Multiagent system research tries to obtain predictability of social systems whilst preserving autonomy at the level of the individual agents. In this paper, social theory is called upon to propose a solution to this version of the micromacro problem. The use of norms and learning of norms is one possible solution. An implementation of norms and normative learning is proposed and evaluated using...

Compositional data on a range of sulphide and sulphosalt minerals from the hydrothermal vein deposit of Herja in the Baia Mare metallogenic area are presented. The presence of zinkenite, chalcostibite, diaphorite, fülöppite, boulangerite, bournonite, electrum and manganite are confirmed in the Herja ores for the first time. In addition, compositions close to veenite, twinnite and heteromorphite...

Abstract The Ari vent field (AVF) is an ultramafic-hosted seafloor massive sulfide (SMS) deposit in the middle part of Central Indian Ridge. In this paper, we describe detailed mineralogy and geochemistry hydrothermal samples from AVF, which can be classified into Fe–Cu- Cu-rich types based on major minerals. Sulfide mineralisation former type comprises: (1) stage I, early deposition magnetite,...

2005: Responses of Baltic sea-ice and open-water natural bacterial communities to salinity change. – Appl. Experimental evidence on nutrient and substrate limitation of Baltic Sea sea-ice algae and bacteria. – Hydrobiologia (in press). composition and activity of organism assemblages along a salinity gradient in sea-ice subjected to river discharge in the Baltic Sea. (manuscript). Research arti...

Ulug-Sair Au-Bi-Te-Se mineralization is one prospect for native Au in the Western Tuva, and its origin remains debated. Mineralization consists of gold–sulfide–quartz veins host sedimentary rocks (conglomerates, siltstones, shales), quartz–tourmaline, quartz–carbonate–sericite–altered rocks. To determine origin, we examined mineralogical–geochemical features, formation conditions, fluid sources...

Shallow (<1500 mbsl) submarine arc-related hydrothermal systems can host base (Cu), precious (Au) and volatile elements (As, Se, Sb, Te, Tl) in significant quantities. Their wide application the high-tech industry, but a potential eco-toxicological footprint gives them strategic importance. However, processes that concentrate these systems, compared to their mid-ocean ridge counterparts are sti...

• 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...