Fluids along the North Anatolian Fault, Niksar basin, north central Turkey: Insight from stable isotopic and geochemical analysis of calcite veins

From Early Contraction to Post-Folding Fluid Evolution in the Frontal Part of the Bóixols Thrust Sheet (Southern Pyrenees) as Revealed by the Texture and Geochemistry of Calcite Cements

“…Likewise, the type and origin of fluids can be unraveled [21][22][23], and thus decipher if the fluids that formed the different veins flowed locally in a closed paleohydrogeological regime [24][25][26] or in a relatively open system with possible interaction between fluids from different sources [16,27]. Studies integrating the evolution of fracture systems and related cements are needed to constrain the fluid-flow history of an area during orogenic growth and, therefore, understand the nature and origin of fluids that circulate through time, the diagenetic process evolution, changes in reservoir properties such as porosity and permeability and the distribution of minerals and hydrocarbons [28,29].During recent years, the interest in this topic has significantly increased [30][31][32][33], giving rise to many new studies that have tackled this topic in compressional, extensional and strike-slip tectonic settings worldwide. Some recent examples are from the Ionian fold and thrust belt in Albania [22,34,35], the Apennines [36-40], the Alps [41,42], the Zagros Mountains [43], the Sicilian belt [44], the Oman Mountains [45-48], the Catalan Coastal Range [49-53] and the Pyrenees [16,17,19,24,[54][55][56][57].…”

“…During recent years, the interest in this topic has significantly increased [30][31][32][33], giving rise to many new studies that have tackled this topic in compressional, extensional and strike-slip tectonic settings worldwide. Some recent examples are from the Ionian fold and thrust belt in Albania [22,34,35], the Apennines [36-40], the Alps [41,42], the Zagros Mountains [43], the Sicilian belt [44], the Oman Mountains [45-48], the Catalan Coastal Range [49-53] and the Pyrenees [16,17,19,24,[54][55][56][57].…”

Geochemistry of Fluid Inclusions in Travertines From Western and Northern Turkey: Inferences on the Role of Active Faults in Fluids Circulation

“…The second hypothesis implies different fracture systems responsible for the travertine formation and hot springs circulation. If we assume that seismic activity enhances fracturing and increases permeability (e.g., Sturrock et al, , and references therein), the first hypothesis would imply that fractures in which travertines formed were not active during the precipitation or the fracture formation was associated to low‐magnitude and shallow seismicity with little effect on the permeability changes. However, there are no evidences in the area of a spatial and/or temporal variability in fluid composition of the hot springs, which could lead to argue for the presence of different fracture systems.…”

Fingerprinting Fluid Source in Calcite Veins: Combining LA-ICP-MS U-Pb Calcite Dating with Trace Elements and Clumped Isotope Palaeothermometry

“…Barker and Cox, 2011;Bongiolo et al, 2011); and 3) reconstructing fluid flow pathways responsible for seismicity (e.g. Uysal et al, 2011;Nuriel et al, 2017;Sturrock et al, * john.macdonald.3@glasgow.ac.uk 2017; Nuriel et al, 2019;Weinberger et al, 2020;Craddock et al, 2022). Evidence of palaeofluid flow through fractures is recorded by the presence of veins (Ramsay and Huber, 1983) and application of geochemical proxies to vein minerals -particularly calcite -can enable reconstruction of fluid sources.…”