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An Early Miocene biserial foraminiferal event in the Transylvanian Basin (Romania)
Claudia Beldean, Sorin Filipescu, Ramona B lc
Geologica Carpathica , 2010, DOI: 10.2478/v10096-010-0013-4
Abstract: Investigations of the Lower Miocene of the Transylvanian Basin reveal particularly high abundances (> 90 % of total foraminifera) of small sized biserial foraminifera (Bolivina/Streptochilus). This biotic event has not been noticed in the Transylvanian Basin so far probably owing to the facies misinterpretation and the small size of the specimens. SEM investigations allow more precise identification of biserial planktonic taxa and more accurate taxonomic interpretations. The high abundance of Bolivina/Streptochilus assemblages provide evidence for paleogeographic connections to the Indo-Pacific area and support new paleoenvironmental interpretations at the transition from the Early to Middle Miocene in relation to the paleoceanographic events. Both planktonic foraminifera and calcareous nannoplankton suggest a late Burdigalian age. A new Bolivina/Streptochilus Abundance Biozone is proposed just below the Early/Middle Miocene boundary.
A New Azhdarchid Pterosaur from the Late Cretaceous of the Transylvanian Basin, Romania: Implications for Azhdarchid Diversity and Distribution  [PDF]
Mátyás Vremir, Alexander W. A. Kellner, Darren Naish, Gareth J. Dyke
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0054268
Abstract: We describe a new taxon of medium-sized (wing span ca. 3 m) azhdarchid pterosaur from the Upper Cretaceous Transylvanian Basin (Sebe? Formation) of Romania. This specimen is the most complete European azhdarchid yet reported, comprising a partially articulated series of vertebrae and associated forelimb bones. The new taxon is most similar to the Central Asian Azhdarcho lancicollis Nessov but possesses a suite of autapomorphies in its vertebrae that include the relative proportions of cervicals three and four and the presence of elongated prezygapophyseal pedicles. The new taxon is interesting in that it lived contemporaneously with gigantic forms, comparable in size to the famous Romanian Hatzegopteryx thambema. The presence of two distinct azhdarchid size classes in a continental depositional environment further strengthens suggestions that these pterosaurs were strongly linked to terrestrial floodplain and wooded environments. To support this discussion, we outline the geological context and taphonomy of our new specimen and place it in context with other known records for this widespread and important Late Cretaceous pterosaurian lineage.
Plantago cornuti Gouan, a rare halophyte: sites from Transylvanian Depression (Romania)  [PDF]
Raluca Diodiu
Extreme Life, Biospeology & Astrobiology , 2010,
Abstract: This paper is a brief summary on the rare halophile species Plantago cornuti Gouan’spopulations in the Transylvanian Depression (Romania). In this work were listed and characterized anumber of sites across the Transylvanian Depression, where Plantago cornuti Gouan vegetate. Datawere obtained on the physical characteristics of species and chemical composition of soils that aregood for species’s development. There are also mentioned the countries of Europe in which wasreported the presence of this species.
Rehabilitation of Mature Gas Fields in Romania: Success Through Integration of Management Processes and New Technology  [PDF]
Kugler Ralph L.,Stefanescu Dan,Louboutin Michel,Wegemer Kriss
Acta Montanistica Slovaca , 2004,
Abstract: Nature oil and gas fields are difficult to rehabilitate effectively because of the economics of declining production. Many fields are abandoned prematurely when their life could be prolonged significantly through application of new technology. Romgaz (a national exploration and production company) and Schlumberger (an integrated oilfield services company) developed a new business model to overcome these obstacles. The key to success of this model, which is being applied to gas fields in the Transylvanian basin of Romania, is the shared risk and shared reward for the two companies. Integrated management processes addressing the complete system from reservoir to wellbore to surface/transmission facilities and application of new technology (logging, perforation, etc.) have resulted in multifold increases in production.
Research concerning the influence of several factors on Pb2+, Cu2+ and Zn2+ ions adsorption by natural zeolite tuff from Maramure county, Northern Romania  [PDF]
Irina Smical,Leonard Mihaly-Cozmu?a,Dan Costin
Advances in Environmental Sciences , 2010,
Abstract: The purpose of this research is to highlight the influence that certain parameters have on theremoval efficiency of Pb2+, Cu2+ and Zn2+ ions from industrial wastewater using natural zeolite tuff.Environmental and human health damage arising due to heavy metal content in surface water andgroundwater have been challenging for researchers to find the most effective treatment methods with ahigh yield and relatively low cost (Carland & Aplan 1995; Curkovic et al 1997; Inglezakis et al 2003;Inglezakis et al 2005). They may well be achieved by using natural zeolites whose properties such as:molecular sieves, adsorption, hydration-dehydration without modifying their structural network, whichgive them an important role in the removal of heavy metal ions from wastewater (Alvarez-Ayuso et al2003; Peric et al 2004). For this experiment the zeolite tuff sample was taken from a perimeter withvolcanic tuffs located in the Barsana area, Maramures County, Romania. During the batch experiment theinfluence of certain factors on the ion exchange process was observed, like: particle diameter of zeolitetuff and the pH of the contact solution. After processing the data it was found that the highest levels ofspecific adsorption for all studied heavy metal ions has been obtained for the lowest average diameters(d = 0.037 mm) of the ground natural zeolite used in the experiment and the best adsorption has beendone at the highest pH used in the experiment (pH = 4).
Critical Precipitation Spells in the Transylvanian Depression
ADINA-ELIZA CROITORU,FLORIN MOLDOVAN,CARMEN-SOFIA DRAGOT?
Romanian Review of Regional Studies , 2008,
Abstract: The increased frequency of the climatic hazards requires more and more detailed studies on this issue. Thus, the present paper aims at identifying the critical precipitation spells for the Transylvanian Depression area. In this respect, statistical data from 1971-2000, recorded in 10 weather stations (Cluj-Napoca, Blaj, Sebe , Tg. Mure , Dumbr veni, Sibiu, F g ra , Dej, Bistri a, Odorheiu Secuiesc) were used. The main conclusions are the following: in the analyzed region, most of the days within the year (110...131 days) have a frequency of precipitation occurrence between 30...40 %; at the weather stations protected by the Apuseni Mountains and by the Southern Carpathians (Blaj, Sebe , Sibiu), the “precipitation shadow” is felt and so, the number of rainy days with an occurrence frequency higher than 40% decreases if compared to the other analyzed weather stations within the studied area; the length of critical precipitations spells, common to most of the analyzed weather stations, ranges between one and 21 running days (for an occurrence frequency higher than 40%) and between one and 6 running days (with an occurrence frequency higher than 50%), respectively; critical precipitation spells, common for the entire region, are missing in March, while in August and October have a very low frequency (1-2 days).
Assessment of trap efficiency of the reservoirs in the Siret Basin (Romania)
Florin OBREJA
GEOREVIEW : Scientific Annals of Stefan cel Mare University of Suceava. Geography Series , 2013, DOI: 10.4316/georeview.2012.21.1.60
Abstract: In this paper we calculate the trap efficiency of the reservoirs in the Siret Basin and we make also a briefly analysis to show the way this reservoirs influence the sediment discharge of the rivers by sedimentation. Trap efficiency (TE) is an indicator and parameter of sediment yield from upstream and of sedimentation rate from the reservoirs. In consequence we calculate for 14 reservoirs in the Siret Basin this parameter. The values of TE vary between 42 – 98% and correlates very well with the capacity of the reservoirs. In reservoirs with the high capacity the values approach to 100% while in small reservoirs, the value of TE is decreasing. Capacity and operating mode lakes are important factors controlling the degree of retention of sediment from the source area. Sedimentation within reservoirs is a problem as it decrease the storage capacity and, hence, makes the structure less efficient. For small reservoirs, sedimentation can become a severe problem as the rate of siltation is generally much higher in comparison to large dams
Environmental assessment of pollution with detergents in the Prut River Basin, Romania
Claudia Cojocariu,Br?ndu?a Robu,George Barjoveanu,Carmen Teodosiu
Advances in Environmental Sciences , 2011,
Abstract: This study focuses onto the assessment of the impacts and associated risks posed onto naturalwater bodies by detergent-containing wastewaters in the Prut river basin in North-Eastern Romania. Thefocus of this assessment on detergents as a specific wastewater component is motivated by theenvironmental hazards that detergents cause when entering natural eco-systems, as well as by the rapiddevelopment of the living conditions in the studied area. The assessment of environmental impacts andassociated risks is performed using a methodology that considers risk as a function of risk magnitude(environmental impacts) and the probability of occurrence. The assessment focuses onto four types ofactivities (industry, wastewater treatment plants - WWTPs, municipalities and services) in four counties ofthe Prut River Basin and it is based on surface water quality data that was collected in 2007. The resultshave shown that the highest impacts and associated risks are present in Vaslui and Galati counties (thesouthest part of the Prut river basin) mostly because of the high probabilities that polluting agents wouldexceed the maximum allowed concentrations for detergents.
Regional Differentiations for the Temporal Variations of Atmospheric Precipitations in the Transylvanian Depression  [PDF]
ADINA-ELIZA CROITORU,FLORIN MOLDOVAN
Romanian Review of Regional Studies , 2005,
Abstract: This study refers to the trends in precipitation amounts in the central part of Romania (the Transylvanian Depression) between 1961-2000. The general trend was calculated using the least-squares linear fitting for the whole period and for every decade of the period: 1961-1970, 1971-1980, 1981-1990, 1991-2000. The main results of our research are: during the whole period there is a general decreasing trend in this region, especially in its southern area; during the first two decades, there was an increase trend, between 1981-1990 the general trend was a decrease and the trend for the last decade of the 20th century was variable.
Gheorghiu Dej – S -l p str m cum era n via !  [cached]
Stelian T?nase
Sfera Politicii , 2011,
Abstract: Gheorghiu Dej’s death intrigues a number of history writers, who count on a conspiracy coined by the Kremlin which was unhappy with his April 1964 declaration”. Back then, quite a few Romanians lamented Dej, because during the last two or three years of his rule, the living conditions improved, many political prisoners were released, and even more, Romanians looked with great sympathy at Romania’s distancing from the USSR and the warming up to the West, where Dej expected to find technological and diplomatic support. Hence, his passing away has all the required elements to be seen, even today, as a controversial moment.
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