Results 131 to 140 of about 22,040 (302)

U-Pb SHRIMP and Sm-Nd geochronology of the Silvânia Volcanics and Jurubatuba Granite: juvenile Paleoproterozoic crust in the basement of the Neoproterozoic Brasília Belt, Goiás, central Brazil

Anais da Academia Brasileira de Ciências, 2001
U-Pb SHRIMP and Sm-Nd isotopic ages were determined for felsic metavolcanic rocks from the Silvânia Sequence and Jurubatuba Granite in the central part of the Brasília Belt.
FISCHEL DANIELLE P., PIMENTEL MÁRCIO M., FUCK REINHARDT A., ARMSTRONG RICHARD   +3 more
doaj  

The 1984 NASA/ASEE summer faculty fellowship program [PDF]

An overview is given of the program management and activities. Participants and research advisors are listed. Abstracts give describe and present results of research assignments performed by 31 fellows either at the Johnson Space Center, at the White ...
Crow, B., Duke, M. B., Mcinnis, B. C.
core   +1 more source

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

Hydration processes in the arc mantle; petrology of the Megata peridotite xenoliths, the Northeast Japan arc.

, 1992
Natsue Abe, Shoji Arai, Yasuhiro SAEKI
openalex   +2 more sources

Considerações acerca de um xenólito ocorrente em corpo ultrabásico de Liberdade, MG [PDF]

Anuário do Instituto de Geociências, 1977
Maria Suzana Pessoa de Souza, Pedro Victor Zalán   +1 more
doaj  

Long-lived Paleoproterozoic eclogitic lower crust. [PDF]

Nat Commun, 2021
Buntin S, Artemieva IM, Malehmir A, Thybo H, Malinowski M, Högdahl K, Janik T, Buske S.   +7 more
europepmc   +1 more source

Helium isotopic composition of mantle xenoliths from the western Eger rift, Czech Republic [PDF]

, 2005
Samuel Niedermann, Horst Kämpf, Wolfram Geissler   +2 more
openalex  

Metasomatic Vein Formation by Stationary Fluids in Carbonate Xenoliths at the Eastern Margin of the Bergell Intrusion, Val Sissone, Italy [PDF]

, 2019
Florence Bégué, Lukas P. Baumgartner, Thomas Müller, Benita Putlitz, Torsten Vennemann   +4 more
openalex   +1 more source

Crustal growth: Some major problems [PDF]

Fundamental problems with models currently used to explain the genesis and evolution of continental crust were raised. These problems focus around the difficulty of generating the upper continental crust from a lower crustal or mantle protolith without ...
Arculus, R. J.
core   +1 more source

Oxygen isotope (δ¹⁸O, Δ'¹⁷O) insights into continental mantle evolution since the Archean. [PDF]

Nat Commun, 2022
Bindeman IN, Ionov DA, Tollan PME, Golovin AV.   +3 more
europepmc   +1 more source