[HTML][HTML] The Mid-Variscan Allochthon: Keys from correlation, partial retrodeformation and plate-tectonic reconstruction to unlock the geometry of a non-cylindrical belt
The non-cylindrical character of the Variscan Belt is established via a description of its most
salient geological characteristics and correlations among the main and relatively minor …
salient geological characteristics and correlations among the main and relatively minor …
Smectite-illite-muscovite transformations, quartz dissolution, and silica release in shales
PC van de Kamp - Clays and Clay Minerals, 2008 - cambridge.org
Quantitative analysis of the smectite-to-illite and illite-to-muscovite transformations indicates
that 17–28 wt.% SiO2 and 17–23 wt.% SiO2, respectively, are liberated during these …
that 17–28 wt.% SiO2 and 17–23 wt.% SiO2, respectively, are liberated during these …
Delimiting geochemical anomalies in the exploration of covered deposits with multifractal methods and using stream sediment data from the Iberian Pyrite Belt …
Abstract The Iberian Pyrite Belt (IPB) is a world-class province of Upper Paleozoic age for
volcanic-and shale-hosted massive sulfides that includes 5 of the 10 supergiant (> 150 Mt) …
volcanic-and shale-hosted massive sulfides that includes 5 of the 10 supergiant (> 150 Mt) …
Cu-and Zn-soil anomalies in the NE border of the South Portuguese Zone (Iberian Variscides, Portugal) identified by multifractal and geostatistical analyses
Abstract Extensive Cu-and Zn-soil geochemical data in the Albernoa/Entradas–S. Domingos
region (NE border of the Iberian Pyrite Belt, South Portuguese Zone) were examined to …
region (NE border of the Iberian Pyrite Belt, South Portuguese Zone) were examined to …
The Beja layered gabbroic sequence (Ossa-Morena Zone, Southern Portugal): geochronology and geodynamic implications
The Beja Igneous Complex (BIC) is a major geological feature in SW Iberian Variscides,
consisting of three main units developed during different stages of the oblique collision …
consisting of three main units developed during different stages of the oblique collision …
Black shales and massive sulfide deposits: causal or casual relationships? Insights from Rammelsberg, Tharsis, and Draa Sfar
R Sáez, C Moreno, F González, GR Almodóvar - Mineralium Deposita, 2011 - Springer
Black shales and massive sulfides represent reduced lithofacies that require isolation from
oxic environments to be preserved. This, together with the sedimentary affinity of both …
oxic environments to be preserved. This, together with the sedimentary affinity of both …
Experimental demonstration of a semi-brittle origin for crustal strain transients
Tectonic motions give rise to destructive earthquakes and transient slip events. These
movements are often described by friction laws for stick–slip motion on brittle fault surfaces …
movements are often described by friction laws for stick–slip motion on brittle fault surfaces …
The pioneer work of Bernard Kübler and Martin Frey in very low-grade metamorphic terranes: paleo-geothermal potential of variation in Kübler-Index/organic matter …
Low-temperature metamorphic petrology occupies the P–T field between sedimentary and
metamorphic petrology. Two important pillars of low-temperature metamorphism are coal …
metamorphic petrology. Two important pillars of low-temperature metamorphism are coal …
A case study of the internal structures of gossans and weathering processes in the Iberian Pyrite Belt using magnetic fabrics and paleomagnetic dating
Abstract In the Rio Tinto district of the Iberian Pryrite Belt of South Spain, the weathering of
massive sulfide bodies form iron caps, ie, true gossans and their subsequent alteration and …
massive sulfide bodies form iron caps, ie, true gossans and their subsequent alteration and …
Retrograde diagenesis, a widespread process on a regional scale
Pelitic and basic rocks occurring within prograde sequences in Portugal, Spain and Hungary
have been studied by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) …
have been studied by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) …