Results 121 to 130 of about 6,694 (263)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.Abstract Pressure and temperature estimates of metamorphic terranes are increasingly retrieved from forward thermodynamic modeling coupled with isopleth thermobarometry. Although geodynamic reconstructions are mathematically derived, thermobarometric estimates are limited by a lack of quantitative constraints, especially on their uncertainties.
A. Petroccia +6 more
wiley +1 more source
Thermal structure and exhumation history of the Lesser Himalaya in central Nepal [PDF]
, 2004 The Lesser Himalaya (LH) consists of metasedimentary rocks that have been scrapped off from the underthrusting Indian crust and accreted to the mountain range over the last ~20 Myr. It now forms a significant fraction of the Himalayan collisional orogen.
Avouac, J. P. +7 more
core +1 more source
Tectono-metamorphic evolution of the Wadi Hafafit Culmination (central Eastern Desert, Egypt). Implication for Neoproterozoic core complex exhumation in NE Africa [PDF]
, 2008 The Neoproterozoic rock assemblages in the Wadi Hafafit Culmination (WHC) can be subdivided into two main units which are separated by the Nugrus Thrust.
El-Naby, H. Abd +3 more
core +2 more sources
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.Abstract The subduction interface hosts megathrust earthquakes and ductile creep, is fluid‐rich and chemically dynamic, and produces metasomatic rocks that may host episodic tremor and slow slip (ETS). However, determining the depths at which these metasomatic rocks form and deform remains challenging.
W. Hoover +5 more
wiley +1 more source
Response to a comment by Chun-Ming Wu on "Quantifying the tectono-metamorphic evolution of pelitic rocks from a wide range of tectonic settings: mineral compositions in equilibrium” [PDF]
, 2018 Commonly used thermometer and barometer calibrations are sensitive to mineral assemblage and, thus, bulk-rock composition. Calculated mineral stabilities for an average pelitic rock over a pressure-temperature (PT) range appropriate for normal, thickened,
Caddick, Mark, Thompson, Alan
core +1 more source
Solid Earth, 2020 . Retrograde metamorphic rocks provide key insights into the pressure–temperature (P–T) evolution of exhumed material, and resultant P–T constraints have direct implications for the mechanical and thermal conditions of subduction interfaces.
Miguel Cisneros +5 more
semanticscholar +1 more source
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.Abstract Glacial loading and unloading could impact eruptive outputs at mid‐ to high‐latitude arc volcanoes, yet the influence on magma storage conditions remains poorly understood. Mocho‐Choshuenco volcano in the Andean Southern Volcanic Zone has been impacted by the advance and retreat of the Patagonian ice sheet (PIS).
Pablo Moreno‐Yaeger +9 more
wiley +1 more source
Metamorphism of the Oddanchatram anorthosite, Tamil Nadu, South India [PDF]
The Oddanchatram anorthosite is located in the Madurai District of Tamil Nadu, near the town of Palni. It is emplaced into a granulite facies terrain commonly presumed to have undergone its last regional metamorphism in the late Archean about 2600 m.y ...
Janardhan, A. S., Wiebe, R. A.
core +1 more source
Seismological structure of the 1.8 Ga Trans-Hudson Orogen of North America [PDF]
, 2016 Precambrian tectonic processes are debated: what was the nature and scale of orogenic events on the younger, hotter, and more ductile Earth? Northern Hudson Bay records the Paleoproterozoic collision between the Western Churchill and Superior plates—the ∼
Abbott +62 more
core +1 more source
The Effects of Retrograde Reactions and of Diffusion on 40Ar-39Ar Ages of Micas [PDF]
, 2017 The effects of metamorphic reactions occurring during decompression were explored to understand their influence on the 40Ar-39Ar ages of micas. Monometamorphic metasediments from the Lepontine Alps (Switzerland) reached lower amphibolite facies during ...
Allaz, J. +3 more
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