Abstract Orogenic degassing is emerging as a potentially relevant source of carbon dioxide (CO 2 ) from the continental crust. However, processes mobilization are still poorly explored. Here, we use thermodynamic modeling to investigate decarbonation sediments metamorphosed under high geothermal gradients. Our shows that immiscible CO -rich vapors and hydrosaline brines generated at these condi...

Magmatism between 1.3 and 0.9 Ga at the southwestern margin of Fennoscandia, comprising mainly granitic batholiths subordinate bimodal volcanic rocks, provides a nearly continuous magmatic record Fennoscandian tectonic evolution. Here, we present new published zircon Hf, K-feldspar Pb whole-rock Sr isotopic data from rocks. The ?Hf evolution since 1300 Ma starts out as relatively juvenile, with...

The İstanbul-Zonguldak Tectonic Unit is regarded as the easternmost fragment of Avalonia-Carolina and stands for Far East Avalonia. Its stratigraphy also characterized by discontinuous sedimentation from Late Ediacaran to Carboniferous. In western part block, known İstanbul Terrane, Gözdağ Formation represented lagoonal sedimentary rocks consisting shale-sandstone with limestone Middle Ordovici...

The sources of the Paleocene London Basin marine to fluviodeltaic sandstones are currently unclear. High analysis number detrital zircon U-Pb age investigation an early-mid Thanetian sand from East Kent, reveals a large spread peaks indicative range primary sources. In particular, strong Ediacaran peak is associated with Cadomian Orogeny, while secondary represent Caledonian and various Mesopro...

Abstract Dispersion and deformation of cratonic fragments within orogens require weakening the craton margins in a process decratonization. The orogenic Borborema Province, NE Brazil, is one several Brasiliano/Pan-African late Neoproterozoic that led to amalgamation Gondwana. A common feature these period extension opening narrow oceans preceded inversion collision. For case São Francisco Crato...