1,721,101 research outputs found
A late episode of Ferrar magmatism? Geochemistry and preliminary 40Ar/39Ar results of high Fe (SPCT) tholeiites fron Southern Victoria Land, Antarctica
No full textWhithin plate continental magmatism and its mantle sources.
No full textAn informal meeting on within-plate continental magmatism was
held at Padova University on April 2012. This meeting was organized
to honor the memory of our friend and colleague Prof. Enzo Michele
Piccirillo (1943–2012) (Fig. 1). The contribution of Prof. Piccirillo towards our understanding of the petrogenesis of tholeiitic and alkaline
within-plate continental magmatism and of its mantle source rocks
was crucial for both the international and Italian scientific communities.
In particular, the international research team lead by Prof. Piccirillo on
the Paraná and CAMP continental flood basalts in South America was
among the first to unravel the origin of these major large igneous provinces (LIPs) of the Phanerozoic (and of their Proterozoic and Archean counterparts) and representmilestones in our knowledge of the geology and petrology of the SouthAmerican platform. Prof. Piccirillo worked also on alkaline magmatism (e.g., from Kenya, Ethiopia, Cameroon, Brazil, Paraguay) and investigated the mineral chemistry of
clinopyroxene in rocks of various tectonic settings. The results are reported in some 140 peer reviewed papers. Those who knew him as a
teacher and as a colleaguewill always remember his enthusiasm, imagination, the ability to work and the rigorous approach with which he faced every new research topic and, in general, Enzo's extraordinary
human qualities. Therefore we would like to thank this special issue as
a tribute to Prof. Piccirillo and a way of thanking himfor all he taught us
Shallow refertilization processes in the Siberian sub-cratonic mantle: evidences from garnet and associated minerals from the Zagadochnaya kimberlite (Yakutia, Russia)
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
High-Fe (SPCT) Ferrar tholeiites from Prince Albert Mountains, Antarctica: geochemistry and 40Ar/39Ar results.
No full text
Clinopyroxene of spinel peridotite mantle xenoliths from Lake Nji (Cameron Volcanic Line, W Africa): crystal chemistry and petrological implications.
No full text- …
