bluuebunny/crossref_metadata_2025 huggingface dataset:
The influence of urban environments on our subjective momentary experiences
Authors: Birenboim Amit
Published: January 2017

In today's developed world, the ability of a city to generate good experiences for its residents and visitors is a main aspect of its attractiveness. A good city is considered to be one in which people feel secure, relaxed, and happy. This article explores the factors that influence the subjective momentary experiences of individuals in the city, while focusing on the impact of spatial variables on these experiences; 91 students living in Jerusalem, Israel, were asked to repeatedly self-report four dimensions of episodic experience, namely, sense of security, happiness, annoyance, and sense of comfort. Reports were sent in real time using a smartphone application during an eight-month period. The results, based on over 5000 experience samples, indicate that subjective momentary experiences, particularly sense of comfort and sense of security, are highly influenced by situational variables and environmental characteristics including type of activity and environment, place characteristics, and company. Surprisingly, personality variables which are considered to be a main determinant of wellbeing and general life satisfaction were found to be non-significant in the multilevel models that were implemented. This finding further supports the notion that momentary experiences greatly differ from general evaluations of subjective wellbeing.
The complete genome sequence of the yogurt isolate Streptococcus thermophilus ACA-DC 2
Authors: Alexandraki Voula , Kazou Maria , Blom Jochen , Pot Bruno , Tsakalidou Effie , Papadimitriou Konstantinos
Published: January 2017

Streptococcus thermophilus ACA-DC 2 is a newly sequenced strain isolated from traditional Greek yogurt. Among the 14 fully sequenced strains of S. thermophilus currently deposited in the NCBI database, the ACA-DC 2 strain has the smallest chromosome, containing 1,731,838 bp. The annotation of its genome revealed the presence of 1,850 genes, including 1,556 protein-coding genes, 70 RNA genes and 224 potential pseudogenes. A large number of pseudogenes were identified. This was also accompanied by the absence of pathogenic features suggesting evolution of strain ACA-DC 2 through genome decay processes, most probably due to adaptation to the milk ecosystem. Analysis revealed the existence of one complete lactose-galactose operon, several proteolytic enzymes, one exopolysaccharide cluster, stress response genes and four putative antimicrobial peptides. Interestingly, one CRISPR-cas system and one orphan CRISPR, both carrying only one spacer, were predicted indicating low activity or inactivation of the cas proteins. Nevertheless, four putative restriction-modification systems were determined that may compensate any deficiencies of the CRISPR-cas system. Furthermore, whole genome phylogeny indicated three distinct clades within S. thermophilus. Comparative analysis among selected strains representative for each clade, including strain ACA-DC 2, revealed a high degree of conservation at the genomic scale, but also strain specific regions. Unique genes and genomic islands of strain ACA-DC 2 contained a number of genes potentially acquired through horizontal gene transfer events, that could be related to important technological properties for dairy starters. Our study suggests genomic traits in strain ACA-DC 2 compatible to the production of dairy fermented foods.
Genomic analysis of four strains of Corynebacterium pseudotuberculosis bv. Equi isolated from horses showing distinct signs of infection
Authors: Baraúna Rafael A. , Ramos Rommel T. J. , Veras Adonney A. O. , de Sá Pablo H. C. G. , Guimarães Luís C. , das Graças Diego A. , Carneiro Adriana R. , Edman Judy M. , Spier Sharon J. , Azevedo Vasco , Silva Artur
Published: January 2017

The genomes of four strains (MB11, MB14, MB30, and MB66) of the species Corynebacterium pseudotuberculosis biovar equi were sequenced on the Ion Torrent PGM platform, completely assembled, and their gene content and structure were analyzed. The strains were isolated from horses with distinct signs of infection, including ulcerative lymphangitis, external abscesses on the chest, or internal abscesses on the liver, kidneys, and lungs. The average size of the genomes was 2.3 Mbp, with 2169 (Strain MB11) to 2235 (Strain MB14) predicted coding sequences (CDSs). An optical map of the MB11 strain generated using the KpnI restriction enzyme showed that the approach used to assemble the genome was satisfactory, producing good alignment between the sequence observed in vitro and that obtained in silico. In the resulting Neighbor-Joining dendrogram, the C. pseudotuberculosis strains sequenced in this study were clustered into a single clade supported by a high bootstrap value. The structural analysis showed that the genomes of the MB11 and MB14 strains were very similar, while the MB30 and MB66 strains had several inverted regions. The observed genomic characteristics were similar to those described for other strains of the same species, despite the number of inversions found. These genomes will serve as a basis for determining the relationship between the genotype of the pathogen and the type of infection that it causes.
From the Desert to the Refuge
Authors: Stanwood Owen
Published: January 2017

This article follows the transatlantic journey of a minister named Jean-Louis Gibert and through his story illuminates an unexplored chapter in French Atlantic history. A Protestant minister from Languedoc, Gibert worked to create Protestant churches in Saintonge, but during the 1760s he fled France, moving first to England and eventually to South Carolina, where he and several hundred Huguenot refugees founded the frontier town of New Bordeaux. Gibert's story illustrates the global nature of eighteenth-century French Protestantism, divided as it was between those who stayed in the French “Desert” and those who found new lives as refugees. Like other Huguenots, Gibert first hoped to use emigration as a political strategy to force concessions from Louis XV. When this strategy failed, the minister and his neighbors left France entirely, promoting themselves as perfect immigrants who would use their skills to develop the British Empire.

Cet article suit le voyage transatlantique d'un pasteur protestant nommé Jean-Louis Gibert pour éclaircir un chapitre méconnu de l'histoire de l'Atlantique français. Languedocien d'origine et engagé dans la construction d'églises protestantes à Saintonge, Gibert décida de fuir la France pendant les années 1760, d'abord pour l'Angleterre et finalement en Caroline du Sud, où il fonda la ville frontalière de New Bordeaux avec plusieurs centaines d'autres réfugiés huguenots. L'histoire de Gibert illustre le caractère global du protestantisme français au dix-huitième siècle, partagé entre ceux qui tentèrent une traversée clandestine du « Désert » français, et ceux qui choisirent l'émigration. Comme d'autres huguenots, Gibert espérait initialement utiliser son émigration pour arracher des concessions à Louis XV. Lorsque ce projet politique échoua, le pasteur et ses proches quittèrent définitivement la France, optant finalement pour une image d'émigrés parfaits prêts à mettre leurs compétences au service de l'Empire britannique.
Between Habbakuk and Locke: Pain, Debt, and Economic Subjectivation inParadise Lost
Authors: Im Seo Hee
Published: January 2017

Readers of Paradise Lost have argued that the epic registers England’s nascent imperialism negatively through its associations of trade with Satan. This essay rethinks Paradise Lost’s relation to empire by tracing its involvement in the making of an early modern subjectivity that is constitutively informed by an awareness of debt, debit, and credit. That profane mode of thought later finds more enthusiastic expression in the early English novels of Daniel Defoe and others, but it begins to take shape in Milton, who derives it from none other than religious sources such as scripture, atonement theology, and nostalgia for purgatory. Despite its voiced misgivings about British commercialism, Paradise Lost thus participates in England’s historical growth from peripheral island to sprawling world empire.
On some local restricted Maastrichtian environments of the "Hațeg Island" (Transylvania, Romania)
Authors: Codrea V. , Solomon Al. , Fărcaș C. , Barbu O.
Published: January 2017

The continental Maastrichtian formations from Transylvania are notorious mainlyfor bearing peculiar fossils related to an island realm known as the "Hațeg Island". The thick piles of sedimentary rocks accumulated in fluvial environments. The "red beds" are in dominance. However, local peculiar environments are of interest for specific types of fossilization (plants, invertebrates or vertebrates), i.e. ox-bow lakes or fluvial temporary abandoned channels. In such deposits the fossil record can be different compared to the red beds, especially when the oxygen content was low. Case studies as the ones from Pui (Hațeg Basin) or Oarda de Jos (SW Transylvanian Basin) are exposed. The relationships of fossil taxa and these restricted environments are discussed.
Taphonomical observations on the pygmy hippopotamus site in Aghia Napa, Cyprus.
Authors: Filippidi A. , Stathopoulou E. T. , Theodorou G.
Published: January 2017

In this paper data concerning the taphonomy of the Upper Pleistocene site Aghia Napa in Cyprus is presented. The site is dominated by skeletal material belonging to the pygmy Hippopotamus species Phanourios minor, and consists a littoral rockshelter. The fossiliferous assemblage is spread in a total area of about 72 m2 and a significantly large number of specimens were collected, indicating the presence of more than 160 individuals at the site. In this paper, we attempt to identify the causes or mechanisms that led to the accumulation of the endemic hippopotamus remains, focusing also on the palaeo-environmental parameters that might had affected the survivorship of the fossils. The taphonomical analysis is also based on parameters, which provide information concerning skeletal element representation and thus survivorship. The study of the skeletal material shows signs of abrasion, cracking and significant fragmentation which are related to the type, size and shape of the skeletal elements. The bone assemblage is interpreted as a result of transportation of the skeletal material from longer or shorter distances in the surrounding area while the impact of man concerning their accumulation is still under discussion.
Biostratigraphy and sedimentology of the Ionian Zone Ammonitico Rosso in the Mavron Oros area (NW Epirus, Greece) - Paleogeographic implications.
Authors: Karakitsios V. , Chatzicharalampous E.
Published: January 2017

New biostratigraphic and sedimentologic data on the Ammonitico Rosso (AR) formation in the Mavron Oros area (Ionian zone, NW Epirus) show that its thickness progressively reduces towards the N-NW (from 15 to 7m). Two sections were studied, in the thick (A) and thin succession (B) respectively. The ammonite fauna indicates a stratigraphic range for the AR from the early Toarcian to the Aalenian, in section A, and from the upper part of Middle Toarcian to the Aalenian, in section B. Thus, AR deposition was transgressive, confirming the stratigraphic pinching-out of the synrift formations, observed in the same area towards the N-NW. Sedimentologic observations showed that the AR in section B (where AR base is missing) consists of nodular mud-to wackestones with subsolved ammonite shells, and clear indices of early lithification and subsequent solution of fine carbonate material. These observations indicate low rates of sedimentation and repeated phases of non-deposition and submarine erosion, characteristic for seamount environment.
Geological aspects on the sustainability of ancient aqueducts of Athens
Authors: Chiotis E. D. , Marinos P. G.
Published: January 2017

Geological aspects of the ancient aqueducts of Athens are examined with particular emphasis on the hydrogeological and geotechnical conditions which made possible their continuous function throughout the centuries up today. In particular, the sustainability of the Hymettos and the Hadrianic aqueducts is investigated and attributed to the capture of underground water and the skillful construction of the tunnels. The geometry of the Hadrianic aqueduct and the situation in the ancient tunnel are presented based on data obtained during the resumption of the ancient work in the 19th and 20th centuries. The up to forty meters deep wells along the tunnel continue to collect underground water at many places along the twenty kilometers long path of the Hadrianic aqueduct. Similarly, the Hymettos aqueduct still irrigates the National Garden with a daily rate of about one thousand cubic meters. The stability of the ancient tunnels is correlated with the surrounding geological formations; it turns out that the stability problems of the ancient tunnels are comparable to those met in the tunneling works of the Metro lines, particularly in the Athenian Schists. A new part of an ancient aqueduct was crossed during the Metro works which is considered to belong to the Hymettos aqueduct.
Obtaining information on the Q-structure of the southern Aegean subduction area by spectral slopes from temporary and permanent networks.
Authors: Ventouzi Ch. , Papazachos C. , Papaioannou Ch. , Hatzidimitriou P. , EGELADOS Working group
Published: January 2017

Anelastic attenuation studies have been considered one of the main controlling factors affecting seismic wave  propagation, providing important information on the earth’s structure. In order to investigate the attenuation structure of the southern Aegean subduction area, we employed ~400 intermediate depth earthquakes recorded by temporary and permanent networks. Using the recorded waveforms we have calculated a frequency-independent path attenuation operator t* for both P and S waves. Initially an automated method was employed, where t* was automatically calculated by the slope of the acceleration spectrum produced above the corner frequency, fc. Computations were performed in the 0.2-25Hz frequency band, using only spectra with a signal to noise ratio greater than 3, and above the noise level for at least the range 1-4Hz (for S and P waves, respectively). In the second approach, the selection of the segment of the spectrum was carried out manually for optimum fitting.   No considerable linear trend revealing dependence of t* with distance could be observed on the original data, whereas strong clustering for different focal depth ranges was observed. The spatial variation of the obtained t* values shows that, in general, along arc stations present low values of t*, while bac k-arc stations show much larger values. The observed t* difference becomes more pronounced as the depth of the earthquakes increases, suggesting a significant localized effect of the high  -attenuation (low-Q) mantle wedge, in agreement with independent observation.
Morphotectonic analysis of Heraklion Basin (Crete, Greece).
Authors: Kokinou E. , Skilodimou H. D. , Bathrellos G. D.
Published: January 2017

In the present study, geomorphological, geological data and morphotectonic analysis were combined in order to investigate the relation between the tectonic activity and the geomorphology in the Heraklion basin (Crete). GIS techniques were used for mapping the various topographic, geological and tectonic features of the study area. The digital elevation model (DEΜ) of the study area was created. The slope angle and aspect maps were derived from DEM and combined with fault system orientation. The influence of tectonism on the development of drainage system was examined by the comparison of fault and stream directions. Moreover, geomorphic indices are useful tools in evaluating tectonic activity, relating the sensitivity to rock resistance, climatic change and tectonic processes with the production of a certain landscape. The applied geomorphic indices, in the present study, are the mountain front sinuosity index (Smf) and the valley floor width to valley height ratio (Vf). The fault zones of the study area are generally oriented N-S, NE-SW, NW-SE and E-W. According to the morphological analysis, steep slopes and sudden changes corresponding to the azimuth of the slope direction, are mainly related to N-S, NNE-SSW and NNW-SSE oriented faulting. The main channel directions of the drainage system are mainly controlled by faults striking N-S. The E-W, NE-SW and NW-SE general trending fault systems affect the low order streams. The Smf and Vf values are low, implying that the tectonic activity influences the morphology of the study area. The above methodology was proved successful to examine the impact of the tectonic activity in the study area.
Geomorphological quantitative analysis of Sperchios River Basin area (Central Greece) utilizing geographical information systems.
Authors: Psomiadis E. , Migiros G. , Antoniou V.
Published: January 2017

In the present study the analysis of the morphometric quantitative parameters of Sperchios river basin, and specifically of the 8 main sub-basins of the northern and southern part, have been made. The integrated use of a Geographic Information System (GIS) allows a thorough spatial analysis of the data derived from digital terrain spatial models that reveal the geomorphological characteristics of an area. The thorough analysis of the results shows the significant difference of the morphological characteristics of the northern and southern part of the catchment area, due to the impact of the neotectonic activity of the area, which creates this asymmetrical topography.
Using remote sensing multispectral data and GIS techniques for the geological mapping of Halki Island
Authors: Nikolakopoulos K. G. , Tsombos P. I. , Photiades A. , Psonis K. , Zervakou A.
Published: January 2017

In this paper we present the combined use of remote sensing and GIS techniques for the geological mapping of Halki Island at 1/50.000 scale. The geological formations, geotectonic units and tectonic structures were recognized in situ and mapped. Interpretation  of  multispectral  satellite  images  (Landsat  TM  &  ETM  and  Terra ASTER) has been carried out in order to detect the linear or not structures of the study area. Different band ratio was also used in order to distinguish and map the limits of the different geotectonic units. The in situ mapping was enhanced with data derived from the digital processing of the satellite data. All the analogical and digital data were imported in a geodatabase specially designed for geological data. After the necessary topological control and corrections, the data were unified and processed in order to create the final map layout at 1/50.000 scale.
Thermal behaviour of stevensite at temperatures up to 800°C.
Authors: Christidis G. E. , Koutsopoulou E.
Published: January 2017

Stevensite is a Mg-trioctahedral smectite with layer charge stemming from vacancies in the octahedral sheet. In the present work we studied the thermal behavior of Jbel Ghassoul stevensite from Morocco, known as Ghassoulite or Rhassoulite, free of talc layers. The clay fraction of the material was separated by sedimentation, it was subsequently heated from 250° to 800° C and the end products were examined with X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy. The influence of heating on the stevensite structure begins at 400°C and is completed at 500°C. It involves irreversible collapse of the layers at ~10Å, which do not re-expand in ethylene glycol (EG) vapors. In contrast, heating at lower temperatures does not affect the stevensite layers, which expand completely in EG. The FTIR spectra indicate the formation of talc-like (kerolite) layers after heating at temperatures exceeding 400°C. Within the current experimental setup, the transition to kerolite layers takes place without the formation of an intermediate mixed-layer stevensite/talc phase. Heating at higher temperatures does not change the transformation pattern, until 800°C where complete dehydroxylation of the 2:1 layer takes place, which is associated with the formation of enstatite. The results of this study clearly demonstrate that opposite to common trioctahedral and dioctahedral smectites, stevensite converts to another layer silicate prior to dehydroxylation.
A new occurrence of pyrophanite from the amphibolite-hosted skarn in Western Kimmeria, Xanthi, Northern Greece.
Authors: Voudouris P. , Xinou A. , Kanellopoulos C. , Kati M. , Mavrogonatos C. , Lyberopoulos P.
Published: January 2017

A new occurrence of pyrophanite (MnTiO3) in Greece is described from the garnetclinopyroxene-wollastonite exoskarn of western Kimmeria. Hostrock of the pyrophanite-bearing skarn is amphibolite (retrogressed eclogites) of the Nestos suture zone in the Rhodope massif. In addition endo- and exo-skarns occur both in the Xanthi granodiorite and the surrouding marbles and consinst of diopside-vesuvianitequartz and wollastonite-garnet-calcite-quartz respectively. Pyrophanite formed in the prograde stage, together with garnet, pyroxene, wollastonite, titanite, zircon, rutile, thorite and ouranothorianite. Retrograde minerals are quartz, epidote, calcite, hematite, and sulfides. Chlorite-geothermometry revealed temperatures in the range from 300 to 350 oC for the retrograde event. Calcic garnets (andraditegrossular solid solutions) from the prograde amphibolite-hosted skarn are chemically zoned with either isotropic or anisotropic cores surrounded by non-cubic anisotropic rims, thus suggesting chemical disequilibrium or disordering phenomena during crystal growth. The pyrophanite crystals are included in titanite and are accompanied by U-rich thorium minerals (uranothorianite, thorite) and by rutile. Electron microprobe analyses indicate that the studied pyrophanites are solid solutions between end-member pyrophanite and ilmenite, with isomorphous substitution of Mn2+ by Fe2+. No Mg has been detected (geikielite end-member). The alteration of pyrophanite and rutile to titanite suggests an increase of fO2 values of the fluids, probably due to increased incursion of meteoric waters to the system. The assemblage thorite, uranothorianite, pyrophanite and zircon indicates a magmatic contribution from the Xanthi granodiorite.
Holistic approach of the curriculum of Greek junior high school on lithosphere and the implementation of the GeoCause – PaP – CoRe baseline approach on geoscience curriculum development
Authors: Bakopoulou A. , Antonarakou A. , Lozios S. , Zambetakis - Lekkas A.
Published: January 2017

This paper examines the effectiveness and the thoroughness of the Greek curriculum on lithosphere of 1st class of junior high school. It discusses the curriculum and textbook ambiguities that lead to conceptual and cognitional gap. We list the criteria (new, revised, existing) for the development of geoscience curriculum. We propose a revised lithosphere curriculum mainly based on a new approach named GeoCause – PaP – CoRe, which considers Earth as a giant geosystem and emphasizes on the cause, parameters, processes and result of the phenomenon. During the pilot implementation of the experimental lithosphere curriculum, we used the GCI tool in order to enhance and revise it. The preliminary results of the research showed that students constructed a robust cognitive framework which consequently led to conceptual change. This approach can become the baseline for the construction of all geoscience curricula and the teaching and learning techniques. The GCI tool can offer continuous feedback and revise of geoscience curricula in general.
Application of geostatistical simulation models in the charac- terization of complex geological structures
Authors: Sideri D. , Modis K. , Rozos D.
Published: January 2017

Geostatistical simulation methods are able to generate numerical models or relations of the spatial distribution of a continuous geologic variable (grade, thickness, density, etc.) or a categorical variable (geological units and lithofacies or rock types). In this work, a review of traditional simulation techniques, as the Sequential Indicator Simulation (SIS), reveals a major pitfall that comes from theoretical difficulties in the development of a valid cross covariance model. On the contrary, a valid indicator cross covariance model is automatically defined in the framework of the Truncated Gaussian Simulation Method (TGS). This method is based on the concept that the categorical variables are obtained by truncating one standard multigaussian random variable at different thresholds. Plurigaussian Simulation Method (PGS) is an extension of the TGS Method but based on the simultaneous truncation of several multigaussian variables. An application of Plurigaussian method to simulate the lithofacies in the alluvial formations of the West Thessaly Basin is finally presented. This method was shown to be effective in reproducing the spatial characteristics of the different lithofacies and their distribution across the studied area.
Microstructural finite strain analysis of the Hafafit granitoids domes South Central Eastern desert of Egypt
Authors: Thabet I. , Kilias A. , Kamh S.
Published: January 2017

The Wadi Hafafit Culmination (WHC) can be subdivided into two main units which are separated by Nugrus thrust shear zone. The WHC domes are occupies the southern part of the Central Eastern Desert of Egypt and is cored by five separated gneissic granitoids ranging in composition from tonalite to granodiorite having compositions consistent with hydrous partial melting of a mafic source suggesting subduction-related magmatism. The leucogranites along thrust zones is related to the late phase of metamorphism of Hafafit rocks. The five main domes of the WHC have been labeled A dome occupies the northern part of WHC, B and C domes occupies the central eastern part of WHC, D dome occupies the central western part of WHC and E dome occupies the southern part of WHC. The fourth domes A, B, C and E are affected by more than one deformation event but D dome is affected by one deformation event. The domes not uniform throughout the WHC according radial pattern of stretching lineation but these domes of WHC were subjected and affected by late-orogenic extension that was controlled by the Najd transform faults and that resulted in exhumation of the WHC domes are oriented NW-SE parallel to the trend of the left-lateral shear zones of Najd fault system.
Coal deposits of Turkey: properties and importance on energy demand
Authors: Oskay R. G. , Inaner H. , Karayigit A. I. , Christanis K.
Published: January 2017

In the last two decades electricity generation and consumption in Turkey was increasing steadily. Around 80% of the electricity generated is derived from fossil fuels such as imported natural gas and oil, and domestic coal. As the energy policy now is focusing on reducing the dependency on imported fuels, coal, particularly this of low-rank, is becoming important for the country. Latest explorations showed that total coal reserves of Turkey reach to 13 Gt with low-rank coals (i.e. lignite and sub-bituminous) being dominant. Coal deposits, formed under various conditions and in various geological times, are widely spread over the territory. The most significant deposits are of Tertiary, especially Neogene age. Neogene coals are most appropriate for combustion in the thermal power plants due to the high total reserves despite the high ash yields and the low calorific values. We imply that applying reasonable exploitation planning and appropriate washing techniques, coal will play a key role in future energy supply of the country.
Analysis of temporal hydrochemical and isotopic variations in spring waters of Eastern Peloponnesus (Greece)
Authors: Matiatos I. , Alexopoulos A.
Published: January 2017

The temporal variation of groundwater hydrochemistry has been used to support observations on the nature of groundwater circulation inside geological terrains of various lithological formations in Eastern Peloponnesus. In the present study, variations in groundwater physical-chemical properties such as electric conductivity, CO2 partial pressure, and calcite saturation index were used to give indications with regard to the nature of the geological formation, the groundwater residence time, and the mode of water circulation inside the hydrogeological systems. Additional isotopic values (δ18Ο) were defined in order to support the aforementioned objectives. The seasonal variations of these properties during three years of monitoring were determined for individual springs appearing in the geological setting of Argolis peninsula, which is mostly composed of carbonate (karstificated in places), ophiolitic and flysch formations. The variation of the parameters was also approached by calculating the coefficient of variation used to detect whether the groundwater flow is of diffuse or/and conduit type. Coefficient of variation values of less than 5% were considered as indicative of the diffuse flow type and therefore a long contact residence time, while higher values were associated with fast-flowing water. However, the isotopic measurements and the overall hydrochemical analysis combined with in situ observations, related to the flow characteristics of the springs, revealed that a spring can be fed by a common diffuse type system although it shows a rather high coefficient of variation.
Development of multi-criteria decision support system (DSS) coupled with GIS for identifying optimal locations for soil aquifer treatment (SAT) facilities
Authors: Tsangaratos P. , Pizpikis T. , Vasileiou E. , Pliakas F. , Schuth C. , Kallioras A.
Published: January 2017

Managed Aquifer Recharge is a wide-spread well-established groundwater engineering method which is largely seen as an alternative potential major source for water and this conclusion becomes even more pronounced in semi-arid and/or arid areas, such as the Mediterranean Basin. The process of site selection for the installation of a MAR facility is of paramount importance for the feasibility and effectiveness of the project itself, especially when the facility will include the use of waters of impaired quality as a recharge source. The main objective of this study is to present the developed framework of a multicriteria Decision Support System (DSS) that integrates within a dynamic platform: the main groundwater engineering parameters associated with MAR applications together with the general geographical features which determine the effectiveness of such a project. The proposed system will provide an advanced coupled DSS-GIS tool capable of handling local MAR-related issues -such as hydrogeology, topography, soil, climate etc., and spatially distributed variables -such as societal, economic, administrative, legislative etc., with special reference to Soil-Aquifer- Treatment technologies. The new SAT-selection tool in question is integrated in ArcGIS software -within a user friendly environment- where data can be processed and displayed using Arc tools for spatial analysis.
Occurrence of arsenic in waters and sediments of the Palea Kavala River, NE Macedonia, Northern Greece
Authors: Giouri K. , Vavelidis M. , Melfos V.
Published: January 2017

However, it can also be added to an aquatic system by anthropogenic activities. The aim of the present study is to determine the total As content in the Palea Kavala river (NE Macedonia, Northern Greece). The correlation between As content and some chemical and physico-chemical parameters of the samples was also examined. Research demonstrated significant As concentrations in the water and the sediments of the river. No correlation was found between As and pH, Fe, Mn in the water samples. Concerning the sediment samples, positive correlation was revealed for As with Fe and Mn content, while negative correlation was revealed between As and pH. This is probably indicative of a higher arsenic mobility in the Palea Kavala river water than in sediments. Since no anthropogenic activities were observed in the river’s catchment area, elevated As concentrations are probably due to the lithology of the broader area and especially the presence of extended ore mineralizations including As-bearing sulphide minerals. However, the research in the study area is in progress since a more detailed evaluation of the local sources of As and mechanisms of As release is required.
Geochemical effect of the rock chemistry and the anthropogenic activities on groundwater: The case study of NW Euboea, Greece
Authors: Kanellopoulos C. , Mitropoulos P.
Published: January 2017

A geochemical study of NW Euboea island ground waters was undertaken, in order to examine the possible effect of the chemical composition of the country rocks of the area as well as of the anthropogenic activities, to the concentration of environmentally important elements and chemical compounds in the groundwaters. NW Euboea consists of a great variety of rock types showing a wide range in mineralogical and chemical composition. The main groups of rocks occurring in NW Euboea are: i) various types of sedimentary rocks e.g. shale and chert formations, carbonate and clastic rocks, ii) ophiolitic rocks including peridotite, gabbro, serpentinite etc, and iii) epizonally metamorphosed basic igneous rocks, with schist and phyllite intercalations. A number of hot springs also occur in the area. The main anthropogenic activity in the area is the agricultural land use, as any significant industrial activity is absent. For that purpose, 45 water samples were collected and analyzed by Spectrophotometry for the main anions and by FP and AAS for major and a number of trace elements. On the basis of those analyses, a number of the water samples were selected and analyzed by ICP-AES and ICP-MS for a large group of mainly metallic trace elements. The interpretation of the analytical data showed clearly that the content of the groundwater for a significant group of trace elements (e.g. Cr, Ni, Zn) was considerably influenced by the chemical composition of the surrounding rocks, especially the ophiolitic and metamorphic rocks. The anthropogenic activities also affect the groundwater quality, near areas where the use of fertilizers and pesticides for agricultural purposes is extensive, resulting to the increase of various anion concentrations (NO3 -, SO4 -2, PO4 -3).
Drastic method to map groundwater vulnerability to pollution using nitrate measurements in agricultural areas
Authors: Samara T. , Yoxas G.
Published: January 2017

DRASTIC model has been used to map groundwater vulnerability to pollution in many areas. Since this method is used in different places without any changes, it cannot consider the effects of pollution type and characteristics. Therefore, the method needs to be calibrated and corrected for that aquifer and specific land use. In this research, by correcting the rates of DRASTIC parameters, one can assess the vulnerability potential to pollution more accurately. The new rates were computed using the relationships between DRASTIC INDEX (DI) corresponding to land use and to nitrate concentration in groundwater. The proposed methodology was applied in deltaic region of alluvial aquifer of Volinaios catchment located in the northwestern part of Peloponnesus. In order to determine the quality of the ground waters, either for watering or irrigating purposes, in the study area, a sampling was made. Correlation was used to find the relationship between the index and measured pollution in each point and therefore, to modify the rates. The results showed that the modified DRASTIC is better than the original method for nonpoint source pollution in agricultural areas.
Revealing the geoheritage of Eastern Crete, through the development of Sitia Geopark, Crete, Greece
Authors: Fassoulas C. , Staridas S. , Perakis V. , Mavrokosta C.
Published: January 2017

In the present document we present the main studies, actions, initiatives and infrastructure developed under the project GEOTOPIA aiming to develop a geopark at the easternmost part of Crete, in Sitia area. The developed activities may be considered as model to establish a geopark in a rural area under the provisions of European and Global Geoparks Networks, aiming intimately to a responsible tourist development. Study area includes the eastern coastal zone of Sitia municipality extended westwards to the Sitia mountains. It presents an impressive geological heritage constituted mainly by the landscape variations (including gorges, plateaus and long cave systems), hydrological resources, rock types and abundant mammal fossils. The project resulted in an inventory, mapping and evaluation of geotopes using existing methodologies, in undertaking conservation, educational and geotourisitc activities, among them the development of two educational projects, two local museums, 15 geotrails, outdoor panels and signposts, as well as printed, visual and web material. A management and action plan has been also conducted presenting the goals, the methodologies, the resources and the timetable to manage the area as a real geopark. Furthermore, the plan foresaw the interaction of geopark initiative in respect to other planned investments and activities in the area.
PLANKTON BIOSTRATIGRAPHY AND PALEOCLIMATIC IMPLICATIONS OF AN EARLY LATE MIOCENE SEQUENCE OF LEVKAS ISLAND, IONIAN SEA, GREECE
Authors: Antonarakou A.
Published: January 2017

Planktonic foraminiferal biostratigraphy is carried out in an Early Tortonian tectonically active setting, located in the Pre-Apulian Foreland Basin in Levkas Island. The studied section (Manassi section) is composed of hemipelagic silty clays and turbidite sandstones, reflecting sedimentation as a result of thrust activity. The distributional pattern of biostratigraphical significant species suggests that the Manassi section has been deposited during the time interval that Globigerinoides obliquus occurs regularly, the neogloboquadriniids are present in low percentages and Paragloborotalia siakensis is continuously present. The correlation with astronomical tuned sections allowed dating the studied section as ranging between 11.54Ma to 11.2Ma, having a lower Tortonian age, above the Serravallian/Tortonian boundary (Paragloborotalia siakensis planktonic foraminiferal zone). On the basis of the obtained palaeoclimatic curve, a series of palaeoclimatic events are recognized. The faunal composition suggests a cooling trend in the lower part which has been correlated with the Mi5 event. This cooling is followed by a warm-temperate phase, punctuated by several negative peaks in the palaeoclimatic curve. The palaeoclimatic evolution of the study area generally corresponds to the global palaeoclimatic trend with some subtle differences, supporting that the regional climate of this area was not merely controlled by global changes in climate.
PRELIMINARY STUDY ON THE SLUMP STRUCTURES OF THE EARLY OLIGOCENE SEDIMENTS OF THE PRE-APULIAN ZONE (ANTIPAXOS ISLAND, NORTH-WESTERN GREECE)
Authors: Karakitsios V. , Triantaphyllou M. , Panoussi P.
Published: January 2017

A spectacular slump is observed in the Alpine sediments of the Antipaxos Island (Pre-Apulian zone, Western Greece). It can be followed in a zone of about 2000 m, in the eastern coast of the island. The slumped unit exposure length extends for more than 200 m, and is directly overlain and underlain by undeformed strata. The slump has an average thickness of 15 m and is composed, as the surrounding undeformed units, of calcareous mudstones and fine-grained calcareous sandstones. Synsedimentary folds that very often are transformed to contorted beds affect slump sediments. Fold and contorted bed axes present a NNW-SSE direction, coinciding with the general direction of the Pre-Apulian zone. Slump and overlain/underlain undeformed sediments originate from the flux of clastic mainly pelagic/neritic biogenic particles, emanating from turbidity currents. More than 50 samples have been collected and analyzed for calcareous nannofossil content. All samples were featured by the contemporaneous presence of abundant nannofossil flora implying the biostratigraphic correlation with the NP23 nannofossil biozone. The biostratigraphic assignment places the slump and the surrounding sediments to the Early Oligocene. As the Pre-Apulian zone corresponds to the slope between the Apulian Platform and the Ionian Basin, the presence of the slump is directly related to the same age sloping and tectonic mobility of this domain. The Antipaxos turbidites sediments are well integrated to the flysch deposition of the external Hellenide foreland basin system.
SEDIMENTOLOGICAL AND GEOPHYSICAL OBSERVATIONS IN THE DELTA PLAIN OF SELINOUS RIVER, ANCIENT HELIKE, NORTHERN PELOPONNESUS GREECE
Authors: Koutsios A. , Kontopoulos N. , Kalisperi D. , Soupios P. , Avramidis P.
Published: January 2017

Fine and coarse grained lithofacies and depositional environments were distinguished in Selinous River delta plain, from sediment cores using an Eijkelkamp percussion corer with barrel windows. The sedimentary sequence of deltaic plain deposits of Selinous River mostly consists of fine lithofacies interbedded occasionally with conglomerate facies. Fine grained lithofacies based on sediment types, structure, color, as well as contact depths and bed characteristics were interpreted as floodplain, crevasse splay, back swamp / fresh water swamp, permanent shallow fresh water lake and ephemeral fresh water lake facies. The coarse grained lithofacies consists of pebble - conglomerates and were interpreted as paleochannels. The Time-Domain Electromagnetic technique, (TEM) was applied in order to define the spatial distribution of lenses of conglomerates, palaeochannels and fine grained sedimentary material to be recognised, at a depth up to 35m. Both the sedimentological and geophysical approaches, in combination with the available geological and geomorphological data of the area, can provide information about the evolution, existence and the geometry of paleochannels of the Selinous River flood plain, and the paleoenvironment of the area of the ancient Helike.
ASSESSMENT OF THE QUANTITY OF THE MATERIAL TRANSPORTED DOWNSTREAM OF SPERCHIOS RIVER, CENTRAL GREECE
Authors: Sigalos G. , Loukaidi V. , Dasaklis S. , Alexouli-Livaditi A.
Published: January 2017

It is well known that streams are an integral part of a natural ecosystem. The Sperchios valley is crossed by a large number of seasonal or permanent flow streams and rivers, out of which the Sperchios river can be distinguished, not only for its length but also for the area surrounded by the boundaries of its drainage system. The present study is aimed to estimate the quantity of the transported material at the mouth of Sperchios River. For this purpose we applied the Revised Universal Soil Loss Equation (RUSLE) model to the Sperchios drainage network in a Geographical Information Systems (GIS) environment. We estimated that approximately 2,308,000 tons per year are flooded mainly down the Sperchios drainage system, supporting the Malian delta.
A NEW LATE PLEISTOCENE MAMMAL LOCALITY FROM WESTERN CRETE
Authors: Iliopoulos G. , Eikamp H. , Fassoulas C.
Published: January 2017

During the last five years systematic explorations of the Natural History Museum of Crete have added more than 20 Pleistocene fossil localities around Crete to the catalogue of the over 70 already known on the Island. The new localities are distributed in all four prefectures of Crete. The most important of these is the newly discovered site of Koutalas at Cape Drepano in Western Crete. The fossil remains are found in two levels and in red cemented clays of a collapsed cave. In the upper level a rich assemblage of micromammal, bird and large mammal remains has been discovered. The large mammals consist of dwarf hippopotamus (Hippopotamus creutzburgi) and elephants (Elephas sp.). A partly articulated skeleton (vertebral column, mandible and few long bones) of a dwarf hippo has been found next to a deciduous molar of an elephantid, indicating that the two taxa probably coexisted. The micromammal remains belong to the giant Cretan mouse Kritimys catreus. Therefore, the age of the assemblage is dated to the Kritimys catreus zone and thus to the late Middle Pleistocene. In the lower level scattered remains of deers, birds and micromammals have been identified, and their age is most likely younger than that of the upper level.
ACTIVE TECTONICS IN THE HELLENIC VOLCANIC ARC: THE KOLUMBO SUBMARINE VOLCANIC ZONE
Authors: Sakellariou D. , Sigurdsson H. , Alexandri M. , Carey S. , Rousakis G. , Nomikou P. , Georgiou P. , Ballas D.
Published: January 2017

This paper studies the rupture system of the Anydhros Basin, northeast of Thera island, and its relationship to the submarine volcanic activity along the Kolumbo line. Anydhros Basin is a N45o E trending elongate basin bounded by the Ios-Fault-Zone (IFZ) towards NW and by the AnydhrosFault-Zone (AFZ) towards SE. The AFZ continues southwestwards, crosscutting Thera Island. Swath bathymetry and seismic profiling data indicate that the Anydhros basin sedimentary infill is fractured by vertical, predominantly strike-slip faults, parallel to which the volcanic cones are aligned. We propose that the “KameniKolumbo Line” is an active, 40km-long, strike-slip fault zone. The KameniKolumbo strike slip runs through the volcanoes of Nea Kameni and Kolumbo and controls the spatial distribution of the volcanic cones along the axis of Anyhdros basin.
LAND SUBSIDENCE INDUCED BY THE OVEREXPLOITATION OF THE AQUIFERS IN KALOCHORI VILLAGE – NEW APPROACH BY MEANS OF THE COMPUTATIONAL GEOTECHNICAL ENGINEERING
Authors: Loupasakis C. , Rozos D.
Published: January 2017

Land subsidence induced by the overexploitation of the aquifers in Kalochori village has been occurring since 1965. The excessive water pumping led to the development of surface subsidence reaching, in several areas, the maximum values of 3 to 4m. The evaluation of the geological, geotechnical and hydrogeological setting of the wider Kalochori region as well as the historical background of the subsidence phenomena provided variable data, which were finally used for the study of the phenomenon by means of a finite element method simulation. The availability of the various geodetic records allowed the cross-checking of the results and the conduction of all necessary back analyses. Also, the knowledge of the land use distribution and the activities taking place in the wider Kalochori region helped the rational interpretation of the phenomenon and the detection of its causal factors.
GEOLOGICAL CONTRIBUTION TO THE TECTONO- STRATIGRAPHY OF THE NAFPLION AREA (NW ARGOLIS, GREECE)
Authors: Photiades A.
Published: January 2017

The geological mapping in scale 1:5.000 in the greater Nafplion area indicated a Tertiary nappe stack of different Pelagonian-originated tectonic units structurally overlying the Subpelagonian series of Argolis Peninsula. The Subpelagonian series as lower unit is characterized by a shallow-water carbonate platform of Middle Triassic to Early Jurassic age, locally deep-water ammonitico-rosso facies and red cherts and is overlain by a tectono-sedimentary ophiolitic melange of Malm age. After the compressive tectonic phase of late Jurassic, the Nafplion area at that time records a severe extensional intra-Cretaceous syn-rift phase leading to the deposition of diachronous Meso-autochthonous Cretaceous limestone deposits rich in faulted-derived limestone breccias series, topped by deep-water limestone of Campanian-Maastrichtian and then from Lower Tertiary pelagic limestone facies passes upwards into post-Ypresian flysch. The different Pelagonian telescoped tectonic units were contemporaneously overthrusting northwestward, over the Subpelagonian post-Ypresian flysch sequence, during the Late Eocene compressive phase, are successively characterized by: (a) a middle tectonic unit of a flyschoidal melange of Late Cretaceous-Early Tertiary age, like the Adheres Melange surfaces in Southern Argolis, associated with various carbonate and ophiolite tectonosomes trapped and carried within this highly disrupted terrigenous flyschoidal melange and, (b) an upper unit consists of Cretaceous carbonate slivers bearing serpentinite sole (Palamidi, Akronafplia, Profitis Ilias, Aria) and/or of Middle Triassic-Early Jurassic carbonate platform slices. The above nappe stacking may be connected with the Eocene continental collision of the Hellenides.