Uma síntese sobre o magmatismo alcalino do Paraguai Oriental [PDF]
Brazilian Journal of Geology, 2013 Alkaline magmatism occurs in six distinct areas of Paraguay and forms bodies of variable size, shape, composition and age. The oldest rocks are found in the north and correspond to the Permo-Triassic Alto Paraguay Province (241 Ma). Four Early Cretaceous
Chiaramonti, Piero Comin- +2 more
core +3 more sources
Marcasite at the Permian‐Triassic Transition
Geophysical Monograph Series, Page 377-399., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva +7 more
wiley +8 more sources
Magmatic sulfides in high-potassium calc-alkaline to shoshonitic and alkaline rocks [PDF]
Solid Earth, 2020 Abstract. We investigate the occurrence and chemistry of magmatic sulfides and their chalcophile metal cargo behaviour during the evolution of compositionally different magmas from diverse geodynamic settings both in mineralised and barren systems. The investigated areas are the following: (a) the Miocene Konya magmatic province (hosting the Doğanbey ...
Georgatou, Ariadni Afroditi +1 more
openaire +7 more sources
Mantle xenolith‐bearing Maastrichtian to Tertiary alkaline magmatism in Oman [PDF]
Geochemistry, Geophysics, Geosystems, 2003 Mantle xenolith‐bearing alkali basalts, basanites and tephrites with 1.5–2 K2O and 4–5 wt% Na2O occur as small (<100 m) plugs and dikes in the Batain and Haushi‐Huqf areas, and WNW of Muscat. Their black color and the common presence of peridotite xenoliths allow a separation from older alkaline rocks and from the ophiolitic extrusive rocks.
Edwin Gnos, T. J. Peters
openalex +4 more sources
Геодинамика и тектонофизика, 2022 The intraplate alkaline-granite magmatism essentially contributes to formation of rare-metal strategic raw materials. In the Major Sayan Fault of the East Sayan Mountains, the rocks of the Zashikhinsky (Pz3) massif were studied through the isotope ...
N. V. Alymova +3 more
doaj +1 more source
Tertiary-Quaternary subduction processes and related magmatism in the Alpine-Mediterranean region [PDF]
, 2006 During Tertiary to Quaternary times, convergence between Eurasia and Africa resulted in a variety of collisional orogens and different styles of subduction in the Alpine-Mediterranean region.
Downes, Hilary +2 more
core +1 more source
The Upper Triassic alkaline magmatism in the NW Iberian Chain (Spain).
Journal of Iberian Geology, 2014 We have carried out a complete study of the Upper-Triassic alkaline magmatism on the northwestern margin of the Iberian Chain. This magmatism is composed of mafic sills, which intrude the Keuper facies in two geographic sectors: the Cameros Massif (NW) and the Moncayo Massif (SE).
Tomás Sanz +8 more
openalex +6 more sources
Magmatic carbon outgassing and uptake of CO2 by alkaline waters [PDF]
American Mineralogist, 2020 AbstractMuch of Earth's carbon resides in the “deep” realms of our planet: sediments, crust, mantle, and core. The interaction of these deep reservoirs of carbon with the surface reservoir (atmosphere and oceans) leads to a habitable surface environment, with an equitable atmospheric composition and comfortable range in temperature that together have ...
Yves Moussallam +4 more
openaire +5 more sources
Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]
, 2010 The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Alexandru Szakács +112 more
core +2 more sources
Post-collisional Tertiary–Quaternary mafic alkalic magmatism in the Carpathian–Pannonian region: a review [PDF]
, 2004 Mafic alkalic volcanism was widespread in the Carpathian–Pannonian region (CPR) between 11 and 0.2 Ma. It followed the Miocene continental collision of the Alcapa and Tisia blocks with the European plate, as subduction-related calc-alkaline magmatism was
Albarede +75 more
core +1 more source