Monazite and rutile occurring in hydrothermally altered W mineralizations, the Echassières district of French Massif Central (FMC), were dated by U-Pb isotopic systematics using in-situ Laser ablation-inductively coupled plasma–quadrupole mass spectrometry (LA-ICP-MS). The resulting dates record superimposed evidence for multiple percolation mineralizing fluids same area. Cross-referencing thes...

Abstract The recently discovered massive and stockwork sulphide mineralization of Semblana-Rosa Magra Monte Branco, situated ESE the Neves–Corvo volcanogenic (VMS) deposit in Iberian Pyrite Belt (IPB) is presented. Geological setting tectonic model discussed based on proxies such as palynostratigraphy U–Pb zircon geochronology. found within IPB Volcano-Sedimentary Complex (VSC) Lower sequence, ...

The Bay St. George sub-basin of SW Newfoundland, part the larger late Paleozoic Maritimes basin, formed under influence strike-slip faulting and movement evaporites. New stratigraphic correlations between Newfoundland other sub-basins illustrate effects both basement salt movement. Coastal outcrops show complex combinations synsedimentary, salt-related, tectonic structures. Map relationships dr...

Foraminiferal revision of the Holkerian Stratotype Britain at Barker Scar, Holker Hall, south Cumbria, UK, allows subdivision section into Cf4?, Cf5? and Cf5? subzones (the latter being further subdivided lower Cf5?1 upper Cf5?2 intervals). The base subzone bed C from middle part C, occur 14 m 10.5 m, respectively, below traditional basal boundary K. boundaries these foraminiferal within main i...

Kersantite is the international designation for hypabyssal lamprophyres essentially made up of dark micas and plagioclase. Kersantites from type locality (Kersanton hamlet) W-Armorican surrounding area are Serpukhovian/Bashkirian in age. They systematically associated field with microgranodiorites, both types being intruded synchronously as syn-compressional magmatic bodies that postdated pre-t...