Dating and geochemistry of zircon and apatite from rhyolite at the UNESCO geosite Rupnica (Mt. Papuk, northern Croatia) and the relationship to the Sava Zone

The Rupnica geosite, a key locality of the UNESCO-protected Papuk Geopark in northern Croatia, is well-known for an excellent exposure of columnar jointing in volcanic rock. This rock is defined as an albite rhyolite that comprises almost pure albite phenocrysts within a fine-grained matrix composed of microphenocrysts of albite, quartz and devitrified volcanic glass. Primary accessory minerals are clinopyroxene, apatite, zircon and magnetite. Haematite, apatite and anatase were found as inclusions in zircon. The albite rhyolite is characterized by a highly siliceous, peraluminous, oxidized (ferroan), dry, alkali-calcic to alkalic composition, with low CaO, MgO, and MnO contents and high FeOT/(FeOT+MgO) ratios. Normalized trace element contents display positive anomalies of K, Pb, and Zr as well as negative anomalies of Nb, P, Ti, Ba and Eu, together with an enrichment of light rare-earth elements (REE) relative to heavy REE. Zircon from the rhyolite of Rupnica is characterized by ratios of Th/U=1.13 and Zr/Hf=55 and contents of HfO2=1.04 wt. % typical for an early-stage igneous zircon crystallized from a dry high-temperature magma in a deep magma chamber. Apatite REE patterns show enrichment of light REE over heavy REE and a pronounced Eu anomaly, typical for apatite from granitoids formed in an oxidizing environment. The magma is of A-type and was generated at high temperatures at 800–900 °C by partial melting of lower- to mid-crustal rocks. The age of the albite rhyolite of Rupnica is Late Cretaceous at 80.8±1.8 (2σ) Ma, according to U-Pb dating of zircon, coeval with geochemically similar igneous rocks of Mt. Požeška Gora and Mt. Kozara within the Sava Zone

Preliminary results on degree of thermal alteration recorded in the eastern part of Mt. Papuk, Slavonia, Croatia

Samples from the Radlovac metamorphic complex, together with others from the overlying sedimentary rocks, and parts of Psunj metamorphic complex beneath it were studied in order to better constrain metamorphic conditions that have prevailed in the area. Rocks from Mt. Papuk were investigated, in order to determine thermal conditions, by Kübler index (illite “crystallinity”) and Árkai index (chlorite “crystallinity”) while the b0-parameter of K-white mica was used to estimate the pressure conditions. Treatment with dimethyl-sulfoxide (DMSO) was used in order to extend application of chlorite “crystallinity” measurements to kaolinite bearing samples. Results suggest temperatures between 250–300°C and pressures of 2–3 kb. Similar temperature data recorded from various lithologies implies the existence of a previously unknown post lower Triassic thermal event, (Alpine very low to low-grade metamorphism) affecting different complexes on Mt. Papuk. New data presented and discussed in this paper provides the basis for further research and interpretation of the tectono-metamorphic history of the studied area and its correlation with other similar European metamorphic complexes

TRAGOVI METALA U TLU, KORI I LIŠĆU KAO POSLJEDICA RATNIH ZBIVANJA (PRIMJER PRAŠUME PRAŠNIK, HRVATSKA)

As a special forest vegetation reserve, the Prašnik rain forest is a highly protected area which owes its protection not only to a unique composition of trees, but also to its geographical position and, to an extent, historical events. It is situated on the Sava River left bank, north of the city of Stara Gradiška (cca. 3 km). The study area belongs to the southwestern part of Pannonian Basin, specifically the Sava Depression. The aim of this study was to assess a possible impact of war activities in Croatia (23 years ago) when numerous mines were laid in this region and to establish a major and trace metal baseline concentrations for future investigations. Ten topsoil (S) samples were taken randomly with adjacent vegetation (bark and leaves) at each site. Major and trace metal concentrations were measured for all three types of samples using the ICP method. Analysed soils are composed of quartz, micaceous mineral, 14Å mineral, plagioclase and mixed layer minerals. All metal values in the sample taken from an ex-mine crater are 2-4 times higher compared to other. Generally, positive statistically significant Kendall’s Tau correlation coefficients of trace metals (Cd, Cr, Cu, Ni, and Zn) were found for all combinations of the S (soil), B (bark), and L (leaf) groups. Such results indicate that the war activity have played a certain role in a distribution pattern of soil as well as vegetative trace metal levels.Prašuma Prašnik kao poseban rezervat šumske vegetacije visoko je zaštićeno područje, ali ne samo zbog jedinstvenoga sastava drveća, već zahvaljujući i geografskomu položaju te u određenoj mjeri povijesnim zbivanjima. Nalazi se na lijevoj obali rijeke Save, oko 3 km sjeverno od Nove Gradiške. Područje istraživanja pripada jugozapadnomu dijelu Panonskoga bazenskog sustava, području Savske depresije. Cilj ovoga istraživanja bio je procijeniti mogući utjecaj ratnih zbivanja u Hrvatskoj (od prije 23 godine), kada je ovo područje minirano, i utvrditi koncentracije metala. Deset uzoraka tla nasumično je prikupljeno zajedno s korom i lišćem. Koncentracije glavnih metala i metala u tragovima mjerene su za sve 3 grupe uzoraka ICP metodom. Analizirano tlo sastoji se od kvarca, tinjčastoga minerala, minerala 14Å, plagioklasa i mješovitoga sloja minerala. Sve vrijednosti metala u uzorcima uzetim iz nekadašnjega minskog kratera veće su 2 – 4 puta u odnosu na ostale. Statističkom analizom dobiveni su pozitivni, statistički značajni Kendallovi tau-koeficijenti korelacije tragova metala (Cd, Cr, Cu, Ni, Zn) i za sve kombinacije uzoraka tla, lišća i kore. Takvi rezultati upućuju na to da je ratna aktivnost odigrala određenu ulogu u distribucijskome uzorku tla i vegetativnim razinama metala u tragovima

Cretaceous Volcanic Rock Geosites of the Papuk UNESCO Global Geopark (Croatia): Scientific Aspect of Geoheritage in Geoeducation, Geotourism and Geoconservation

Research over decades confirms the geological values of the Papuk UNESCO Global Geopark (Croatia) as a unique place in the regional frame where several orogenic events left their traces through the formation of diverse lithologies. The important part of the geological mosaic, at least in the western part of the Geopark, is the variety of igneous (sub)volcanic rocks. Albite rhyolite at Rupnica and Trešnjevica geosites formed in the Late Cretaceous (~81 Ma), recording the geological event(s) associated with the closure of the Neotethys Ocean. At that time, acidic silicate melt rose fast from the deep crustal levels to the near surface, where cooling caused regular cracking and the development of columnar jointing. Today, these geosites attract the attention of visitors and therefore they are important landmarks that contribute to local (geo)tourism. They are also used as educational sites for both higher education and schoolchildren with Rupko’s Geological School, in which the development of columnar jointing is explained popularly, further enhancing public awareness of the geodiversity and geoheritage of the Mt. Papuk area. The recently opened Geo-info Center in Voćin significantly enhances the geoheritage presentation at the Geopark

Helicobacter Pylori Infection and Acute Myocardial Infarction

The aim of this investigation was to determine whether H. pylori infection is an independent risk factor for acutemyocardial infarction (AMI), determine is there a link between H. pylori infection and severity of disease. In this prospective, single centre study, were enrolled 100 patients with AMI and control group was consisted 93 healthy individuals. The results of this study showed no difference between H. pylori seropositivity distribution in the investigate and control group (29 vs. 26 %) and there was no significant difference on the severity of the disease. There was significant association in the patients with three and more risk factors, where the patients with lower blood pressure (124.4/77.4 vs. 145.9/87.7 mmHg) and better controled diabetes (HbA1c 6.1 % vs. 6.9 %) had greater risk for AMI if they are H. pylori seropositive. The largemulticentric trials would be needed to define a precise role of H. pylori infection on the developement of AMI

Provenance of Paleozoic very low- to low-grade metasedimentary rocks of South Tisia (Slavonian Mountains, Radlovac Complex, Croatia)

Monazite age dating, detrital heavy mineral content and whole-rock geochemistry provided insight into the provenance, depositional history and paleogeological setting of the Radlovac Complex very low- to low-grade metasedimentary rocks (South Tisia, Slavonian Mountains, Croatia). Electron microprobe based Th-U-Pb dating of detrital monazite indicates a Variscan age of the protolith (330 10 Ma). The detrital heavy mineral assemblages of representative metasedimentary rocks are dominated by apatite, zircon, tourmaline and rutile accompanied by minor quantity of epidote/zoisite, monazite and titanite. Judging from the heavy mineral assemblage, felsic igneous rocks served as the source material. This is consistent with the major and trace element spectrum of studied metasedimentary rocks characterized by high concentration of Th, high L + MREEs and high ratios of La/Sc, Th/Sc, La/Co, Th/Co and Th/Cr. The occurrence of magmatic monazite, zircon and xenotime and the absence of metamorphic heavy minerals suggest that granitoids, migmatites and migmatitic gneisses served as one major source for the metapsammites. Such rock types are commonly exposed in the Papuk Complex of the older surrounding complexes, while the Psunj Complex also contains metamorphic rocks. This is in good correlation with the monazite ages presented here which fits better with ages of Papuk Complex representative rocks than with those of the Psunj Complex known from the literature. Overall, data show that the Radlovac Complex represents the detritus of the local Variscan crust characterized by granitoid bodies, migmatites and migmatitic gneisses typical for the Papuk Complex.(VLID)223446

Helicobacter Pylori Infection and Acute Myocardial Infarction

The aim of this investigation was to determine whether H. pylori infection is an independent risk factor for acutemyocardial infarction (AMI), determine is there a link between H. pylori infection and severity of disease. In this prospective, single centre study, were enrolled 100 patients with AMI and control group was consisted 93 healthy individuals. The results of this study showed no difference between H. pylori seropositivity distribution in the investigate and control group (29 vs. 26 %) and there was no significant difference on the severity of the disease. There was significant association in the patients with three and more risk factors, where the patients with lower blood pressure (124.4/77.4 vs. 145.9/87.7 mmHg) and better controled diabetes (HbA1c 6.1 % vs. 6.9 %) had greater risk for AMI if they are H. pylori seropositive. The largemulticentric trials would be needed to define a precise role of H. pylori infection on the developement of AMI

PREVENTIVE WORK IN FAMILY MEDICINE – PROACTIVE APPROACH

Uloga liječnika opće/obiteljske medicine u prevenciji bolesti i promociji zdravlja potvrđena je rezultatima istraživanja te u zdravstvenoj politici. S obzirom na položaj liječnika opće/obiteljske medicine u zdravstvenom sustavu i njegov bliski, trajni kontakt s populacijom koja ga je izabrala te s lokalnom zajednicom u kojoj djeluje, razumljivo je da je liječniku opće/obiteljske medicine preventivni rad uključen kao neodvojivi dio redovitog, uobičajenog rada u praksi. Skrb za bolesnika u općoj medicini je kompleksna i proteže se od intervencija u determinantama zdravlja do palijativne skrbi. Preventivne aktivnosti su više ili manje prisutne na svakom odsječku tog procesa. Postoji značajan raskorak između znanja liječnika opće/obiteljske medicine i postojeće prakse u korištenju na znanstvenim dokazima utemeljenih preporuka za aktivnosti u promociji zdravlja i prevenciji bolesti. Opisali smo ulogu liječnika opće obiteljske medicine u preventivnom radu i prikazali podatke o preventivnima aktivnostima u službi obiteljske medicine u Hrvatskoj. Za pravu ocjenu preventivnog rada obiteljskih liječnika potrebno je raspolagati objektivnim na znanstvenim dokazima utemeljenim podacima koji će pokazati što obiteljski liječnici rade u praksi. Zbog toga je nužno da liječnici sistematski bilježe i evaluiraju relevantne preventivne aktivnosti i aktivnosti koje provode u promociji zdravlja, a da se njihovo izvršenje programa redovito prati, evaluira te profesionalno i financijski vrednuje. Prema tim je principima Stručna radna skupina za koordinaciju, praćenje i usmjeravanje reforme u obiteljskoj medicini Ministarstva zdravstva i socijalne skrbi Republike Hrvatske izradila program preventivnih aktivnosti u obteljskoj medicini koji je prikazan u ovom raduThe role of general practitioner/family physician (GP/FP) in disease prevention and health promotion is strongly supported by research and health policies. The position of GPs/FPs in the health care system and their close, sustained contact with their patients and local community makes preventive care an integral part of GP/FP routine work. The spectrum of caring for patients in general practice/family medicine is actually very large, going from intervention on health care determinants to palliative care. The prevention-related activities are more or less present at each step of this “healthcare continuum”. The significant gaps between GP/FP knowledge and practices persist in the use of evidence-based recommendations for health promotion and disease prevention. We describe the role of GP/FP in preventive care and report data on preventive care activities in the Croatian Family Medicine Service. More objective evidence is needed to see what GPs/FPs actually do in practice. For this reason, it is critical that GPs/FPs systematically record the most relevant preventive and health promotion activities that they perform. Furthermore, their performance of the preventive program should be regularly monitored, evaluated and professionally and financially validated. We present the preventive program based on these principles in Family Medicine Service proposed by the Ministry of Health and Social Welfare Working Group on Reform of Primary Health Care