Results 81 to 90 of about 1,086 (189)

Numerical Modeling Integrated With Field Observations and Analytical Data of the 2021 Cumbre Vieja Eruption Improves Understanding of Eruption Dynamics at Mafic Volcanoes

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract Abrupt transitions in eruptive style are common at mafic volcanoes, possibly leading to styles that potentially damage infrastructures and threaten the surrounding communities. During the 19th September–13th December 2021 Cumbre Vieja eruption (La Palma, Canary Islands), rapid changes in eruptive style were observed, from vigorous lava ...
Elisa Biagioli, Giuseppe La Spina, Margherita Polacci, Barbara Bonechi, Jorge E. Romero, Mike Burton   +5 more
wiley   +1 more source

Metamorphic conditions of the omphacite-garnet gneiss from Otrøy, Western Gneiss Region, Scandinavian Caledonides [PDF]

, 2016
The Western Gneiss Region (WGR) is one of the Earth’s most studied ultra-high pressure (UHP) terranes. It consists of continental crustal rocks that host e.g. coesite-bearing eclogites and diamond-bearing garnet-pyroxenites.
Holmberg, J., Majka, J., Klonowska, I.
core   +1 more source

Magma‐Assisted Flexure of Hawaiian Lithosphere Inferred From Three‐Dimensional Models of Lithospheric Flexure Constrained by Active Source Seismic Data

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract Reprocessed and newly acquired seismic data provide new constraints on lithospheric flexure profiles beneath the Hawaiian Islands. We use these new observations and three‐dimensional numerical models of lithospheric deformation combining elasticity, brittle failure, low‐temperature plasticity (LTP) and high‐temperature creep deformation ...
D. Douglas, G. Ito, B. Boston, R. Dunn, J. Naliboff, P. Wessel, A. B. Watts, D. Shillington, P. Cilli   +8 more
wiley   +1 more source

Rift‐Related Low‐Pressure–High‐Temperature Granulite Facies Metamorphism Generates Widespread Peraluminous Crustal Melts: Evidence From the Early Jurassic Mexican Crust

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract High heat fluxes occurring in rift settings are expected to generate partially melted low‐pressure–high‐temperature granulites (LP–HTG). Therefore, studying these rocks can offer valuable insights into crustal reworking during extension. However, our interpretations are limited by the rarity of LP–HTG in the metamorphic record.
Anthony Ramírez‐Salazar, Mattia Parolari, Arturo Gómez‐Tuena, Fernando Ortega‐Gutiérrez, Mariano Elías‐Herrera   +4 more
wiley   +1 more source

Early Neoproterozoic magmatism and Caledonian metamorphism recorded by the Mårma Terrane, Seve Nappe Complex, northern Swedish Caledonides

, 2023
Figure S1. Geothermobarometry results for sample KB17-14b. Ellipses, both violet and light blue, indicate the garnet-biotite thermometer (GB) of Holdaway (2000) and the garnet-biotite-muscovite-plagioclase barometer (GBMP) of Wu (2015) for garnet core ...
Riccardo Callegari (16005576), Karolina Kośmińska (9856913), Jarosław Majka (2842547), Ellen Kooijman (2843483), Patrik Witt-Nilsson (16005588), Sabine Rousku (16005582), Christopher J. Barnes (7066265), Iwona Klonowska (9856916), Abigail K. Barker (16005579), Erika Nääs (16005585)   +9 more
core   +1 more source

The Anchimetamorphic Tectonic Mélange of Tempa Roccarossa (Southern Apennines, Italy): Insights on the Kinematic and Thermobaric Evolution of the Upper Miocene‐Pliocene Orogenic Wedge

Tectonics, Volume 44, Issue 5, May 2025.
Abstract Studies of tectonic mélanges provide constraints on the evolution of active plate margins. However, resolving the pressure‐temperature trajectories of these deformed rocks, which are exhumed from low‐temperature conditions, can be challenging.
S. Vitale, G. L. Cardello, F. Cavalcante, L. Fedele, P. Lanari, M. Mehmood, J. Natale, L. Peruzzo, S. Ciarcia   +8 more
wiley   +1 more source

The lithospheric mantle below southern West Greenland:a geothermobarometric approach to diamond potential and mantle stratigraphy.

, 2009
Geothermobarometry of primarily garnet lherzolitic xenoliths from several localities in southern West Greenland is applied to address the diamond potential, pressure and temperature distribution and the stratigraphy of the subcontinental lithospheric ...
Nielsen, Troels F.D., Pearson, D. Graham, Makovicky, Emil, Waight, Tod Earle, Hutchison, Mark T., Sand, Karina Krarup, Tod E. Waight, Emil Makovicky, Karina K. Sand, Troels F.D. Nielsen, D. Graham Pearson, Mark T. Hutchison   +11 more
core   +1 more source

GRENVILLE ZONAL BARROW-TYPE METAMORPHISM IN THE ISHERIM ANTICLINORIUM (NORTHERN URALS)

Геодинамика и тектонофизика
The relevance of the work is determined by a poor knowledge of metamorphic processes in the Precambrian complexes of the Urals. The object of the study is the Belokamenka metamorphic complex of the Ishemir anticlinorium of the Northern Urals.
G. A. Petrov, S. K. Baltybaev
doaj   +1 more source

Reported ultra-low lava viscosities from the 2021 La Palma eruption are potentially biased. [PDF]

Nat Commun, 2023
Gisbert G, Troll VR, Day JMD, Geiger H, Perez-Torrado FJ, Aulinas M, Deegan FM, Albert H, Carracedo JC.   +8 more
europepmc   +1 more source

Geothermobarometry of Metamorphic Rocks Associated with the Sanak-Baranof Plutonic Belt in the Chugach-Prince William Terrane, Southern Alaska

The southern Alaska margin is a complex geologic region with a history of subduction-accretion, plutonism, and metamorphism. The Chugach–Prince William accretionary terrane (CPW) is intruded by the Sanak-Baranof plutonic belt, a series of intrusions ...
Boyle, Claire
core   +1 more source