Abstract. Discovering ore deposits is becoming increasingly difficult, and this particularly true in areas of glaciated terrains. As a potential exploration tool for such terrains, we test the vectoring capacities trace element sulfur isotope characteristics pyrite, combined with quantitative statistical methods whole-rock geochemical datasets. Our target Rajapalot gold–cobalt project northern ...

Pyrite formation at low temperature during early diagenesis in (sub-)surface sediments is an essential step of Fe and S biogeochemical cycles the presence this ubiquitous mineral surface environments often used as indicator paleo-redox conditions. Pathways pyrite are usually discussed environmental settings by involving a variety nanosized Fe-S mineralogical precursors function local geochemica...

The global distribution of the reflectivity of the surface of Venus as determined by the Pioneer Venus orbital radar instrument has been analyzed in a geological context and statistically correlated with elevation. In addition, a comparison between the reflectivity and rms slope (roughness) correlations with elevation permits radar-geologic topographic zones to be identified. The radar reflecti...

• Pyrites from VMS deposits of the Iberian belt host NPs. Colloform pyrite contains mainly As–Fe–Pb–Cu Euhedral stockwork hosts Au Transport and precipitation metallic NPs by polymetallic melts. This paper reports first-ever study on nanoscale mineralogy in volcanogenic massive sulfide (VMS) Pyrite Belt, southwestern Peninsula. It targeted colloform-textured grains formed at low temperature dis...

Medium 2 was similar to Medium 1 except for the replacement of sodium lactate by sodium benzoate (0.75 9). Sterile culture flasks (500ml) were filled to the brim with freshly prepared sterile Medium 1 and 2 separately, inoculated with a suspension of freeze-dried Desulfovibrio N.C.I.B. 8399, capped with sterile Suba-Seal rubber stoppers and incubated by total immersion in a water bath at 37°C. ...

A lthough cosmetics, from Greek kósmesis (adorn), now refers to external products used to beautify the skin, hair, eye, or other parts of the body, cosmesis was not the first objective of primitive eye painting. The first aim of body painting in primitive cultures may have been to protect people from evil spirits, which could enter their body through vulnerable openings, such as the eyes. The s...

Jones and Crowe (1) raise issues already addressed in our article (2) based on an inaccurate grasp of the literature and several logical misconceptions. The authors suggest that inputs we chose in our kinetic calculations are unsuitable because we used values only from the Black Sea. As described, we made an extremely conservative estimate because the Black Sea is the most rapid Mn-oxidizing en...

Recent studies argue that subduction-modified, Cu-fertilized lithosphere controls the formation of porphyry Cu deposits in orogenic belts. However, it is unclear if and how this fertilization process operates at cratonic edges, where numerous large non-arc Au-rich deposits form. Here we report data from lower crustal amphibolite and garnet amphibolite xenoliths hosted by Cenozoic stocks that ar...

Although chemistry is widely considered among its practitioners to be a modern science, technological processes based on chemical reactions have been in standard use from the distant past. The production of salts, dyes and paints, cosmetics, and fermented beverages made use of techniques and reactions common to chemical experimentation (such as filtration, dissolution, and sublimation). Among t...