Results 11 to 20 of about 241 (183)
The Kongur-Muztaghata-Maeryang terrane in NE Pamir is considered to be the western extension of the Songpan-Ganze terrane located in the northern Tibetan Plateau. The Kongur-Muztaghata gneiss dome (KMGD) is situated in the north while the Maeryang gneiss
Zhiqin Xu +8 more
doaj +1 more source
On the Initiation of Metamorphic Sulfide Anatexis [PDF]
Mineral assemblages in common sulfide ore deposits are examined together with phase relations to (1) investigate the pressure^ temperature conditions required for the onset of metamorphically induced partial melting involving economic minerals, and (2) place constraints on the amount of melt produced.
A. G. Tomkins +2 more
openaire +1 more source
Introduction Granitoids are the main rock units in the continental crust. Study of granitoids reveals significant information on tectonic mantle and upper crust.
Ramin Samadi +2 more
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Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
SHRIMP and LA-ICP-MS analyses carried out on zircons from the Río de los Sauces granite revealed their metamorphic and igneous nature. The metamorphic zircons yielded an age of 537±4.8 (2σ)Ma that probably predates the onset of the anatexis during the ...
F.J. D’Eramo +5 more
doaj +3 more sources
Genesis of the Eastern Adamello Plutons (Northern Italy): Inferences for the Alpine Geodynamics
The Corno Alto–Monte Ospedale magmatic complex crops out at the eastern border of the Adamello batholith, west of the South Giudicarie Fault (NE Italy).
Alessio Relvini +6 more
doaj +1 more source
On the ages of some granitoid and schist complexes in northern Finland [PDF]
Contact observations and most radiometric datings indicate that the large complex of granitoid rocks and migmatites in Central Lapland is late Svecokarelian (Proterozoic) in age. The geological setting of the complex suggests, however, that it previously
R. Lauerma
doaj +1 more source
[Objective] In the Shuanglong area of the eastern Qinling region, a large number of granitic pegmatites occur within the Qinling Group in the North Qinling orogenic belt.
HUANG Danfeng +3 more
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Isotopic disequilibrium during the formation of high-temperature (HT) metamorphic complexes by anatexis during continental collision is a process that deserves intense discussion since it is fundamental to understand the evolution of continental crust ...
Joana Alexandra Ferreira +3 more
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Experimental Constraints on Hercynian Anatexis in the Iberian Massif, Spain [PDF]
We have studied experimentally the melting relationships of the Ollo de Sapo gneiss (OSG), an important crustal protolith for the Iberian leucogranites, of possible volcanoclastic origin. The results of this study are compared with previously determined PTt paths, allowing us to interpret the mechanisms of melting and granitoid production during the ...
Castro, A. +5 more
openaire +2 more sources
We report information on the protolith, the Triassic retrograde metamorphism, and anatexis recorded in zircons extracted from granitic gneiss and biotite schist in the Sulu orogenic zone, central China.
Yongkang Ye +4 more
doaj +1 more source

