1,720,975 research outputs found
Supporting Information for the submitted manuscript by Rajič et al.
No full text<p>Files shared here contain additional information for the submitted manuscript by Rajič et al.</p>
<p>Supplementary Information file contain three Supplementary Texts, two Supplementary Tables and eight Supplementary Figures.</p>
<p>Raman spectra.zip file contains all raw Raman spectra acquired in this study, along with READ ME text file.</p>
Supporting Information for the submitted manuscript by Rajič et al. The origin of tectonic mélanges and implication for the subduction interface processes
No full text<p>Files shared here contain supporting information for the submitted manuscript by Rajič et al.</p>
<p>Appendix 1 file contains Text A.1, Tables A.1-2 and Figures A.1-8.</p>
<p>Appendix 2 file contains all raw Raman spectra acquired in this study, along with READ ME text file.</p>
Supporting Information for the submitted manuscript by Rajič et al.
No full text<p>Files shared here contain supporting information for the submitted manuscript by Rajič et al.</p>
<p>Appendix 1 file contains Text A.1, Tables A.1-2 and Figures A.1-7.</p>
<p>Appendix 2 file contains all raw Raman spectra acquired in this study, along with READ ME text file.</p>
Réorganisation structurale des matériaux carbonés lors de l’enfouissement et de la déformation : Expériences de déformation et exemples naturels
No full textLes particules de matériaux carbonés (CM), présentes dans la majorité des sédiments, enregistrent une évolution progressive lors de l’enfouissement, passant d’une structure amorphe à une structure parfaitement ordonnée (i.e. graphite). Cette évolution s’effectue via de deux phases successives, la carbonisation et la graphitisation, qui peuvent être quantitativement suivies grâce à la spectroscopie Raman (RSCM). Cependant, le contrôle unique supposé de la température, ignorant d’autres potentiels facteurs, est encore débattu. Dans cette étude, l’effet de la déformation sur la cristallinité de la CM a été exploré à travers l’analyse d’échantillons naturels, provenant de prismes d’accrétions (Shimanto Belt, Kodiak Accretionary Complex, Alpes), et d’expériences de déformation reproduisant des déformations à vitesses faibles (non-sismique) et rapides (sismique). L’analyse a été focalisée sur des températures allant de 200 à 350°C, couvrant les processus de carbonisation et de graphitisation précoce. L’utilisation de profils de haute-résolution ont permis de corréler les microstructures et le signal RSCM. Le ratio d’intensité (IR) s’est montré comme un paramètre RSCM approprié à l’étude de l’effet de la déformation. Indépendamment du mécanisme de déformation (i.e. sismique ou non-sismique), l’IR augmente lorsque la déformation est localisée, montrant l’effet de la déformation sur le signal Raman. De plus, basé sur des échantillons ayant connu un métamorphisme de contact, couplés à des expériences de flash-heating, le Raman a montré son efficacité (D3/Gsl Ratio) dans la détection des chauffages courts et intenses. Cette méthode a été appliquée à des Black Fault Rocks considérées comme le résultat d’une trempe d’une veine fondue formée lors de glissement sismique. Les profils d’IR et le D3/Gsl Ratio ont permis de discriminer les mécanismes de formations (i.e. fusion ou comminution seul) de ces objets.Particles of carbonaceous material (CM), present in most sediments, experience a progressive evolution during their burial from immature and amorphous structure to fully mature and crystalline graphite. This transformation, decomposed in two successive stages (carbonization then graphitization), can be quantitatively followed with Raman spectroscopy (RSCM), and is assumed to be controlled at the first order by temperature, while the potential role of other parameters is still controversial. In this work we explore the effect of strain on CM crystallinity with natural examples from accretionary complexes (Shimanto belt, Kodiak Accretionary Complex, Alps) and experiments encompassing both high strain rate (seismic) and low strain-rate (non-seismic) deformation. We focused on the low temperature range from 200 to 350°C, spanning the carbonization and the early graphitization stages. We used high-resolution profiles to correlate RSCM signal to microstructures. Intensity ratio (IR) appears to be the most relevant RSCM parameter to record deformation. Irrespective of the deformation mechanism (i.e. in low and high strain-rate examples), IR is increased in the zone where strain is localized, demonstrating the large influence of strain on Raman signal. In addition, using geological examples of contact metamorphism, combined with flash heating experiments, we demonstrated the potential of a RSCM feature (D3/Gsl Ratio) to detect short-lived and intense heating events. When applied to Black Fault Rocks considered as the result of quenching of a melt formed during fast seismic slip, these new tools (profiles of IR and D3/Gsl Ratio) can discriminate fault cores that melted from those where only mechanical comminution was active
Raman spectra on carbonaceous matter - Montagne Noire, France
No full textAll data are Raman spectra (including the raw data and their treatment) obtained on particles of carbonaceous matter dispersed in metasediments from the "Montagne Noire" Zone, France
Raman spectra on carbonaceous matter - Glarus Thrust area, Switzerland
No full textAll data are Raman spectra (including the raw data and their treatment) obtained on particles of carbonaceous matter dispersed in metasediments from the Infrahelveltic Nappe from the Glarus Zone, Switzerland
Raman spectra on carbonaceous matter - Shimanto Belt, Japan
No full textAll data are Raman spectra (including the raw data and their treatment) obtained on particles of carbonaceous matter dispersed in metasediments from the Shimanto Belt Zone, Japan
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
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