scholarly journals Geochemical Features of the Thermal and Mineral Waters From the Apuseni Mountains (Romania)

2021 ◽  
Vol 9 ◽  
Author(s):  
Alin-Marius Nicula ◽  
Artur Ionescu ◽  
Ioan-Cristian Pop ◽  
Carmen Roba ◽  
Ferenc L. Forray ◽  
...  

The Apuseni Mountains are located between the large geothermal area of the Pannonian Basin and the low thermal flux Transylvanian Basin. Thermal and mineral waters have been sampled from 42 points along a NW-SE transect. The general chemistry and the water isotope (deuterium and oxygen-18) composition were analyzed. Most of the thermal aquifers are located in carbonate reservoirs. The waters mainly belong to the Ca-HCO3 hydrochemical type, excepting the western side, towards the Pannonian Basin, where the Na-HCO3 type may occur. The isotope composition indicates aquifer recharge from precipitation. The geochemical characteristics and the structural position of the study area suggest two distinct geothermal contexts. The Southern Apuseni area geothermal features are likely connected to the Neogene—Early Quaternary magmatic activity from the Mureş Valley and Zarand Depression. The geothermal manifestations in the north-western part of the study area, at the border between the Northern Apuseni and the Pannonian Depression, share features of the latter one.

2020 ◽  
Author(s):  
Alin-Marius Nicula ◽  
Artur Ionescu ◽  
Cristian-Ioan Pop ◽  
Carmen Roba ◽  
Walter D’Alessandro ◽  
...  

<p><strong>Geochemical features of the geothermal and mineral waters from Apuseni Mountains, Romania</strong></p><p>Alin-Marius Nicula<sup>1</sup>, Artur Ionescu<sup>1,2</sup>, Cristian-Ioan Pop<sup>1</sup>, Carmen Roba<sup>1</sup>, Walter D’Alessandro<sup>3</sup>, Ferenc Lazar Forray<sup>4</sup>, Iancu Oraseanu<sup>5</sup>, Calin Baciu<sup>1</sup></p><p><sup> </sup></p><p><sup>1</sup>Babes-Bolyai University, Faculty of Environmental Science and Engineering, Str. Fantanele nr. 30, 400294, Cluj-Napoca, Romania ([email protected])</p><p><sup>2</sup>University of Perugia, Department of Physics and Geology, Via A. Pascoli 06123, Perugia, Italy</p><p><sup>3</sup>Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Via Ugo la Malfa, 153,</p><p>90146 Palermo, Italy</p><p><sup>4</sup>Department of Geology, Babes-Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania</p><p><sup>5</sup>Romanian Association of Hydrogeologists, Bucuresti, Romania</p><p> </p><p>The Apuseni Mountains are located in the western part of Romania and separate the Pannonian Basin from the Transylvanian Basin. These mountains are famous and intensely studied for their important non-ferrous metal resources. Few data were published about the geothermal potential of this area. More works have been dedicated to mineral waters, while the geothermal waters are only briefly described, without sufficient emphasis on them. The current research is focusing on the two categories, cold mineral and geothermal water in the Apuseni Mountains, compared to the surrounding areas, in order to better understand their genesis and the general context of the geothermalism in the study region. A preliminary survey of these waters was done in 2019 taking water and gas samples from 41 sources.</p><p>The pH varies between 6.00 and 9.02 and, the lowest values have been measured in the CO<sub>2</sub>-rich waters of the Southern Apuseni Mountains. Water temperatures vary between 11.1 <sup>â—‹</sup>C and 81 <sup>â—‹</sup>C. In the southern part of the Apuseni Mountains, the geothermal waters are of the calcium bicarbonate type (Ca-HCO<sub>3</sub>), while in the north-western part, the sodium bicarbonate type (Na-HCO<sub>3</sub>) is more common. The water sources from the north-western part are close to the Pannonian Basin and show features comparable to the thermal waters of this basin. Conductivity values show significant variations between 142 and 2040 µS/cm, but regional homogeneities were observed. The highest concentration of bicarbonate was measured in one of the localities of the northern study area (BeiuÅŸ Depression - 3318.4 mg/L). The dissolved heavy metal concentrations (Zn, Pb, Cd, Cr, Ni, Cu, Fe) in the water samples were also measured. For all the investigated waters, the heavy metal content was low. The highest concentrations were recorded for Fe 342.90 µg/L and Zn 86.14 µg/L. The isotopic data (δ<sup>18</sup>O and δ<sup>2</sup>H) demonstrate the meteoric origin of the thermal waters.</p><p>Some springs and wells release free gases. The gas chromatographic analyses show the prevalence of N<sub>2</sub> and CO<sub>2</sub>, with minor amounts of CH<sub>4 </sub>in the water sources close to the Pannonian Basin. The isotope composition of Helium shows values between 0.9 and 2.18 R/Ra indicating a prevailing crustal source with a significant mantle component. In the case of δ<sup>13</sup>C-CO<sub>2</sub> the values range between -12.7 and -6.1 ‰ vs.V-PDB, indicating that the CO<sub>2</sub> originates possibly from a limestone source.</p>


2021 ◽  
Vol 325 (2) ◽  
pp. 143-155
Author(s):  
N.E. Zhuravleva

The paper considers the species composition of the fauna of several cnidarian groups of the Kara Sea. The author presents a list of species of the studied groups and indicates the types of habitat for each species. The analysis was based on the literature data, the collections of the Zoological Institute of the Russian Academy of Sciences and material collected in the Kara Sea during the expedition to the R/V Professor Multanovsky in 2019. In total, 87 species of Hydrozoa, 3 species of Scyphozoa, 4 species of Staurozoa, and 5 species of the order Alcyonacea from the class Anthozoa were recorded for the fauna of the Kara Sea, based on the new material obtained by the author and published literature data. The report presents the biogeographic structure of the discussed cnidarian groups. According to the types of biogeographic ranges, the fauna of the above-mentioned cnidarian groups in the Kara Sea mostly consists of representatives of the Boreal-Arctic type of habitat (63%), the Boreal and Amphiboreal biogeographic groups each containing 12% of the total number of described species, and the Panoceanic and Arctic groups together accounting for only 9% and 4% of the fauna of the Kara Sea. Two species new for the Kara Sea, Neoturris pileata (Forsskål, 1775) and Neoturris pileata (Forsskål, 1775), are described. Neoturris pileata is an element of the warm-water Atlantic fauna that penetrated into the Kara Sea with waters of Atlantic genesis. Nausithoe werneri is an element of the cold-water Arctic fauna that penetrated into the Novaya Zemlya Trough of the Kara Sea from the north-western side from the St. Anna Trough, which was open to the Polar Basin.


1957 ◽  
Vol 52 ◽  
pp. 193-194 ◽  
Author(s):  
A. J. B. Wace

In 1956 the Greek Archaeological Council decided that there should be no excavations at Mycenae. The Anastelosis Department was still busy with the rebuilding of the Cyclopean walls of the Citadel along the western side and along the stretch of ashlar work in conglomerate from the Lion Gate to the north-western angle. At the actual north-western angle the Cyclopean work of the northern wall of the acropolis had originally met the conglomerate work in ashlar with a straight vertical joint. This has now been obscured in the rebuilding. The Archaeological Service was also planning and preparing to put into effect various measures to protect the site from damage by the large numbers of tourists who visit it every year.Since we were thus not able to excavate, we devoted ourselves to studying and preparing for publication the finds from the excavations of previous years in the museums at Athens and Nauplia. In Athens the Director of the National Museum, Dr. Karouzos, and his wife, Mrs. Semne Karouzou, made us very welcome and afforded us every possible facility. Mrs. Sakellariou and Mr. Papathanasopoulos, assistant curators in the museum, also gave us much friendly help. At Nauplia Mr. N. Verdeles, the Inspector of Antiquities, and Miss Protonotariou, the Epimeletes, made special arrangements for our work and gave us every support.


Zootaxa ◽  
2009 ◽  
Vol 2044 (1) ◽  
pp. 46-60 ◽  
Author(s):  
ALAIN DIDIER MISSOUP ◽  
VIOLAINE NICOLAS ◽  
WIM WENDELEN ◽  
CHARLES FELIX BILONG BILONG ◽  
CORINNE CRUAUD ◽  
...  

We used both molecular and craniometrical data to test the presence of Hylomyscus walterverheyeni in the Cameroon Volcanic Line (CVL). Our molecular (cytochrome b and 16S gene sequencing) and morphometrical data (discriminant analyses) clearly show the presence of H. walterverheyeni in the CVL, north-west of the Sanaga River. Hylomyscus walterverheyeni occupies both lowland and mountain forests (up to 2000m asl). In our phylogenetic analyses, the CVL specimens form a monophyletic group. This clade seems to reflect the role of the Sanaga River as a barrier to gene flow within the species.


2012 ◽  
Vol 6 (1) ◽  
pp. 31-36
Author(s):  
Štefan Danko ◽  
Ervín Hrtan

Abstract On May 1 5, 201 2 an individual of Levant sparrowhawk Accipiter brevipes was observed at the southern edge of Trebišov town in eastern Slovakia, situated in the Východoslovenská rovina Lowlands. The sighting was documented with photographs. This is the first recorded occurrence of this species in terms of the bird fauna of Slovakia. The present article describes in detail its distribution and breeding in eastern Hungary and western Romania, based on an isolated population in the Pannonian Basin at the north-western edge of its breeding range. The occurrence of the Levant sparrowhawk beyond the boundaries of its breeding range and outside the Pannonian Basin consists mostly of rare movements by young individuals (northern Moravia, central and northern Poland) far north of its breeding range. An adult male was observed in south-eastern Poland in the pre-breeding period, and in Slovakia an adult female was observed in the breeding period.


1938 ◽  
Vol 75 (4) ◽  
pp. 174-184 ◽  
Author(s):  
W. A. Deer

The Glen Tilt Complex, one of the larger masses of the Newer Granites of the Central Highlands, is included in sheet 64 of the Geological Survey of Scotland. The greater part of this complex is a granite which is bounded on the south-west and southeast by an earlier series of intermediate and basic rocks. The granites described in this contribution are restricted to a small area at the south-eastern margin of the large granitic intrusion generally known as the Beinn Dearc granite. The smaller and independent intrusion of the Sron a ‘Chro’ granite and a number of smaller masses of granite associated with the marginal strip of diorites on the north-western side of Glen Tilt have also been examined. These small isolated areas appear to be contemporaneous with the intrusion of the main Beinn Dearc mass and have been intruded between the earlier diorites and the margin of the intrusion, a feature not uncommon in many of the other Scottish Newer Granites. A small independent mass of muscovite-biotite-granite intruded into quartz-mica-diorite occurs on Conlach Mhor. Although these rocks are completely isolated from both the biotite- and muscovite-biotite-granites of the main Beinn Dearc intrusion their essential similarity with the latter leaves no reasonable doubt of their common origin.


1970 ◽  
Vol 14 (3) ◽  
pp. 109-118
Author(s):  
Marzanna Jagiełło ◽  
Wojciech Brzezowski

In the third part of the 18th century the earliest public landscape gardens began to appear in the area of suburban Jelenia Góra. They were the first public parks in Silesia. When establishing them, the natural landscape features of the area were used (Karkonosze). Two of them, Hausberg and Helkon, were created at the end of the 17th century on the north-western side of the city.


2021 ◽  
Vol 11 ◽  
Author(s):  
Claudio D’Onofrio ◽  
Giorgio Tumino ◽  
Massimo Gardiman ◽  
Manna Crespan ◽  
Cristina Bignami ◽  
...  

The Italian grape germplasm is characterized by a high level of richness in terms of varieties number, with nearly 600 wine grape varieties listed in the Italian National Register of Grapevine Varieties and with a plethora of autochthonous grapes. In the present study an extended SNP genotyping has been carried out on Italian germplasm of cultivated Vitis vinifera subsp. sativa and Vitis hybrids. Several hundred Italian varieties maintained in the repositories of scientific Institutions and about one thousand additional varieties derived from previous studies on European, Southern Italy, Magna Graecia and Georgian germplasm were considered. The large genotyping data obtained were used to check the presence of homonyms and synonyms, determine parental relationships, and identify the main ancestors of traditional Italian cultivars and closely-related accessions. The parentage among a set of 1,232 unique varieties has been assessed. A total of 92 new parent-offspring (PO) pairs and 14 new PO trios were identified. The resulted parentage network suggested that the traditional Italian grapevine germplasm originates largely from a few central varieties geographically distributed into several areas of genetic influence: “Strinto porcino” and its offspring “Sangiovese”, “Mantonico bianco” and “Aglianico” mainly as founder varieties of South-Western Italy (IT-SW); Italian Adriatic Coast (IT-AC); and Central Italy with most varieties being offsprings of “Visparola”, “Garganega” and “Bombino bianco”; “Termarina (Sciaccarello)” “Orsolina” and “Uva Tosca” as the main varieties of North-Western Italy (IT-NW) and Central Italy. The pedigree reconstruction by full-sib and second-degree relationships highlighted the key role of some cultivars, and, in particular, the centrality of “Visparola” in the origin of Italian germplasm appeared clear. An hypothetical migration of this variety within the Italian Peninsula from South to North along the eastern side, as well as of “Sangiovese” from South to Central Italy along the Western side might be supposed. Moreover, it was also highlighted that, among the main founders of muscat varieties, “Moscato bianco” and “Zibibbo (Muscat of Alexandria)” have spread over the whole Italy, with a high contribution by the former to germplasm of the North-Western of the peninsula.


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