Results 81 to 90 of about 2,386 (223)

On the pseudomorphing of melt-filled pores in migmatites

Pseudomorphs of melt-filled pores, recognized by their generally cuspate shape, are used as diagnostic for the former presence of partial melt. They are commonly observed in migmatites from the mid- to deep crust although they occur in the smaller ...
Sawyer, E. W., Holness, M. B.
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Oligocene partial melting in the Takab metamorphic complex, NW Iran: Evidence from in situ U-Pb geochronology [PDF]

Journal of Sciences, Islamic Republic of Iran, 2013
U-Pb ages obtained on zircons from the investigated migmatites place new constraints on the evolution of the crustal rocks in the Takab area. SHRIMP U-Pb dating of inherited zircon in the melanosome parts of mafic migmatites from the Takab complex gives ...
M. Moazzen
doaj  

Zircon thermometry and U–Pb ion-microprobe dating of the gabbros and associated migmatites of the Variscan Toledo Anatectic Complex, Central Iberia

, 2016
In the Central Iberian Zone there are several large thermal domes in which small bodies of ultramafic, mafic and intermediate rocks appear intimately associated with crustal granites and migmatites.
J.F. Molina (2845070), J.H. Scarrow (2845067), F. Gonzalez-Lodeiro (2845064), C. Talavera (2845052), P.G. Montero (2845058), M.J. Whitehouse (2844632), F. Bea (2845055), T. Zinger (2845061)   +7 more
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Formation of kyanite-bearing migmatites in the Central Adirondacks

, 2017
Sillimanite-rich, S-type, granitic migmatites exposed at Ledge Mountain represent the only location in the Adirondack Highlands where kyanite has been found. The texturally young kyanite overprints sillimanite in largely undeformed pegmatitic leucosomes,
Jackson Vincent Reeder
core  

Recumbent folding in migmatites in the Archean "basement" north of Nathdwara, Rajasthan, India

, 1962
Structural studies of the migmatites, calc-granulites, and para-amphibolite inclusions of the banded gneiss complex in the vicinity of Nathdwara show the region to be tectonically homogeneous.
K. Naha, Naha, K., S. K. Ghosh, Ghosh, Subir Kumar   +3 more
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The orthogneiss-derived migmatites of the Variscan Ulten Zone, Northeastern Italy: limited magma movement through the lower crust

, 2011
Anatectic melt (or magma) created in migmatites, is potentially mobile (Sawyer, 2008). The Variscan Ulten Zone, on the contrary, provides an example of limited melt transfer within a km-sized lower crust.
Langone A., BRAGA, ROBERTO, Mazza S.
core  

Episodic water-fluxed anatexis recorded by migmatites from the Paleozoic Wuyi-Yunkai Orogeny in South China

The Wuyi-Yunkai Orogeny (WYO) in South China occurred during the assembly of Gondwana, and has abundant granites and migmatites which have been mostly interpreted as products of dehydration anatexis.
Zhao, Jun-Hong, Xue, Er-Kun, Pandit, Manoj K., Wang, Wei, Jun-Hong Zhao, Manoj K. Pandit, David Chew, Xin Deng, Yang Tian, Xi-Run Tong, Tong, Xi-Run, Tian, Yang, Wei Wang, Chew, David, Er-Kun Xue, Deng, Xin   +15 more
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Genesis of metapelitic migmatites in the Adirondack Mts., New York

, 2009
Oxygen isotope ratios and rare earth element (REE) concentrations provide independent tests of competing models of injection v. anatexis for the origin of migmatites from amphibolite and granulite facies metasedimentary rocks of the Adirondack Mountains,
McLelland, J.M., Fu, Bin, Hill, B.M., Lancaster, P.J., Page, F. Zeb, Bickford, M.E., Valley, John W., Kita, Noriko T.   +7 more
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Applications and limitations of thermobarometry in migmatites and granulites using as an example rocks of the Araçuaí Orogen in southern Bahia, including a discussion on the tectonic meaning of the current results

Brazilian Journal of Geology
In southern Bahia, there are outcrops of migmatites and granulites in the Jequitinhonha Complex, which is part of the northern portion of the Araçuaí Orogen.
Renato Moraes, Christian Nicollet, Johildo Salomão Figueiredo Barbosa, Reinhardt Adolfo Fuck, Antônio Rabelo Sampaio   +4 more
doaj   +1 more source

Radiogenic heat production estimation towards sustainable energy drive in northeastern Nigeria. [PDF]

Heliyon, 2023
Yusuf AB, Lim HS, Ahmad Abir I.
europepmc   +1 more source