This study presents the first reconstruction of smelting conditions in 16th- to 18th-century smelters from Miedziana Góra (Holy Cross Mountains, Poland). Based on geochemical (inductively coupled plasma mass spectrometry/emission spectrometry, X-ray fluorescence) and mineralogical analysis (X-ray diffractometry, scanning electron microscopy, probe micro-analysis) historical slags, their chemica...

We consider self-avoiding polygons on the simple cubic lattice with a torsion fugacity. We use Monte Carlo methods to generate large samples as a function of the torsion fugacity and the number of edges in the polygon. Using these data we investigate the shapes of the polygons at large torsion fugacity and find evidence that the polygons have substantial helical character. In addition, we show ...

Relationships between the recrystallized grain size and stress are investigated for experimentally deformed water-added quartz aggregates. For stresses ≥100 MPa there is a variation in measured given stress. This correlates with change c-axis fabric general shear experiments, where samples larger sizes have dominantly prism fabrics smaller basal fabrics. The dislocation creep flow law also ...

• Uranium solubility has been determined in soda-lime aluminosilicate glasses HR-XANES can be used to determine uranium oxidation states glass melt decreases the order U VI > V IV The hexavalent content is a key factor for melts of Na 2 O-CaO-Al O 3 -SiO system with two different Na/Ca ratios was studied at temperatures 1250–1400°C and under various redox conditions. A closed thermochemical rea...

The basic aspects of redox geochemistry are reviewed to provide a useful compendium the connection between aqueous-hydrothermal and igneous realms Earth. description system is intimately coupled knowledge acid-base properties solvent in which exchanges take place. For magmas, then silicate melts, approaches reporting state were so far cantered around sole concept oxygen fugacity, f O 2 . Master...

We apply the Yang-Lee theory of phase transitions to an urn model for the separation of sand. The effective partition function of this nonequilibrium system can be expressed as a polynomial of the size-dependent effective fugacity z. Numerical calculations show that in the thermodynamic limit the zeros of the effective partition function are located on the unit circle in the complex z plane. In...

We establish existence of order-disorder phase transitions for a class of “non-sliding” hard-core lattice particle systems on a lattice in two or more dimensions. All particles have the same shape and can be made to cover the lattice perfectly in a finite number of ways. We also show that the pressure and correlation functions have a convergent expansion in powers of the inverse of the fugacity...

The iron-titanium oxide minerals of three troctolites from the Freetown layered gabbro have been analysed using an electron microprobe. Comparisons of the analyses of the iron-titanium minerals with the data of Buddington and Lindsley (I964) provide temperature and oxygen fugacity information relating to particular magnetite-ilmenite grains. Magnetite-ilmenite grains occurring in different sili...

We present a detailed analysis of the QCD partition function in the Grand Canonical formalism. Using the fugacity expansion we find evidence for numerical instabilities in the standard evaluation of its coefficients. We discuss the origin of this problem and propose an issue to it. The correct analysis shows no evidence for a discontinuity in the baryonic density in the strong coupling limit. T...