nb-Zr-REE geochemical specialization.
A. V. Ryazantsev, A. V. Pilitsina, I. A. Novikov, K. E. Degtyarev   +3 more
doaj   +1 more source

Crustal Magma Storage and Plumbing System Beneath the Tianchi and Wangtian'e Volcanoes, Changbaishan Intraplate Volcanic Field, China and North Korea

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract The Changbaishan volcanic field, which includes the Tianchi and Wangtian'e volcanoes in China and the Namphothe volcano in North Korea, is one of the most complex and hazardous volcanic regions on Earth due to its tectonic setting and explosive Holocene activity.
Xiaomeng Niu, Xingli Fan, Xin Wang, Qi‐Fu Chen, Yanru An, Daining Yang, Yunjie Ji, Yuhan Ding, Jianhong Kang, Sheng Guan   +9 more
wiley   +1 more source