Abstract The Late Cretaceous Semail ophiolite, Oman was emplaced onto the previously passive continental margin of Arabia. Recent geochronology from the ophiolite, its metamorphic sole, and associated high‐pressure (HP) metamorphic rocks have resulted in a proliferation of new tectonic models explaining the sequence of events associated with ophiolite ...
Michael P. Searle +2 more
wiley +1 more source
Structure of late Variscan Millevaches leucogranite massif in the French Massif Central: AMS and gravity modelling results [PDF]
In the Limousin area, Variscan leucogranitic plutons are spatially associated with normal faults and major strike-slip shear zones that are a continuation of the South Armorican shear zone. Our study focuses on the large N-S-trending Millevaches granitic
Arthaud +46 more
core +4 more sources
Significance of Leucogranitic Gneiss in the Archean Teton Range
In previous years of this project, we have developed the hypothesis that the high-pressure granulites exposed in the Moose Basin area of the Teton Range represent evidence of a 2.7 billion yearÂold continent-continent collision. We have described gneisses in the Teton Range that show two distinct metamorphic histories. In the northwest there are highÂ
B. Frost +4 more
openaire +2 more sources
Mineralization at Different Structural Levels in the Crust
Abstract Metallogenic research on structural levels can reveal vertical patterns of mineralization and facilitate the deep exploration of economic minerals. However, research focusing on the correlation between structural levels and mineralization remains limited.
Saisai LI, Hongrui ZHANG, Zengqian HOU
wiley +1 more source
Géochronologie revisitée du dôme du Léon (Massif armoricain, France) [PDF]
National audienceDe nouvelles datations réalisées sur les principaux ensembles granitiques et métamorphiques du Léon permettent de préciser l'histoire de ce domaine de la chaîne hercynienne.
Cocherie, Alain +4 more
core +1 more source
Some progress on understanding the Phanerozoic granitoids in China
: There are large volumes of the Phanerozoic granitoid rocks in China and neighboring areas. In recent years, numerous new and precise U-Pb zircon ages have been published for these granitoids, and define many important magmatic events, such as ca.
Tao Wang +8 more
doaj +1 more source
Metamorphism and plutonism in the Quetico Belt, Superior Province, N.W. Ontario [PDF]
The Quetico Belt lies between the metavolcanic Wawa-Shebandowan and Wabigoon Belts. It consists of marginal metasedimentary rocks and central pelitic, gneissic and plutonic rocks.
Percival, J. A.
core +1 more source
Magma viscosity is strongly temperature-dependent. When hot magma flows in a conduit, heat is lost through the walls and the temperature decreases along the flow causing a viscosity increase. For particular values of the controlling parameters the steady-
Costa, Antonio, Macedonio, Giovanni
core +1 more source
A multidisciplinary study of a syntectonic pluton close to a major lithospheric-scale fault: relationships between the Montmarault granitic massif and the Sillon Houiller Fault in the Variscan French Massif Central. Part I: Geochronology, mineral fabrics and tectonic implications [PDF]
International audienceDue to its location along one of the major faults, the Sillon Houiller Fault (SHF) of the French Massif Central (FMC), the Montmarault granitic pluton is well-suited to better understand the place of the late-orogenic magmatism in ...
Chen, Yan +3 more
core +3 more sources
Anomalously old biotite 40Ar/39Ar ages in the NW Himalaya [PDF]
Biotite 40Ar/39Ar ages older than corresponding muscovite 40Ar/39Ar ages, contrary to the diffusion properties of these minerals, are common in the Himalaya and other metamorphic regions.
Grujic, Djordje +6 more
core +1 more source

