Clear demonstrations of detailed sequences of thrust development are rare, particularly with respect to hindward-imbricating successions. Similarly, well-constrained chronologies of the timing of multiple thrust motions and associated rates of shortening are also uncommon. Along the eastern oblique ramp of the South-Central Unit (SCU) of the Pyrenees, well-exposed structural geometries and cros...

The boundary between the African and Arabian plates in the Southern Red Sea region is displaced inland in the northern Afar rift, where it is marked by the Red Sea-parallel Erta Ale, Alaita, and Tat Ali volcanic ridges. The Erta Ale is offset by about 20 and 40 km from the two en echelon ridges to the south. The offset area is highly seismic and marked by a depression filled by lake Afrera, a s...

Seismological observations show that many destructive earthquakes nucleate within, or propagate through, thick sequences of carbonates and evaporites. For example, along the Apennines range (Italy) carbonate and evaporite sequences are present at hypocentral depths for recent major earthquakes (5.0oMwo6.3). However, little is known about the frictional properties of these rocks, which are domin...

During orogenesis, large-scale thrusts as orogenic fronts can act conduits and/or barriers for fluid flow. Unravelling the timing and modes of tectonic activation faults is crucial to understanding relationship between flow deformation. The North Pyrenean Frontal Thrust (NPFT) corresponds a major basement-involved thrust responsible northward overthrust pre-orogenic sediments on top Aquitaine F...

The Raja Au-Co mineralization in the Paleoproterozoic Peräpohja belt northern Finland is part of wider Rompas-Rajapalot mineralized area with several known occurrences. characterized by distinct tourmaline occurrences, spatially associated mineralization. Four texturally types were identified although all analysed tourmalines belong to alkali-group and are classified as dravite. δ 11B values fr...

The late Paleozoic was characterized by a series of continental collisions and ice ages. Despite the drastic environmental changes, sparse sulfur isotope data hinder our understanding biogeochemical cycle, especially during Early Permian. To overcome this potential bias, we present high-resolution record carbonate-associated sulfate (CAS) pyrite from Carboniferous-Permian successions Svalbard a...

Abstract In this study, an attempt was made to understand the hydrogeochemical processes controlling water resources (surface and groundwater) evolution in El Fayoum depression, Egypt. Hydrochemical, inverse geochemical modeling integrated with environmental isotopes applied. Forty-three surface groundwater samples were collected analyzed for major chemistry (cations, anions) stable (δ 18 O, δD...