Results 101 to 110 of about 5,714 (221)

Xenolith Zircons Record the Long Geological History of India‐Asia Convergence: Results From U‐Pb Depth Profiling

Geophysical Research Letters
Continental crust forms in magmatic arcs and transforms through collision, as seen in the Tibetan crust shaped by Neo‐Tethyan subduction and India‐Asia collision.
Wen‐Rui Sun, Roberto Weinberg, Rui Wang, Li Liu, Liang‐Liang Zhang   +4 more
doaj   +1 more source

Heat transfer by fluids in granulite metamorphism

, 1988
The thermal role of fluids in granulite metamorphism was presented. It was shown that for granulites to be formed in the middle crust, heat must be advected by either magma or by volatile fluids, such as water or CO2.
Morgan, Paul, Ashwal, Lewis D.
core  

Low H2O activity of fluid in mafic granulite in far-eastern Nepal (forecast)

, 2012
2012-03The P-T-XH2O condition of mafic granulite in far-eastern Nepal has been investigated using multi-equilibrium thermobarometry. Based on retrograde zoning in amphiboles and the amphibole + plagioclase symplectite surrounding garnet and clinopyroxene,
今山, 武志, Imayama, Takeshi
core   +1 more source

P-T-t evolution of ultrahigh-temperature granulites from the Saxon Granulite Massif, Germany : Part II: Geochronology

, 2001
Granulite-facies metamorphism in the structurally lower part of the Saxon Granulite Massif ...
Romer, Rolf L. (Prof. Dr.), Rötzler, Jochen   +1 more
core  

Granulite Facies Metamorphism in the Coast Range Crystalline Belt

, 1975
Mineral assemblages diagnostic of the granulite facies of metamorphism occur between Terrace and Prince Rupert, British Columbia. The estimated pressure (5–8 kb) and temperature (750–850 °C) of metamorphism are important constraints in unravelling the ...
Lincoln S. Hollister
core   +1 more source

Sm-Nd Garnet Ages for Granulite and Eclogite in the Breaksea Orthogneiss and Widespread Granulite Facies Metamorphism of the Lower Crust, Fiordland Magmatic Arc, New Zealand

, 2017
Sm-Nd garnet and U-Pb zircon ages for eclogite and granulite from the Breaksea Orthogneiss provide a detailed chronology for pluton emplacement and subsequent thermal history of the lower arc crust exposed in Fiordland, New Zealand.
Stowell, Harold H., Hout, C., Tulloch, A. J., Klepeis, K. A., Schwartz, J. J., Koenig, A.   +5 more
core  

~990 Ma peak granulitic metamorphism and amalgamation of Oaxaquia, Mexico: U–Pb zircon geochronological and common Pb isotopic data

Revista Mexicana de Ciencias Geológicas, 2018
The ~1 Ga Oaxacan Complex is the largest exposure of the Oaxaquia terrane of Mexico. Microprobe analysis of co-existing ortho- and clino-pyroxene, garnet, ilmenite and plagioclase indicate metamorphic conditions of 735 ± 5° C and 7.7 ± 0.1 kbar in the ...
Luigi A. Solari, J. Duncan Keppie, Fernando Ortega-Gutiérrez, Kenneth L. Cameron, Robert Lopez   +4 more
doaj  

Partial melting. granulite facies metamorphism and the evolution of the continental crust

Partial melting. granulite facies metamorphism and the evolution of the continental crust. The basement of the continents is made up largely of rocks that have partially melted at deep levels in ancient mountain belts.

core  

Influence of Measurement Uncertainty in the Determination of Selected Rock Parameters-A Realistic Approach. [PDF]

Materials (Basel), 2023
Voit K, Zeman O, Gappmaier P, Wriessnig K, Adamcova R.   +4 more
europepmc   +1 more source

Copper isotope evidence for sulfide fractionation and lower crustal foundering in making continental crust. [PDF]

Sci Adv, 2023
Liu SA, Rudnick RL, Liu WR, Teng FZ, Wu TH, Wang ZZ.   +5 more
europepmc   +1 more source