The aim of this work is to study the exposure due to the radon of the patients from the dry carbon dioxide baths (mofettas) from Harghita Bãi, Romania. These mofettas consist of emanated gas with high carbon dioxide content, and proved curative effects. The vertical and horizontal distribution of the radon activity concentration was monitored indoor, the seasonal variation, as well as the soil radon and thoron activity concentration outdoor, in

In the Harghita volcanic range (Romania) there are many occurrences of dry CO2 emanations, called mofettes. The emanating gas with high carbon dioxide content has a proved curative effect. The gas also contains important quantities of radon. Since the mofettes are used in curative purposes in several illnesses, in most of the cases without medical supervising, has been proposed to determine the radon activity concentration in some of the most frequented

This paper proves for the first time the existence of a complex distribution of volcanic rock types occurring in the Gurasada region. At the base of these a bentonite deposit crops out in the Gurasada open pit, followed by pyroclastic deposits represented by pyroclastic breccia and rare tuff levels the youngest rocks are lava flows exposed in the Runcşor Hill. Thermometamorphic products represented by hornfels are described here for the first time

The Poiana Botizei--Tibles--Toroiaga--Rodna--Bârgãu intrusive area (PBTTRB), northwest Romania, known as the "Subvolcanic Zone", is located between the Gutâi (NW) and Cãlimani (SE) volcanic massifs. It consists of rocks displaying a wide range of compositions and textures: equigranular or porphyritic with holocrystalline groundmass(gabbro-diorites, diorites, monzodiorites and granodiorites, and/or porphyritic with fine holocrystalline or glassy

The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate. Plio-Quaternary magmatic activity in this area, in close proximity to the ‘Vrancea zone’, shows a shift from normal calc-alkaline to much more diverse compositions (adakite-like calc-alkaline, K-alkalic, mafic Na-alkalic and ultrapotassic), suggesting a significant change in geodynamic

As a result of the rapid advances in technology experienced during the last half of the twentieth century, methods used to study volcanoes have diversified enormously. Such diversification has created the illusion of a rapid advance in volcanology.Indeed, it is undeniable that the types of information and the amount of data available for studying diverse aspects of volcanoes have increased in the last decades, and are very likely to continue their

Volcanology textbooks either use the classical "opening-in-the-ground" definition of a volcano or simply avoid a definition. A possible systemic redefinition of the term volcano is considered in this paper. Starting from the classical Aristotelian requirements of a definition, it is shown that only a definition that is part of a hierarchically organized system of definitions can be accepted. Thus, conceptual constructs should reflect the same type

Volcanoes are extremely effective transmitters of matter, energy and information from the deep Earth towards its surface. Their capacities as information carriers are far to be fully exploited so far. Volcanic conduits can be viewed in general as rod-like or sheet-like vertical features with relatively homogenous composition and structure crosscutting geological structures of far more complexity and compositional heterogeneity. Information-carrying