Results 131 to 140 of about 33,816 (306)

From Extension to Strike‐Slip Faulting Along the Western Continuation of the North Anatolian Fault in the Northern Aegean Sea: Structural, Geochronological and Geochemical Constraints

Tectonics, Volume 45, Issue 4, April 2026.
Abstract The Northern Aegean region preserves a complex deformation pattern shaped by Miocene extension driven by retreat of the Hellenic subduction system, later overprinted by Plio–Pleistocene transtension linked to the westward propagation of the North Anatolian Fault (NAF). Although numerous structural, geophysical and geochronological studies have
L. R. Berio, E. L. Dantas, A. Kylander‐Clark, R. L. Muniz, M. Pizzati, F. Storti, G. Viola, F. Balsamo   +7 more
wiley   +1 more source

Prediction of the Location of Concealed Pluton on the Spatial Variation Characteristics of Volatile Matter in Coal Seams

Geofluids
The lower the volatile value of coal, the higher the metamorphic degree of coal. As a vector, the spatial variation of the volatilization value of the coal seam be used to explore the location of concealed pluton and to characterize the maximum influence
Yihao Li, Jingui Zhao, Wensheng Li
doaj   +1 more source

Rock debris on glaciers: a mechanism for reducing glacier sensitivity to climate change [PDF]

, 2012
Rock debris covering a glacier surface affects the local melt rate by regulating the amount of solar energy available for melting. Supraglacial debris with a thickness of about 2 cm or more insulates the ice, thereby reducing the heat flux.
Herreid, Samuel
core  

Polycyclic Metamorphism, Exhumation, and Recycling of Subduction Complex Rocks, Cedros Island, Baja California

Tectonics, Volume 45, Issue 4, April 2026.
Abstract High‐pressure rocks from subduction complexes are key records of the physical and chemical processes that operate on the subduction interface, but interpretation of these records requires accurate structural understanding of where they formed in the subduction zone and the mechanisms by which they were exhumed. We present new geologic mapping,
Jordan W. Wang, Paul Kapp, Robert Holder, John He, David Hernández‐Uribe, James Worthington   +5 more
wiley   +1 more source

Structural Characterization of the Pan-African Banyo Area (Western Cameroon Domain): Constraints from Field Observations, Structures and AMS

Geosciences
The Banyo area, located in the southern prolongation of the Mayo Nolti shear zone trend, belongs to the western Cameroon domain of the Neoproterozoic Central African Belt (NCAB). It is made of granitic rocks that intrude metamorphic banded rocks.
Alys Calore Mengou, Bertille Edith Bella Nke, Théophile Njanko, Pierre Rochette, Roland Kanse Onana, François Demory, Emmanuel Njonfang   +6 more
doaj   +1 more source

Correlations and contrasts in structural history and style between an Archaean greenstone belt and adjacent gneiss belt, NE Minnesota [PDF]

An analysis of the deformation along the boundary between the Vermilion Granitic Complex (VGC) and the Vermilion district indicates that the two terranes have seen a similar deformation history since the earliest stages of folding in the area.
Bauer, R. L., Hudleston, P. J., Southwick, D. L.   +2 more
core   +1 more source

The geology of the Ciperez-Garcirrey granicic pluton (Prov. Salamanca, Spain) [PDF]

, 1992
[Resumen] El plutón granítico de Cipérez-Garcirrey es un plut6n tardihercínico bien ircunscrito y de contorno cartográfico de tendencia circular. Está constituido por tres facies principales de las que la facies común, o más extendida, corresponde a un ...
Díez Montes, A., Gallastegui, Gorka
core   +1 more source

Subduction Initiation Volcanism Leading to Development of the Talkeetna Arc, Lower Shuyak Formation, Kodiak Archipelago, Alaska

Tectonics, Volume 45, Issue 4, April 2026.
Abstract Our understanding of subduction initiation remains limited by the difficulty of making direct observations of geologically recent examples. In the geologic record, supra‐subduction zone ophiolites are often interpreted to record syn‐initiation slab rollback and upper plate extension. Unfortunately, many ophiolites are decoupled from records of
B. M. Keough, M. P. Eddy, K. D. Ridgway, W. Crain   +3 more
wiley   +1 more source

Accretionary origin for the late Archean Ashuanipi Complex of Canada [PDF]

The Ashuanipi complex is one of the largest massif granulite terrains of the Canadian Shield. It makes up the eastern end of the 2000 km long, lower-grade, east-west belts of the Archean Superior Province, permitting lithological, age and tectonic ...
Percival, J. A.
core   +1 more source

Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 621-643, April 2026.
Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj, Eleonora Ammannito, Giovanni Pratesi   +2 more
wiley   +1 more source