1,721,064 research outputs found
Stratigraphy of the Caporalino-Sant'angelo Unit: A fake Jurassic-Eocene succession of the "Alpine" Corsica
No full textThis paper aims to provide new insights on the Caporalino-Sant’Angelo Unit
outcropping north of Corte, in the Caporalino-Omessa area (NE Corsica). It belongs to the
stack of the units from the “Alpine” Corsica, which overlies the “Hercynian” Corsica
basement and its sedimentary cover. Based on a geological mapping, a refined
lithostratigraphy and new datings, the Caporalino-Sant’Angelo Unit is a fake Middle Jurassic-
Middle Eocene succession, sedimented on the European continental margin, because it is a
Middle Eocene clastic wedge, accumulated in a synorogenic compressive basin located
between the European distal continental margin and the deforming “Corsican” accretionary
wedge. This basin received the siliciclastic sedimentary input from the “Hercynian” Corsica
basement, and the carbonatic input derived from the sedimentary cover of tectonic units,
subsequently involved into the complex “Corsican” accretionary wedge
Calcareous plankton biostratigraphy of the fiume Orte section (Abruzzo, central apennines, Italy)
No full textThe uppermost Rupelian-Messinian portion of the Montagna della Maiella carbonate succession (Bolognano Fm. of Crescenti et al., 1969) outcrops extensively in the northern sector of
the mass if. Most of the previous studies mainly dea! with facies analysis and sequence stratigraphy
of these deposits (Accarie, 1988; Yecsei & Sanders, 1999), but their biostratigraphy is sti li
poor investigated. The aim of thi s study is to improve the biostratigraphy of the hemipelagic
marly deposits of the middle-upper portion of the Bolognano Fm .. These deposits are well
exposed along the Fiume Orta valley, between Salle and Piano d'Orta villages.
The section studi ed is located o n the right si de of the valley, 2 Km south-east of Piano d'Orta
village. The lower portion of the section, which corresponds to the Briozoi superiori member of
the Bolognano Fm. (Yecsei, 1991 ; Bellatalla, 1992), is made up of 35 meters of inner-ramp
skeletal limestones arranged into stacked subaqueous dunes with cross-stratification associated
with bed-concordant and bed-di scordant lamination. They are biocl as tic grain stones and packstones
with abundant bryozoans, echinoderm debris and benthic foramjnifers, among which
Nephrolepidina morgani and Miogypsina globulina were determined. These depos its are capped
by a phosphorite hardground, 25-30 cm thick, rich in glauconite gra in s, phosphatized lithoclasts
and bioclasts and fish teeth. Rare specimens of the nautiloid Aturia are al so present. The hardground
is fol lowed by almost 80 meters of li mestones and marls rich in planktic foraminifers
deposited in an outer ramp environment (Marn.e ad Orbulina member of the Bolognano Fm;
Bellatall a, 1992). The interval starts with 2,5 meters of fine- gra ined bioclastic packstones, that
up-section pass to 68 meters of cyclically bedded and thoroughly bioturbated hemipelagic marly
limestones and calcareous marls. They are wackestones and subordinate packstones with abundant
planktic foraminifers. The last IO meters of this interval consist of very fine to fine-grained
biocla tic packsto nes, which show a clear shallowing-upward depositional trend characteri sed
by both abundant benthic debris input (benthic foraminifers, echinoid remains, pelecypod fragments)
and consistent decrease in planktic foraminifer content. The section ends with 10 meters
of inner ramp thick-bedded bioclastic limestones. This portion belongs to the Calcari a litotamni
member of the Bolognano Fm. (Crescenti et al., 1969).
The biostratigraphic study presented here is focused on the Marn.e ad Orbulina member of
the Bolognano Fm., that in this area shows the maximum thickness. The integrated study of
planktic fo raminifers and calcareous nannofossil s, based on the analyses of 100 samples, indicate
a Langhian to early Tortonian age for this interval. Praeorbulina glomerosa s. I. to Jower
portion of Neogloboquadrina acostaensis planktic foraminifers Zones of Foresi et al. ( 1998),
and the MNN5 to MNN7 calcareous nannofoss il Zones of Fornaci ari et al. ( 1996) were recognized.
The Langhian l Serravallian and Serravallian l Tortonian boundaries were identified as
well.ln agreement with Fornaciari et al. (1996), the Langhian l Serravallian boundary has been
recognized by the LO of Sphenolithus heteromorphus. It is worth mention ing that the LO of
Globorotalia peripheroronda occurs l ,5 meters above this boundary. Following Foresi et al.
(1998), the Serravall ian l Tortonian boundary has been placed at the LO of Paragloborotalia
siakensis. This bioevent predates the FO of Neogloboquadrina atlantica s.s. which occurs about
3 meters above.
The section studied, characterised by severa! calcareous plankton bioevents, can be considered
a reference section for the middle Miocene carbonate successions of the Maiella massif.
Besides, the data coll ected allowed to state some biostratigraphic constrains useful for a better
understanding of the sequence stratigraphic evolution of the Maiella un i t during Miocene times
Stratigraphy of selected wells along the CROP-04 transect
Full text linkSeveral wells drilled in the Campania-Lucania Apennines and in the Apulia foreland have been used to interpret and calibrate the CROP - 04 seismic profile. Among these wells, San Fele 1 (TD 3515 m), Monte Foi 1 (TD 5755 m), San Gregorio Magno 1 + 1bis (TD 3976 m), Contursi 1 (TD 3479.70 m), and Acerno 1 (TD 4625 m) have provided very important constraints and suggestions that have strongly influenced the interpretation of the line. In this paper we present a revision of the well stratigraphy based on the analysis of the cutting samples (thin-section analysis, microfossil and nannofossil analysis) and on the interpretation of the gamma ray/SP and resistivity logs
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
Integrated stratigraphy of Middle-Late Miocene synorogenic deposits of the Eastern Southern Apennine Chain: The San Bartolomeo Flysch
No full textThe present paper deals with the stratigraphic and biostratigraphic study of the middle-late Miocene thrust-top basin deposits of the San Bartolomeo Flysch, exposed north of Matese mountains and analysed during the geological survey of the sheet N° 405 Campobasso of the new Geological Map of Italy, 1:50.000 scale. The integrated study of calcareous nannofossils and planktonic foraminifera, based on the semi-quantitative distribution range of index species, revealed the presence of age-diagnostic assemblages which are comparable with those of different middle-late Miocene deep-marine sedimentary settings of the Mediterranean Basin. The biostratigraphic dataset suggests an early Serravallian – early middle Tortonian age. In terms of calcareous nannofossil biostratigraphy, the studied succession falls between the Last Occurrences of Sphenolithus heteromorphus and the First Occurrence of Discoaster bellus gr., corresponding to the MNN6 – MNN8 zone interval. In terms of planktonic foraminiferal biostratigraphy the studied sediments fall between the Last Occurrence of Globorotalia peripheroronda and the First Regular Occurrence of Neogloboquadrina acostaensis, corresponding to the MM6 p.p. - MMi10 p.p. zone interval. This study documents the applicability of the recent Mediterranean middle –late Miocene biozonations for the biostratigraphic study of siliciclastic synorogenic sediments, and challenges the most recent studies that dated the San Bartolomeo Flysch to the late Tortonian- early Messinian
Aspetti clinici ed eziologici della rogna auricolare delle capre in Toscana
No full textParasitic otitis associated with Psoroptes sp. mites was diagnosed for the first time in two flocks of goats located in Tuscany, Italy. Some animals presented clinical signs of ear mite infection, but the parasites were also isolated from the ears of two clinically silent goats. A morphometric study was conducted to establish whether there are significant morphological differences between mites collected from the ears of goats and Psoroptes cuniculi collected from the ears of rabbits. Three rabbits were experimentally infected with mites isolated from the auditory canal of goats, while nine goats were infected with mites isolated from rabbits. After three to five months all rabbits and five of the nine goats contained reproducing mite populations in their ears; also the morphometric analysis revealed no difference between rabbit and goat ear mites. It follows that Psoroptes cuniculi represents the etiologic agent of parasitic otitis in both these two animal species
Therapeutic efficacy of linalool for the topical treatment of parasitic otitis caused by Psoroptes cuniculi in the rabbit and in the goat
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