Results 11 to 20 of about 2,848 (221)

Rodinian granulites from southern Qiangtang terrane: Implications for tectonic evolution of the Tibetan Plateau

open access: yesSolid Earth Sciences, 2017
Bordered by the Longmu Co-Shuang Hu-Lancangjiang suture zone in the north and east, as well as the Bangong Nujiang suture zone in the south and west, the southern Qiangtang terrane is one of the least-studied blocks in the Tibetan region.
Tingyuan Yuan   +3 more
doaj   +2 more sources

Melt inclusions in migmatites and granulites [PDF]

open access: yesJournal of the Virtual Explorer, 2011
Important advances have been made during the last 15 years in the study of melt inclusions in minerals from migmatites and granulites. Pioneer work on high temperature metapelitic anatectic enclaves in peraluminous dacites from SE Spain has shown that droplets of granitic melt can be trapped by minerals growing during incongruent melting reactions, and
CESARE, BERNARDO   +3 more
openaire   +3 more sources

Fluids in granulites

open access: yes, 2011
Since the discovery of CO2 fluid inclusions in granulites, the role of fluids in the formation of these rocks has been widely studied. Owing to the complexity of the tectono-metamorphic history of granulite terrains, fluid inclusion data alone are not sufficient.
Touret, Jacques L.R.   +1 more
openaire   +3 more sources

Thermal evolution of mafic granulites of Princess Elizabeth Land, East Antarctica

open access: yes, 2021
Outcrops of East Antarctic Shield exposed along the coast of Princess Elizabeth Land (PEL) provide a peek into its Neoproterozoic evolution. The terrain comprises of interleaved pelitic, felsic and mafic granulites.
Shah, Mohd. Y.   +5 more
core   +1 more source

The rare earth element geochemistry of mafic granulites from the Neoarchaean northern marginal zone of the Limpopo Belt

open access: yes, 2022
The granulites of the Northern Marginal Zone of the Limpopo belt, Zimbabwe represent the lower crust of the Zimbabwe Craton. They are predominantly felsic in composition and represent magmas of the tonalite-trondhjemite-granodiorite suite which formed ...
Rollinson, H.
core   +1 more source

Contrasting appinites, vaugnerites and related granitoids from the NW Iberian Massif: insight into mantle and crustal sources [PDF]

open access: yesEuropean Journal of Mineralogy, 2023
Post-collisional Mg–K-rich mafic rocks with associated granitoids appear regularly in most orogens. They are relevant to evaluate the mantle role in the genesis of granitoids and thereby of the continental crust itself. The most characteristic Mg–K mafic
G. Galán   +5 more
doaj   +1 more source

Rare eclogite‐mafic granulite in felsic granulite in Blanský les: precursor of intermediate granulite in the Bohemian Massif? [PDF]

open access: yesJournal of Metamorphic Geology, 2014
AbstractMafic granulite, generated from eclogite, occurs in felsic granulite at Kleť, Blanský les, in the Bohemian Massif. This is significant because such eclogite is very rare within the felsic granulite massifs. Moreover, at this locality, strong interaction has occurred between the mafic granulite and the adjacent felsic granulite producing ...
Štípská, P., Powell,, R, Racek,, M
openaire   +2 more sources

The role of extensional detachment systems in thinning the crust and exhuming granulites: analogies between the offshore Le Danois High and the onshore Labourd Massif in the Biscay/Pyrenean rifts

open access: yesBSGF - Earth Sciences Bulletin, 2021
Large uncertainties remain about the architecture, timing and role of the structures responsible for high degrees of crustal thinning and the exhumation of mid-crustal granulites in the Pyrenean and Biscay rift systems.
Cadenas Patricia   +3 more
doaj   +1 more source

Garnet granulites of Sutam River middle current sutam river (Aldan Shield) as possible indicators of metamorhosed and tectonically displaced Post-Hadean weathering crust

open access: yesЛитосфера, 2017
The article discusses the problem of the nature of high-alumina garnet granulites from Sutam River (Aldan Shield). The studies revealed that the majority of detrital grains have U-Pb age of up to 1.92 Ga; however the zircon grain of 3.94 Ga has been for ...
Marat Z. Glukhovskii   +4 more
doaj   +1 more source

The 3.5 Ga Siurua trondhjemite gneiss in the Archaean Pudasjärvi Granulite Belt, northern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2003
In the Archaean Pudasjärvi Complex the pyroxene-bearing rocks are considered to form a belt, the Pudasjärvi Granulite Belt (PGB). The major rock types of the PGB are meta-igneous mafic and felsic granulites, and trondhjemite gneisses Red alaskites, white
T. Mutanen, H. Huhma
doaj   +1 more source

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