Results 1 to 10 of about 2,637,113 (187)
Tracing ultrahigh-pressure metamorphism at the catchment scale. [PDF]
Sci Rep, 2018 AbstractFinding traces of ultrahigh-pressure (UHP) metamorphism in the geological record has huge implications for unravelling Earth’s geodynamic evolution, such as the onset of deep subduction. Usually, UHP rocks are identified by specific mineral inclusions like coesite and characteristic petrographic features resulting from its (partial ...
Schönig J +3 more
europepmc +8 more sources
The Sedimentary Record of Ultrahigh-Pressure Metamorphism: A Perspective Review [PDF]
Earth-Science Reviews, 2022 Tracing ultrahigh-pressure (UHP) metamorphism of crustal rocks through the geological record is a key for understanding the evolution of plate tectonics on Earth due to the linkage with deep subduction processes. Until recently, UHP research was almost exclusively based on the investigation of crystalline rocks, but findings of coesite and diamond ...
Guido Meinhold +2 more
exaly +4 more sources
Detrital garnet petrology challenges Paleoproterozoic ultrahigh-pressure metamorphism in western Greenland [PDF]
European Journal of Mineralogy, 2023 Modern-style plate tectonics is characterised by the global operation of cold and deep subduction involving blueschist facies and ultrahigh-pressure metamorphism.
J. Schönig +4 more
doaj +3 more sources
Pohorje eclogites revisited: Evidence for ultrahigh-pressure metamorphic conditions
Geologija, 2010 Kyanite eclogites from the Pohorje Mountains, Slovenia, are providing the first evidence of ultrahigh-pressureEo-Alpine metamorphism in the Eastern Alps. Polycrystalline quartz inclusions in garnet, omphacite and kyaniteare surrounded by radial fractures
Mirijam Vrabec
doaj +3 more sources
Metamorphic evolution of amphibolite from Proto-Tethys South Altyn orogen and its geological significance [PDF]
Scientific ReportsMedium- to low-grade metamorphic (LP–MP) rocks, though major constituents of collisional orogens, remain less studied than high-to ultrahigh-pressure (HP–UHP) counterparts.
Shihao Zhang +3 more
doaj +2 more sources
Acidic fluids in the Earth’s lower crust [PDF]
Scientific Reports, 2021 Fluid flux through Earth’s surface and its interior causes geochemical cycling of elements in the Earth. Quantification of such process needs accurate knowledge about the composition and properties of the fluids.
Vinod O. Samuel +3 more
doaj +2 more sources
Depth of slab breakoff in Archean: the role of radiogenic heat production of continental crust and eclogitization of oceanic crust [PDF]
Scientific ReportsThe slab breakoff has been applied to many collisional orogen around the world to explain postcollisional magmatism and metamorphism. For Phanerozoic orogens, multiple lines of evidence indicate that ultrahigh-pressure metamorphic rocks are exhumed from ...
Yin-Long Fan +3 more
doaj +2 more sources
Ultrahigh pressure metamorphism [PDF]
, 2003 Abstract This is the first volume in this series dealing with a petrological subject and contains the contributions of the lectures given at the 5th School of the European Mineralogical Union (EMU) on “Ultrahigh Pressure Metamorphism” held in Budapest from 21 to 25 July 2003.
Carwell D. A. +2 more
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Геодинамика и тектонофизика, 2021 In their research, the authors of the comments have focused on the Late Paleoproterozoic rims of zircons, but ignored many important details of their own data. Their comments are based on a misconception that eclogite zircons have unique geochemical (REE,
M. V. Mints, K. A. Dokukina
doaj +1 more source
Frontiers in Earth Science, 2022 Major and trace element zonation patterns were determined in ultrahigh-pressure eclogite garnets from the Changning-Menglian suture, Bangbing area. Several stages of eclogite metamorphism are recorded by garnet zonation.
Nannan Lu +3 more
doaj +1 more source