Results 71 to 80 of about 5,012 (243)

Post–12 Ma deformation in the lower Colorado River corridor, southwestern USA: Implications for diffuse transtension and the Bouse Formation

open access: yesGeosphere, 2019
Structural evidence presented here documents that deformation was ongoing within the lower Colorado River corridor (southwestern USA) during and after the latest Miocene Epoch, postdating large-magnitude extension and metamorphic core complex formation ...
Jacob O. Thacker   +9 more
semanticscholar   +1 more source

Evolving Strain Partitioning Driven by Multiple Plate Interaction—Paleotectonic Reconstruction of Northwestern South America During the Cenozoic

open access: yesTectonics, Volume 44, Issue 12, December 2025.
Abstract In Northwestern South America (NWSA) geodetic observations point to a consistent northeastward displacement of blocks, while the geological record shows a predominant shortening in NW‐SE direction. Such clear evidence of strain partitioning has been extensively studied in the context of two convergent plates, but not in complex tectonic area ...
Román González   +8 more
wiley   +1 more source

A Cenozoic Shift From Extensional to Strike‐Slip Tectonics in the Central Mediterranean Sea

open access: yesTectonics, Volume 44, Issue 12, December 2025.
Abstract High‐resolution 3D seismic reflection data, structural interpretations and expansion index analyses are combined in this work to explain the mechanisms that drove a newly discovered shift from extensional to strike‐slip tectonics in the central Mediterranean region. In the Crotone Basin, Early Pliocene extension predominated at first as proven
Giacomo Mangano   +4 more
wiley   +1 more source

Geophysical and Geochemical Constraints on Magma Storage Depths Along the Cascade Arc: Knowns and Unknowns

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The iconic volcanoes of the Cascade arc stretch from Lassen Volcanic Center in northern California, through Oregon and Washington, to the Garibaldi Volcanic Belt in British Columbia.
Penny E. Wieser   +3 more
doaj   +1 more source

The pull apart-type Tardets-Mauléon Basin, a key to understand the formation of the Pyrenees

open access: yesBSGF - Earth Sciences Bulletin, 2017
Contrary to recent conceptual models, we evidence that the Mauléon Basin does not only result from the Pyrenean tectonic inversion of an aborted Albian rift involving a N-S extreme crust thinning, with related detachment and mantle exhumation.
Canérot Joseph
doaj   +1 more source

Miocene tectonics of the Maramures area (Northern Romania): implications for the Mid-Hungarian fault zone [PDF]

open access: yes, 2018
The interplay between the emplacement of crustal blocks (e.g. "ALCAPA”, "Tisza”, "Dacia”) and subduction retreat is a key issue for understanding the Miocene tectonic history of the Carpathians.
Fügenschuh, B.   +3 more
core  

Japan Sea, opening history and mechanism: A synthesis [PDF]

open access: yes, 1994
Laurent Jolivet est Professeur à l'Université d'Orléans au 1er Septembre 2009International audienceThe respective tectonic effects of back arc spreading and continental collision in Asia are considered either as two independent processes or as closely ...
Amano   +121 more
core   +4 more sources

Characterization of Diffusion‐Creep Olivine Fabric and Its Identification in Natural Peridotite: Repeated Pure Shear and Equal‐Channeling Angular Pressing Tests

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract We performed repeated pure shear and equal‐channel angular pressing tests on Fe‐free olivine +10 or 20 vol% diopside aggregates to investigate the characteristics of crystallographic preferential orientation (CPO) development in olivine during diffusion creep.
N. Kim, S. Jiang, T. Hiraga
wiley   +1 more source

Refined model of incremental emplacement based on structural evidence from the granodioritic Newry igneous complex, Northern Ireland [PDF]

open access: yes, 2017
Although many intrusions are now known to have been incrementally emplaced, the mechanisms through which this takes place are generally poorly understood.
Anderson, P. E.   +7 more
core   +2 more sources

Contemporaneous Stress in Taiwan: Evidence for Orogen‐Parallel Extension and Lower Crustal Extrusion

open access: yesTectonics, Volume 44, Issue 11, November 2025.
Abstract Syn‐to late‐orogenic extension caused by gravitational collapse is a process that has been documented in most orogens. In this paper, we investigate the contemporaneous stress field in Taiwan to examine syn‐orogenic extensional faulting and the possible gravitational collapse modes by which it is taking place.
O. Lozano‐Blanco   +5 more
wiley   +1 more source

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