1,720,983 research outputs found
Evidence of overpressured fluids in the thrust zone of the "Bobbio Window" (Trebbia Valley, Northern Apennines)
No full textTectonic setting of the Vardar suture zone (Dinaric-Hellenic belt): the example of the Kopaonik area (southern Serbia)
Full text linkIn the tectonic setting of the Dinaric-Hellenic belt, the Vardar Zone is represented by a NW-SE to N-S striking assemblage of oceanic and continental
units, each showing different metamorphic grade and deformation features. In this paper, a detailed description of the stratigraphic and structural features of
the tectonic units cropping out in the Kopaonik area, belonging to the Vardar Zone of Serbia, is presented. In addition, a 1:50.000 scale geological map of the
studied area is also provided.
In the Kopaonik area is present a stack of tectonic units, originated during the Alpine deformation phases and referred to both External and Central Vardar
Zones of Dimitrijevic ́ (1997). These units are represented, from bottom to top, by the Kopaonik Metamorphic Complex, the Brzec ́e Unit, the Subophiolite
Mélange, the Ophiolite Unit and the Brus Unit. The stack of tectonic units is intruded by Early Oligocene granitoids, referred to as the Kopaonik Intrusive
Complex. Moreover, the relationships among the tectonic units are unconformably covered by Miocene volcanic rocks and sedimentary deposits.
The stratigraphic and structural dataset presented in this paper allows some considerations about the paleogeographic domain of origin for the successions
of the different units as well as some interpretations about the tectonic history of the Vardar Zone
Geological map of Kopaonik area, Serbia. 1:50.000 scale.
No full textCarta geologica alla scala 1:50.000, con monografia, dai rilevamenti originali degli autori, carta revisionata da referee anonim
Geological and geochemical features of the Kopaonik intrusive complex (Vardar zone, Serbia)
No full textIn the Vardar Zone of the Dinaric-Hellenic Belt, several intrusive magmatic bodies with an age spanning from Early Cretaceous to Miocene occur. One of the main bodies is represented by the Kopaonik Intrusive Complex that crops out in Southern Serbia in an area of about 90 km2. This paper deals with the geological and geochemical features of the Kopaonik Intrusive Complex, in order to provide useful constraints for its interpretation in the frame of the post-collisional magmatic activity that characterized the more internal zone of the Dinaric-Hellenic Belt.
The Kopaonik intrusive complex is characterized by a dome-like structure consisting of three concentric magmatic facies, including lithotypes ranging from qtz-diorites to granodiorites and qtz-monzonites, with a gradual and continuing transition between them. The collected data indicate that the Kopaonik granitoids are I-type, with high-K calc-alkaline affinity. The origin of the intrusive complex is partially obliterated by shallow interaction between the qtzdioritic rocks and carbonate host rocks, affecting Ca-Sr contents and 87Sr/86Sr ratios. Nevertheless, the collected geological, petrographical and petrochemical data suggest a strong genetic relationship of the three facies. A minimum emplacement age of 31.5±0.3 Ma (Early Oligocene) is provided by Rb-Sr wholerock biotite age.
The Kopaonik intrusives belong to a continuous Late Paleogene-Middle Miocene magmatic belt developed throughout the Balkan Peninsula from the Eastern Alps to Northwestern Turkey, and linked with subduction of the NeoTethys oceanic plate under the Eurasia. In this framework, the source of the Kopaonik magmatic rocks can be identified in a mantle wedge strongly modified by subduction-induced metasomatism
The metabasites from The Kopaonik Metamorphic Complex, Vardar Zone, Southern Serbia: remnants of the rifting-related magmatism of the Mesothetyan domain or evidence for Paleotethys closure in the Dinaric-Hellenic belt?
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Alpine tectono-metamorphic history of the continental units from Vardar Zone: the example of Kopaonik Metamorphic Complex (Dinaric-Hellenic belt, Serbia)
No full text- …
